Merge pull request #1550 from Naros/sync-4.3-stable

gdextension: Sync with upstream commit 77dcf97d82cbfe4e4615475fa52ca03da645dbd8 (4.3-stable)

.editorconfig

@@ -0,0 +1,16 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_size = 4
+indent_style = tab
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[{*.py,SConstruct}]
+indent_style = space
+
+[*.{yml,yaml}]
+indent_size = 2
+indent_style = space

.gitattributes

@@ -1,6 +1,2 @@
-*.c eol=lf
-*.cpp eol=lf
-*.gd eol=lf
-*.tscn eol=lf
-*.cfg eol=lf
-*.godot eol=lf
+# Normalize EOL for all files that Git considers text files
+* text=auto eol=lf

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -0,0 +1,71 @@
+name: Bug report
+description: Report a bug in the godot-cpp GDExtension/GDNative integration
+body:
+
+- type: markdown
+  attributes:
+    value: |
+      - When reporting bugs, you'll make our life simpler (and the fix will come sooner) if you follow the guidelines in this template.
+      - Write a descriptive issue title above.
+      - The golden rule is to **always open *one* issue for *one* bug**. If you notice several bugs and want to report them, make sure to create one new issue for each of them.
+      - Search [open](https://github.com/godotengine/godot-cpp/issues) and [closed](https://github.com/godotengine/godot-cpp/issues?q=is%3Aissue+is%3Aclosed) issues to ensure it has not already been reported. If you don't find a relevant match or if you're unsure, don't hesitate to **open a new issue**. The bugsquad will handle it from there if it's a duplicate.
+      - Verify that you are using a [supported Godot version](https://docs.godotengine.org/en/latest/about/release_policy.html).
+
+- type: input
+  attributes:
+    label: Godot version
+    description: >
+      Specify the Git commit hash if using a development or non-official build.
+      If you use a custom build, please test if your issue is reproducible in official builds too.
+    placeholder: 3.3.stable, 4.0.dev (3041becc6)
+  validations:
+    required: true
+
+- type: input
+  attributes:
+    label: godot-cpp version
+    description: >
+      Specify the Git commit hash if using a development build.
+    placeholder: 3.3.stable, 4.0.dev (3041becc6)
+  validations:
+    required: true
+
+- type: input
+  attributes:
+    label: System information
+    description: |
+      - Specify the OS version, and when relevant hardware information.
+      - For issues that are likely OS-specific and/or graphics-related, please specify the CPU model and architecture.
+      - **Bug reports not including the required information may be closed at the maintainers' discretion.** If in doubt, always include all the requested information; it's better to include too much information than not enough information.
+    placeholder: Windows 10, Intel Core i5-7200U
+  validations:
+    required: true
+
+- type: textarea
+  attributes:
+    label: Issue description
+    description: |
+      Describe your issue briefly. What doesn't work, and how do you expect it to work instead?
+      You can include images or videos with drag and drop, and format code blocks or logs with <code>```</code> tags.
+  validations:
+    required: true
+
+- type: textarea
+  attributes:
+    label: Steps to reproduce
+    description: |
+      List of steps or sample code that reproduces the issue. Having reproducible issues is a prerequisite for contributors to be able to solve them.
+      If you include a minimal reproduction project below, you can detail how to use it here.
+  validations:
+    required: true
+
+- type: textarea
+  attributes:
+    label: Minimal reproduction project
+    description: |
+      - A small Godot project which reproduces the issue, with no unnecessary files included. Be sure to not include the `.godot` folder in the archive (but keep `project.godot`).
+      - Required, unless the reproduction steps are trivial and don't require any project files to be followed. In this case, write "N/A" in the field.
+      - Drag and drop a ZIP archive to upload it. **Do not select another field until the project is done uploading.**
+      - **If you've been asked by a maintainer to upload a minimal reproduction project, you *must* do so within 7 days.** Otherwise, your bug report will be closed as it'll be considered too difficult to diagnose.
+  validations:
+    required: true

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,14 @@
+blank_issues_enabled: false
+
+contact_links:
+  - name: Godot proposals
+    url: https://github.com/godotengine/godot-proposals
+    about: Please submit feature proposals on the Godot proposals repository, not here.
+
+  - name: Godot documentation repository
+    url: https://github.com/godotengine/godot-docs
+    about: Please report issues with documentation on the Godot documentation repository, not here.
+
+  - name: Godot community channels
+    url: https://godotengine.org/community
+    about: Please ask for technical support on one of the other community channels, not here.

.github/actions/godot-cache-restore/action.yml

@@ -1,5 +1,5 @@
-name: Setup Godot build cache
-description: Setup Godot build cache.
+name: Restore Godot build cache
+description: Restore Godot build cache.
 inputs:
   cache-name:
     description: The cache base name (job name by default).
@@ -10,9 +10,8 @@ inputs:
 runs:
   using: "composite"
   steps:
-    # Upload cache on completion and check it out now
-    - name: Load .scons_cache directory
-      uses: actions/cache@v3
+    - name: Restore .scons_cache directory
+      uses: actions/cache/restore@v3
       with:
         path: ${{inputs.scons-cache}}
         key: ${{inputs.cache-name}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}-${{github.sha}}

.github/actions/godot-cache-save/action.yml

@@ -0,0 +1,17 @@
+name: Save Godot build cache
+description: Save Godot build cache.
+inputs:
+  cache-name:
+    description: The cache base name (job name by default).
+    default: "${{github.job}}"
+  scons-cache:
+    description: The SCons cache path.
+    default: "${{github.workspace}}/.scons-cache/"
+runs:
+  using: "composite"
+  steps:
+    - name: Save SCons cache directory
+      uses: actions/cache/save@v4
+      with:
+        path: ${{inputs.scons-cache}}
+        key: ${{inputs.cache-name}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}-${{github.sha}}

.github/workflows/ci.yml

@@ -4,6 +4,8 @@ on: [push, pull_request]
 env:
   # Only used for the cache key. Increment version to force clean build.
   GODOT_BASE_BRANCH: master
+  # Used to select the version of Godot to run the tests with.
+  GODOT_TEST_VERSION: master
 
 concurrency:
   group: ci-${{github.actor}}-${{github.head_ref || github.run_number}}-${{github.ref}}
@@ -22,6 +24,7 @@ jobs:
             platform: linux
             artifact-name: godot-cpp-linux-glibc2.27-x86_64-release
             artifact-path: bin/libgodot-cpp.linux.template_release.x86_64.a
+            run-tests: true
             cache-name: linux-x86_64
 
           - name: 🐧 Linux (GCC, Double Precision)
@@ -30,6 +33,7 @@ jobs:
             artifact-name: godot-cpp-linux-glibc2.27-x86_64-double-release
             artifact-path: bin/libgodot-cpp.linux.template_release.double.x86_64.a
             flags: precision=double
+            run-tests: false
             cache-name: linux-x86_64-f64
 
           - name: 🏁 Windows (x86_64, MSVC)
@@ -37,6 +41,7 @@ jobs:
             platform: windows
             artifact-name: godot-cpp-windows-msvc2019-x86_64-release
             artifact-path: bin/libgodot-cpp.windows.template_release.x86_64.lib
+            run-tests: false
             cache-name: windows-x86_64-msvc
 
           - name: 🏁 Windows (x86_64, MinGW)
@@ -45,6 +50,7 @@ jobs:
             artifact-name: godot-cpp-linux-mingw-x86_64-release
             artifact-path: bin/libgodot-cpp.windows.template_release.x86_64.a
             flags: use_mingw=yes
+            run-tests: false
             cache-name: windows-x86_64-mingw
 
           - name: 🍎 macOS (universal)
@@ -53,6 +59,7 @@ jobs:
             artifact-name: godot-cpp-macos-universal-release
             artifact-path: bin/libgodot-cpp.macos.template_release.universal.a
             flags: arch=universal
+            run-tests: false
             cache-name: macos-universal
 
           - name: 🤖 Android (arm64)
@@ -70,8 +77,17 @@ jobs:
             artifact-name: godot-cpp-ios-arm64-release
             artifact-path: bin/libgodot-cpp.ios.template_release.arm64.a
             flags: arch=arm64
+            run-tests: false
             cache-name: ios-arm64
 
+          - name: 🌐 Web (wasm32)
+            os: ubuntu-20.04
+            platform: web
+            artifact-name: godot-cpp-web-wasm32-release
+            artifact-path: bin/libgodot-cpp.web.template_release.wasm32.a
+            run-tests: false
+            cache-name: web-wasm32
+
     env:
       SCONS_CACHE: ${{ github.workspace }}/.scons-cache/
       EM_VERSION: 3.1.39
@@ -79,18 +95,18 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           submodules: recursive
 
-      - name: Setup Godot build cache
-        uses: ./.github/actions/godot-cache
+      - name: Restore Godot build cache
+        uses: ./.github/actions/godot-cache-restore
         with:
           cache-name: ${{ matrix.cache-name }}
         continue-on-error: true
 
       - name: Set up Python (for SCons)
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
         with:
           python-version: '3.x'
 
@@ -103,7 +119,7 @@ jobs:
 
       - name: Web dependencies
         if: ${{ matrix.platform == 'web' }}
-        uses: mymindstorm/setup-emsdk@v13
+        uses: mymindstorm/setup-emsdk@v14
         with:
           version: ${{env.EM_VERSION}}
           actions-cache-folder: ${{env.EM_CACHE_FOLDER}}
@@ -120,22 +136,66 @@ jobs:
 
       - name: Generate godot-cpp sources only
         run: |
-          scons platform=${{ matrix.platform }} build_library=no ${{ matrix.flags }}
+          scons platform=${{ matrix.platform }} verbose=yes build_library=no ${{ matrix.flags }}
           scons -c
 
       - name: Build godot-cpp (debug)
         run: |
-          scons platform=${{ matrix.platform }} target=template_debug ${{ matrix.flags }}
+          scons platform=${{ matrix.platform }} verbose=yes target=template_debug ${{ matrix.flags }}
 
       - name: Build test without rebuilding godot-cpp (debug)
         run: |
           cd test
-          scons platform=${{ matrix.platform }} target=template_debug ${{ matrix.flags }} build_library=no
+          scons platform=${{ matrix.platform }} verbose=yes target=template_debug ${{ matrix.flags }} build_library=no
 
       - name: Build test and godot-cpp (release)
         run: |
           cd test
-          scons platform=${{ matrix.platform }} target=template_release ${{ matrix.flags }}
+          scons platform=${{ matrix.platform }} verbose=yes target=template_release ${{ matrix.flags }}
+
+      - name: Save Godot build cache
+        uses: ./.github/actions/godot-cache-save
+        with:
+          cache-name: ${{ matrix.cache-name }}
+        continue-on-error: true
+
+      - name: Download latest Godot artifacts
+        uses: dsnopek/action-download-artifact@1322f74e2dac9feed2ee76a32d9ae1ca3b4cf4e9
+        if: ${{ matrix.run-tests && env.GODOT_TEST_VERSION == 'master' }}
+        with:
+          repo: godotengine/godot
+          branch: master
+          event: push
+          workflow: linux_builds.yml
+          workflow_conclusion: success
+          name: linux-editor-mono
+          search_artifacts: true
+          check_artifacts: true
+          ensure_latest: true
+          path: godot-artifacts
+
+      - name: Prepare Godot artifacts for testing
+        if: ${{ matrix.run-tests && env.GODOT_TEST_VERSION == 'master' }}
+        run: |
+          chmod +x ./godot-artifacts/godot.linuxbsd.editor.x86_64.mono
+          echo "GODOT=$(pwd)/godot-artifacts/godot.linuxbsd.editor.x86_64.mono" >> $GITHUB_ENV
+
+      - name: Download requested Godot version for testing
+        if: ${{ matrix.run-tests && env.GODOT_TEST_VERSION != 'master' }}
+        run: |
+          wget "https://github.com/godotengine/godot-builds/releases/download/${GODOT_TEST_VERSION}/Godot_v${GODOT_TEST_VERSION}_linux.x86_64.zip" -O Godot.zip
+          unzip -a Godot.zip
+          chmod +x "Godot_v${GODOT_TEST_VERSION}_linux.x86_64"
+          echo "GODOT=$(pwd)/Godot_v${GODOT_TEST_VERSION}_linux.x86_64" >> $GITHUB_ENV
+
+      - name: Run tests
+        if: ${{ matrix.run-tests }}
+        run: |
+          $GODOT --headless --version
+          cd test
+          # Need to run the editor so .godot is generated... but it crashes! Ignore that :-)
+          (cd project && (timeout 30 $GODOT --import --headless >/dev/null 2>&1 || true))
+          ./run-tests.sh
 
       - name: Upload artifact
         uses: actions/upload-artifact@v3
@@ -149,7 +209,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           submodules: recursive
 
@@ -173,7 +233,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           submodules: recursive
 
@@ -197,7 +257,7 @@ jobs:
     runs-on: windows-2019
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           submodules: recursive
 

.github/workflows/static_checks.yml

@@ -7,48 +7,27 @@ concurrency:
 
 jobs:
   static-checks:
-    name: Format (clang-format, black format, file format)
-    runs-on: ubuntu-20.04
+    name: Format (clang-format, ruff format, file format)
+    runs-on: ubuntu-22.04
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 2
 
-      # Azure repositories are not reliable, we need to prevent Azure giving us packages.
-      - name: Make apt sources.list use the default Ubuntu repositories
+      - name: Get changed files
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
-          sudo rm -f /etc/apt/sources.list.d/*
-          sudo cp -f misc/ci/sources.list /etc/apt/sources.list
-          wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
-          sudo apt-add-repository "deb http://apt.llvm.org/focal/ llvm-toolchain-focal-15 main"
-          sudo apt-get update
+          if [ "${{ github.event_name }}" == "pull_request" ]; then
+            files=$(git diff-tree --no-commit-id --name-only -r HEAD^1..HEAD 2> /dev/null || true)
+          elif [ "${{ github.event_name }}" == "push" -a "${{ github.event.forced }}" == "false" -a "${{ github.event.created }}" == "false" ]; then
+            files=$(git diff-tree --no-commit-id --name-only -r ${{ github.event.before }}..${{ github.event.after }} 2> /dev/null || true)
+          fi
+          files=$(echo "$files" | grep -v 'thirdparty' | xargs -I {} sh -c 'echo "\"./{}\""' | tr '\n' ' ')
+          echo "CHANGED_FILES=$files" >> $GITHUB_ENV
 
-      - name: Install dependencies
-        run: |
-          sudo apt-get install -qq dos2unix recode clang-format-15 libxml2-utils python3-pip moreutils
-          sudo update-alternatives --remove-all clang-format || true
-          sudo update-alternatives --install /usr/bin/clang-format clang-format /usr/bin/clang-format-15 100
-          sudo pip3 install black==22.3.0 pygments pytest==7.1.2 mypy==0.971
-
-      - name: File formatting checks (file_format.sh)
-        run: |
-          bash ./misc/scripts/file_format.sh
-
-      - name: Header guards formatting checks (header_guards.sh)
-        run: |
-          bash ./misc/scripts/header_guards.sh
-
-      - name: Python style checks via black (black_format.sh)
-        run: |
-          bash ./misc/scripts/black_format.sh
-
-      - name: Python scripts static analysis (mypy_check.sh)
-        run: |
-          bash ./misc/scripts/mypy_check.sh
-
-      - name: Bindings generation checks (ensures get_file_list returns all generated files)
-        run: |
-          python ./misc/scripts/check_get_file_list.py
-
-      - name: Style checks via clang-format (clang_format.sh)
-        run: |
-          bash ./misc/scripts/clang_format.sh
+      - name: Style checks via pre-commit
+        uses: pre-commit/action@v3.0.1
+        with:
+          extra_args: --verbose --hook-stage manual --files ${{ env.CHANGED_FILES }}

.gitignore

@@ -8,7 +8,7 @@
 include/gen
 src/gen
 
-# Build configuarion.
+# Build configuration.
 /custom.py
 
 # Misc
@@ -100,7 +100,7 @@ AppPackages/
 
 # Others
 sql/
-*.Cache
+*.[Cc]ache
 ClientBin/
 [Ss]tyle[Cc]op.*
 ~$*
@@ -191,3 +191,7 @@ godot.creator.*
 
 # compile commands (https://clang.llvm.org/docs/JSONCompilationDatabase.html)
 compile_commands.json
+
+# Python development
+.venv
+venv

.pre-commit-config.yaml

@@ -0,0 +1,64 @@
+default_language_version:
+  python: python3
+
+exclude: |
+  (?x)^(
+    gdextension/extension_api\.json|
+    gdextension/gdextension_interface\.h
+  )$
+
+repos:
+  - repo: https://github.com/pre-commit/mirrors-clang-format
+    rev: v17.0.6
+    hooks:
+      - id: clang-format
+
+  - repo: https://github.com/astral-sh/ruff-pre-commit
+    rev: v0.4.4
+    hooks:
+      - id: ruff
+        args: [--fix]
+      - id: ruff-format
+
+  - repo: https://github.com/pre-commit/mirrors-mypy
+    rev: v0.971
+    hooks:
+      - id: mypy
+        files: \.py$
+        types_or: [text]
+
+  - repo: https://github.com/codespell-project/codespell
+    rev: v2.3.0
+    hooks:
+      - id: codespell
+        additional_dependencies: [tomli]
+
+  - repo: local
+    hooks:
+      - id: copyright-headers
+        name: copyright-headers
+        language: python
+        entry: python misc/scripts/copyright_headers.py
+        files: \.(c|h)pp$
+        exclude: ^test/
+
+      - id: header-guards
+        name: header-guards
+        language: python
+        entry: python misc/scripts/header_guards.py
+        files: \.hpp$
+        exclude: ^test/
+
+      - id: file-format
+        name: file-format
+        language: python
+        entry: python misc/scripts/file_format.py
+        types_or: [text]
+
+      - id: check-get-file-list
+        name: check-get-file-list
+        language: python
+        entry: python misc/scripts/check_get_file_list.py
+        pass_filenames: false
+        always_run: true
+        stages: [manual]

CMakeLists.txt

@@ -3,8 +3,9 @@
 #
 # godot-cpp cmake arguments
 # GODOT_GDEXTENSION_DIR:		Path to the directory containing GDExtension interface header and API JSON file
-# GODOT_CPP_SYSTEM_HEADERS		Mark the header files as SYSTEM. This may be useful to supress warnings in projects including this one.
+# GODOT_CPP_SYSTEM_HEADERS		Mark the header files as SYSTEM. This may be useful to suppress warnings in projects including this one.
 # GODOT_CPP_WARNING_AS_ERROR	Treat any warnings as errors
+# GODOT_ENABLE_HOT_RELOAD       Build with hot reload support. Defaults to YES for Debug-builds and NO for Release-builds.
 # GODOT_CUSTOM_API_FILE:		Path to a custom GDExtension API JSON file (takes precedence over `gdextension_dir`)
 # FLOAT_PRECISION:				Floating-point precision level ("single", "double")
 #
@@ -37,8 +38,8 @@
 # Todo
 # Test build for Windows, Mac and mingw.
 
+cmake_minimum_required(VERSION 3.13)
 project(godot-cpp LANGUAGES CXX)
-cmake_minimum_required(VERSION 3.12)
 
 option(GENERATE_TEMPLATE_GET_NODE "Generate a template version of the Node class's get_node." ON)
 option(GODOT_CPP_SYSTEM_HEADERS "Expose headers as SYSTEM." ON)
@@ -47,11 +48,6 @@ option(GODOT_CPP_WARNING_AS_ERROR "Treat warnings as errors" OFF)
 # Add path to modules
 list( APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/" )
 
-# Check if we are building ourself or being included
-if(${PROJECT_NAME} STREQUAL ${CMAKE_PROJECT_NAME})
-    set(GODOT_CPP_BUILDING_SELF ON)
-endif()
-
 # Set some helper variables for readability
 set( compiler_is_clang "$<OR:$<CXX_COMPILER_ID:AppleClang>,$<CXX_COMPILER_ID:Clang>>" )
 set( compiler_is_gnu "$<CXX_COMPILER_ID:GNU>" )
@@ -62,6 +58,13 @@ if("${CMAKE_BUILD_TYPE}" STREQUAL "")
 	set(CMAKE_BUILD_TYPE Debug)
 endif()
 
+# Hot reload is enabled by default in Debug-builds
+if("${CMAKE_BUILD_TYPE}" STREQUAL "Debug")
+    option(GODOT_ENABLE_HOT_RELOAD "Build with hot reload support" ON)
+else()
+    option(GODOT_ENABLE_HOT_RELOAD "Build with hot reload support" OFF)
+endif()
+
 if(NOT DEFINED BITS)
 	set(BITS 32)
 	if(CMAKE_SIZEOF_VOID_P EQUAL 8)
@@ -72,21 +75,22 @@ endif()
 # Input from user for GDExtension interface header and the API JSON file
 set(GODOT_GDEXTENSION_DIR "gdextension" CACHE STRING "")
 set(GODOT_CUSTOM_API_FILE "" CACHE STRING "")
-set(FLOAT_PRECISION "single" CACHE STRING "")
-if ("${FLOAT_PRECISION}" STREQUAL "double")
-	add_definitions(-DREAL_T_IS_DOUBLE)
-endif()
 
 set(GODOT_GDEXTENSION_API_FILE "${GODOT_GDEXTENSION_DIR}/extension_api.json")
 if (NOT "${GODOT_CUSTOM_API_FILE}" STREQUAL "")  # User-defined override.
 	set(GODOT_GDEXTENSION_API_FILE "${GODOT_CUSTOM_API_FILE}")
 endif()
 
+set(FLOAT_PRECISION "single" CACHE STRING "")
+if ("${FLOAT_PRECISION}" STREQUAL "double")
+	add_definitions(-DREAL_T_IS_DOUBLE)
+endif()
+
 set(GODOT_COMPILE_FLAGS )
 
 if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
 	# using Visual Studio C++
-	set(GODOT_COMPILE_FLAGS "/EHsc") # /GF /MP
+	set(GODOT_COMPILE_FLAGS "/utf-8") # /GF /MP
 
 	if(CMAKE_BUILD_TYPE MATCHES Debug)
 		set(GODOT_COMPILE_FLAGS "${GODOT_COMPILE_FLAGS} /MDd") # /Od /RTC1 /Zi
@@ -98,15 +102,32 @@ if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
 
 	add_definitions(-DNOMINMAX)
 else()  # GCC/Clang
-	set(GODOT_COMPILE_FLAGS "${GODOT_COMPILE_FLAGS} -g")
-
 	if(CMAKE_BUILD_TYPE MATCHES Debug)
-		set(GODOT_COMPILE_FLAGS "${GODOT_COMPILE_FLAGS} -fno-omit-frame-pointer -O0")
+		set(GODOT_COMPILE_FLAGS "${GODOT_COMPILE_FLAGS} -fno-omit-frame-pointer -O0 -g")
 	else()
 		set(GODOT_COMPILE_FLAGS "${GODOT_COMPILE_FLAGS} -O3")
 	endif(CMAKE_BUILD_TYPE MATCHES Debug)
 endif()
 
+# Disable exception handling. Godot doesn't use exceptions anywhere, and this
+# saves around 20% of binary size and very significant build time (GH-80513).
+option(GODOT_DISABLE_EXCEPTIONS ON "Force disabling exception handling code")
+if (GODOT_DISABLE_EXCEPTIONS)
+	if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
+		set(GODOT_COMPILE_FLAGS "${GODOT_COMPILE_FLAGS} -D_HAS_EXCEPTIONS=0")
+	else()
+		set(GODOT_COMPILE_FLAGS "${GODOT_COMPILE_FLAGS} -fno-exceptions")
+	endif()
+else()
+	if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
+		set(GODOT_COMPILE_FLAGS "${GODOT_COMPILE_FLAGS} /EHsc")
+	endif()
+endif()
+
+if (GODOT_ENABLE_HOT_RELOAD)
+    set(GODOT_COMPILE_FLAGS "${GODOT_COMPILE_FLAGS} -D HOT_RELOAD_ENABLED")
+endif()
+
 # Generate source from the bindings file
 find_package(Python3 3.4 REQUIRED) # pathlib should be present
 if(GENERATE_TEMPLATE_GET_NODE)
@@ -118,6 +139,7 @@ endif()
 execute_process(COMMAND "${Python3_EXECUTABLE}" "-c" "import binding_generator; binding_generator.print_file_list(\"${GODOT_GDEXTENSION_API_FILE}\", \"${CMAKE_CURRENT_BINARY_DIR}\", headers=True, sources=True)"
 	WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
 	OUTPUT_VARIABLE GENERATED_FILES_LIST
+	OUTPUT_STRIP_TRAILING_WHITESPACE
 )
 
 add_custom_command(OUTPUT ${GENERATED_FILES_LIST}
@@ -143,12 +165,6 @@ add_library(godot::cpp ALIAS ${PROJECT_NAME})
 
 include(GodotCompilerWarnings)
 
-# Treat warnings as errors if we are building ourself
-if(GODOT_CPP_BUILDING_SELF)
-    unset( GODOT_CPP_WARNING_AS_ERROR CACHE )
-    set_warning_as_error()
-endif()
-
 target_compile_features(${PROJECT_NAME}
 	PRIVATE
 		cxx_std_17

README.md

@@ -1,9 +1,17 @@
 # godot-cpp
 
-> **Warning**
+> [!WARNING]
 >
-> This repository's `master` branch is only usable with Godot's ([GDExtension](https://godotengine.org/article/introducing-gd-extensions))
-> API (Godot 4.0 and later).
+> This repository's `master` branch is only usable with
+> [GDExtension](https://godotengine.org/article/introducing-gd-extensions)
+> from Godot's `master` branch.
+>
+> For users of stable branches, switch to the branch matching your target Godot version:
+> - [`4.2`](https://github.com/godotengine/godot-cpp/tree/4.2)
+> - [`4.1`](https://github.com/godotengine/godot-cpp/tree/4.1)
+> - [`4.0`](https://github.com/godotengine/godot-cpp/tree/4.0)
+>
+> Or check out the Git tag matching your Godot version (e.g. `godot-4.1.1-stable`).
 >
 > For GDNative users (Godot 3.x), switch to the [`3.x`](https://github.com/godotengine/godot-cpp/tree/3.x)
 > or the [`3.5`](https://github.com/godotengine/godot-cpp/tree/3.5) branch.
@@ -14,7 +22,7 @@ This repository contains the  *C++ bindings* for the [**Godot Engine**](https://
 - [**Compatibility**](#compatibility)
 - [**Contributing**](#contributing)
 - [**Getting started**](#getting-started)
-- [**Included example**](#included-example)
+- [**Examples and templates**](#examples-and-templates)
 
 ## Versioning
 
@@ -41,17 +49,20 @@ Godot version.**
 
 ## Compatibility
 
-**Warning:** The GDExtension API is brand new in Godot 4.0, and is still
+> [!WARNING]
+>
+> The GDExtension API is brand new in Godot 4.0, and is still
 considered in **beta** stage, despite Godot 4.0 itself being released.
-
-This applies to both the GDExtension interface header, the API JSON, and this
+>
+> This applies to both the GDExtension interface header, the API JSON, and this
 first-party `godot-cpp` extension.
-
-Some compatibility breakage is to be expected as GDExtension and `godot-cpp`
-get more used, documented, and critical issues get resolved. See the
-[issue tracker](https://github.com/godotengine/godot/issues) for a list of known
-issues, and be sure to provide feedback on issues and PRs which affect your use
-of this extension.
+>
+> Some compatibility breakage is to be expected as GDExtension and `godot-cpp`
+> get more used, documented, and critical issues get resolved. See the
+> [Godot issue tracker](https://github.com/godotengine/godot/issues?q=is%3Aissue+is%3Aopen+label%3Atopic%3Agdextension)
+> and the [godot-cpp issue tracker](https://github.com/godotengine/godot-cpp/issues)
+> for a list of known issues, and be sure to provide feedback on issues and PRs
+> which affect your use of this extension.
 
 ## Contributing
 
@@ -65,7 +76,10 @@ so formatting is done before your changes are submitted.
 
 ## Getting started
 
-It's a bit similar to what it was for 3.x but also a bit different.
+You need the same C++ pre-requisites installed that are required for the `godot` repository. Follow the [official build instructions for your target platform](https://docs.godotengine.org/en/latest/contributing/development/compiling/index.html#building-for-target-platforms).
+
+Getting started with GDExtensions is a bit similar to what it was for 3.x but also a bit different.
+
 This new approach is much more akin to how core Godot modules are structured.
 
 Compiling this repository generates a static library to be linked with your shared lib,
@@ -73,21 +87,22 @@ just like before.
 
 To use the shared lib in your Godot project you'll need a `.gdextension`
 file, which replaces what was the `.gdnlib` before.
-Follow [the example](test/demo/example.gdextension):
+See [example.gdextension](test/project/example.gdextension) used in the test project:
 
 ```ini
 [configuration]
 
 entry_symbol = "example_library_init"
+compatibility_minimum = "4.1"
 
 [libraries]
 
-macos.debug = "bin/libgdexample.macos.debug.framework"
-macos.release = "bin/libgdexample.macos.release.framework"
-windows.debug.x86_64 = "bin/libgdexample.windows.debug.x86_64.dll"
-windows.release.x86_64 = "bin/libgdexample.windows.release.x86_64.dll"
-linux.debug.x86_64 = "bin/libgdexample.linux.debug.x86_64.so"
-linux.release.x86_64 = "bin/libgdexample.linux.release.x86_64.so"
+macos.debug = "res://bin/libgdexample.macos.debug.framework"
+macos.release = "res://bin/libgdexample.macos.release.framework"
+windows.debug.x86_64 = "res://bin/libgdexample.windows.debug.x86_64.dll"
+windows.release.x86_64 = "res://bin/libgdexample.windows.release.x86_64.dll"
+linux.debug.x86_64 = "res://bin/libgdexample.linux.debug.x86_64.so"
+linux.release.x86_64 = "res://bin/libgdexample.linux.release.x86_64.so"
 # Repeat for other architectures to support arm64, rv64, etc.
 ```
 
@@ -99,8 +114,8 @@ extern "C" {
 
 // Initialization.
 
-GDExtensionBool GDE_EXPORT example_library_init(const GDExtensionInterface *p_interface, GDExtensionClassLibraryPtr p_library, GDExtensionInitialization *r_initialization) {
-	godot::GDExtensionBinding::InitObject init_obj(p_interface, p_library, r_initialization);
+GDExtensionBool GDE_EXPORT example_library_init(GDExtensionInterfaceGetProcAddress p_get_proc_address, GDExtensionClassLibraryPtr p_library, GDExtensionInitialization *r_initialization) {
+	godot::GDExtensionBinding::InitObject init_obj(p_get_proc_address, p_library, r_initialization);
 
 	init_obj.register_initializer(initialize_example_module);
 	init_obj.register_terminator(uninitialize_example_module);
@@ -119,12 +134,16 @@ void initialize_example_module(ModuleInitializationLevel p_level) {
 	if (p_level != MODULE_INITIALIZATION_LEVEL_SCENE) {
 		return;
 	}
-	ClassDB::register_class<Example>();
+	GDREGISTER_CLASS(Example);
 }
 ```
 
 Any node and resource you register will be available in the corresponding `Create...` dialog. Any class will be available to scripting as well.
 
-## Included example
+## Examples and templates
 
-Check the project in the `test` folder for an example on how to use and register different things.
+See the [godot-cpp-template](https://github.com/godotengine/godot-cpp-template) project for a
+generic reusable template.
+
+Or checkout the code for the [Summator example](https://github.com/paddy-exe/GDExtensionSummator)
+as shown in the [official documentation](https://docs.godotengine.org/en/latest/tutorials/scripting/gdextension/gdextension_cpp_example.html).

SConstruct

@@ -1,80 +1,25 @@
 #!/usr/bin/env python
 
 import os
-import platform
-import sys
-import subprocess
-from binding_generator import scons_generate_bindings, scons_emit_files
-from SCons.Errors import UserError
 
 EnsureSConsVersion(4, 0)
 
 
-def add_sources(sources, dir, extension):
-    for f in os.listdir(dir):
-        if f.endswith("." + extension):
-            sources.append(dir + "/" + f)
+try:
+    Import("env")
+except Exception:
+    # Default tools with no platform defaults to gnu toolchain.
+    # We apply platform specific toolchains via our custom tools.
+    env = Environment(tools=["default"], PLATFORM="")
 
-
-def normalize_path(val):
-    return val if os.path.isabs(val) else os.path.join(env.Dir("#").abspath, val)
-
-
-def validate_api_file(key, val, env):
-    if not os.path.isfile(normalize_path(val)):
-        raise UserError("GDExtension API file ('%s') does not exist: %s" % (key, val))
-
-
-def validate_gdextension_dir(key, val, env):
-    if not os.path.isdir(normalize_path(val)):
-        raise UserError("GDExtension directory ('%s') does not exist: %s" % (key, val))
-
-
-def get_gdextension_dir(env):
-    return normalize_path(env.get("gdextension_dir", env.Dir("gdextension").abspath))
-
-
-def get_api_file(env):
-    return normalize_path(env.get("custom_api_file", os.path.join(get_gdextension_dir(env), "extension_api.json")))
-
-
-# Try to detect the host platform automatically.
-# This is used if no `platform` argument is passed
-if sys.platform.startswith("linux"):
-    default_platform = "linux"
-elif sys.platform == "darwin":
-    default_platform = "macos"
-elif sys.platform == "win32" or sys.platform == "msys":
-    default_platform = "windows"
-elif ARGUMENTS.get("platform", ""):
-    default_platform = ARGUMENTS.get("platform")
-else:
-    raise ValueError("Could not detect platform automatically, please specify with platform=<platform>")
-
-# Default tools with no platform defaults to gnu toolchain.
-# We apply platform specific toolchains via our custom tools.
-env = Environment(tools=["default"], PLATFORM="")
-
-# Default num_jobs to local cpu count if not user specified.
-# SCons has a peculiarity where user-specified options won't be overridden
-# by SetOption, so we can rely on this to know if we should use our default.
-initial_num_jobs = env.GetOption("num_jobs")
-altered_num_jobs = initial_num_jobs + 1
-env.SetOption("num_jobs", altered_num_jobs)
-if env.GetOption("num_jobs") == altered_num_jobs:
-    cpu_count = os.cpu_count()
-    if cpu_count is None:
-        print("Couldn't auto-detect CPU count to configure build parallelism. Specify it with the -j argument.")
-    else:
-        safer_cpu_count = cpu_count if cpu_count <= 4 else cpu_count - 1
-        print(
-            "Auto-detected %d CPU cores available for build parallelism. Using %d cores by default. You can override it with the -j argument."
-            % (cpu_count, safer_cpu_count)
-        )
-        env.SetOption("num_jobs", safer_cpu_count)
+env.PrependENVPath("PATH", os.getenv("PATH"))
 
 # Custom options and profile flags.
 customs = ["custom.py"]
+try:
+    customs += Import("customs")
+except Exception:
+    pass
 profile = ARGUMENTS.get("profile", "")
 if profile:
     if os.path.isfile(profile):
@@ -82,113 +27,12 @@ if profile:
     elif os.path.isfile(profile + ".py"):
         customs.append(profile + ".py")
 opts = Variables(customs, ARGUMENTS)
-
-platforms = ("linux", "macos", "windows", "android", "ios", "javascript")
-opts.Add(
-    EnumVariable(
-        "platform",
-        "Target platform",
-        default_platform,
-        allowed_values=platforms,
-        ignorecase=2,
-    )
-)
-
-# Editor and template_debug are compatible (i.e. you can use the same binary for Godot editor builds and Godot debug templates).
-# Godot release templates are only compatible with "template_release" builds.
-# For this reason, we default to template_debug builds, unlike Godot which defaults to editor builds.
-opts.Add(
-    EnumVariable("target", "Compilation target", "template_debug", ("editor", "template_release", "template_debug"))
-)
-opts.Add(
-    PathVariable(
-        "gdextension_dir",
-        "Path to a custom directory containing GDExtension interface header and API JSON file",
-        None,
-        validate_gdextension_dir,
-    )
-)
-opts.Add(
-    PathVariable(
-        "custom_api_file",
-        "Path to a custom GDExtension API JSON file (takes precedence over `gdextension_dir`)",
-        None,
-        validate_api_file,
-    )
-)
-opts.Add(
-    BoolVariable("generate_bindings", "Force GDExtension API bindings generation. Auto-detected by default.", False)
-)
-opts.Add(BoolVariable("generate_template_get_node", "Generate a template version of the Node class's get_node.", True))
-
-opts.Add(BoolVariable("build_library", "Build the godot-cpp library.", True))
-opts.Add(EnumVariable("precision", "Set the floating-point precision level", "single", ("single", "double")))
-
-# Add platform options
-tools = {}
-for pl in platforms:
-    tool = Tool(pl, toolpath=["tools"])
-    if hasattr(tool, "options"):
-        tool.options(opts)
-    tools[pl] = tool
-
-# CPU architecture options.
-architecture_array = ["", "universal", "x86_32", "x86_64", "arm32", "arm64", "rv64", "ppc32", "ppc64", "wasm32"]
-architecture_aliases = {
-    "x64": "x86_64",
-    "amd64": "x86_64",
-    "armv7": "arm32",
-    "armv8": "arm64",
-    "arm64v8": "arm64",
-    "aarch64": "arm64",
-    "rv": "rv64",
-    "riscv": "rv64",
-    "riscv64": "rv64",
-    "ppcle": "ppc32",
-    "ppc": "ppc32",
-    "ppc64le": "ppc64",
-}
-opts.Add(EnumVariable("arch", "CPU architecture", "", architecture_array, architecture_aliases))
-
-# Targets flags tool (optimizations, debug symbols)
-target_tool = Tool("targets", toolpath=["tools"])
-target_tool.options(opts)
-
+cpp_tool = Tool("godotcpp", toolpath=["tools"])
+cpp_tool.options(opts, env)
 opts.Update(env)
+
 Help(opts.GenerateHelpText(env))
 
-# Process CPU architecture argument.
-if env["arch"] == "":
-    # No architecture specified. Default to arm64 if building for Android,
-    # universal if building for macOS or iOS, wasm32 if building for web,
-    # otherwise default to the host architecture.
-    if env["platform"] in ["macos", "ios"]:
-        env["arch"] = "universal"
-    elif env["platform"] == "android":
-        env["arch"] = "arm64"
-    elif env["platform"] == "javascript":
-        env["arch"] = "wasm32"
-    else:
-        host_machine = platform.machine().lower()
-        if host_machine in architecture_array:
-            env["arch"] = host_machine
-        elif host_machine in architecture_aliases.keys():
-            env["arch"] = architecture_aliases[host_machine]
-        elif "86" in host_machine:
-            # Catches x86, i386, i486, i586, i686, etc.
-            env["arch"] = "x86_32"
-        else:
-            print("Unsupported CPU architecture: " + host_machine)
-            Exit()
-
-tool = Tool(env["platform"], toolpath=["tools"])
-
-if tool is None or not tool.exists(env):
-    raise ValueError("Required toolchain not found for platform " + env["platform"])
-
-tool.generate(env)
-target_tool.generate(env)
-
 # Detect and print a warning listing unknown SCons variables to ease troubleshooting.
 unknown = opts.UnknownVariables()
 if unknown:
@@ -196,66 +40,12 @@ if unknown:
     for item in unknown.items():
         print("    " + item[0] + "=" + item[1])
 
-print("Building for architecture " + env["arch"] + " on platform " + env["platform"])
-
-# Require C++17
-if env.get("is_msvc", False):
-    env.Append(CXXFLAGS=["/std:c++17"])
-else:
-    env.Append(CXXFLAGS=["-std=c++17"])
-
-if env["precision"] == "double":
-    env.Append(CPPDEFINES=["REAL_T_IS_DOUBLE"])
-
-# Generate bindings
-env.Append(BUILDERS={"GenerateBindings": Builder(action=scons_generate_bindings, emitter=scons_emit_files)})
-
-bindings = env.GenerateBindings(
-    env.Dir("."),
-    [get_api_file(env), os.path.join(get_gdextension_dir(env), "gdextension_interface.h"), "binding_generator.py"],
-)
-
 scons_cache_path = os.environ.get("SCONS_CACHE")
 if scons_cache_path is not None:
     CacheDir(scons_cache_path)
     Decider("MD5")
 
-# Forces bindings regeneration.
-if env["generate_bindings"]:
-    AlwaysBuild(bindings)
-    NoCache(bindings)
+cpp_tool.generate(env)
+library = env.GodotCPP()
 
-# Includes
-env.Append(CPPPATH=[[env.Dir(d) for d in [get_gdextension_dir(env), "include", os.path.join("gen", "include")]]])
-
-# Sources to compile
-sources = []
-add_sources(sources, "src", "cpp")
-add_sources(sources, "src/classes", "cpp")
-add_sources(sources, "src/core", "cpp")
-add_sources(sources, "src/variant", "cpp")
-sources.extend([f for f in bindings if str(f).endswith(".cpp")])
-
-suffix = ".{}.{}".format(env["platform"], env["target"])
-if env.dev_build:
-    suffix += ".dev"
-if env["precision"] == "double":
-    suffix += ".double"
-suffix += "." + env["arch"]
-if env["ios_simulator"]:
-    suffix += ".simulator"
-
-# Expose it when included from another project
-env["suffix"] = suffix
-
-library = None
-env["OBJSUFFIX"] = suffix + env["OBJSUFFIX"]
-library_name = "libgodot-cpp{}{}".format(suffix, env["LIBSUFFIX"])
-
-if env["build_library"]:
-    library = env.StaticLibrary(target=env.File("bin/%s" % library_name), source=sources)
-    Default(library)
-
-env.Append(LIBPATH=[env.Dir("bin")])
-env.Append(LIBS=library_name)
 Return("env")

include/godot_cpp/classes/editor_plugin_registration.hpp

@@ -0,0 +1,62 @@
+/**************************************************************************/
+/*  editor_plugin_registration.hpp                                        */
+/**************************************************************************/
+/*                         This file is part of:                          */
+/*                             GODOT ENGINE                               */
+/*                        https://godotengine.org                         */
+/**************************************************************************/
+/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
+/*                                                                        */
+/* Permission is hereby granted, free of charge, to any person obtaining  */
+/* a copy of this software and associated documentation files (the        */
+/* "Software"), to deal in the Software without restriction, including    */
+/* without limitation the rights to use, copy, modify, merge, publish,    */
+/* distribute, sublicense, and/or sell copies of the Software, and to     */
+/* permit persons to whom the Software is furnished to do so, subject to  */
+/* the following conditions:                                              */
+/*                                                                        */
+/* The above copyright notice and this permission notice shall be         */
+/* included in all copies or substantial portions of the Software.        */
+/*                                                                        */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY   */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,   */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE      */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
+/**************************************************************************/
+
+#ifndef GODOT_EDITOR_PLUGIN_REGISTRATION_HPP
+#define GODOT_EDITOR_PLUGIN_REGISTRATION_HPP
+
+#include <godot_cpp/templates/vector.hpp>
+
+namespace godot {
+
+class EditorPlugin;
+class StringName;
+
+class EditorPlugins {
+private:
+	static Vector<StringName> plugin_classes;
+
+public:
+	static void add_plugin_class(const StringName &p_class_name);
+	static void remove_plugin_class(const StringName &p_class_name);
+	static void deinitialize(GDExtensionInitializationLevel p_level);
+
+	template <typename T>
+	static void add_by_type() {
+		add_plugin_class(T::get_class_static());
+	}
+	template <typename T>
+	static void remove_by_type() {
+		remove_plugin_class(T::get_class_static());
+	}
+};
+
+} // namespace godot
+
+#endif // GODOT_EDITOR_PLUGIN_REGISTRATION_HPP

include/godot_cpp/classes/ref.hpp

@@ -45,7 +45,7 @@ namespace godot {
 
 class RefCounted;
 
-template <class T>
+template <typename T>
 class Ref {
 	T *reference = nullptr;
 
@@ -63,7 +63,7 @@ class Ref {
 	}
 
 	void ref_pointer(T *p_ref) {
-		ERR_FAIL_COND(!p_ref);
+		ERR_FAIL_NULL(p_ref);
 
 		if (p_ref->init_ref()) {
 			reference = p_ref;
@@ -88,26 +88,15 @@ public:
 		return reference != p_r.reference;
 	}
 
-	_FORCE_INLINE_ T *operator->() {
+	_FORCE_INLINE_ T *operator*() const {
 		return reference;
 	}
 
-	_FORCE_INLINE_ T *operator*() {
+	_FORCE_INLINE_ T *operator->() const {
 		return reference;
 	}
 
-	_FORCE_INLINE_ const T *operator->() const {
-		return reference;
-	}
-
-	_FORCE_INLINE_ const T *ptr() const {
-		return reference;
-	}
-	_FORCE_INLINE_ T *ptr() {
-		return reference;
-	}
-
-	_FORCE_INLINE_ const T *operator*() const {
+	_FORCE_INLINE_ T *ptr() const {
 		return reference;
 	}
 
@@ -119,7 +108,7 @@ public:
 		ref(p_from);
 	}
 
-	template <class T_Other>
+	template <typename T_Other>
 	void operator=(const Ref<T_Other> &p_from) {
 		RefCounted *refb = const_cast<RefCounted *>(static_cast<const RefCounted *>(p_from.ptr()));
 		if (!refb) {
@@ -155,7 +144,7 @@ public:
 		}
 	}
 
-	template <class T_Other>
+	template <typename T_Other>
 	void reference_ptr(T_Other *p_ptr) {
 		if (reference == p_ptr) {
 			return;
@@ -172,7 +161,7 @@ public:
 		ref(p_from);
 	}
 
-	template <class T_Other>
+	template <typename T_Other>
 	Ref(const Ref<T_Other> &p_from) {
 		RefCounted *refb = const_cast<RefCounted *>(static_cast<const RefCounted *>(p_from.ptr()));
 		if (!refb) {
@@ -230,21 +219,19 @@ public:
 
 	// Used exclusively in the bindings to recreate the Ref Godot encapsulates in return values,
 	// without adding to the refcount.
-	inline static Ref<T> ___internal_constructor(Object *obj) {
+	inline static Ref<T> _gde_internal_constructor(Object *obj) {
 		Ref<T> r;
 		r.reference = (T *)obj;
 		return r;
 	}
 };
 
-template <class T>
+template <typename T>
 struct PtrToArg<Ref<T>> {
 	_FORCE_INLINE_ static Ref<T> convert(const void *p_ptr) {
 		GDExtensionRefPtr ref = (GDExtensionRefPtr)p_ptr;
-		ERR_FAIL_NULL_V(ref, Ref<T>());
-
-		T *obj = reinterpret_cast<T *>(godot::internal::gde_interface->object_get_instance_binding(godot::internal::gde_interface->ref_get_object(ref), godot::internal::token, &T::___binding_callbacks));
-		return Ref<T>(obj);
+		ERR_FAIL_NULL_V(p_ptr, Ref<T>());
+		return Ref<T>(reinterpret_cast<T *>(godot::internal::get_object_instance_binding(godot::internal::gdextension_interface_ref_get_object(ref))));
 	}
 
 	typedef Ref<T> EncodeT;
@@ -256,34 +243,36 @@ struct PtrToArg<Ref<T>> {
 		// This code assumes that p_ptr points to an unset Ref<T> variable on the Godot side
 		// so we only set it if we have an object to set.
 		if (p_val.is_valid()) {
-			godot::internal::gde_interface->ref_set_object(ref, p_val->_owner);
+			godot::internal::gdextension_interface_ref_set_object(ref, p_val->_owner);
 		}
 	}
 };
 
-template <class T>
+template <typename T>
 struct PtrToArg<const Ref<T> &> {
 	typedef Ref<T> EncodeT;
 
 	_FORCE_INLINE_ static Ref<T> convert(const void *p_ptr) {
-		return Ref<T>(reinterpret_cast<T *>(godot::internal::gde_interface->object_get_instance_binding(*reinterpret_cast<GDExtensionObjectPtr *>(const_cast<void *>(p_ptr)), godot::internal::token, &T::___binding_callbacks)));
+		GDExtensionRefPtr ref = const_cast<GDExtensionRefPtr>(p_ptr);
+		ERR_FAIL_NULL_V(p_ptr, Ref<T>());
+		return Ref<T>(reinterpret_cast<T *>(godot::internal::get_object_instance_binding(godot::internal::gdextension_interface_ref_get_object(ref))));
 	}
 };
 
-template <class T>
+template <typename T>
 struct GetTypeInfo<Ref<T>, typename EnableIf<TypeInherits<RefCounted, T>::value>::type> {
-	static const GDExtensionVariantType VARIANT_TYPE = GDEXTENSION_VARIANT_TYPE_OBJECT;
-	static const GDExtensionClassMethodArgumentMetadata METADATA = GDEXTENSION_METHOD_ARGUMENT_METADATA_NONE;
+	static constexpr GDExtensionVariantType VARIANT_TYPE = GDEXTENSION_VARIANT_TYPE_OBJECT;
+	static constexpr GDExtensionClassMethodArgumentMetadata METADATA = GDEXTENSION_METHOD_ARGUMENT_METADATA_NONE;
 
 	static inline PropertyInfo get_class_info() {
 		return make_property_info(Variant::Type::OBJECT, "", PROPERTY_HINT_RESOURCE_TYPE, T::get_class_static());
 	}
 };
 
-template <class T>
+template <typename T>
 struct GetTypeInfo<const Ref<T> &, typename EnableIf<TypeInherits<RefCounted, T>::value>::type> {
-	static const GDExtensionVariantType VARIANT_TYPE = GDEXTENSION_VARIANT_TYPE_OBJECT;
-	static const GDExtensionClassMethodArgumentMetadata METADATA = GDEXTENSION_METHOD_ARGUMENT_METADATA_NONE;
+	static constexpr GDExtensionVariantType VARIANT_TYPE = GDEXTENSION_VARIANT_TYPE_OBJECT;
+	static constexpr GDExtensionClassMethodArgumentMetadata METADATA = GDEXTENSION_METHOD_ARGUMENT_METADATA_NONE;
 
 	static inline PropertyInfo get_class_info() {
 		return make_property_info(Variant::Type::OBJECT, "", PROPERTY_HINT_RESOURCE_TYPE, T::get_class_static());

include/godot_cpp/classes/wrapped.hpp

@@ -36,6 +36,7 @@
 #include <godot_cpp/core/property_info.hpp>
 
 #include <godot_cpp/templates/list.hpp>
+#include <godot_cpp/templates/vector.hpp>
 
 #include <godot_cpp/godot.hpp>
 
@@ -45,14 +46,39 @@ class ClassDB;
 
 typedef void GodotObject;
 
+template <typename T, std::enable_if_t<std::is_base_of<::godot::Wrapped, T>::value, bool> = true>
+_ALWAYS_INLINE_ void _pre_initialize();
+
 // Base for all engine classes, to contain the pointer to the engine instance.
 class Wrapped {
 	friend class GDExtensionBinding;
+	friend class ClassDB;
 	friend void postinitialize_handler(Wrapped *);
 
+	template <typename T, std::enable_if_t<std::is_base_of<::godot::Wrapped, T>::value, bool>>
+	friend _ALWAYS_INLINE_ void _pre_initialize();
+
+	thread_local static const StringName *_constructing_extension_class_name;
+	thread_local static const GDExtensionInstanceBindingCallbacks *_constructing_class_binding_callbacks;
+
+	template <typename T>
+	_ALWAYS_INLINE_ static void _set_construct_info() {
+		_constructing_extension_class_name = T::_get_extension_class_name();
+		_constructing_class_binding_callbacks = &T::_gde_binding_callbacks;
+	}
+
 protected:
-	virtual const StringName *_get_extension_class_name() const; // This is needed to retrieve the class name before the godot object has its _extension and _extension_instance members assigned.
-	virtual const GDExtensionInstanceBindingCallbacks *_get_bindings_callbacks() const = 0;
+	virtual bool _is_extension_class() const { return false; }
+	static const StringName *_get_extension_class_name(); // This is needed to retrieve the class name before the godot object has its _extension and _extension_instance members assigned.
+
+#ifdef HOT_RELOAD_ENABLED
+	struct RecreateInstance {
+		GDExtensionClassInstancePtr wrapper;
+		GDExtensionObjectPtr owner;
+		RecreateInstance *next;
+	};
+	inline static RecreateInstance *recreate_instance = nullptr;
+#endif
 
 	void _notification(int p_what) {}
 	bool _set(const StringName &p_name, const Variant &p_property) { return false; }
@@ -60,30 +86,33 @@ protected:
 	void _get_property_list(List<PropertyInfo> *p_list) const {}
 	bool _property_can_revert(const StringName &p_name) const { return false; }
 	bool _property_get_revert(const StringName &p_name, Variant &r_property) const { return false; }
+	void _validate_property(PropertyInfo &p_property) const {}
 	String _to_string() const { return "[" + String(get_class_static()) + ":" + itos(get_instance_id()) + "]"; }
 
-	static void notification_bind(GDExtensionClassInstancePtr p_instance, int32_t p_what) {}
+	static void notification_bind(GDExtensionClassInstancePtr p_instance, int32_t p_what, GDExtensionBool p_reversed) {}
 	static GDExtensionBool set_bind(GDExtensionClassInstancePtr p_instance, GDExtensionConstStringNamePtr p_name, GDExtensionConstVariantPtr p_value) { return false; }
 	static GDExtensionBool get_bind(GDExtensionClassInstancePtr p_instance, GDExtensionConstStringNamePtr p_name, GDExtensionVariantPtr r_ret) { return false; }
 	static const GDExtensionPropertyInfo *get_property_list_bind(GDExtensionClassInstancePtr p_instance, uint32_t *r_count) { return nullptr; }
-	static void free_property_list_bind(GDExtensionClassInstancePtr p_instance, const GDExtensionPropertyInfo *p_list) {}
+	static void free_property_list_bind(GDExtensionClassInstancePtr p_instance, const GDExtensionPropertyInfo *p_list, uint32_t p_count) {}
 	static GDExtensionBool property_can_revert_bind(GDExtensionClassInstancePtr p_instance, GDExtensionConstStringNamePtr p_name) { return false; }
 	static GDExtensionBool property_get_revert_bind(GDExtensionClassInstancePtr p_instance, GDExtensionConstStringNamePtr p_name, GDExtensionVariantPtr r_ret) { return false; }
+	static GDExtensionBool validate_property_bind(GDExtensionClassInstancePtr p_instance, GDExtensionPropertyInfo *p_property) { return false; }
 	static void to_string_bind(GDExtensionClassInstancePtr p_instance, GDExtensionBool *r_is_valid, GDExtensionStringPtr r_out) {}
 
+	// The only reason this has to be held here, is when we return results of `_get_property_list` to Godot, we pass
+	// pointers to strings in this list. They have to remain valid to pass the bridge, until the list is freed by Godot...
 	::godot::List<::godot::PropertyInfo> plist_owned;
-	GDExtensionPropertyInfo *plist = nullptr;
-	uint32_t plist_size = 0;
 
 	void _postinitialize();
+	virtual void _notificationv(int32_t p_what, bool p_reversed = false) {}
 
 	Wrapped(const StringName p_godot_class);
 	Wrapped(GodotObject *p_godot_object);
 	virtual ~Wrapped() {}
 
 public:
-	static StringName &get_class_static() {
-		static StringName string_name = StringName("Wrapped");
+	static const StringName &get_class_static() {
+		static const StringName string_name = StringName("Wrapped");
 		return string_name;
 	}
 
@@ -95,21 +124,71 @@ public:
 	GodotObject *_owner = nullptr;
 };
 
+template <typename T, std::enable_if_t<std::is_base_of<::godot::Wrapped, T>::value, bool>>
+_ALWAYS_INLINE_ void _pre_initialize() {
+	Wrapped::_set_construct_info<T>();
+}
+
+_FORCE_INLINE_ void snarray_add_str(Vector<StringName> &arr) {
+}
+
+_FORCE_INLINE_ void snarray_add_str(Vector<StringName> &arr, const StringName &p_str) {
+	arr.push_back(p_str);
+}
+
+template <typename... P>
+_FORCE_INLINE_ void snarray_add_str(Vector<StringName> &arr, const StringName &p_str, P... p_args) {
+	arr.push_back(p_str);
+	snarray_add_str(arr, p_args...);
+}
+
+template <typename... P>
+_FORCE_INLINE_ Vector<StringName> snarray(P... p_args) {
+	Vector<StringName> arr;
+	snarray_add_str(arr, p_args...);
+	return arr;
+}
+
+namespace internal {
+
+GDExtensionPropertyInfo *create_c_property_list(const ::godot::List<::godot::PropertyInfo> &plist_cpp, uint32_t *r_size);
+void free_c_property_list(GDExtensionPropertyInfo *plist);
+
+typedef void (*EngineClassRegistrationCallback)();
+void add_engine_class_registration_callback(EngineClassRegistrationCallback p_callback);
+void register_engine_class(const StringName &p_name, const GDExtensionInstanceBindingCallbacks *p_callbacks);
+void register_engine_classes();
+
+template <typename T>
+struct EngineClassRegistration {
+	EngineClassRegistration() {
+		add_engine_class_registration_callback(&EngineClassRegistration<T>::callback);
+	}
+
+	static void callback() {
+		register_engine_class(T::get_class_static(), &T::_gde_binding_callbacks);
+	}
+};
+
+} // namespace internal
+
 } // namespace godot
 
-#define GDCLASS(m_class, m_inherits)                                                                                                                                                   \
+// Use this on top of your own classes.
+// Note: the trail of `***` is to keep sane diffs in PRs, because clang-format otherwise moves every `\` which makes
+// every line of the macro different
+#define GDCLASS(m_class, m_inherits) /***********************************************************************************************************************************************/ \
 private:                                                                                                                                                                               \
-	void operator=(const m_class &p_rval) {}                                                                                                                                           \
+	void operator=(const m_class & /*p_rval*/) {}                                                                                                                                      \
 	friend class ::godot::ClassDB;                                                                                                                                                     \
+	friend class ::godot::Wrapped;                                                                                                                                                     \
                                                                                                                                                                                        \
 protected:                                                                                                                                                                             \
-	virtual const ::godot::StringName *_get_extension_class_name() const override {                                                                                                    \
-		static ::godot::StringName string_name = get_class_static();                                                                                                                   \
-		return &string_name;                                                                                                                                                           \
-	}                                                                                                                                                                                  \
+	virtual bool _is_extension_class() const override { return true; }                                                                                                                 \
                                                                                                                                                                                        \
-	virtual const GDExtensionInstanceBindingCallbacks *_get_bindings_callbacks() const override {                                                                                      \
-		return &___binding_callbacks;                                                                                                                                                  \
+	static const ::godot::StringName *_get_extension_class_name() {                                                                                                                    \
+		const ::godot::StringName &string_name = get_class_static();                                                                                                                   \
+		return &string_name;                                                                                                                                                           \
 	}                                                                                                                                                                                  \
                                                                                                                                                                                        \
 	static void (*_get_bind_methods())() {                                                                                                                                             \
@@ -132,24 +211,31 @@ protected:
 		return (void(::godot::Wrapped::*)(::godot::List<::godot::PropertyInfo> * p_list) const) & m_class::_get_property_list;                                                         \
 	}                                                                                                                                                                                  \
                                                                                                                                                                                        \
-	static bool (::godot::Wrapped::*_get_property_can_revert())(const ::godot::StringName &p_name) {                                                                                   \
-		return (bool(::godot::Wrapped::*)(const ::godot::StringName &p_name)) & m_class::_property_can_revert;                                                                         \
+	static bool (::godot::Wrapped::*_get_property_can_revert())(const ::godot::StringName &p_name) const {                                                                             \
+		return (bool(::godot::Wrapped::*)(const ::godot::StringName &p_name) const) & m_class::_property_can_revert;                                                                   \
 	}                                                                                                                                                                                  \
                                                                                                                                                                                        \
-	static bool (::godot::Wrapped::*_get_property_get_revert())(const ::godot::StringName &p_name, ::godot::Variant &) {                                                               \
-		return (bool(::godot::Wrapped::*)(const ::godot::StringName &p_name, ::godot::Variant &)) & m_class::_property_get_revert;                                                     \
+	static bool (::godot::Wrapped::*_get_property_get_revert())(const ::godot::StringName &p_name, ::godot::Variant &) const {                                                         \
+		return (bool(::godot::Wrapped::*)(const ::godot::StringName &p_name, ::godot::Variant &) const) & m_class::_property_get_revert;                                               \
 	}                                                                                                                                                                                  \
                                                                                                                                                                                        \
-	static ::godot::String (::godot::Wrapped::*_get_to_string())() {                                                                                                                   \
-		return (::godot::String(::godot::Wrapped::*)()) & m_class::_to_string;                                                                                                         \
+	static void (::godot::Wrapped::*_get_validate_property())(::godot::PropertyInfo & p_property) const {                                                                              \
+		return (void(::godot::Wrapped::*)(::godot::PropertyInfo & p_property) const) & m_class::_validate_property;                                                                    \
 	}                                                                                                                                                                                  \
                                                                                                                                                                                        \
-	template <class T, class B>                                                                                                                                                        \
+	static ::godot::String (::godot::Wrapped::*_get_to_string())() const {                                                                                                             \
+		return (::godot::String(::godot::Wrapped::*)() const) & m_class::_to_string;                                                                                                   \
+	}                                                                                                                                                                                  \
+                                                                                                                                                                                       \
+	template <typename T, typename B>                                                                                                                                                  \
 	static void register_virtuals() {                                                                                                                                                  \
 		m_inherits::register_virtuals<T, B>();                                                                                                                                         \
 	}                                                                                                                                                                                  \
                                                                                                                                                                                        \
 public:                                                                                                                                                                                \
+	typedef m_class self_type;                                                                                                                                                         \
+	typedef m_inherits parent_type;                                                                                                                                                    \
+                                                                                                                                                                                       \
 	static void initialize_class() {                                                                                                                                                   \
 		static bool initialized = false;                                                                                                                                               \
 		if (initialized) {                                                                                                                                                             \
@@ -163,86 +249,78 @@ public:
 		initialized = true;                                                                                                                                                            \
 	}                                                                                                                                                                                  \
                                                                                                                                                                                        \
-	static ::godot::StringName &get_class_static() {                                                                                                                                   \
-		static ::godot::StringName string_name = ::godot::StringName(#m_class);                                                                                                        \
+	static const ::godot::StringName &get_class_static() {                                                                                                                             \
+		static const ::godot::StringName string_name = ::godot::StringName(#m_class);                                                                                                  \
 		return string_name;                                                                                                                                                            \
 	}                                                                                                                                                                                  \
                                                                                                                                                                                        \
-	static ::godot::StringName &get_parent_class_static() {                                                                                                                            \
+	static const ::godot::StringName &get_parent_class_static() {                                                                                                                      \
 		return m_inherits::get_class_static();                                                                                                                                         \
 	}                                                                                                                                                                                  \
                                                                                                                                                                                        \
-	static GDExtensionObjectPtr create(void *data) {                                                                                                                                   \
-		m_class *new_object = memnew(m_class);                                                                                                                                         \
-		return new_object->_owner;                                                                                                                                                     \
-	}                                                                                                                                                                                  \
-                                                                                                                                                                                       \
-	static void notification_bind(GDExtensionClassInstancePtr p_instance, int32_t p_what) {                                                                                            \
+	static void notification_bind(GDExtensionClassInstancePtr p_instance, int32_t p_what, GDExtensionBool p_reversed) {                                                                \
 		if (p_instance && m_class::_get_notification()) {                                                                                                                              \
+			if (!p_reversed) {                                                                                                                                                         \
+				m_inherits::notification_bind(p_instance, p_what, p_reversed);                                                                                                         \
+			}                                                                                                                                                                          \
 			if (m_class::_get_notification() != m_inherits::_get_notification()) {                                                                                                     \
 				m_class *cls = reinterpret_cast<m_class *>(p_instance);                                                                                                                \
-				return cls->_notification(p_what);                                                                                                                                     \
+				cls->_notification(p_what);                                                                                                                                            \
+			}                                                                                                                                                                          \
+			if (p_reversed) {                                                                                                                                                          \
+				m_inherits::notification_bind(p_instance, p_what, p_reversed);                                                                                                         \
 			}                                                                                                                                                                          \
-			m_inherits::notification_bind(p_instance, p_what);                                                                                                                         \
 		}                                                                                                                                                                              \
 	}                                                                                                                                                                                  \
                                                                                                                                                                                        \
 	static GDExtensionBool set_bind(GDExtensionClassInstancePtr p_instance, GDExtensionConstStringNamePtr p_name, GDExtensionConstVariantPtr p_value) {                                \
-		if (p_instance && m_class::_get_set()) {                                                                                                                                       \
+		if (p_instance) {                                                                                                                                                              \
+			if (m_inherits::set_bind(p_instance, p_name, p_value)) {                                                                                                                   \
+				return true;                                                                                                                                                           \
+			}                                                                                                                                                                          \
 			if (m_class::_get_set() != m_inherits::_get_set()) {                                                                                                                       \
 				m_class *cls = reinterpret_cast<m_class *>(p_instance);                                                                                                                \
 				return cls->_set(*reinterpret_cast<const ::godot::StringName *>(p_name), *reinterpret_cast<const ::godot::Variant *>(p_value));                                        \
 			}                                                                                                                                                                          \
-			return m_inherits::set_bind(p_instance, p_name, p_value);                                                                                                                  \
 		}                                                                                                                                                                              \
 		return false;                                                                                                                                                                  \
 	}                                                                                                                                                                                  \
                                                                                                                                                                                        \
 	static GDExtensionBool get_bind(GDExtensionClassInstancePtr p_instance, GDExtensionConstStringNamePtr p_name, GDExtensionVariantPtr r_ret) {                                       \
-		if (p_instance && m_class::_get_get()) {                                                                                                                                       \
+		if (p_instance) {                                                                                                                                                              \
+			if (m_inherits::get_bind(p_instance, p_name, r_ret)) {                                                                                                                     \
+				return true;                                                                                                                                                           \
+			}                                                                                                                                                                          \
 			if (m_class::_get_get() != m_inherits::_get_get()) {                                                                                                                       \
 				m_class *cls = reinterpret_cast<m_class *>(p_instance);                                                                                                                \
 				return cls->_get(*reinterpret_cast<const ::godot::StringName *>(p_name), *reinterpret_cast<::godot::Variant *>(r_ret));                                                \
 			}                                                                                                                                                                          \
-			return m_inherits::get_bind(p_instance, p_name, r_ret);                                                                                                                    \
 		}                                                                                                                                                                              \
 		return false;                                                                                                                                                                  \
 	}                                                                                                                                                                                  \
                                                                                                                                                                                        \
-	static const GDExtensionPropertyInfo *get_property_list_bind(GDExtensionClassInstancePtr p_instance, uint32_t *r_count) {                                                          \
-		if (p_instance && m_class::_get_get_property_list()) {                                                                                                                         \
-			if (m_class::_get_get_property_list() != m_inherits::_get_get_property_list()) {                                                                                           \
-				m_class *cls = reinterpret_cast<m_class *>(p_instance);                                                                                                                \
-				ERR_FAIL_COND_V_MSG(!cls->plist_owned.is_empty() || cls->plist != nullptr || cls->plist_size != 0, nullptr, "Internal error, property list was not freed by engine!"); \
-				cls->_get_property_list(&cls->plist_owned);                                                                                                                            \
-				cls->plist = reinterpret_cast<GDExtensionPropertyInfo *>(memalloc(sizeof(GDExtensionPropertyInfo) * cls->plist_owned.size()));                                         \
-				cls->plist_size = 0;                                                                                                                                                   \
-				for (const ::godot::PropertyInfo &E : cls->plist_owned) {                                                                                                              \
-					cls->plist[cls->plist_size].type = static_cast<GDExtensionVariantType>(E.type);                                                                                    \
-					cls->plist[cls->plist_size].name = E.name._native_ptr();                                                                                                           \
-					cls->plist[cls->plist_size].hint = E.hint;                                                                                                                         \
-					cls->plist[cls->plist_size].hint_string = E.hint_string._native_ptr();                                                                                             \
-					cls->plist[cls->plist_size].class_name = E.class_name._native_ptr();                                                                                               \
-					cls->plist[cls->plist_size].usage = E.usage;                                                                                                                       \
-					cls->plist_size++;                                                                                                                                                 \
-				}                                                                                                                                                                      \
-				if (r_count)                                                                                                                                                           \
-					*r_count = cls->plist_size;                                                                                                                                        \
-				return cls->plist;                                                                                                                                                     \
-			}                                                                                                                                                                          \
-			return m_inherits::get_property_list_bind(p_instance, r_count);                                                                                                            \
-		}                                                                                                                                                                              \
-		return nullptr;                                                                                                                                                                \
+	static inline bool has_get_property_list() {                                                                                                                                       \
+		return m_class::_get_get_property_list() && m_class::_get_get_property_list() != m_inherits::_get_get_property_list();                                                         \
 	}                                                                                                                                                                                  \
                                                                                                                                                                                        \
-	static void free_property_list_bind(GDExtensionClassInstancePtr p_instance, const GDExtensionPropertyInfo *p_list) {                                                               \
+	static const GDExtensionPropertyInfo *get_property_list_bind(GDExtensionClassInstancePtr p_instance, uint32_t *r_count) {                                                          \
+		if (!p_instance) {                                                                                                                                                             \
+			if (r_count)                                                                                                                                                               \
+				*r_count = 0;                                                                                                                                                          \
+			return nullptr;                                                                                                                                                            \
+		}                                                                                                                                                                              \
+		m_class *cls = reinterpret_cast<m_class *>(p_instance);                                                                                                                        \
+		::godot::List<::godot::PropertyInfo> &plist_cpp = cls->plist_owned;                                                                                                            \
+		ERR_FAIL_COND_V_MSG(!plist_cpp.is_empty(), nullptr, "Internal error, property list was not freed by engine!");                                                                 \
+		cls->_get_property_list(&plist_cpp);                                                                                                                                           \
+		return ::godot::internal::create_c_property_list(plist_cpp, r_count);                                                                                                          \
+	}                                                                                                                                                                                  \
+                                                                                                                                                                                       \
+	static void free_property_list_bind(GDExtensionClassInstancePtr p_instance, const GDExtensionPropertyInfo *p_list, uint32_t /*p_count*/) {                                         \
 		if (p_instance) {                                                                                                                                                              \
 			m_class *cls = reinterpret_cast<m_class *>(p_instance);                                                                                                                    \
-			ERR_FAIL_COND_MSG(cls->plist == nullptr, "Internal error, property list double free!");                                                                                    \
-			memfree(cls->plist);                                                                                                                                                       \
-			cls->plist = nullptr;                                                                                                                                                      \
-			cls->plist_size = 0;                                                                                                                                                       \
 			cls->plist_owned.clear();                                                                                                                                                  \
+			::godot::internal::free_c_property_list(const_cast<GDExtensionPropertyInfo *>(p_list));                                                                                    \
 		}                                                                                                                                                                              \
 	}                                                                                                                                                                                  \
                                                                                                                                                                                        \
@@ -268,6 +346,21 @@ public:
 		return false;                                                                                                                                                                  \
 	}                                                                                                                                                                                  \
                                                                                                                                                                                        \
+	static GDExtensionBool validate_property_bind(GDExtensionClassInstancePtr p_instance, GDExtensionPropertyInfo *p_property) {                                                       \
+		bool ret = false;                                                                                                                                                              \
+		if (p_instance && m_class::_get_validate_property()) {                                                                                                                         \
+			ret = m_inherits::validate_property_bind(p_instance, p_property);                                                                                                          \
+			if (m_class::_get_validate_property() != m_inherits::_get_validate_property()) {                                                                                           \
+				m_class *cls = reinterpret_cast<m_class *>(p_instance);                                                                                                                \
+				::godot::PropertyInfo info(p_property);                                                                                                                                \
+				cls->_validate_property(info);                                                                                                                                         \
+				info._update(p_property);                                                                                                                                              \
+				return true;                                                                                                                                                           \
+			}                                                                                                                                                                          \
+		}                                                                                                                                                                              \
+		return ret;                                                                                                                                                                    \
+	}                                                                                                                                                                                  \
+                                                                                                                                                                                       \
 	static void to_string_bind(GDExtensionClassInstancePtr p_instance, GDExtensionBool *r_is_valid, GDExtensionStringPtr r_out) {                                                      \
 		if (p_instance && m_class::_get_to_string()) {                                                                                                                                 \
 			if (m_class::_get_to_string() != m_inherits::_get_to_string()) {                                                                                                           \
@@ -280,7 +373,7 @@ public:
 		}                                                                                                                                                                              \
 	}                                                                                                                                                                                  \
                                                                                                                                                                                        \
-	static void free(void *data, GDExtensionClassInstancePtr ptr) {                                                                                                                    \
+	static void free(void * /*data*/, GDExtensionClassInstancePtr ptr) {                                                                                                               \
 		if (ptr) {                                                                                                                                                                     \
 			m_class *cls = reinterpret_cast<m_class *>(ptr);                                                                                                                           \
 			cls->~m_class();                                                                                                                                                           \
@@ -288,97 +381,134 @@ public:
 		}                                                                                                                                                                              \
 	}                                                                                                                                                                                  \
                                                                                                                                                                                        \
-	static void *___binding_create_callback(void *p_token, void *p_instance) {                                                                                                         \
+	static void *_gde_binding_create_callback(void * /*p_token*/, void * /*p_instance*/) {                                                                                             \
 		return nullptr;                                                                                                                                                                \
 	}                                                                                                                                                                                  \
                                                                                                                                                                                        \
-	static void ___binding_free_callback(void *p_token, void *p_instance, void *p_binding) {                                                                                           \
+	static void _gde_binding_free_callback(void * /*p_token*/, void * /*p_instance*/, void * /*p_binding*/) {                                                                          \
 	}                                                                                                                                                                                  \
                                                                                                                                                                                        \
-	static GDExtensionBool ___binding_reference_callback(void *p_token, void *p_instance, GDExtensionBool p_reference) {                                                               \
+	static GDExtensionBool _gde_binding_reference_callback(void * /*p_token*/, void * /*p_instance*/, GDExtensionBool /*p_reference*/) {                                               \
 		return true;                                                                                                                                                                   \
 	}                                                                                                                                                                                  \
                                                                                                                                                                                        \
-	static constexpr GDExtensionInstanceBindingCallbacks ___binding_callbacks = {                                                                                                      \
-		___binding_create_callback,                                                                                                                                                    \
-		___binding_free_callback,                                                                                                                                                      \
-		___binding_reference_callback,                                                                                                                                                 \
-	};
+	static constexpr GDExtensionInstanceBindingCallbacks _gde_binding_callbacks = {                                                                                                    \
+		_gde_binding_create_callback,                                                                                                                                                  \
+		_gde_binding_free_callback,                                                                                                                                                    \
+		_gde_binding_reference_callback,                                                                                                                                               \
+	};                                                                                                                                                                                 \
+                                                                                                                                                                                       \
+protected:                                                                                                                                                                             \
+	virtual void _notificationv(int32_t p_what, bool p_reversed = false) override {                                                                                                    \
+		m_class::notification_bind(this, p_what, p_reversed);                                                                                                                          \
+	}                                                                                                                                                                                  \
+                                                                                                                                                                                       \
+private:
 
 // Don't use this for your classes, use GDCLASS() instead.
-#define GDEXTENSION_CLASS(m_class, m_inherits)                                                                           \
-private:                                                                                                                 \
-	void operator=(const m_class &p_rval) {}                                                                             \
-                                                                                                                         \
-protected:                                                                                                               \
-	virtual const GDExtensionInstanceBindingCallbacks *_get_bindings_callbacks() const override {                        \
-		return &___binding_callbacks;                                                                                    \
-	}                                                                                                                    \
-                                                                                                                         \
-	m_class(const char *p_godot_class) : m_inherits(p_godot_class) {}                                                    \
-	m_class(GodotObject *p_godot_object) : m_inherits(p_godot_object) {}                                                 \
-                                                                                                                         \
-	static void (*_get_bind_methods())() {                                                                               \
-		return nullptr;                                                                                                  \
-	}                                                                                                                    \
-                                                                                                                         \
-	static void (Wrapped::*_get_notification())(int) {                                                                   \
-		return nullptr;                                                                                                  \
-	}                                                                                                                    \
-                                                                                                                         \
-	static bool (Wrapped::*_get_set())(const ::godot::StringName &p_name, const Variant &p_property) {                   \
-		return nullptr;                                                                                                  \
-	}                                                                                                                    \
-                                                                                                                         \
-	static bool (Wrapped::*_get_get())(const ::godot::StringName &p_name, Variant &r_ret) const {                        \
-		return nullptr;                                                                                                  \
-	}                                                                                                                    \
-                                                                                                                         \
-	static void (Wrapped::*_get_get_property_list())(List<PropertyInfo> * p_list) const {                                \
-		return nullptr;                                                                                                  \
-	}                                                                                                                    \
-                                                                                                                         \
-	static bool (Wrapped::*_get_property_can_revert())(const ::godot::StringName &p_name) {                              \
-		return nullptr;                                                                                                  \
-	}                                                                                                                    \
-                                                                                                                         \
-	static bool (Wrapped::*_get_property_get_revert())(const ::godot::StringName &p_name, Variant &) {                   \
-		return nullptr;                                                                                                  \
-	}                                                                                                                    \
-                                                                                                                         \
-	static String (Wrapped::*_get_to_string())() {                                                                       \
-		return nullptr;                                                                                                  \
-	}                                                                                                                    \
-                                                                                                                         \
-public:                                                                                                                  \
-	static void initialize_class() {}                                                                                    \
-                                                                                                                         \
-	static ::godot::StringName &get_class_static() {                                                                     \
-		static ::godot::StringName string_name = ::godot::StringName(#m_class);                                          \
-		return string_name;                                                                                              \
-	}                                                                                                                    \
-                                                                                                                         \
-	static ::godot::StringName &get_parent_class_static() {                                                              \
-		return m_inherits::get_class_static();                                                                           \
-	}                                                                                                                    \
-                                                                                                                         \
-	static void *___binding_create_callback(void *p_token, void *p_instance) {                                           \
-		/* Do not call memnew here, we don't want the postinitializer to be called */                                    \
-		return new ("") m_class((GodotObject *)p_instance);                                                              \
-	}                                                                                                                    \
-	static void ___binding_free_callback(void *p_token, void *p_instance, void *p_binding) {                             \
-		/* Explicitly call the deconstructor to ensure proper lifecycle for non-trivial members */                       \
-		reinterpret_cast<m_class *>(p_binding)->~m_class();                                                              \
-		Memory::free_static(reinterpret_cast<m_class *>(p_binding));                                                     \
-	}                                                                                                                    \
-	static GDExtensionBool ___binding_reference_callback(void *p_token, void *p_instance, GDExtensionBool p_reference) { \
-		return true;                                                                                                     \
-	}                                                                                                                    \
-	static constexpr GDExtensionInstanceBindingCallbacks ___binding_callbacks = {                                        \
-		___binding_create_callback,                                                                                      \
-		___binding_free_callback,                                                                                        \
-		___binding_reference_callback,                                                                                   \
-	};                                                                                                                   \
-	m_class() : m_class(#m_class) {}
+#define GDEXTENSION_CLASS_ALIAS(m_class, m_alias_for, m_inherits) /******************************************************************************************************************/ \
+private:                                                                                                                                                                               \
+	inline static ::godot::internal::EngineClassRegistration<m_class> _gde_engine_class_registration_helper;                                                                           \
+	void operator=(const m_class &p_rval) {}                                                                                                                                           \
+	friend class ::godot::ClassDB;                                                                                                                                                     \
+	friend class ::godot::Wrapped;                                                                                                                                                     \
+                                                                                                                                                                                       \
+protected:                                                                                                                                                                             \
+	m_class(const char *p_godot_class) : m_inherits(p_godot_class) {}                                                                                                                  \
+	m_class(GodotObject *p_godot_object) : m_inherits(p_godot_object) {}                                                                                                               \
+                                                                                                                                                                                       \
+	static void _bind_methods() {}                                                                                                                                                     \
+                                                                                                                                                                                       \
+	static void (*_get_bind_methods())() {                                                                                                                                             \
+		return nullptr;                                                                                                                                                                \
+	}                                                                                                                                                                                  \
+                                                                                                                                                                                       \
+	static void (Wrapped::*_get_notification())(int) {                                                                                                                                 \
+		return nullptr;                                                                                                                                                                \
+	}                                                                                                                                                                                  \
+                                                                                                                                                                                       \
+	static bool (Wrapped::*_get_set())(const ::godot::StringName &p_name, const Variant &p_property) {                                                                                 \
+		return nullptr;                                                                                                                                                                \
+	}                                                                                                                                                                                  \
+                                                                                                                                                                                       \
+	static bool (Wrapped::*_get_get())(const ::godot::StringName &p_name, Variant &r_ret) const {                                                                                      \
+		return nullptr;                                                                                                                                                                \
+	}                                                                                                                                                                                  \
+                                                                                                                                                                                       \
+	static inline bool has_get_property_list() {                                                                                                                                       \
+		return false;                                                                                                                                                                  \
+	}                                                                                                                                                                                  \
+                                                                                                                                                                                       \
+	static void (Wrapped::*_get_get_property_list())(List<PropertyInfo> * p_list) const {                                                                                              \
+		return nullptr;                                                                                                                                                                \
+	}                                                                                                                                                                                  \
+                                                                                                                                                                                       \
+	static bool (Wrapped::*_get_property_can_revert())(const ::godot::StringName &p_name) const {                                                                                      \
+		return nullptr;                                                                                                                                                                \
+	}                                                                                                                                                                                  \
+                                                                                                                                                                                       \
+	static bool (Wrapped::*_get_property_get_revert())(const ::godot::StringName &p_name, Variant &) const {                                                                           \
+		return nullptr;                                                                                                                                                                \
+	}                                                                                                                                                                                  \
+                                                                                                                                                                                       \
+	static void (Wrapped::*_get_validate_property())(::godot::PropertyInfo & p_property) const {                                                                                       \
+		return nullptr;                                                                                                                                                                \
+	}                                                                                                                                                                                  \
+                                                                                                                                                                                       \
+	static String (Wrapped::*_get_to_string())() const {                                                                                                                               \
+		return nullptr;                                                                                                                                                                \
+	}                                                                                                                                                                                  \
+                                                                                                                                                                                       \
+public:                                                                                                                                                                                \
+	typedef m_class self_type;                                                                                                                                                         \
+	typedef m_inherits parent_type;                                                                                                                                                    \
+                                                                                                                                                                                       \
+	static void initialize_class() {}                                                                                                                                                  \
+                                                                                                                                                                                       \
+	static const ::godot::StringName &get_class_static() {                                                                                                                             \
+		static const ::godot::StringName string_name = ::godot::StringName(#m_alias_for);                                                                                              \
+		return string_name;                                                                                                                                                            \
+	}                                                                                                                                                                                  \
+                                                                                                                                                                                       \
+	static const ::godot::StringName &get_parent_class_static() {                                                                                                                      \
+		return m_inherits::get_class_static();                                                                                                                                         \
+	}                                                                                                                                                                                  \
+                                                                                                                                                                                       \
+	static void free(void *data, GDExtensionClassInstancePtr ptr) {                                                                                                                    \
+	}                                                                                                                                                                                  \
+                                                                                                                                                                                       \
+	static void *_gde_binding_create_callback(void *p_token, void *p_instance) {                                                                                                       \
+		/* Do not call memnew here, we don't want the post-initializer to be called */                                                                                                 \
+		return new ("", "") m_class((GodotObject *)p_instance);                                                                                                                        \
+	}                                                                                                                                                                                  \
+	static void _gde_binding_free_callback(void *p_token, void *p_instance, void *p_binding) {                                                                                         \
+		/* Explicitly call the deconstructor to ensure proper lifecycle for non-trivial members */                                                                                     \
+		reinterpret_cast<m_class *>(p_binding)->~m_class();                                                                                                                            \
+		Memory::free_static(reinterpret_cast<m_class *>(p_binding));                                                                                                                   \
+	}                                                                                                                                                                                  \
+	static GDExtensionBool _gde_binding_reference_callback(void *p_token, void *p_instance, GDExtensionBool p_reference) {                                                             \
+		return true;                                                                                                                                                                   \
+	}                                                                                                                                                                                  \
+	static constexpr GDExtensionInstanceBindingCallbacks _gde_binding_callbacks = {                                                                                                    \
+		_gde_binding_create_callback,                                                                                                                                                  \
+		_gde_binding_free_callback,                                                                                                                                                    \
+		_gde_binding_reference_callback,                                                                                                                                               \
+	};                                                                                                                                                                                 \
+	m_class() : m_class(#m_alias_for) {}                                                                                                                                               \
+                                                                                                                                                                                       \
+private:
+
+// Don't use this for your classes, use GDCLASS() instead.
+#define GDEXTENSION_CLASS(m_class, m_inherits) GDEXTENSION_CLASS_ALIAS(m_class, m_class, m_inherits)
+
+#define GDVIRTUAL_CALL(m_name, ...) _gdvirtual_##m_name##_call<false>(__VA_ARGS__)
+#define GDVIRTUAL_CALL_PTR(m_obj, m_name, ...) m_obj->_gdvirtual_##m_name##_call<false>(__VA_ARGS__)
+
+#define GDVIRTUAL_REQUIRED_CALL(m_name, ...) _gdvirtual_##m_name##_call<true>(__VA_ARGS__)
+#define GDVIRTUAL_REQUIRED_CALL_PTR(m_obj, m_name, ...) m_obj->_gdvirtual_##m_name##_call<true>(__VA_ARGS__)
+
+#define GDVIRTUAL_BIND(m_name, ...) ::godot::ClassDB::add_virtual_method(get_class_static(), _gdvirtual_##m_name##_get_method_info(), ::godot::snarray(__VA_ARGS__));
+#define GDVIRTUAL_IS_OVERRIDDEN(m_name) _gdvirtual_##m_name##_overridden()
+#define GDVIRTUAL_IS_OVERRIDDEN_PTR(m_obj, m_name) m_obj->_gdvirtual_##m_name##_overridden()
 
 #endif // GODOT_WRAPPED_HPP

include/godot_cpp/core/binder_common.hpp

@@ -83,7 +83,7 @@ namespace godot {
 	};                                                                           \
 	}
 
-template <class T>
+template <typename T>
 struct VariantCaster {
 	static _FORCE_INLINE_ T cast(const Variant &p_variant) {
 		using TStripped = std::remove_pointer_t<T>;
@@ -95,7 +95,7 @@ struct VariantCaster {
 	}
 };
 
-template <class T>
+template <typename T>
 struct VariantCaster<T &> {
 	static _FORCE_INLINE_ T cast(const Variant &p_variant) {
 		using TStripped = std::remove_pointer_t<T>;
@@ -107,7 +107,7 @@ struct VariantCaster<T &> {
 	}
 };
 
-template <class T>
+template <typename T>
 struct VariantCaster<const T &> {
 	static _FORCE_INLINE_ T cast(const Variant &p_variant) {
 		using TStripped = std::remove_pointer_t<T>;
@@ -144,11 +144,11 @@ struct VariantObjectClassChecker<const Ref<T> &> {
 	}
 };
 
-template <class T>
+template <typename T>
 struct VariantCasterAndValidate {
 	static _FORCE_INLINE_ T cast(const Variant **p_args, uint32_t p_arg_idx, GDExtensionCallError &r_error) {
 		GDExtensionVariantType argtype = GDExtensionVariantType(GetTypeInfo<T>::VARIANT_TYPE);
-		if (!internal::gde_interface->variant_can_convert_strict(static_cast<GDExtensionVariantType>(p_args[p_arg_idx]->get_type()), argtype) ||
+		if (!internal::gdextension_interface_variant_can_convert_strict(static_cast<GDExtensionVariantType>(p_args[p_arg_idx]->get_type()), argtype) ||
 				!VariantObjectClassChecker<T>::check(p_args[p_arg_idx])) {
 			r_error.error = GDEXTENSION_CALL_ERROR_INVALID_ARGUMENT;
 			r_error.argument = p_arg_idx;
@@ -159,11 +159,11 @@ struct VariantCasterAndValidate {
 	}
 };
 
-template <class T>
+template <typename T>
 struct VariantCasterAndValidate<T &> {
 	static _FORCE_INLINE_ T cast(const Variant **p_args, uint32_t p_arg_idx, GDExtensionCallError &r_error) {
 		GDExtensionVariantType argtype = GDExtensionVariantType(GetTypeInfo<T>::VARIANT_TYPE);
-		if (!internal::gde_interface->variant_can_convert_strict(static_cast<GDExtensionVariantType>(p_args[p_arg_idx]->get_type()), argtype) ||
+		if (!internal::gdextension_interface_variant_can_convert_strict(static_cast<GDExtensionVariantType>(p_args[p_arg_idx]->get_type()), argtype) ||
 				!VariantObjectClassChecker<T>::check(p_args[p_arg_idx])) {
 			r_error.error = GDEXTENSION_CALL_ERROR_INVALID_ARGUMENT;
 			r_error.argument = p_arg_idx;
@@ -174,11 +174,11 @@ struct VariantCasterAndValidate<T &> {
 	}
 };
 
-template <class T>
+template <typename T>
 struct VariantCasterAndValidate<const T &> {
 	static _FORCE_INLINE_ T cast(const Variant **p_args, uint32_t p_arg_idx, GDExtensionCallError &r_error) {
 		GDExtensionVariantType argtype = GDExtensionVariantType(GetTypeInfo<T>::VARIANT_TYPE);
-		if (!internal::gde_interface->variant_can_convert_strict(static_cast<GDExtensionVariantType>(p_args[p_arg_idx]->get_type()), argtype) ||
+		if (!internal::gdextension_interface_variant_can_convert_strict(static_cast<GDExtensionVariantType>(p_args[p_arg_idx]->get_type()), argtype) ||
 				!VariantObjectClassChecker<T>::check(p_args[p_arg_idx])) {
 			r_error.error = GDEXTENSION_CALL_ERROR_INVALID_ARGUMENT;
 			r_error.argument = p_arg_idx;
@@ -189,47 +189,47 @@ struct VariantCasterAndValidate<const T &> {
 	}
 };
 
-template <class T, class... P, size_t... Is>
+template <typename T, typename... P, size_t... Is>
 void call_with_ptr_args_helper(T *p_instance, void (T::*p_method)(P...), const GDExtensionConstTypePtr *p_args, IndexSequence<Is...>) {
 	(p_instance->*p_method)(PtrToArg<P>::convert(p_args[Is])...);
 }
 
-template <class T, class... P, size_t... Is>
+template <typename T, typename... P, size_t... Is>
 void call_with_ptr_argsc_helper(T *p_instance, void (T::*p_method)(P...) const, const GDExtensionConstTypePtr *p_args, IndexSequence<Is...>) {
 	(p_instance->*p_method)(PtrToArg<P>::convert(p_args[Is])...);
 }
 
-template <class T, class R, class... P, size_t... Is>
+template <typename T, typename R, typename... P, size_t... Is>
 void call_with_ptr_args_ret_helper(T *p_instance, R (T::*p_method)(P...), const GDExtensionConstTypePtr *p_args, void *r_ret, IndexSequence<Is...>) {
 	PtrToArg<R>::encode((p_instance->*p_method)(PtrToArg<P>::convert(p_args[Is])...), r_ret);
 }
 
-template <class T, class R, class... P, size_t... Is>
+template <typename T, typename R, typename... P, size_t... Is>
 void call_with_ptr_args_retc_helper(T *p_instance, R (T::*p_method)(P...) const, const GDExtensionConstTypePtr *p_args, void *r_ret, IndexSequence<Is...>) {
 	PtrToArg<R>::encode((p_instance->*p_method)(PtrToArg<P>::convert(p_args[Is])...), r_ret);
 }
 
-template <class T, class... P>
+template <typename T, typename... P>
 void call_with_ptr_args(T *p_instance, void (T::*p_method)(P...), const GDExtensionConstTypePtr *p_args, void * /*ret*/) {
 	call_with_ptr_args_helper<T, P...>(p_instance, p_method, p_args, BuildIndexSequence<sizeof...(P)>{});
 }
 
-template <class T, class... P>
+template <typename T, typename... P>
 void call_with_ptr_args(T *p_instance, void (T::*p_method)(P...) const, const GDExtensionConstTypePtr *p_args, void * /*ret*/) {
 	call_with_ptr_argsc_helper<T, P...>(p_instance, p_method, p_args, BuildIndexSequence<sizeof...(P)>{});
 }
 
-template <class T, class R, class... P>
+template <typename T, typename R, typename... P>
 void call_with_ptr_args(T *p_instance, R (T::*p_method)(P...), const GDExtensionConstTypePtr *p_args, void *r_ret) {
 	call_with_ptr_args_ret_helper<T, R, P...>(p_instance, p_method, p_args, r_ret, BuildIndexSequence<sizeof...(P)>{});
 }
 
-template <class T, class R, class... P>
+template <typename T, typename R, typename... P>
 void call_with_ptr_args(T *p_instance, R (T::*p_method)(P...) const, const GDExtensionConstTypePtr *p_args, void *r_ret) {
 	call_with_ptr_args_retc_helper<T, R, P...>(p_instance, p_method, p_args, r_ret, BuildIndexSequence<sizeof...(P)>{});
 }
 
-template <class T, class... P, size_t... Is>
+template <typename T, typename... P, size_t... Is>
 void call_with_variant_args_helper(T *p_instance, void (T::*p_method)(P...), const Variant **p_args, GDExtensionCallError &r_error, IndexSequence<Is...>) {
 	r_error.error = GDEXTENSION_CALL_OK;
 
@@ -241,7 +241,7 @@ void call_with_variant_args_helper(T *p_instance, void (T::*p_method)(P...), con
 	(void)(p_args); // Avoid warning.
 }
 
-template <class T, class... P, size_t... Is>
+template <typename T, typename... P, size_t... Is>
 void call_with_variant_argsc_helper(T *p_instance, void (T::*p_method)(P...) const, const Variant **p_args, GDExtensionCallError &r_error, IndexSequence<Is...>) {
 	r_error.error = GDEXTENSION_CALL_OK;
 
@@ -253,7 +253,7 @@ void call_with_variant_argsc_helper(T *p_instance, void (T::*p_method)(P...) con
 	(void)(p_args); // Avoid warning.
 }
 
-template <class T, class R, class... P, size_t... Is>
+template <typename T, typename R, typename... P, size_t... Is>
 void call_with_variant_args_ret_helper(T *p_instance, R (T::*p_method)(P...), const Variant **p_args, Variant &r_ret, GDExtensionCallError &r_error, IndexSequence<Is...>) {
 	r_error.error = GDEXTENSION_CALL_OK;
 
@@ -264,7 +264,7 @@ void call_with_variant_args_ret_helper(T *p_instance, R (T::*p_method)(P...), co
 #endif
 }
 
-template <class T, class R, class... P, size_t... Is>
+template <typename T, typename R, typename... P, size_t... Is>
 void call_with_variant_args_retc_helper(T *p_instance, R (T::*p_method)(P...) const, const Variant **p_args, Variant &r_ret, GDExtensionCallError &r_error, IndexSequence<Is...>) {
 	r_error.error = GDEXTENSION_CALL_OK;
 
@@ -276,12 +276,66 @@ void call_with_variant_args_retc_helper(T *p_instance, R (T::*p_method)(P...) co
 	(void)p_args;
 }
 
-template <class T, class... P>
+template <typename T, typename... P>
+void call_with_variant_args(T *p_instance, void (T::*p_method)(P...), const Variant **p_args, int p_argcount, GDExtensionCallError &r_error) {
+#ifdef DEBUG_ENABLED
+	if ((size_t)p_argcount > sizeof...(P)) {
+		r_error.error = GDEXTENSION_CALL_ERROR_TOO_MANY_ARGUMENTS;
+		r_error.expected = (int32_t)sizeof...(P);
+		return;
+	}
+
+	if ((size_t)p_argcount < sizeof...(P)) {
+		r_error.error = GDEXTENSION_CALL_ERROR_TOO_FEW_ARGUMENTS;
+		r_error.expected = (int32_t)sizeof...(P);
+		return;
+	}
+#endif
+	call_with_variant_args_helper<T, P...>(p_instance, p_method, p_args, r_error, BuildIndexSequence<sizeof...(P)>{});
+}
+
+template <typename T, typename R, typename... P>
+void call_with_variant_args_ret(T *p_instance, R (T::*p_method)(P...), const Variant **p_args, int p_argcount, Variant &r_ret, GDExtensionCallError &r_error) {
+#ifdef DEBUG_ENABLED
+	if ((size_t)p_argcount > sizeof...(P)) {
+		r_error.error = GDEXTENSION_CALL_ERROR_TOO_MANY_ARGUMENTS;
+		r_error.expected = (int32_t)sizeof...(P);
+		return;
+	}
+
+	if ((size_t)p_argcount < sizeof...(P)) {
+		r_error.error = GDEXTENSION_CALL_ERROR_TOO_FEW_ARGUMENTS;
+		r_error.expected = (int32_t)sizeof...(P);
+		return;
+	}
+#endif
+	call_with_variant_args_ret_helper<T, R, P...>(p_instance, p_method, p_args, r_ret, r_error, BuildIndexSequence<sizeof...(P)>{});
+}
+
+template <typename T, typename R, typename... P>
+void call_with_variant_args_retc(T *p_instance, R (T::*p_method)(P...) const, const Variant **p_args, int p_argcount, Variant &r_ret, GDExtensionCallError &r_error) {
+#ifdef DEBUG_ENABLED
+	if ((size_t)p_argcount > sizeof...(P)) {
+		r_error.error = GDEXTENSION_CALL_ERROR_TOO_MANY_ARGUMENTS;
+		r_error.expected = (int32_t)sizeof...(P);
+		return;
+	}
+
+	if ((size_t)p_argcount < sizeof...(P)) {
+		r_error.error = GDEXTENSION_CALL_ERROR_TOO_FEW_ARGUMENTS;
+		r_error.expected = (int32_t)sizeof...(P);
+		return;
+	}
+#endif
+	call_with_variant_args_retc_helper<T, R, P...>(p_instance, p_method, p_args, r_ret, r_error, BuildIndexSequence<sizeof...(P)>{});
+}
+
+template <typename T, typename... P>
 void call_with_variant_args_dv(T *p_instance, void (T::*p_method)(P...), const GDExtensionConstVariantPtr *p_args, int p_argcount, GDExtensionCallError &r_error, const std::vector<Variant> &default_values) {
 #ifdef DEBUG_ENABLED
 	if ((size_t)p_argcount > sizeof...(P)) {
 		r_error.error = GDEXTENSION_CALL_ERROR_TOO_MANY_ARGUMENTS;
-		r_error.argument = (int32_t)sizeof...(P);
+		r_error.expected = (int32_t)sizeof...(P);
 		return;
 	}
 #endif
@@ -292,7 +346,7 @@ void call_with_variant_args_dv(T *p_instance, void (T::*p_method)(P...), const G
 #ifdef DEBUG_ENABLED
 	if (missing > dvs) {
 		r_error.error = GDEXTENSION_CALL_ERROR_TOO_FEW_ARGUMENTS;
-		r_error.argument = (int32_t)sizeof...(P);
+		r_error.expected = (int32_t)sizeof...(P);
 		return;
 	}
 #endif
@@ -311,12 +365,12 @@ void call_with_variant_args_dv(T *p_instance, void (T::*p_method)(P...), const G
 	call_with_variant_args_helper(p_instance, p_method, argsp.data(), r_error, BuildIndexSequence<sizeof...(P)>{});
 }
 
-template <class T, class... P>
+template <typename T, typename... P>
 void call_with_variant_argsc_dv(T *p_instance, void (T::*p_method)(P...) const, const GDExtensionConstVariantPtr *p_args, int p_argcount, GDExtensionCallError &r_error, const std::vector<Variant> &default_values) {
 #ifdef DEBUG_ENABLED
 	if ((size_t)p_argcount > sizeof...(P)) {
 		r_error.error = GDEXTENSION_CALL_ERROR_TOO_MANY_ARGUMENTS;
-		r_error.argument = (int32_t)sizeof...(P);
+		r_error.expected = (int32_t)sizeof...(P);
 		return;
 	}
 #endif
@@ -327,7 +381,7 @@ void call_with_variant_argsc_dv(T *p_instance, void (T::*p_method)(P...) const,
 #ifdef DEBUG_ENABLED
 	if (missing > dvs) {
 		r_error.error = GDEXTENSION_CALL_ERROR_TOO_FEW_ARGUMENTS;
-		r_error.argument = (int32_t)sizeof...(P);
+		r_error.expected = (int32_t)sizeof...(P);
 		return;
 	}
 #endif
@@ -346,12 +400,12 @@ void call_with_variant_argsc_dv(T *p_instance, void (T::*p_method)(P...) const,
 	call_with_variant_argsc_helper(p_instance, p_method, argsp.data(), r_error, BuildIndexSequence<sizeof...(P)>{});
 }
 
-template <class T, class R, class... P>
+template <typename T, typename R, typename... P>
 void call_with_variant_args_ret_dv(T *p_instance, R (T::*p_method)(P...), const GDExtensionConstVariantPtr *p_args, int p_argcount, Variant &r_ret, GDExtensionCallError &r_error, const std::vector<Variant> &default_values) {
 #ifdef DEBUG_ENABLED
 	if ((size_t)p_argcount > sizeof...(P)) {
 		r_error.error = GDEXTENSION_CALL_ERROR_TOO_MANY_ARGUMENTS;
-		r_error.argument = (int32_t)sizeof...(P);
+		r_error.expected = (int32_t)sizeof...(P);
 		return;
 	}
 #endif
@@ -362,7 +416,7 @@ void call_with_variant_args_ret_dv(T *p_instance, R (T::*p_method)(P...), const
 #ifdef DEBUG_ENABLED
 	if (missing > dvs) {
 		r_error.error = GDEXTENSION_CALL_ERROR_TOO_FEW_ARGUMENTS;
-		r_error.argument = (int32_t)sizeof...(P);
+		r_error.expected = (int32_t)sizeof...(P);
 		return;
 	}
 #endif
@@ -381,12 +435,12 @@ void call_with_variant_args_ret_dv(T *p_instance, R (T::*p_method)(P...), const
 	call_with_variant_args_ret_helper(p_instance, p_method, argsp.data(), r_ret, r_error, BuildIndexSequence<sizeof...(P)>{});
 }
 
-template <class T, class R, class... P>
+template <typename T, typename R, typename... P>
 void call_with_variant_args_retc_dv(T *p_instance, R (T::*p_method)(P...) const, const GDExtensionConstVariantPtr *p_args, int p_argcount, Variant &r_ret, GDExtensionCallError &r_error, const std::vector<Variant> &default_values) {
 #ifdef DEBUG_ENABLED
 	if ((size_t)p_argcount > sizeof...(P)) {
 		r_error.error = GDEXTENSION_CALL_ERROR_TOO_MANY_ARGUMENTS;
-		r_error.argument = (int32_t)sizeof...(P);
+		r_error.expected = (int32_t)sizeof...(P);
 		return;
 	}
 #endif
@@ -397,7 +451,7 @@ void call_with_variant_args_retc_dv(T *p_instance, R (T::*p_method)(P...) const,
 #ifdef DEBUG_ENABLED
 	if (missing > dvs) {
 		r_error.error = GDEXTENSION_CALL_ERROR_TOO_FEW_ARGUMENTS;
-		r_error.argument = (int32_t)sizeof...(P);
+		r_error.expected = (int32_t)sizeof...(P);
 		return;
 	}
 #endif
@@ -423,7 +477,7 @@ void call_with_variant_args_retc_dv(T *p_instance, R (T::*p_method)(P...) const,
 #pragma GCC diagnostic ignored "-Wunused-but-set-parameter"
 #endif
 
-template <class Q>
+template <typename Q>
 void call_get_argument_type_helper(int p_arg, int &index, GDExtensionVariantType &type) {
 	if (p_arg == index) {
 		type = GDExtensionVariantType(GetTypeInfo<Q>::VARIANT_TYPE);
@@ -431,7 +485,7 @@ void call_get_argument_type_helper(int p_arg, int &index, GDExtensionVariantType
 	index++;
 }
 
-template <class... P>
+template <typename... P>
 GDExtensionVariantType call_get_argument_type(int p_arg) {
 	GDExtensionVariantType type = GDEXTENSION_VARIANT_TYPE_NIL;
 	int index = 0;
@@ -443,7 +497,7 @@ GDExtensionVariantType call_get_argument_type(int p_arg) {
 	return type;
 }
 
-template <class Q>
+template <typename Q>
 void call_get_argument_type_info_helper(int p_arg, int &index, PropertyInfo &info) {
 	if (p_arg == index) {
 		info = GetTypeInfo<Q>::get_class_info();
@@ -451,7 +505,7 @@ void call_get_argument_type_info_helper(int p_arg, int &index, PropertyInfo &inf
 	index++;
 }
 
-template <class... P>
+template <typename... P>
 void call_get_argument_type_info(int p_arg, PropertyInfo &info) {
 	int index = 0;
 	// I think rocket science is simpler than modern C++.
@@ -461,7 +515,7 @@ void call_get_argument_type_info(int p_arg, PropertyInfo &info) {
 	(void)index; // Suppress GCC warning.
 }
 
-template <class Q>
+template <typename Q>
 void call_get_argument_metadata_helper(int p_arg, int &index, GDExtensionClassMethodArgumentMetadata &md) {
 	if (p_arg == index) {
 		md = GetTypeInfo<Q>::METADATA;
@@ -469,7 +523,7 @@ void call_get_argument_metadata_helper(int p_arg, int &index, GDExtensionClassMe
 	index++;
 }
 
-template <class... P>
+template <typename... P>
 GDExtensionClassMethodArgumentMetadata call_get_argument_metadata(int p_arg) {
 	GDExtensionClassMethodArgumentMetadata md = GDEXTENSION_METHOD_ARGUMENT_METADATA_NONE;
 
@@ -482,7 +536,7 @@ GDExtensionClassMethodArgumentMetadata call_get_argument_metadata(int p_arg) {
 	return md;
 }
 
-template <class... P, size_t... Is>
+template <typename... P, size_t... Is>
 void call_with_variant_args_static(void (*p_method)(P...), const Variant **p_args, GDExtensionCallError &r_error, IndexSequence<Is...>) {
 	r_error.error = GDEXTENSION_CALL_OK;
 
@@ -493,12 +547,12 @@ void call_with_variant_args_static(void (*p_method)(P...), const Variant **p_arg
 #endif
 }
 
-template <class... P>
+template <typename... P>
 void call_with_variant_args_static_dv(void (*p_method)(P...), const GDExtensionConstVariantPtr *p_args, int p_argcount, GDExtensionCallError &r_error, const std::vector<Variant> &default_values) {
 #ifdef DEBUG_ENABLED
 	if ((size_t)p_argcount > sizeof...(P)) {
 		r_error.error = GDEXTENSION_CALL_ERROR_TOO_MANY_ARGUMENTS;
-		r_error.argument = sizeof...(P);
+		r_error.expected = sizeof...(P);
 		return;
 	}
 #endif
@@ -509,7 +563,7 @@ void call_with_variant_args_static_dv(void (*p_method)(P...), const GDExtensionC
 #ifdef DEBUG_ENABLED
 	if (missing > dvs) {
 		r_error.error = GDEXTENSION_CALL_ERROR_TOO_FEW_ARGUMENTS;
-		r_error.argument = sizeof...(P);
+		r_error.expected = sizeof...(P);
 		return;
 	}
 #endif
@@ -528,17 +582,53 @@ void call_with_variant_args_static_dv(void (*p_method)(P...), const GDExtensionC
 	call_with_variant_args_static(p_method, argsp.data(), r_error, BuildIndexSequence<sizeof...(P)>{});
 }
 
-template <class... P, size_t... Is>
+template <typename... P, size_t... Is>
 void call_with_ptr_args_static_method_helper(void (*p_method)(P...), const GDExtensionConstTypePtr *p_args, IndexSequence<Is...>) {
 	p_method(PtrToArg<P>::convert(p_args[Is])...);
 }
 
-template <class... P>
+template <typename... P>
 void call_with_ptr_args_static_method(void (*p_method)(P...), const GDExtensionConstTypePtr *p_args) {
 	call_with_ptr_args_static_method_helper<P...>(p_method, p_args, BuildIndexSequence<sizeof...(P)>{});
 }
 
-template <class R, class... P, size_t... Is>
+template <typename R, typename... P>
+void call_with_variant_args_static_ret(R (*p_method)(P...), const Variant **p_args, int p_argcount, Variant &r_ret, GDExtensionCallError &r_error) {
+#ifdef DEBUG_ENABLED
+	if ((size_t)p_argcount > sizeof...(P)) {
+		r_error.error = GDEXTENSION_CALL_ERROR_TOO_MANY_ARGUMENTS;
+		r_error.expected = (int32_t)sizeof...(P);
+		return;
+	}
+
+	if ((size_t)p_argcount < sizeof...(P)) {
+		r_error.error = GDEXTENSION_CALL_ERROR_TOO_FEW_ARGUMENTS;
+		r_error.expected = (int32_t)sizeof...(P);
+		return;
+	}
+#endif
+	call_with_variant_args_static_ret<R, P...>(p_method, p_args, r_ret, r_error, BuildIndexSequence<sizeof...(P)>{});
+}
+
+template <typename... P>
+void call_with_variant_args_static_ret(void (*p_method)(P...), const Variant **p_args, int p_argcount, Variant &r_ret, GDExtensionCallError &r_error) {
+#ifdef DEBUG_ENABLED
+	if ((size_t)p_argcount > sizeof...(P)) {
+		r_error.error = GDEXTENSION_CALL_ERROR_TOO_MANY_ARGUMENTS;
+		r_error.expected = (int32_t)sizeof...(P);
+		return;
+	}
+
+	if ((size_t)p_argcount < sizeof...(P)) {
+		r_error.error = GDEXTENSION_CALL_ERROR_TOO_FEW_ARGUMENTS;
+		r_error.expected = (int32_t)sizeof...(P);
+		return;
+	}
+#endif
+	call_with_variant_args_static<P...>(p_method, p_args, r_error, BuildIndexSequence<sizeof...(P)>{});
+}
+
+template <typename R, typename... P, size_t... Is>
 void call_with_variant_args_static_ret(R (*p_method)(P...), const Variant **p_args, Variant &r_ret, GDExtensionCallError &r_error, IndexSequence<Is...>) {
 	r_error.error = GDEXTENSION_CALL_OK;
 
@@ -549,12 +639,12 @@ void call_with_variant_args_static_ret(R (*p_method)(P...), const Variant **p_ar
 #endif
 }
 
-template <class R, class... P>
+template <typename R, typename... P>
 void call_with_variant_args_static_ret_dv(R (*p_method)(P...), const GDExtensionConstVariantPtr *p_args, int p_argcount, Variant &r_ret, GDExtensionCallError &r_error, const std::vector<Variant> &default_values) {
 #ifdef DEBUG_ENABLED
 	if ((size_t)p_argcount > sizeof...(P)) {
 		r_error.error = GDEXTENSION_CALL_ERROR_TOO_MANY_ARGUMENTS;
-		r_error.argument = sizeof...(P);
+		r_error.expected = sizeof...(P);
 		return;
 	}
 #endif
@@ -565,7 +655,7 @@ void call_with_variant_args_static_ret_dv(R (*p_method)(P...), const GDExtension
 #ifdef DEBUG_ENABLED
 	if (missing > dvs) {
 		r_error.error = GDEXTENSION_CALL_ERROR_TOO_FEW_ARGUMENTS;
-		r_error.argument = sizeof...(P);
+		r_error.expected = sizeof...(P);
 		return;
 	}
 #endif
@@ -584,12 +674,12 @@ void call_with_variant_args_static_ret_dv(R (*p_method)(P...), const GDExtension
 	call_with_variant_args_static_ret(p_method, argsp.data(), r_ret, r_error, BuildIndexSequence<sizeof...(P)>{});
 }
 
-template <class R, class... P, size_t... Is>
+template <typename R, typename... P, size_t... Is>
 void call_with_ptr_args_static_method_ret_helper(R (*p_method)(P...), const GDExtensionConstTypePtr *p_args, void *r_ret, IndexSequence<Is...>) {
 	PtrToArg<R>::encode(p_method(PtrToArg<P>::convert(p_args[Is])...), r_ret);
 }
 
-template <class R, class... P>
+template <typename R, typename... P>
 void call_with_ptr_args_static_method_ret(R (*p_method)(P...), const GDExtensionConstTypePtr *p_args, void *r_ret) {
 	call_with_ptr_args_static_method_ret_helper<R, P...>(p_method, p_args, r_ret, BuildIndexSequence<sizeof...(P)>{});
 }

include/godot_cpp/core/builtin_ptrcall.hpp

@@ -32,6 +32,7 @@
 #define GODOT_BUILTIN_PTRCALL_HPP
 
 #include <gdextension_interface.h>
+#include <godot_cpp/core/object.hpp>
 
 #include <array>
 
@@ -39,13 +40,24 @@ namespace godot {
 
 namespace internal {
 
-template <class... Args>
+template <typename O, typename... Args>
+O *_call_builtin_method_ptr_ret_obj(const GDExtensionPtrBuiltInMethod method, GDExtensionTypePtr base, const Args &...args) {
+	GodotObject *ret = nullptr;
+	std::array<GDExtensionConstTypePtr, sizeof...(Args)> call_args = { { (GDExtensionConstTypePtr)args... } };
+	method(base, call_args.data(), &ret, sizeof...(Args));
+	if (ret == nullptr) {
+		return nullptr;
+	}
+	return reinterpret_cast<O *>(internal::get_object_instance_binding(ret));
+}
+
+template <typename... Args>
 void _call_builtin_constructor(const GDExtensionPtrConstructor constructor, GDExtensionTypePtr base, Args... args) {
 	std::array<GDExtensionConstTypePtr, sizeof...(Args)> call_args = { { (GDExtensionConstTypePtr)args... } };
 	constructor(base, call_args.data());
 }
 
-template <class T, class... Args>
+template <typename T, typename... Args>
 T _call_builtin_method_ptr_ret(const GDExtensionPtrBuiltInMethod method, GDExtensionTypePtr base, Args... args) {
 	T ret;
 	std::array<GDExtensionConstTypePtr, sizeof...(Args)> call_args = { { (GDExtensionConstTypePtr)args... } };
@@ -53,20 +65,20 @@ T _call_builtin_method_ptr_ret(const GDExtensionPtrBuiltInMethod method, GDExten
 	return ret;
 }
 
-template <class... Args>
+template <typename... Args>
 void _call_builtin_method_ptr_no_ret(const GDExtensionPtrBuiltInMethod method, GDExtensionTypePtr base, Args... args) {
 	std::array<GDExtensionConstTypePtr, sizeof...(Args)> call_args = { { (GDExtensionConstTypePtr)args... } };
 	method(base, call_args.data(), nullptr, sizeof...(Args));
 }
 
-template <class T>
+template <typename T>
 T _call_builtin_operator_ptr(const GDExtensionPtrOperatorEvaluator op, GDExtensionConstTypePtr left, GDExtensionConstTypePtr right) {
 	T ret;
 	op(left, right, &ret);
 	return ret;
 }
 
-template <class T>
+template <typename T>
 T _call_builtin_ptr_getter(const GDExtensionPtrGetter getter, GDExtensionConstTypePtr base) {
 	T ret;
 	getter(base, &ret);

include/godot_cpp/core/class_db.hpp

@@ -38,7 +38,14 @@
 #include <godot_cpp/core/method_bind.hpp>
 #include <godot_cpp/core/object.hpp>
 
+#include <godot_cpp/classes/class_db_singleton.hpp>
+
+// Makes callable_mp readily available in all classes connecting signals.
+// Needs to come after method_bind and object have been included.
+#include <godot_cpp/variant/callable_method_pointer.hpp>
+
 #include <list>
+#include <mutex>
 #include <set>
 #include <string>
 #include <unordered_map>
@@ -79,15 +86,6 @@ class ClassDB {
 	friend class godot::GDExtensionBinding;
 
 public:
-	struct PropertySetGet {
-		int index;
-		StringName setter;
-		StringName getter;
-		MethodBind *_setptr;
-		MethodBind *_getptr;
-		Variant::Type type;
-	};
-
 	struct ClassInfo {
 		StringName name;
 		StringName parent_name;
@@ -104,27 +102,82 @@ public:
 private:
 	// This may only contain custom classes, not Godot classes
 	static std::unordered_map<StringName, ClassInfo> classes;
+	static std::unordered_map<StringName, const GDExtensionInstanceBindingCallbacks *> instance_binding_callbacks;
+	// Used to remember the custom class registration order.
+	static std::vector<StringName> class_register_order;
+	static std::unordered_map<StringName, Object *> engine_singletons;
+	static std::mutex engine_singletons_mutex;
 
 	static MethodBind *bind_methodfi(uint32_t p_flags, MethodBind *p_bind, const MethodDefinition &method_name, const void **p_defs, int p_defcount);
 	static void initialize_class(const ClassInfo &cl);
 	static void bind_method_godot(const StringName &p_class_name, MethodBind *p_method);
 
-	template <class T, bool is_abstract>
-	static void _register_class(bool p_virtual = false);
+	template <typename T, bool is_abstract>
+	static void _register_class(bool p_virtual = false, bool p_exposed = true, bool p_runtime = false);
+
+	template <typename T>
+	static GDExtensionObjectPtr _create_instance_func(void *data) {
+		if constexpr (!std::is_abstract_v<T>) {
+			T *new_object = memnew(T);
+			return new_object->_owner;
+		} else {
+			return nullptr;
+		}
+	}
+
+	template <typename T>
+	static GDExtensionClassInstancePtr _recreate_instance_func(void *data, GDExtensionObjectPtr obj) {
+		if constexpr (!std::is_abstract_v<T>) {
+#ifdef HOT_RELOAD_ENABLED
+			T *new_instance = (T *)memalloc(sizeof(T));
+			Wrapped::RecreateInstance recreate_data = { new_instance, obj, Wrapped::recreate_instance };
+			Wrapped::recreate_instance = &recreate_data;
+			memnew_placement(new_instance, T);
+			return new_instance;
+#else
+			return nullptr;
+#endif
+		} else {
+			return nullptr;
+		}
+	}
 
 public:
-	template <class T>
+	template <typename T>
 	static void register_class(bool p_virtual = false);
-	template <class T>
+	template <typename T>
 	static void register_abstract_class();
+	template <typename T>
+	static void register_internal_class();
+	template <typename T>
+	static void register_runtime_class();
 
-	template <class N, class M, typename... VarArgs>
+	_FORCE_INLINE_ static void _register_engine_class(const StringName &p_name, const GDExtensionInstanceBindingCallbacks *p_callbacks) {
+		instance_binding_callbacks[p_name] = p_callbacks;
+	}
+
+	static void _register_engine_singleton(const StringName &p_class_name, Object *p_singleton) {
+		std::lock_guard<std::mutex> lock(engine_singletons_mutex);
+		std::unordered_map<StringName, Object *>::const_iterator i = engine_singletons.find(p_class_name);
+		if (i != engine_singletons.end()) {
+			ERR_FAIL_COND((*i).second != p_singleton);
+			return;
+		}
+		engine_singletons[p_class_name] = p_singleton;
+	}
+
+	static void _unregister_engine_singleton(const StringName &p_class_name) {
+		std::lock_guard<std::mutex> lock(engine_singletons_mutex);
+		engine_singletons.erase(p_class_name);
+	}
+
+	template <typename N, typename M, typename... VarArgs>
 	static MethodBind *bind_method(N p_method_name, M p_method, VarArgs... p_args);
 
-	template <class N, class M, typename... VarArgs>
+	template <typename N, typename M, typename... VarArgs>
 	static MethodBind *bind_static_method(StringName p_class, N p_method_name, M p_method, VarArgs... p_args);
 
-	template <class M>
+	template <typename M>
 	static MethodBind *bind_vararg_method(uint32_t p_flags, StringName p_name, M p_method, const MethodInfo &p_info = MethodInfo(), const std::vector<Variant> &p_default_args = std::vector<Variant>{}, bool p_return_nil_is_variant = true);
 
 	static void add_property_group(const StringName &p_class, const String &p_name, const String &p_prefix);
@@ -132,35 +185,46 @@ public:
 	static void add_property(const StringName &p_class, const PropertyInfo &p_pinfo, const StringName &p_setter, const StringName &p_getter, int p_index = -1);
 	static void add_signal(const StringName &p_class, const MethodInfo &p_signal);
 	static void bind_integer_constant(const StringName &p_class_name, const StringName &p_enum_name, const StringName &p_constant_name, GDExtensionInt p_constant_value, bool p_is_bitfield = false);
+	// Binds an implementation of a virtual method defined in Godot.
 	static void bind_virtual_method(const StringName &p_class, const StringName &p_method, GDExtensionClassCallVirtual p_call);
+	// Add a new virtual method that can be implemented by scripts.
+	static void add_virtual_method(const StringName &p_class, const MethodInfo &p_method, const Vector<StringName> &p_arg_names = Vector<StringName>());
 
 	static MethodBind *get_method(const StringName &p_class, const StringName &p_method);
 
 	static GDExtensionClassCallVirtual get_virtual_func(void *p_userdata, GDExtensionConstStringNamePtr p_name);
+	static const GDExtensionInstanceBindingCallbacks *get_instance_binding_callbacks(const StringName &p_class);
 
 	static void initialize(GDExtensionInitializationLevel p_level);
 	static void deinitialize(GDExtensionInitializationLevel p_level);
+
+	CLASSDB_SINGLETON_FORWARD_METHODS;
 };
 
 #define BIND_CONSTANT(m_constant) \
-	godot::ClassDB::bind_integer_constant(get_class_static(), "", #m_constant, m_constant);
+	::godot::ClassDB::bind_integer_constant(get_class_static(), "", #m_constant, m_constant);
 
 #define BIND_ENUM_CONSTANT(m_constant) \
-	godot::ClassDB::bind_integer_constant(get_class_static(), godot::__constant_get_enum_name(m_constant, #m_constant), #m_constant, m_constant);
+	::godot::ClassDB::bind_integer_constant(get_class_static(), ::godot::_gde_constant_get_enum_name(m_constant, #m_constant), #m_constant, m_constant);
 
 #define BIND_BITFIELD_FLAG(m_constant) \
-	godot::ClassDB::bind_integer_constant(get_class_static(), godot::__constant_get_bitfield_name(m_constant, #m_constant), #m_constant, m_constant, true);
+	::godot::ClassDB::bind_integer_constant(get_class_static(), ::godot::_gde_constant_get_bitfield_name(m_constant, #m_constant), #m_constant, m_constant, true);
 
-#define BIND_VIRTUAL_METHOD(m_class, m_method)                                                                                                  \
-	{                                                                                                                                           \
-		auto ___call##m_method = [](GDExtensionObjectPtr p_instance, const GDExtensionConstTypePtr *p_args, GDExtensionTypePtr p_ret) -> void { \
-			call_with_ptr_args(reinterpret_cast<m_class *>(p_instance), &m_class::m_method, p_args, p_ret);                                     \
-		};                                                                                                                                      \
-		godot::ClassDB::bind_virtual_method(m_class::get_class_static(), #m_method, ___call##m_method);                                         \
+#define BIND_VIRTUAL_METHOD(m_class, m_method)                                                                                                \
+	{                                                                                                                                         \
+		auto _call##m_method = [](GDExtensionObjectPtr p_instance, const GDExtensionConstTypePtr *p_args, GDExtensionTypePtr p_ret) -> void { \
+			call_with_ptr_args(reinterpret_cast<m_class *>(p_instance), &m_class::m_method, p_args, p_ret);                                   \
+		};                                                                                                                                    \
+		::godot::ClassDB::bind_virtual_method(m_class::get_class_static(), #m_method, _call##m_method);                                       \
 	}
 
-template <class T, bool is_abstract>
-void ClassDB::_register_class(bool p_virtual) {
+template <typename T, bool is_abstract>
+void ClassDB::_register_class(bool p_virtual, bool p_exposed, bool p_runtime) {
+	static_assert(TypesAreSame<typename T::self_type, T>::value, "Class not declared properly, please use GDCLASS.");
+	static_assert(!FunctionsAreSame<T::self_type::_bind_methods, T::parent_type::_bind_methods>::value, "Class must declare 'static void _bind_methods'.");
+	static_assert(!std::is_abstract_v<T> || is_abstract, "Class is abstract, please use GDREGISTER_ABSTRACT_CLASS.");
+	instance_binding_callbacks[T::get_class_static()] = &T::_gde_binding_callbacks;
+
 	// Register this class within our plugin
 	ClassInfo cl;
 	cl.name = T::get_class_static();
@@ -172,29 +236,36 @@ void ClassDB::_register_class(bool p_virtual) {
 		cl.parent_ptr = &parent_it->second;
 	}
 	classes[cl.name] = cl;
+	class_register_order.push_back(cl.name);
 
 	// Register this class with Godot
-	GDExtensionClassCreationInfo class_info = {
+	GDExtensionClassCreationInfo3 class_info = {
 		p_virtual, // GDExtensionBool is_virtual;
 		is_abstract, // GDExtensionBool is_abstract;
+		p_exposed, // GDExtensionBool is_exposed;
+		p_runtime, // GDExtensionBool is_runtime;
 		T::set_bind, // GDExtensionClassSet set_func;
 		T::get_bind, // GDExtensionClassGet get_func;
-		T::get_property_list_bind, // GDExtensionClassGetPropertyList get_property_list_func;
-		T::free_property_list_bind, // GDExtensionClassFreePropertyList free_property_list_func;
+		T::has_get_property_list() ? T::get_property_list_bind : nullptr, // GDExtensionClassGetPropertyList get_property_list_func;
+		T::free_property_list_bind, // GDExtensionClassFreePropertyList2 free_property_list_func;
 		T::property_can_revert_bind, // GDExtensionClassPropertyCanRevert property_can_revert_func;
 		T::property_get_revert_bind, // GDExtensionClassPropertyGetRevert property_get_revert_func;
-		T::notification_bind, // GDExtensionClassNotification notification_func;
+		T::validate_property_bind, // GDExtensionClassValidateProperty validate_property_func;
+		T::notification_bind, // GDExtensionClassNotification2 notification_func;
 		T::to_string_bind, // GDExtensionClassToString to_string_func;
 		nullptr, // GDExtensionClassReference reference_func;
 		nullptr, // GDExtensionClassUnreference unreference_func;
-		T::create, // GDExtensionClassCreateInstance create_instance_func; /* this one is mandatory */
+		&_create_instance_func<T>, // GDExtensionClassCreateInstance create_instance_func; /* this one is mandatory */
 		T::free, // GDExtensionClassFreeInstance free_instance_func; /* this one is mandatory */
+		&_recreate_instance_func<T>, // GDExtensionClassRecreateInstance recreate_instance_func;
 		&ClassDB::get_virtual_func, // GDExtensionClassGetVirtual get_virtual_func;
+		nullptr, // GDExtensionClassGetVirtualCallData get_virtual_call_data_func;
+		nullptr, // GDExtensionClassCallVirtualWithData call_virtual_func;
 		nullptr, // GDExtensionClassGetRID get_rid;
 		(void *)&T::get_class_static(), // void *class_userdata;
 	};
 
-	internal::gde_interface->classdb_register_extension_class(internal::library, cl.name._native_ptr(), cl.parent_name._native_ptr(), &class_info);
+	internal::gdextension_interface_classdb_register_extension_class3(internal::library, cl.name._native_ptr(), cl.parent_name._native_ptr(), &class_info);
 
 	// call bind_methods etc. to register all members of the class
 	T::initialize_class();
@@ -203,17 +274,27 @@ void ClassDB::_register_class(bool p_virtual) {
 	initialize_class(classes[cl.name]);
 }
 
-template <class T>
+template <typename T>
 void ClassDB::register_class(bool p_virtual) {
 	ClassDB::_register_class<T, false>(p_virtual);
 }
 
-template <class T>
+template <typename T>
 void ClassDB::register_abstract_class() {
 	ClassDB::_register_class<T, true>();
 }
 
-template <class N, class M, typename... VarArgs>
+template <typename T>
+void ClassDB::register_internal_class() {
+	ClassDB::_register_class<T, false>(false, false);
+}
+
+template <typename T>
+void ClassDB::register_runtime_class() {
+	ClassDB::_register_class<T, false>(false, true, true);
+}
+
+template <typename N, typename M, typename... VarArgs>
 MethodBind *ClassDB::bind_method(N p_method_name, M p_method, VarArgs... p_args) {
 	Variant args[sizeof...(p_args) + 1] = { p_args..., Variant() }; // +1 makes sure zero sized arrays are also supported.
 	const Variant *argptrs[sizeof...(p_args) + 1];
@@ -224,7 +305,7 @@ MethodBind *ClassDB::bind_method(N p_method_name, M p_method, VarArgs... p_args)
 	return bind_methodfi(METHOD_FLAGS_DEFAULT, bind, p_method_name, sizeof...(p_args) == 0 ? nullptr : (const void **)argptrs, sizeof...(p_args));
 }
 
-template <class N, class M, typename... VarArgs>
+template <typename N, typename M, typename... VarArgs>
 MethodBind *ClassDB::bind_static_method(StringName p_class, N p_method_name, M p_method, VarArgs... p_args) {
 	Variant args[sizeof...(p_args) + 1] = { p_args..., Variant() }; // +1 makes sure zero sized arrays are also supported.
 	const Variant *argptrs[sizeof...(p_args) + 1];
@@ -236,10 +317,10 @@ MethodBind *ClassDB::bind_static_method(StringName p_class, N p_method_name, M p
 	return bind_methodfi(0, bind, p_method_name, sizeof...(p_args) == 0 ? nullptr : (const void **)argptrs, sizeof...(p_args));
 }
 
-template <class M>
+template <typename M>
 MethodBind *ClassDB::bind_vararg_method(uint32_t p_flags, StringName p_name, M p_method, const MethodInfo &p_info, const std::vector<Variant> &p_default_args, bool p_return_nil_is_variant) {
 	MethodBind *bind = create_vararg_method_bind(p_method, p_info, p_return_nil_is_variant);
-	ERR_FAIL_COND_V(!bind, nullptr);
+	ERR_FAIL_NULL_V(bind, nullptr);
 
 	bind->set_name(p_name);
 	bind->set_default_arguments(p_default_args);
@@ -268,10 +349,14 @@ MethodBind *ClassDB::bind_vararg_method(uint32_t p_flags, StringName p_name, M p
 	return bind;
 }
 
-#define GDREGISTER_CLASS(m_class) ClassDB::register_class<m_class>();
-#define GDREGISTER_VIRTUAL_CLASS(m_class) ClassDB::register_class<m_class>(true);
-#define GDREGISTER_ABSTRACT_CLASS(m_class) ClassDB::register_abstract_class<m_class>();
+#define GDREGISTER_CLASS(m_class) ::godot::ClassDB::register_class<m_class>();
+#define GDREGISTER_VIRTUAL_CLASS(m_class) ::godot::ClassDB::register_class<m_class>(true);
+#define GDREGISTER_ABSTRACT_CLASS(m_class) ::godot::ClassDB::register_abstract_class<m_class>();
+#define GDREGISTER_INTERNAL_CLASS(m_class) ::godot::ClassDB::register_internal_class<m_class>();
+#define GDREGISTER_RUNTIME_CLASS(m_class) ::godot::ClassDB::register_runtime_class<m_class>();
 
 } // namespace godot
 
+CLASSDB_SINGLETON_VARIANT_CAST;
+
 #endif // GODOT_CLASS_DB_HPP

include/godot_cpp/core/defs.hpp

@@ -108,7 +108,7 @@ typedef float real_t;
 // Generic swap template.
 #ifndef SWAP
 #define SWAP(m_x, m_y) __swap_tmpl((m_x), (m_y))
-template <class T>
+template <typename T>
 inline void __swap_tmpl(T &x, T &y) {
 	T aux = x;
 	x = y;

include/godot_cpp/core/engine_ptrcall.hpp

@@ -43,32 +43,32 @@ namespace godot {
 
 namespace internal {
 
-template <class O, class... Args>
+template <typename O, typename... Args>
 O *_call_native_mb_ret_obj(const GDExtensionMethodBindPtr mb, void *instance, const Args &...args) {
 	GodotObject *ret = nullptr;
 	std::array<GDExtensionConstTypePtr, sizeof...(Args)> mb_args = { { (GDExtensionConstTypePtr)args... } };
-	internal::gde_interface->object_method_bind_ptrcall(mb, instance, mb_args.data(), &ret);
+	internal::gdextension_interface_object_method_bind_ptrcall(mb, instance, mb_args.data(), &ret);
 	if (ret == nullptr) {
 		return nullptr;
 	}
-	return reinterpret_cast<O *>(internal::gde_interface->object_get_instance_binding(ret, internal::token, &O::___binding_callbacks));
+	return reinterpret_cast<O *>(internal::get_object_instance_binding(ret));
 }
 
-template <class R, class... Args>
+template <typename R, typename... Args>
 R _call_native_mb_ret(const GDExtensionMethodBindPtr mb, void *instance, const Args &...args) {
 	R ret;
 	std::array<GDExtensionConstTypePtr, sizeof...(Args)> mb_args = { { (GDExtensionConstTypePtr)args... } };
-	internal::gde_interface->object_method_bind_ptrcall(mb, instance, mb_args.data(), &ret);
+	internal::gdextension_interface_object_method_bind_ptrcall(mb, instance, mb_args.data(), &ret);
 	return ret;
 }
 
-template <class... Args>
+template <typename... Args>
 void _call_native_mb_no_ret(const GDExtensionMethodBindPtr mb, void *instance, const Args &...args) {
 	std::array<GDExtensionConstTypePtr, sizeof...(Args)> mb_args = { { (GDExtensionConstTypePtr)args... } };
-	internal::gde_interface->object_method_bind_ptrcall(mb, instance, mb_args.data(), nullptr);
+	internal::gdextension_interface_object_method_bind_ptrcall(mb, instance, mb_args.data(), nullptr);
 }
 
-template <class R, class... Args>
+template <typename R, typename... Args>
 R _call_utility_ret(GDExtensionPtrUtilityFunction func, const Args &...args) {
 	R ret;
 	std::array<GDExtensionConstTypePtr, sizeof...(Args)> mb_args = { { (GDExtensionConstTypePtr)args... } };
@@ -76,15 +76,15 @@ R _call_utility_ret(GDExtensionPtrUtilityFunction func, const Args &...args) {
 	return ret;
 }
 
-template <class... Args>
-Object *_call_utility_ret_obj(const GDExtensionPtrUtilityFunction func, void *instance, const Args &...args) {
+template <typename... Args>
+Object *_call_utility_ret_obj(const GDExtensionPtrUtilityFunction func, const Args &...args) {
 	GodotObject *ret = nullptr;
 	std::array<GDExtensionConstTypePtr, sizeof...(Args)> mb_args = { { (GDExtensionConstTypePtr)args... } };
 	func(&ret, mb_args.data(), mb_args.size());
-	return (Object *)internal::gde_interface->object_get_instance_binding(ret, internal::token, &Object::___binding_callbacks);
+	return (Object *)internal::get_object_instance_binding(ret);
 }
 
-template <class... Args>
+template <typename... Args>
 void _call_utility_no_ret(const GDExtensionPtrUtilityFunction func, const Args &...args) {
 	std::array<GDExtensionConstTypePtr, sizeof...(Args)> mb_args = { { (GDExtensionConstTypePtr)args... } };
 	func(nullptr, mb_args.data(), mb_args.size());

include/godot_cpp/core/math.hpp

@@ -84,7 +84,7 @@ constexpr auto CLAMP(const T m_a, const T2 m_min, const T3 m_max) {
 // Generic swap template.
 #ifndef SWAP
 #define SWAP(m_x, m_y) __swap_tmpl((m_x), (m_y))
-template <class T>
+template <typename T>
 inline void __swap_tmpl(T &x, T &y) {
 	T aux = x;
 	x = y;
@@ -138,7 +138,7 @@ static inline int get_shift_from_power_of_2(unsigned int p_bits) {
 	return -1;
 }
 
-template <class T>
+template <typename T>
 static _FORCE_INLINE_ T nearest_power_of_2_templated(T x) {
 	--x;
 
@@ -613,6 +613,14 @@ inline bool is_inf(double p_val) {
 	return std::isinf(p_val);
 }
 
+inline bool is_finite(float p_val) {
+	return std::isfinite(p_val);
+}
+
+inline bool is_finite(double p_val) {
+	return std::isfinite(p_val);
+}
+
 inline bool is_equal_approx(float a, float b) {
 	// Check for exact equality first, required to handle "infinity" values.
 	if (a == b) {

include/godot_cpp/core/memory.hpp

@@ -40,24 +40,21 @@
 
 #include <type_traits>
 
-#ifndef PAD_ALIGN
-#define PAD_ALIGN 16 //must always be greater than this at much
-#endif
+// p_dummy argument is added to avoid conflicts with the engine functions when both engine and GDExtension are built as a static library on iOS.
+void *operator new(size_t p_size, const char *p_dummy, const char *p_description); ///< operator new that takes a description and uses MemoryStaticPool
+void *operator new(size_t p_size, const char *p_dummy, void *(*p_allocfunc)(size_t p_size)); ///< operator new that takes a description and uses MemoryStaticPool
+void *operator new(size_t p_size, const char *p_dummy, void *p_pointer, size_t check, const char *p_description); ///< operator new that takes a description and uses a pointer to the preallocated memory
 
-void *operator new(size_t p_size, const char *p_description); ///< operator new that takes a description and uses MemoryStaticPool
-void *operator new(size_t p_size, void *(*p_allocfunc)(size_t p_size)); ///< operator new that takes a description and uses MemoryStaticPool
-void *operator new(size_t p_size, void *p_pointer, size_t check, const char *p_description); ///< operator new that takes a description and uses a pointer to the preallocated memory
-
-_ALWAYS_INLINE_ void *operator new(size_t p_size, void *p_pointer, size_t check, const char *p_description) {
+_ALWAYS_INLINE_ void *operator new(size_t p_size, const char *p_dummy, void *p_pointer, size_t check, const char *p_description) {
 	return p_pointer;
 }
 
 #ifdef _MSC_VER
 // When compiling with VC++ 2017, the above declarations of placement new generate many irrelevant warnings (C4291).
 // The purpose of the following definitions is to muffle these warnings, not to provide a usable implementation of placement delete.
-void operator delete(void *p_mem, const char *p_description);
-void operator delete(void *p_mem, void *(*p_allocfunc)(size_t p_size));
-void operator delete(void *p_mem, void *p_pointer, size_t check, const char *p_description);
+void operator delete(void *p_mem, const char *p_dummy, const char *p_description);
+void operator delete(void *p_mem, const char *p_dummy, void *(*p_allocfunc)(size_t p_size));
+void operator delete(void *p_mem, const char *p_dummy, void *p_pointer, size_t check, const char *p_description);
 #endif
 
 namespace godot {
@@ -68,14 +65,29 @@ class Memory {
 	Memory();
 
 public:
+	// Alignment:  ↓ max_align_t        ↓ uint64_t          ↓ max_align_t
+	//             ┌─────────────────┬──┬────────────────┬──┬───────────...
+	//             │ uint64_t        │░░│ uint64_t       │░░│ T[]
+	//             │ alloc size      │░░│ element count  │░░│ data
+	//             └─────────────────┴──┴────────────────┴──┴───────────...
+	// Offset:     ↑ SIZE_OFFSET        ↑ ELEMENT_OFFSET    ↑ DATA_OFFSET
+	// Note: "alloc size" is used and set by the engine and is never accessed or changed for the extension.
+
+	static constexpr size_t SIZE_OFFSET = 0;
+	static constexpr size_t ELEMENT_OFFSET = ((SIZE_OFFSET + sizeof(uint64_t)) % alignof(uint64_t) == 0) ? (SIZE_OFFSET + sizeof(uint64_t)) : ((SIZE_OFFSET + sizeof(uint64_t)) + alignof(uint64_t) - ((SIZE_OFFSET + sizeof(uint64_t)) % alignof(uint64_t)));
+	static constexpr size_t DATA_OFFSET = ((ELEMENT_OFFSET + sizeof(uint64_t)) % alignof(max_align_t) == 0) ? (ELEMENT_OFFSET + sizeof(uint64_t)) : ((ELEMENT_OFFSET + sizeof(uint64_t)) + alignof(max_align_t) - ((ELEMENT_OFFSET + sizeof(uint64_t)) % alignof(max_align_t)));
+
 	static void *alloc_static(size_t p_bytes, bool p_pad_align = false);
 	static void *realloc_static(void *p_memory, size_t p_bytes, bool p_pad_align = false);
 	static void free_static(void *p_ptr, bool p_pad_align = false);
 };
 
+template <typename T, std::enable_if_t<!std::is_base_of<::godot::Wrapped, T>::value, bool> = true>
+_ALWAYS_INLINE_ void _pre_initialize() {}
+
 _ALWAYS_INLINE_ void postinitialize_handler(void *) {}
 
-template <class T>
+template <typename T>
 _ALWAYS_INLINE_ T *_post_initialize(T *p_obj) {
 	postinitialize_handler(p_obj);
 	return p_obj;
@@ -85,34 +97,34 @@ _ALWAYS_INLINE_ T *_post_initialize(T *p_obj) {
 #define memrealloc(m_mem, m_size) ::godot::Memory::realloc_static(m_mem, m_size)
 #define memfree(m_mem) ::godot::Memory::free_static(m_mem)
 
-#define memnew(m_class) ::godot::_post_initialize(new ("") m_class)
+#define memnew(m_class) (::godot::_pre_initialize<std::remove_pointer_t<decltype(new ("", "") m_class)>>(), ::godot::_post_initialize(new ("", "") m_class))
 
-#define memnew_allocator(m_class, m_allocator) ::godot::_post_initialize(new (m_allocator::alloc) m_class)
-#define memnew_placement(m_placement, m_class) ::godot::_post_initialize(new (m_placement, sizeof(m_class), "") m_class)
+#define memnew_allocator(m_class, m_allocator) (::godot::_pre_initialize<std::remove_pointer_t<decltype(new ("", "") m_class)>>(), ::godot::_post_initialize(new ("", m_allocator::alloc) m_class))
+#define memnew_placement(m_placement, m_class) (::godot::_pre_initialize<std::remove_pointer_t<decltype(new ("", "") m_class)>>(), ::godot::_post_initialize(new ("", m_placement, sizeof(m_class), "") m_class))
 
 // Generic comparator used in Map, List, etc.
-template <class T>
+template <typename T>
 struct Comparator {
 	_ALWAYS_INLINE_ bool operator()(const T &p_a, const T &p_b) const { return (p_a < p_b); }
 };
 
-template <class T>
+template <typename T>
 void memdelete(T *p_class, typename std::enable_if<!std::is_base_of_v<godot::Wrapped, T>>::type * = nullptr) {
-	if (!std::is_trivially_destructible<T>::value) {
+	if constexpr (!std::is_trivially_destructible_v<T>) {
 		p_class->~T();
 	}
 
 	Memory::free_static(p_class);
 }
 
-template <class T, std::enable_if_t<std::is_base_of_v<godot::Wrapped, T>, bool> = true>
+template <typename T, std::enable_if_t<std::is_base_of_v<godot::Wrapped, T>, bool> = true>
 void memdelete(T *p_class) {
-	godot::internal::gde_interface->object_destroy(p_class->_owner);
+	godot::internal::gdextension_interface_object_destroy(p_class->_owner);
 }
 
-template <class T, class A>
+template <typename T, typename A>
 void memdelete_allocator(T *p_class) {
-	if (!std::is_trivially_destructible<T>::value) {
+	if constexpr (!std::is_trivially_destructible_v<T>) {
 		p_class->~T();
 	}
 
@@ -125,16 +137,20 @@ public:
 	_ALWAYS_INLINE_ static void free(void *p_ptr) { Memory::free_static(p_ptr); }
 };
 
-template <class T>
+template <typename T>
 class DefaultTypedAllocator {
 public:
-	template <class... Args>
+	template <typename... Args>
 	_ALWAYS_INLINE_ T *new_allocation(const Args &&...p_args) { return memnew(T(p_args...)); }
 	_ALWAYS_INLINE_ void delete_allocation(T *p_allocation) { memdelete(p_allocation); }
 };
 
 #define memnew_arr(m_class, m_count) memnew_arr_template<m_class>(m_count)
 
+_FORCE_INLINE_ uint64_t *_get_element_count_ptr(uint8_t *p_ptr) {
+	return (uint64_t *)(p_ptr - Memory::DATA_OFFSET + Memory::ELEMENT_OFFSET);
+}
+
 template <typename T>
 T *memnew_arr_template(size_t p_elements, const char *p_descr = "") {
 	if (p_elements == 0) {
@@ -144,17 +160,19 @@ T *memnew_arr_template(size_t p_elements, const char *p_descr = "") {
 	same strategy used by std::vector, and the Vector class, so it should be safe.*/
 
 	size_t len = sizeof(T) * p_elements;
-	uint64_t *mem = (uint64_t *)Memory::alloc_static(len, true);
+	uint8_t *mem = (uint8_t *)Memory::alloc_static(len, true);
 	T *failptr = nullptr; // Get rid of a warning.
-	ERR_FAIL_COND_V(!mem, failptr);
-	*(mem - 1) = p_elements;
+	ERR_FAIL_NULL_V(mem, failptr);
 
-	if (!std::is_trivially_destructible<T>::value) {
+	uint64_t *_elem_count_ptr = _get_element_count_ptr(mem);
+	*(_elem_count_ptr) = p_elements;
+
+	if constexpr (!std::is_trivially_destructible_v<T>) {
 		T *elems = (T *)mem;
 
 		/* call operator new */
 		for (size_t i = 0; i < p_elements; i++) {
-			new (&elems[i], sizeof(T), p_descr) T;
+			new ("", &elems[i], sizeof(T), p_descr) T;
 		}
 	}
 
@@ -162,11 +180,19 @@ T *memnew_arr_template(size_t p_elements, const char *p_descr = "") {
 }
 
 template <typename T>
-void memdelete_arr(T *p_class) {
-	uint64_t *ptr = (uint64_t *)p_class;
+size_t memarr_len(const T *p_class) {
+	uint8_t *ptr = (uint8_t *)p_class;
+	uint64_t *_elem_count_ptr = _get_element_count_ptr(ptr);
+	return *(_elem_count_ptr);
+}
 
-	if (!std::is_trivially_destructible<T>::value) {
-		uint64_t elem_count = *(ptr - 1);
+template <typename T>
+void memdelete_arr(T *p_class) {
+	uint8_t *ptr = (uint8_t *)p_class;
+
+	if constexpr (!std::is_trivially_destructible_v<T>) {
+		uint64_t *_elem_count_ptr = _get_element_count_ptr(ptr);
+		uint64_t elem_count = *(_elem_count_ptr);
 
 		for (uint64_t i = 0; i < elem_count; i++) {
 			p_class[i].~T();

include/godot_cpp/core/method_bind.hpp

@@ -132,7 +132,7 @@ public:
 		std::vector<GDExtensionClassMethodArgumentMetadata> vec;
 		// First element is return value
 		vec.reserve(argument_count + 1);
-		for (int i = 0; i < argument_count; i++) {
+		for (int i = 0; i < argument_count + 1; i++) {
 			vec.push_back(get_argument_metadata(i - 1));
 		}
 		return vec;
@@ -147,7 +147,7 @@ public:
 	virtual ~MethodBind();
 };
 
-template <class Derived, class T, class R, bool should_returns>
+template <typename Derived, typename T, typename R, bool should_returns>
 class MethodBindVarArgBase : public MethodBind {
 protected:
 	R(T::*method)
@@ -208,7 +208,7 @@ private:
 	}
 };
 
-template <class T>
+template <typename T>
 class MethodBindVarArgT : public MethodBindVarArgBase<MethodBindVarArgT<T>, T, void, false> {
 	friend class MethodBindVarArgBase<MethodBindVarArgT<T>, T, void, false>;
 
@@ -231,14 +231,14 @@ private:
 	}
 };
 
-template <class T>
+template <typename T>
 MethodBind *create_vararg_method_bind(void (T::*p_method)(const Variant **, GDExtensionInt, GDExtensionCallError &), const MethodInfo &p_info, bool p_return_nil_is_variant) {
 	MethodBind *a = memnew((MethodBindVarArgT<T>)(p_method, p_info, p_return_nil_is_variant));
 	a->set_instance_class(T::get_class_static());
 	return a;
 }
 
-template <class T, class R>
+template <typename T, typename R>
 class MethodBindVarArgTR : public MethodBindVarArgBase<MethodBindVarArgTR<T, R>, T, R, true> {
 	friend class MethodBindVarArgBase<MethodBindVarArgTR<T, R>, T, R, true>;
 
@@ -260,7 +260,7 @@ private:
 	}
 };
 
-template <class T, class R>
+template <typename T, typename R>
 MethodBind *create_vararg_method_bind(R (T::*p_method)(const Variant **, GDExtensionInt, GDExtensionCallError &), const MethodInfo &p_info, bool p_return_nil_is_variant) {
 	MethodBind *a = memnew((MethodBindVarArgTR<T, R>)(p_method, p_info, p_return_nil_is_variant));
 	a->set_instance_class(T::get_class_static());
@@ -268,8 +268,8 @@ MethodBind *create_vararg_method_bind(R (T::*p_method)(const Variant **, GDExten
 }
 
 #ifndef TYPED_METHOD_BIND
-class ___UnexistingClass;
-#define MB_T ___UnexistingClass
+class _gde_UnexistingClass;
+#define MB_T _gde_UnexistingClass
 #else
 #define MB_T T
 #endif
@@ -277,9 +277,9 @@ class ___UnexistingClass;
 // No return, not const.
 
 #ifdef TYPED_METHOD_BIND
-template <class T, class... P>
+template <typename T, typename... P>
 #else
-template <class... P>
+template <typename... P>
 #endif // TYPED_METHOD_BIND
 class MethodBindT : public MethodBind {
 	void (MB_T::*method)(P...);
@@ -339,7 +339,7 @@ public:
 	}
 };
 
-template <class T, class... P>
+template <typename T, typename... P>
 MethodBind *create_method_bind(void (T::*p_method)(P...)) {
 #ifdef TYPED_METHOD_BIND
 	MethodBind *a = memnew((MethodBindT<T, P...>)(p_method));
@@ -353,9 +353,9 @@ MethodBind *create_method_bind(void (T::*p_method)(P...)) {
 // No return, const.
 
 #ifdef TYPED_METHOD_BIND
-template <class T, class... P>
+template <typename T, typename... P>
 #else
-template <class... P>
+template <typename... P>
 #endif // TYPED_METHOD_BIND
 class MethodBindTC : public MethodBind {
 	void (MB_T::*method)(P...) const;
@@ -412,10 +412,11 @@ public:
 		method = p_method;
 		generate_argument_types(sizeof...(P));
 		set_argument_count(sizeof...(P));
+		set_const(true);
 	}
 };
 
-template <class T, class... P>
+template <typename T, typename... P>
 MethodBind *create_method_bind(void (T::*p_method)(P...) const) {
 #ifdef TYPED_METHOD_BIND
 	MethodBind *a = memnew((MethodBindTC<T, P...>)(p_method));
@@ -429,9 +430,9 @@ MethodBind *create_method_bind(void (T::*p_method)(P...) const) {
 // Return, not const.
 
 #ifdef TYPED_METHOD_BIND
-template <class T, class R, class... P>
+template <typename T, typename R, typename... P>
 #else
-template <class R, class... P>
+template <typename R, typename... P>
 #endif // TYPED_METHOD_BIND
 class MethodBindTR : public MethodBind {
 	R(MB_T::*method)
@@ -498,7 +499,7 @@ public:
 	}
 };
 
-template <class T, class R, class... P>
+template <typename T, typename R, typename... P>
 MethodBind *create_method_bind(R (T::*p_method)(P...)) {
 #ifdef TYPED_METHOD_BIND
 	MethodBind *a = memnew((MethodBindTR<T, R, P...>)(p_method));
@@ -512,9 +513,9 @@ MethodBind *create_method_bind(R (T::*p_method)(P...)) {
 // Return, const.
 
 #ifdef TYPED_METHOD_BIND
-template <class T, class R, class... P>
+template <typename T, typename R, typename... P>
 #else
-template <class R, class... P>
+template <typename R, typename... P>
 #endif // TYPED_METHOD_BIND
 class MethodBindTRC : public MethodBind {
 	R(MB_T::*method)
@@ -578,10 +579,11 @@ public:
 		generate_argument_types(sizeof...(P));
 		set_argument_count(sizeof...(P));
 		set_return(true);
+		set_const(true);
 	}
 };
 
-template <class T, class R, class... P>
+template <typename T, typename R, typename... P>
 MethodBind *create_method_bind(R (T::*p_method)(P...) const) {
 #ifdef TYPED_METHOD_BIND
 	MethodBind *a = memnew((MethodBindTRC<T, R, P...>)(p_method));
@@ -596,7 +598,7 @@ MethodBind *create_method_bind(R (T::*p_method)(P...) const) {
 
 // no return
 
-template <class... P>
+template <typename... P>
 class MethodBindTS : public MethodBind {
 	void (*function)(P...);
 
@@ -652,7 +654,7 @@ public:
 	}
 };
 
-template <class... P>
+template <typename... P>
 MethodBind *create_static_method_bind(void (*p_method)(P...)) {
 	MethodBind *a = memnew((MethodBindTS<P...>)(p_method));
 	return a;
@@ -660,7 +662,7 @@ MethodBind *create_static_method_bind(void (*p_method)(P...)) {
 
 // return
 
-template <class R, class... P>
+template <typename R, typename... P>
 class MethodBindTRS : public MethodBind {
 	R(*function)
 	(P...);
@@ -722,7 +724,7 @@ public:
 	}
 };
 
-template <class R, class... P>
+template <typename R, typename... P>
 MethodBind *create_static_method_bind(R (*p_method)(P...)) {
 	MethodBind *a = memnew((MethodBindTRS<R, P...>)(p_method));
 	return a;

include/godot_cpp/core/method_ptrcall.hpp

@@ -33,12 +33,13 @@
 
 #include <godot_cpp/core/defs.hpp>
 
+#include <godot_cpp/core/object.hpp>
 #include <godot_cpp/godot.hpp>
 #include <godot_cpp/variant/variant.hpp>
 
 namespace godot {
 
-template <class T>
+template <typename T>
 struct PtrToArg {};
 
 #define MAKE_PTRARG(m_type)                                            \
@@ -160,30 +161,33 @@ MAKE_PTRARG(PackedFloat64Array);
 MAKE_PTRARG(PackedStringArray);
 MAKE_PTRARG(PackedVector2Array);
 MAKE_PTRARG(PackedVector3Array);
+MAKE_PTRARG(PackedVector4Array);
 MAKE_PTRARG(PackedColorArray);
 MAKE_PTRARG_BY_REFERENCE(Variant);
 
 // This is for Object.
 
-template <class T>
+template <typename T>
 struct PtrToArg<T *> {
+	static_assert(std::is_base_of<Object, T>::value, "Cannot encode non-Object value as an Object");
 	_FORCE_INLINE_ static T *convert(const void *p_ptr) {
-		return reinterpret_cast<T *>(godot::internal::gde_interface->object_get_instance_binding(*reinterpret_cast<GDExtensionObjectPtr *>(const_cast<void *>(p_ptr)), godot::internal::token, &T::___binding_callbacks));
+		return likely(p_ptr) ? reinterpret_cast<T *>(godot::internal::get_object_instance_binding(*reinterpret_cast<GDExtensionObjectPtr *>(const_cast<void *>(p_ptr)))) : nullptr;
 	}
 	typedef Object *EncodeT;
 	_FORCE_INLINE_ static void encode(T *p_var, void *p_ptr) {
-		*reinterpret_cast<const void **>(p_ptr) = p_var ? p_var->_owner : nullptr;
+		*reinterpret_cast<const void **>(p_ptr) = likely(p_var) ? p_var->_owner : nullptr;
 	}
 };
 
-template <class T>
+template <typename T>
 struct PtrToArg<const T *> {
+	static_assert(std::is_base_of<Object, T>::value, "Cannot encode non-Object value as an Object");
 	_FORCE_INLINE_ static const T *convert(const void *p_ptr) {
-		return reinterpret_cast<const T *>(godot::internal::gde_interface->object_get_instance_binding(*reinterpret_cast<GDExtensionObjectPtr *>(const_cast<void *>(p_ptr)), godot::internal::token, &T::___binding_callbacks));
+		return likely(p_ptr) ? reinterpret_cast<const T *>(godot::internal::get_object_instance_binding(*reinterpret_cast<GDExtensionObjectPtr *>(const_cast<void *>(p_ptr)))) : nullptr;
 	}
 	typedef const Object *EncodeT;
 	_FORCE_INLINE_ static void encode(T *p_var, void *p_ptr) {
-		*reinterpret_cast<const void **>(p_ptr) = p_var ? p_var->_owner : nullptr;
+		*reinterpret_cast<const void **>(p_ptr) = likely(p_var) ? p_var->_owner : nullptr;
 	}
 };
 

include/godot_cpp/core/object.hpp

@@ -33,6 +33,8 @@
 
 #include <godot_cpp/core/defs.hpp>
 
+#include <godot_cpp/core/object_id.hpp>
+
 #include <godot_cpp/core/property_info.hpp>
 
 #include <godot_cpp/variant/variant.hpp>
@@ -45,13 +47,20 @@
 
 #include <vector>
 
-#define ADD_SIGNAL(m_signal) godot::ClassDB::add_signal(get_class_static(), m_signal)
-#define ADD_GROUP(m_name, m_prefix) godot::ClassDB::add_property_group(get_class_static(), m_name, m_prefix)
-#define ADD_SUBGROUP(m_name, m_prefix) godot::ClassDB::add_property_subgroup(get_class_static(), m_name, m_prefix)
-#define ADD_PROPERTY(m_property, m_setter, m_getter) godot::ClassDB::add_property(get_class_static(), m_property, m_setter, m_getter)
+#define ADD_SIGNAL(m_signal) ::godot::ClassDB::add_signal(get_class_static(), m_signal)
+#define ADD_GROUP(m_name, m_prefix) ::godot::ClassDB::add_property_group(get_class_static(), m_name, m_prefix)
+#define ADD_SUBGROUP(m_name, m_prefix) ::godot::ClassDB::add_property_subgroup(get_class_static(), m_name, m_prefix)
+#define ADD_PROPERTY(m_property, m_setter, m_getter) ::godot::ClassDB::add_property(get_class_static(), m_property, m_setter, m_getter)
+#define ADD_PROPERTYI(m_property, m_setter, m_getter, m_index) ::godot::ClassDB::add_property(get_class_static(), m_property, m_setter, m_getter, m_index)
 
 namespace godot {
 
+namespace internal {
+
+Object *get_object_instance_binding(GodotObject *);
+
+} // namespace internal
+
 struct MethodInfo {
 	StringName name;
 	PropertyInfo return_val;
@@ -59,6 +68,8 @@ struct MethodInfo {
 	int id = 0;
 	std::vector<PropertyInfo> arguments;
 	std::vector<Variant> default_arguments;
+	GDExtensionClassMethodArgumentMetadata return_val_metadata;
+	std::vector<GDExtensionClassMethodArgumentMetadata> arguments_metadata;
 
 	inline bool operator==(const MethodInfo &p_method) const { return id == p_method.id; }
 	inline bool operator<(const MethodInfo &p_method) const { return id == p_method.id ? (name < p_method.name) : (id < p_method.id); }
@@ -69,93 +80,71 @@ struct MethodInfo {
 
 	MethodInfo();
 	MethodInfo(StringName p_name);
-	template <class... Args>
+	template <typename... Args>
 	MethodInfo(StringName p_name, const Args &...args);
 	MethodInfo(Variant::Type ret);
 	MethodInfo(Variant::Type ret, StringName p_name);
-	template <class... Args>
+	template <typename... Args>
 	MethodInfo(Variant::Type ret, StringName p_name, const Args &...args);
 	MethodInfo(const PropertyInfo &p_ret, StringName p_name);
-	template <class... Args>
+	template <typename... Args>
 	MethodInfo(const PropertyInfo &p_ret, StringName p_name, const Args &...);
 };
 
-template <class... Args>
+template <typename... Args>
 MethodInfo::MethodInfo(StringName p_name, const Args &...args) :
 		name(p_name), flags(GDEXTENSION_METHOD_FLAG_NORMAL) {
 	arguments = { args... };
 }
 
-template <class... Args>
+template <typename... Args>
 MethodInfo::MethodInfo(Variant::Type ret, StringName p_name, const Args &...args) :
 		name(p_name), flags(GDEXTENSION_METHOD_FLAG_NORMAL) {
 	return_val.type = ret;
 	arguments = { args... };
 }
 
-template <class... Args>
+template <typename... Args>
 MethodInfo::MethodInfo(const PropertyInfo &p_ret, StringName p_name, const Args &...args) :
 		name(p_name), return_val(p_ret), flags(GDEXTENSION_METHOD_FLAG_NORMAL) {
 	arguments = { args... };
 }
 
-class ObjectID {
-	uint64_t id = 0;
-
-public:
-	_FORCE_INLINE_ bool is_ref_counted() const { return (id & (uint64_t(1) << 63)) != 0; }
-	_FORCE_INLINE_ bool is_valid() const { return id != 0; }
-	_FORCE_INLINE_ bool is_null() const { return id == 0; }
-	_FORCE_INLINE_ operator uint64_t() const { return id; }
-	_FORCE_INLINE_ operator int64_t() const { return id; }
-
-	_FORCE_INLINE_ bool operator==(const ObjectID &p_id) const { return id == p_id.id; }
-	_FORCE_INLINE_ bool operator!=(const ObjectID &p_id) const { return id != p_id.id; }
-	_FORCE_INLINE_ bool operator<(const ObjectID &p_id) const { return id < p_id.id; }
-
-	_FORCE_INLINE_ void operator=(int64_t p_int64) { id = p_int64; }
-	_FORCE_INLINE_ void operator=(uint64_t p_uint64) { id = p_uint64; }
-
-	_FORCE_INLINE_ ObjectID() {}
-	_FORCE_INLINE_ explicit ObjectID(const uint64_t p_id) { id = p_id; }
-	_FORCE_INLINE_ explicit ObjectID(const int64_t p_id) { id = p_id; }
-};
-
 class ObjectDB {
 public:
 	static Object *get_instance(uint64_t p_object_id) {
-		GDExtensionObjectPtr obj = internal::gde_interface->object_get_instance_from_id(p_object_id);
+		GDExtensionObjectPtr obj = internal::gdextension_interface_object_get_instance_from_id(p_object_id);
 		if (obj == nullptr) {
 			return nullptr;
 		}
-		return reinterpret_cast<Object *>(internal::gde_interface->object_get_instance_binding(obj, internal::token, &Object::___binding_callbacks));
+		return internal::get_object_instance_binding(obj);
 	}
 };
 
-template <class T>
+template <typename T>
 T *Object::cast_to(Object *p_object) {
 	if (p_object == nullptr) {
 		return nullptr;
 	}
 	StringName class_name = T::get_class_static();
-	GDExtensionObjectPtr casted = internal::gde_interface->object_cast_to(p_object->_owner, internal::gde_interface->classdb_get_class_tag(class_name._native_ptr()));
+	GDExtensionObjectPtr casted = internal::gdextension_interface_object_cast_to(p_object->_owner, internal::gdextension_interface_classdb_get_class_tag(class_name._native_ptr()));
 	if (casted == nullptr) {
 		return nullptr;
 	}
-	return reinterpret_cast<T *>(internal::gde_interface->object_get_instance_binding(casted, internal::token, &T::___binding_callbacks));
+	return dynamic_cast<T *>(internal::get_object_instance_binding(casted));
 }
 
-template <class T>
+template <typename T>
 const T *Object::cast_to(const Object *p_object) {
 	if (p_object == nullptr) {
 		return nullptr;
 	}
 	StringName class_name = T::get_class_static();
-	GDExtensionObjectPtr casted = internal::gde_interface->object_cast_to(p_object->_owner, internal::gde_interface->classdb_get_class_tag(class_name._native_ptr()));
+	GDExtensionObjectPtr casted = internal::gdextension_interface_object_cast_to(p_object->_owner, internal::gdextension_interface_classdb_get_class_tag(class_name._native_ptr()));
 	if (casted == nullptr) {
 		return nullptr;
 	}
-	return reinterpret_cast<const T *>(internal::gde_interface->object_get_instance_binding(casted, internal::token, &T::___binding_callbacks));
+	return dynamic_cast<const T *>(internal::get_object_instance_binding(casted));
 }
 
 } // namespace godot

include/godot_cpp/core/object_id.hpp

@@ -0,0 +1,62 @@
+/**************************************************************************/
+/*  object_id.hpp                                                         */
+/**************************************************************************/
+/*                         This file is part of:                          */
+/*                             GODOT ENGINE                               */
+/*                        https://godotengine.org                         */
+/**************************************************************************/
+/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
+/*                                                                        */
+/* Permission is hereby granted, free of charge, to any person obtaining  */
+/* a copy of this software and associated documentation files (the        */
+/* "Software"), to deal in the Software without restriction, including    */
+/* without limitation the rights to use, copy, modify, merge, publish,    */
+/* distribute, sublicense, and/or sell copies of the Software, and to     */
+/* permit persons to whom the Software is furnished to do so, subject to  */
+/* the following conditions:                                              */
+/*                                                                        */
+/* The above copyright notice and this permission notice shall be         */
+/* included in all copies or substantial portions of the Software.        */
+/*                                                                        */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY   */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,   */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE      */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
+/**************************************************************************/
+
+#ifndef GODOT_OBJECT_ID_HPP
+#define GODOT_OBJECT_ID_HPP
+
+#include <godot_cpp/core/defs.hpp>
+
+namespace godot {
+
+class ObjectID {
+	uint64_t id = 0;
+
+public:
+	_FORCE_INLINE_ bool is_ref_counted() const { return (id & (uint64_t(1) << 63)) != 0; }
+	_FORCE_INLINE_ bool is_valid() const { return id != 0; }
+	_FORCE_INLINE_ bool is_null() const { return id == 0; }
+	_FORCE_INLINE_ operator uint64_t() const { return id; }
+	_FORCE_INLINE_ operator int64_t() const { return id; }
+
+	_FORCE_INLINE_ bool operator==(const ObjectID &p_id) const { return id == p_id.id; }
+	_FORCE_INLINE_ bool operator!=(const ObjectID &p_id) const { return id != p_id.id; }
+	_FORCE_INLINE_ bool operator<(const ObjectID &p_id) const { return id < p_id.id; }
+
+	_FORCE_INLINE_ void operator=(int64_t p_int64) { id = p_int64; }
+	_FORCE_INLINE_ void operator=(uint64_t p_uint64) { id = p_uint64; }
+
+	_FORCE_INLINE_ ObjectID() {}
+	_FORCE_INLINE_ explicit ObjectID(const uint64_t p_id) { id = p_id; }
+	_FORCE_INLINE_ explicit ObjectID(const int64_t p_id) { id = p_id; }
+};
+
+} // namespace godot
+
+#endif // GODOT_OBJECT_ID_HPP

include/godot_cpp/core/property_info.hpp

@@ -47,9 +47,9 @@ struct PropertyInfo {
 	Variant::Type type = Variant::NIL;
 	StringName name;
 	StringName class_name;
-	uint32_t hint = 0;
+	uint32_t hint = PROPERTY_HINT_NONE;
 	String hint_string;
-	uint32_t usage = 7;
+	uint32_t usage = PROPERTY_USAGE_DEFAULT;
 
 	PropertyInfo() = default;
 
@@ -68,6 +68,63 @@ struct PropertyInfo {
 
 	PropertyInfo(GDExtensionVariantType p_type, const StringName &p_name, PropertyHint p_hint = PROPERTY_HINT_NONE, const String &p_hint_string = "", uint32_t p_usage = PROPERTY_USAGE_DEFAULT, const StringName &p_class_name = "") :
 			PropertyInfo((Variant::Type)p_type, p_name, p_hint, p_hint_string, p_usage, p_class_name) {}
+
+	PropertyInfo(const GDExtensionPropertyInfo *p_info) :
+			PropertyInfo(p_info->type, *reinterpret_cast<StringName *>(p_info->name), (PropertyHint)p_info->hint, *reinterpret_cast<String *>(p_info->hint_string), p_info->usage, *reinterpret_cast<StringName *>(p_info->class_name)) {}
+
+	operator Dictionary() const {
+		Dictionary dict;
+		dict["name"] = name;
+		dict["class_name"] = class_name;
+		dict["type"] = type;
+		dict["hint"] = hint;
+		dict["hint_string"] = hint_string;
+		dict["usage"] = usage;
+		return dict;
+	}
+
+	static PropertyInfo from_dict(const Dictionary &p_dict) {
+		PropertyInfo pi;
+		if (p_dict.has("type")) {
+			pi.type = Variant::Type(int(p_dict["type"]));
+		}
+		if (p_dict.has("name")) {
+			pi.name = p_dict["name"];
+		}
+		if (p_dict.has("class_name")) {
+			pi.class_name = p_dict["class_name"];
+		}
+		if (p_dict.has("hint")) {
+			pi.hint = PropertyHint(int(p_dict["hint"]));
+		}
+		if (p_dict.has("hint_string")) {
+			pi.hint_string = p_dict["hint_string"];
+		}
+		if (p_dict.has("usage")) {
+			pi.usage = p_dict["usage"];
+		}
+		return pi;
+	}
+
+	void _update(GDExtensionPropertyInfo *p_info) {
+		p_info->type = (GDExtensionVariantType)type;
+		*(reinterpret_cast<StringName *>(p_info->name)) = name;
+		p_info->hint = hint;
+		*(reinterpret_cast<String *>(p_info->hint_string)) = hint_string;
+		p_info->usage = usage;
+		*(reinterpret_cast<StringName *>(p_info->class_name)) = class_name;
+	}
+
+	GDExtensionPropertyInfo _to_gdextension() const {
+		return {
+			(GDExtensionVariantType)type,
+			name._native_ptr(),
+			class_name._native_ptr(),
+			hint,
+			hint_string._native_ptr(),
+			usage,
+		};
+	}
 };
 
 } // namespace godot

include/godot_cpp/core/type_info.hpp

@@ -58,6 +58,16 @@ struct TypesAreSame<A, A> {
 	static bool const value = true;
 };
 
+template <auto A, auto B>
+struct FunctionsAreSame {
+	static bool const value = false;
+};
+
+template <auto A>
+struct FunctionsAreSame<A, A> {
+	static bool const value = true;
+};
+
 template <typename B, typename D>
 struct TypeInherits {
 	static D *get_d();
@@ -90,7 +100,7 @@ static PropertyInfo make_property_info(Variant::Type p_type, const StringName &p
 // instead of a forward declaration. You can always forward declare 'T' in a header file, and then
 // include the actual declaration of 'T' in the source file where 'GetTypeInfo<T>' is instantiated.
 
-template <class T, typename = void>
+template <typename T, typename = void>
 struct GetTypeInfo;
 
 #define MAKE_TYPE_INFO(m_type, m_var_type)                                                                            \
@@ -175,6 +185,7 @@ MAKE_TYPE_INFO(PackedFloat64Array, GDEXTENSION_VARIANT_TYPE_PACKED_FLOAT64_ARRAY
 MAKE_TYPE_INFO(PackedStringArray, GDEXTENSION_VARIANT_TYPE_PACKED_STRING_ARRAY)
 MAKE_TYPE_INFO(PackedVector2Array, GDEXTENSION_VARIANT_TYPE_PACKED_VECTOR2_ARRAY)
 MAKE_TYPE_INFO(PackedVector3Array, GDEXTENSION_VARIANT_TYPE_PACKED_VECTOR3_ARRAY)
+MAKE_TYPE_INFO(PackedVector4Array, GDEXTENSION_VARIANT_TYPE_PACKED_VECTOR4_ARRAY)
 MAKE_TYPE_INFO(PackedColorArray, GDEXTENSION_VARIANT_TYPE_PACKED_COLOR_ARRAY)
 
 // For variant.
@@ -198,8 +209,8 @@ struct GetTypeInfo<const Variant &> {
 
 template <typename T>
 struct GetTypeInfo<T *, typename EnableIf<TypeInherits<Object, T>::value>::type> {
-	static const GDExtensionVariantType VARIANT_TYPE = GDEXTENSION_VARIANT_TYPE_OBJECT;
-	static const GDExtensionClassMethodArgumentMetadata METADATA = GDEXTENSION_METHOD_ARGUMENT_METADATA_NONE;
+	static constexpr GDExtensionVariantType VARIANT_TYPE = GDEXTENSION_VARIANT_TYPE_OBJECT;
+	static constexpr GDExtensionClassMethodArgumentMetadata METADATA = GDEXTENSION_METHOD_ARGUMENT_METADATA_NONE;
 	static inline PropertyInfo get_class_info() {
 		return make_property_info(Variant::Type::OBJECT, "", PROPERTY_HINT_RESOURCE_TYPE, T::get_class_static());
 	}
@@ -207,8 +218,8 @@ struct GetTypeInfo<T *, typename EnableIf<TypeInherits<Object, T>::value>::type>
 
 template <typename T>
 struct GetTypeInfo<const T *, typename EnableIf<TypeInherits<Object, T>::value>::type> {
-	static const GDExtensionVariantType VARIANT_TYPE = GDEXTENSION_VARIANT_TYPE_OBJECT;
-	static const GDExtensionClassMethodArgumentMetadata METADATA = GDEXTENSION_METHOD_ARGUMENT_METADATA_NONE;
+	static constexpr GDExtensionVariantType VARIANT_TYPE = GDEXTENSION_VARIANT_TYPE_OBJECT;
+	static constexpr GDExtensionClassMethodArgumentMetadata METADATA = GDEXTENSION_METHOD_ARGUMENT_METADATA_NONE;
 	static inline PropertyInfo get_class_info() {
 		return make_property_info(Variant::Type::OBJECT, "", PROPERTY_HINT_RESOURCE_TYPE, T::get_class_static());
 	}
@@ -226,8 +237,8 @@ inline String enum_qualified_name_to_class_info_name(const String &p_qualified_n
 #define TEMPL_MAKE_ENUM_TYPE_INFO(m_enum, m_impl)                                                                                            \
 	template <>                                                                                                                              \
 	struct GetTypeInfo<m_impl> {                                                                                                             \
-		static const Variant::Type VARIANT_TYPE = Variant::INT;                                                                              \
-		static const GDExtensionClassMethodArgumentMetadata METADATA = GDEXTENSION_METHOD_ARGUMENT_METADATA_NONE;                            \
+		static constexpr Variant::Type VARIANT_TYPE = Variant::INT;                                                                          \
+		static constexpr GDExtensionClassMethodArgumentMetadata METADATA = GDEXTENSION_METHOD_ARGUMENT_METADATA_NONE;                        \
 		static inline PropertyInfo get_class_info() {                                                                                        \
 			return make_property_info(Variant::Type::INT, "", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_CLASS_IS_ENUM, \
 					enum_qualified_name_to_class_info_name(#m_enum));                                                                        \
@@ -241,21 +252,21 @@ inline String enum_qualified_name_to_class_info_name(const String &p_qualified_n
 	TEMPL_MAKE_ENUM_TYPE_INFO(m_enum, const m_enum &)
 
 template <typename T>
-inline StringName __constant_get_enum_name(T param, StringName p_constant) {
+inline StringName _gde_constant_get_enum_name(T param, StringName p_constant) {
 	if (GetTypeInfo<T>::VARIANT_TYPE == Variant::NIL) {
 		ERR_PRINT(("Missing VARIANT_ENUM_CAST for constant's enum: " + String(p_constant)).utf8().get_data());
 	}
 	return GetTypeInfo<T>::get_class_info().class_name;
 }
 
-template <class T>
+template <typename T>
 class BitField {
 	int64_t value = 0;
 
 public:
 	_FORCE_INLINE_ void set_flag(T p_flag) { value |= p_flag; }
 	_FORCE_INLINE_ bool has_flag(T p_flag) const { return value & p_flag; }
-	_FORCE_INLINE_ void clear_flag(T p_flag) { return value &= ~p_flag; }
+	_FORCE_INLINE_ void clear_flag(T p_flag) { value &= ~p_flag; }
 	_FORCE_INLINE_ BitField(int64_t p_value) { value = p_value; }
 	_FORCE_INLINE_ operator int64_t() const { return value; }
 	_FORCE_INLINE_ operator Variant() const { return value; }
@@ -264,8 +275,8 @@ public:
 #define TEMPL_MAKE_BITFIELD_TYPE_INFO(m_enum, m_impl)                                                                                            \
 	template <>                                                                                                                                  \
 	struct GetTypeInfo<m_impl> {                                                                                                                 \
-		static const Variant::Type VARIANT_TYPE = Variant::INT;                                                                                  \
-		static const GDExtensionClassMethodArgumentMetadata METADATA = GDEXTENSION_METHOD_ARGUMENT_METADATA_NONE;                                \
+		static constexpr Variant::Type VARIANT_TYPE = Variant::INT;                                                                              \
+		static constexpr GDExtensionClassMethodArgumentMetadata METADATA = GDEXTENSION_METHOD_ARGUMENT_METADATA_NONE;                            \
 		static inline PropertyInfo get_class_info() {                                                                                            \
 			return make_property_info(Variant::Type::INT, "", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_CLASS_IS_BITFIELD, \
 					enum_qualified_name_to_class_info_name(#m_enum));                                                                            \
@@ -273,8 +284,8 @@ public:
 	};                                                                                                                                           \
 	template <>                                                                                                                                  \
 	struct GetTypeInfo<BitField<m_impl>> {                                                                                                       \
-		static const Variant::Type VARIANT_TYPE = Variant::INT;                                                                                  \
-		static const GDExtensionClassMethodArgumentMetadata METADATA = GDEXTENSION_METHOD_ARGUMENT_METADATA_NONE;                                \
+		static constexpr Variant::Type VARIANT_TYPE = Variant::INT;                                                                              \
+		static constexpr GDExtensionClassMethodArgumentMetadata METADATA = GDEXTENSION_METHOD_ARGUMENT_METADATA_NONE;                            \
 		static inline PropertyInfo get_class_info() {                                                                                            \
 			return make_property_info(Variant::Type::INT, "", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_CLASS_IS_BITFIELD, \
 					enum_qualified_name_to_class_info_name(#m_enum));                                                                            \
@@ -288,14 +299,14 @@ public:
 	TEMPL_MAKE_BITFIELD_TYPE_INFO(m_enum, const m_enum &)
 
 template <typename T>
-inline StringName __constant_get_bitfield_name(T param, StringName p_constant) {
+inline StringName _gde_constant_get_bitfield_name(T param, StringName p_constant) {
 	if (GetTypeInfo<T>::VARIANT_TYPE == Variant::NIL) {
 		ERR_PRINT(("Missing VARIANT_ENUM_CAST for constant's bitfield: " + String(p_constant)).utf8().get_data());
 	}
 	return GetTypeInfo<BitField<T>>::get_class_info().class_name;
 }
 
-template <class T>
+template <typename T>
 struct PtrToArg<TypedArray<T>> {
 	_FORCE_INLINE_ static TypedArray<T> convert(const void *p_ptr) {
 		return TypedArray<T>(*reinterpret_cast<const Array *>(p_ptr));
@@ -306,7 +317,7 @@ struct PtrToArg<TypedArray<T>> {
 	}
 };
 
-template <class T>
+template <typename T>
 struct PtrToArg<const TypedArray<T> &> {
 	typedef Array EncodeT;
 	_FORCE_INLINE_ static TypedArray<T>
@@ -370,11 +381,14 @@ MAKE_TYPED_ARRAY_INFO(Rect2i, Variant::RECT2I)
 MAKE_TYPED_ARRAY_INFO(Vector3, Variant::VECTOR3)
 MAKE_TYPED_ARRAY_INFO(Vector3i, Variant::VECTOR3I)
 MAKE_TYPED_ARRAY_INFO(Transform2D, Variant::TRANSFORM2D)
+MAKE_TYPED_ARRAY_INFO(Vector4, Variant::VECTOR4)
+MAKE_TYPED_ARRAY_INFO(Vector4i, Variant::VECTOR4I)
 MAKE_TYPED_ARRAY_INFO(Plane, Variant::PLANE)
 MAKE_TYPED_ARRAY_INFO(Quaternion, Variant::QUATERNION)
 MAKE_TYPED_ARRAY_INFO(AABB, Variant::AABB)
 MAKE_TYPED_ARRAY_INFO(Basis, Variant::BASIS)
 MAKE_TYPED_ARRAY_INFO(Transform3D, Variant::TRANSFORM3D)
+MAKE_TYPED_ARRAY_INFO(Projection, Variant::PROJECTION)
 MAKE_TYPED_ARRAY_INFO(Color, Variant::COLOR)
 MAKE_TYPED_ARRAY_INFO(StringName, Variant::STRING_NAME)
 MAKE_TYPED_ARRAY_INFO(NodePath, Variant::NODE_PATH)
@@ -393,8 +407,11 @@ MAKE_TYPED_ARRAY_INFO(Vector<String>, Variant::PACKED_STRING_ARRAY)
 MAKE_TYPED_ARRAY_INFO(Vector<Vector2>, Variant::PACKED_VECTOR2_ARRAY)
 MAKE_TYPED_ARRAY_INFO(Vector<Vector3>, Variant::PACKED_VECTOR3_ARRAY)
 MAKE_TYPED_ARRAY_INFO(Vector<Color>, Variant::PACKED_COLOR_ARRAY)
+MAKE_TYPED_ARRAY_INFO(IPAddress, Variant::STRING)
 */
 
+#undef MAKE_TYPED_ARRAY_INFO
+
 #define CLASS_INFO(m_type) (GetTypeInfo<m_type *>::get_class_info())
 
 } // namespace godot

include/godot_cpp/godot.hpp

@@ -37,42 +37,221 @@ namespace godot {
 
 namespace internal {
 
-extern "C" const GDExtensionInterface *gde_interface;
+extern "C" GDExtensionInterfaceGetProcAddress gdextension_interface_get_proc_address;
 extern "C" GDExtensionClassLibraryPtr library;
 extern "C" void *token;
 
+extern "C" GDExtensionGodotVersion godot_version;
+
+// All of the GDExtension interface functions.
+extern "C" GDExtensionInterfaceGetGodotVersion gdextension_interface_get_godot_version;
+extern "C" GDExtensionInterfaceMemAlloc gdextension_interface_mem_alloc;
+extern "C" GDExtensionInterfaceMemRealloc gdextension_interface_mem_realloc;
+extern "C" GDExtensionInterfaceMemFree gdextension_interface_mem_free;
+extern "C" GDExtensionInterfacePrintError gdextension_interface_print_error;
+extern "C" GDExtensionInterfacePrintErrorWithMessage gdextension_interface_print_error_with_message;
+extern "C" GDExtensionInterfacePrintWarning gdextension_interface_print_warning;
+extern "C" GDExtensionInterfacePrintWarningWithMessage gdextension_interface_print_warning_with_message;
+extern "C" GDExtensionInterfacePrintScriptError gdextension_interface_print_script_error;
+extern "C" GDExtensionInterfacePrintScriptErrorWithMessage gdextension_interface_print_script_error_with_message;
+extern "C" GDExtensionInterfaceGetNativeStructSize gdextension_interface_get_native_struct_size;
+extern "C" GDExtensionInterfaceVariantNewCopy gdextension_interface_variant_new_copy;
+extern "C" GDExtensionInterfaceVariantNewNil gdextension_interface_variant_new_nil;
+extern "C" GDExtensionInterfaceVariantDestroy gdextension_interface_variant_destroy;
+extern "C" GDExtensionInterfaceVariantCall gdextension_interface_variant_call;
+extern "C" GDExtensionInterfaceVariantCallStatic gdextension_interface_variant_call_static;
+extern "C" GDExtensionInterfaceVariantEvaluate gdextension_interface_variant_evaluate;
+extern "C" GDExtensionInterfaceVariantSet gdextension_interface_variant_set;
+extern "C" GDExtensionInterfaceVariantSetNamed gdextension_interface_variant_set_named;
+extern "C" GDExtensionInterfaceVariantSetKeyed gdextension_interface_variant_set_keyed;
+extern "C" GDExtensionInterfaceVariantSetIndexed gdextension_interface_variant_set_indexed;
+extern "C" GDExtensionInterfaceVariantGet gdextension_interface_variant_get;
+extern "C" GDExtensionInterfaceVariantGetNamed gdextension_interface_variant_get_named;
+extern "C" GDExtensionInterfaceVariantGetKeyed gdextension_interface_variant_get_keyed;
+extern "C" GDExtensionInterfaceVariantGetIndexed gdextension_interface_variant_get_indexed;
+extern "C" GDExtensionInterfaceVariantIterInit gdextension_interface_variant_iter_init;
+extern "C" GDExtensionInterfaceVariantIterNext gdextension_interface_variant_iter_next;
+extern "C" GDExtensionInterfaceVariantIterGet gdextension_interface_variant_iter_get;
+extern "C" GDExtensionInterfaceVariantHash gdextension_interface_variant_hash;
+extern "C" GDExtensionInterfaceVariantRecursiveHash gdextension_interface_variant_recursive_hash;
+extern "C" GDExtensionInterfaceVariantHashCompare gdextension_interface_variant_hash_compare;
+extern "C" GDExtensionInterfaceVariantBooleanize gdextension_interface_variant_booleanize;
+extern "C" GDExtensionInterfaceVariantDuplicate gdextension_interface_variant_duplicate;
+extern "C" GDExtensionInterfaceVariantStringify gdextension_interface_variant_stringify;
+extern "C" GDExtensionInterfaceVariantGetType gdextension_interface_variant_get_type;
+extern "C" GDExtensionInterfaceVariantHasMethod gdextension_interface_variant_has_method;
+extern "C" GDExtensionInterfaceVariantHasMember gdextension_interface_variant_has_member;
+extern "C" GDExtensionInterfaceVariantHasKey gdextension_interface_variant_has_key;
+extern "C" GDExtensionInterfaceVariantGetTypeName gdextension_interface_variant_get_type_name;
+extern "C" GDExtensionInterfaceVariantCanConvert gdextension_interface_variant_can_convert;
+extern "C" GDExtensionInterfaceVariantCanConvertStrict gdextension_interface_variant_can_convert_strict;
+extern "C" GDExtensionInterfaceGetVariantFromTypeConstructor gdextension_interface_get_variant_from_type_constructor;
+extern "C" GDExtensionInterfaceGetVariantToTypeConstructor gdextension_interface_get_variant_to_type_constructor;
+extern "C" GDExtensionInterfaceVariantGetPtrOperatorEvaluator gdextension_interface_variant_get_ptr_operator_evaluator;
+extern "C" GDExtensionInterfaceVariantGetPtrBuiltinMethod gdextension_interface_variant_get_ptr_builtin_method;
+extern "C" GDExtensionInterfaceVariantGetPtrConstructor gdextension_interface_variant_get_ptr_constructor;
+extern "C" GDExtensionInterfaceVariantGetPtrDestructor gdextension_interface_variant_get_ptr_destructor;
+extern "C" GDExtensionInterfaceVariantConstruct gdextension_interface_variant_construct;
+extern "C" GDExtensionInterfaceVariantGetPtrSetter gdextension_interface_variant_get_ptr_setter;
+extern "C" GDExtensionInterfaceVariantGetPtrGetter gdextension_interface_variant_get_ptr_getter;
+extern "C" GDExtensionInterfaceVariantGetPtrIndexedSetter gdextension_interface_variant_get_ptr_indexed_setter;
+extern "C" GDExtensionInterfaceVariantGetPtrIndexedGetter gdextension_interface_variant_get_ptr_indexed_getter;
+extern "C" GDExtensionInterfaceVariantGetPtrKeyedSetter gdextension_interface_variant_get_ptr_keyed_setter;
+extern "C" GDExtensionInterfaceVariantGetPtrKeyedGetter gdextension_interface_variant_get_ptr_keyed_getter;
+extern "C" GDExtensionInterfaceVariantGetPtrKeyedChecker gdextension_interface_variant_get_ptr_keyed_checker;
+extern "C" GDExtensionInterfaceVariantGetConstantValue gdextension_interface_variant_get_constant_value;
+extern "C" GDExtensionInterfaceVariantGetPtrUtilityFunction gdextension_interface_variant_get_ptr_utility_function;
+extern "C" GDExtensionInterfaceStringNewWithLatin1Chars gdextension_interface_string_new_with_latin1_chars;
+extern "C" GDExtensionInterfaceStringNewWithUtf8Chars gdextension_interface_string_new_with_utf8_chars;
+extern "C" GDExtensionInterfaceStringNewWithUtf16Chars gdextension_interface_string_new_with_utf16_chars;
+extern "C" GDExtensionInterfaceStringNewWithUtf32Chars gdextension_interface_string_new_with_utf32_chars;
+extern "C" GDExtensionInterfaceStringNewWithWideChars gdextension_interface_string_new_with_wide_chars;
+extern "C" GDExtensionInterfaceStringNewWithLatin1CharsAndLen gdextension_interface_string_new_with_latin1_chars_and_len;
+extern "C" GDExtensionInterfaceStringNewWithUtf8CharsAndLen gdextension_interface_string_new_with_utf8_chars_and_len;
+extern "C" GDExtensionInterfaceStringNewWithUtf8CharsAndLen2 gdextension_interface_string_new_with_utf8_chars_and_len2;
+extern "C" GDExtensionInterfaceStringNewWithUtf16CharsAndLen gdextension_interface_string_new_with_utf16_chars_and_len;
+extern "C" GDExtensionInterfaceStringNewWithUtf16CharsAndLen2 gdextension_interface_string_new_with_utf16_chars_and_len2;
+extern "C" GDExtensionInterfaceStringNewWithUtf32CharsAndLen gdextension_interface_string_new_with_utf32_chars_and_len;
+extern "C" GDExtensionInterfaceStringNewWithWideCharsAndLen gdextension_interface_string_new_with_wide_chars_and_len;
+extern "C" GDExtensionInterfaceStringToLatin1Chars gdextension_interface_string_to_latin1_chars;
+extern "C" GDExtensionInterfaceStringToUtf8Chars gdextension_interface_string_to_utf8_chars;
+extern "C" GDExtensionInterfaceStringToUtf16Chars gdextension_interface_string_to_utf16_chars;
+extern "C" GDExtensionInterfaceStringToUtf32Chars gdextension_interface_string_to_utf32_chars;
+extern "C" GDExtensionInterfaceStringToWideChars gdextension_interface_string_to_wide_chars;
+extern "C" GDExtensionInterfaceStringOperatorIndex gdextension_interface_string_operator_index;
+extern "C" GDExtensionInterfaceStringOperatorIndexConst gdextension_interface_string_operator_index_const;
+extern "C" GDExtensionInterfaceStringOperatorPlusEqString gdextension_interface_string_operator_plus_eq_string;
+extern "C" GDExtensionInterfaceStringOperatorPlusEqChar gdextension_interface_string_operator_plus_eq_char;
+extern "C" GDExtensionInterfaceStringOperatorPlusEqCstr gdextension_interface_string_operator_plus_eq_cstr;
+extern "C" GDExtensionInterfaceStringOperatorPlusEqWcstr gdextension_interface_string_operator_plus_eq_wcstr;
+extern "C" GDExtensionInterfaceStringOperatorPlusEqC32str gdextension_interface_string_operator_plus_eq_c32str;
+extern "C" GDExtensionInterfaceStringResize gdextension_interface_string_resize;
+extern "C" GDExtensionInterfaceStringNameNewWithLatin1Chars gdextension_interface_string_name_new_with_latin1_chars;
+extern "C" GDExtensionInterfaceXmlParserOpenBuffer gdextension_interface_xml_parser_open_buffer;
+extern "C" GDExtensionInterfaceFileAccessStoreBuffer gdextension_interface_file_access_store_buffer;
+extern "C" GDExtensionInterfaceFileAccessGetBuffer gdextension_interface_file_access_get_buffer;
+extern "C" GDExtensionInterfaceWorkerThreadPoolAddNativeGroupTask gdextension_interface_worker_thread_pool_add_native_group_task;
+extern "C" GDExtensionInterfaceWorkerThreadPoolAddNativeTask gdextension_interface_worker_thread_pool_add_native_task;
+extern "C" GDExtensionInterfacePackedByteArrayOperatorIndex gdextension_interface_packed_byte_array_operator_index;
+extern "C" GDExtensionInterfacePackedByteArrayOperatorIndexConst gdextension_interface_packed_byte_array_operator_index_const;
+extern "C" GDExtensionInterfacePackedColorArrayOperatorIndex gdextension_interface_packed_color_array_operator_index;
+extern "C" GDExtensionInterfacePackedColorArrayOperatorIndexConst gdextension_interface_packed_color_array_operator_index_const;
+extern "C" GDExtensionInterfacePackedFloat32ArrayOperatorIndex gdextension_interface_packed_float32_array_operator_index;
+extern "C" GDExtensionInterfacePackedFloat32ArrayOperatorIndexConst gdextension_interface_packed_float32_array_operator_index_const;
+extern "C" GDExtensionInterfacePackedFloat64ArrayOperatorIndex gdextension_interface_packed_float64_array_operator_index;
+extern "C" GDExtensionInterfacePackedFloat64ArrayOperatorIndexConst gdextension_interface_packed_float64_array_operator_index_const;
+extern "C" GDExtensionInterfacePackedInt32ArrayOperatorIndex gdextension_interface_packed_int32_array_operator_index;
+extern "C" GDExtensionInterfacePackedInt32ArrayOperatorIndexConst gdextension_interface_packed_int32_array_operator_index_const;
+extern "C" GDExtensionInterfacePackedInt64ArrayOperatorIndex gdextension_interface_packed_int64_array_operator_index;
+extern "C" GDExtensionInterfacePackedInt64ArrayOperatorIndexConst gdextension_interface_packed_int64_array_operator_index_const;
+extern "C" GDExtensionInterfacePackedStringArrayOperatorIndex gdextension_interface_packed_string_array_operator_index;
+extern "C" GDExtensionInterfacePackedStringArrayOperatorIndexConst gdextension_interface_packed_string_array_operator_index_const;
+extern "C" GDExtensionInterfacePackedVector2ArrayOperatorIndex gdextension_interface_packed_vector2_array_operator_index;
+extern "C" GDExtensionInterfacePackedVector2ArrayOperatorIndexConst gdextension_interface_packed_vector2_array_operator_index_const;
+extern "C" GDExtensionInterfacePackedVector3ArrayOperatorIndex gdextension_interface_packed_vector3_array_operator_index;
+extern "C" GDExtensionInterfacePackedVector3ArrayOperatorIndexConst gdextension_interface_packed_vector3_array_operator_index_const;
+extern "C" GDExtensionInterfacePackedVector4ArrayOperatorIndex gdextension_interface_packed_vector4_array_operator_index;
+extern "C" GDExtensionInterfacePackedVector4ArrayOperatorIndexConst gdextension_interface_packed_vector4_array_operator_index_const;
+extern "C" GDExtensionInterfaceArrayOperatorIndex gdextension_interface_array_operator_index;
+extern "C" GDExtensionInterfaceArrayOperatorIndexConst gdextension_interface_array_operator_index_const;
+extern "C" GDExtensionInterfaceArrayRef gdextension_interface_array_ref;
+extern "C" GDExtensionInterfaceArraySetTyped gdextension_interface_array_set_typed;
+extern "C" GDExtensionInterfaceDictionaryOperatorIndex gdextension_interface_dictionary_operator_index;
+extern "C" GDExtensionInterfaceDictionaryOperatorIndexConst gdextension_interface_dictionary_operator_index_const;
+extern "C" GDExtensionInterfaceObjectMethodBindCall gdextension_interface_object_method_bind_call;
+extern "C" GDExtensionInterfaceObjectMethodBindPtrcall gdextension_interface_object_method_bind_ptrcall;
+extern "C" GDExtensionInterfaceObjectDestroy gdextension_interface_object_destroy;
+extern "C" GDExtensionInterfaceGlobalGetSingleton gdextension_interface_global_get_singleton;
+extern "C" GDExtensionInterfaceObjectGetInstanceBinding gdextension_interface_object_get_instance_binding;
+extern "C" GDExtensionInterfaceObjectSetInstanceBinding gdextension_interface_object_set_instance_binding;
+extern "C" GDExtensionInterfaceObjectFreeInstanceBinding gdextension_interface_object_free_instance_binding;
+extern "C" GDExtensionInterfaceObjectSetInstance gdextension_interface_object_set_instance;
+extern "C" GDExtensionInterfaceObjectGetClassName gdextension_interface_object_get_class_name;
+extern "C" GDExtensionInterfaceObjectCastTo gdextension_interface_object_cast_to;
+extern "C" GDExtensionInterfaceObjectGetInstanceFromId gdextension_interface_object_get_instance_from_id;
+extern "C" GDExtensionInterfaceObjectGetInstanceId gdextension_interface_object_get_instance_id;
+extern "C" GDExtensionInterfaceObjectHasScriptMethod gdextension_interface_object_has_script_method;
+extern "C" GDExtensionInterfaceObjectCallScriptMethod gdextension_interface_object_call_script_method;
+extern "C" GDExtensionInterfaceCallableCustomCreate2 gdextension_interface_callable_custom_create2;
+extern "C" GDExtensionInterfaceCallableCustomGetUserData gdextension_interface_callable_custom_get_userdata;
+extern "C" GDExtensionInterfaceRefGetObject gdextension_interface_ref_get_object;
+extern "C" GDExtensionInterfaceRefSetObject gdextension_interface_ref_set_object;
+extern "C" GDExtensionInterfaceScriptInstanceCreate3 gdextension_interface_script_instance_create3;
+extern "C" GDExtensionInterfacePlaceHolderScriptInstanceCreate gdextension_interface_placeholder_script_instance_create;
+extern "C" GDExtensionInterfacePlaceHolderScriptInstanceUpdate gdextension_interface_placeholder_script_instance_update;
+extern "C" GDExtensionInterfaceClassdbConstructObject gdextension_interface_classdb_construct_object;
+extern "C" GDExtensionInterfaceClassdbGetMethodBind gdextension_interface_classdb_get_method_bind;
+extern "C" GDExtensionInterfaceClassdbGetClassTag gdextension_interface_classdb_get_class_tag;
+extern "C" GDExtensionInterfaceClassdbRegisterExtensionClass3 gdextension_interface_classdb_register_extension_class3;
+extern "C" GDExtensionInterfaceClassdbRegisterExtensionClassMethod gdextension_interface_classdb_register_extension_class_method;
+extern "C" GDExtensionInterfaceClassdbRegisterExtensionClassVirtualMethod gdextension_interface_classdb_register_extension_class_virtual_method;
+extern "C" GDExtensionInterfaceClassdbRegisterExtensionClassIntegerConstant gdextension_interface_classdb_register_extension_class_integer_constant;
+extern "C" GDExtensionInterfaceClassdbRegisterExtensionClassProperty gdextension_interface_classdb_register_extension_class_property;
+extern "C" GDExtensionInterfaceClassdbRegisterExtensionClassPropertyIndexed gdextension_interface_classdb_register_extension_class_property_indexed;
+extern "C" GDExtensionInterfaceClassdbRegisterExtensionClassPropertyGroup gdextension_interface_classdb_register_extension_class_property_group;
+extern "C" GDExtensionInterfaceClassdbRegisterExtensionClassPropertySubgroup gdextension_interface_classdb_register_extension_class_property_subgroup;
+extern "C" GDExtensionInterfaceClassdbRegisterExtensionClassSignal gdextension_interface_classdb_register_extension_class_signal;
+extern "C" GDExtensionInterfaceClassdbUnregisterExtensionClass gdextension_interface_classdb_unregister_extension_class;
+extern "C" GDExtensionInterfaceGetLibraryPath gdextension_interface_get_library_path;
+extern "C" GDExtensionInterfaceEditorAddPlugin gdextension_interface_editor_add_plugin;
+extern "C" GDExtensionInterfaceEditorRemovePlugin gdextension_interface_editor_remove_plugin;
+extern "C" GDExtensionsInterfaceEditorHelpLoadXmlFromUtf8Chars gdextension_interface_editor_help_load_xml_from_utf8_chars;
+extern "C" GDExtensionsInterfaceEditorHelpLoadXmlFromUtf8CharsAndLen gdextension_interface_editor_help_load_xml_from_utf8_chars_and_len;
+extern "C" GDExtensionInterfaceImagePtrw gdextension_interface_image_ptrw;
+extern "C" GDExtensionInterfaceImagePtr gdextension_interface_image_ptr;
+
+class DocDataRegistration {
+public:
+	DocDataRegistration(const char *p_hash, int p_uncompressed_size, int p_compressed_size, const unsigned char *p_data);
+};
+
 } // namespace internal
 
 enum ModuleInitializationLevel {
 	MODULE_INITIALIZATION_LEVEL_CORE = GDEXTENSION_INITIALIZATION_CORE,
 	MODULE_INITIALIZATION_LEVEL_SERVERS = GDEXTENSION_INITIALIZATION_SERVERS,
 	MODULE_INITIALIZATION_LEVEL_SCENE = GDEXTENSION_INITIALIZATION_SCENE,
-	MODULE_INITIALIZATION_LEVEL_EDITOR = GDEXTENSION_INITIALIZATION_EDITOR
+	MODULE_INITIALIZATION_LEVEL_EDITOR = GDEXTENSION_INITIALIZATION_EDITOR,
+	MODULE_INITIALIZATION_LEVEL_MAX
 };
 
 class GDExtensionBinding {
 public:
 	using Callback = void (*)(ModuleInitializationLevel p_level);
 
-	static Callback init_callback;
-	static Callback terminate_callback;
-	static GDExtensionInitializationLevel minimum_initialization_level;
-	static GDExtensionBool init(const GDExtensionInterface *p_interface, GDExtensionClassLibraryPtr p_library, GDExtensionInitialization *r_initialization);
+	struct InitData {
+		GDExtensionInitializationLevel minimum_initialization_level = GDEXTENSION_INITIALIZATION_CORE;
+		Callback init_callback = nullptr;
+		Callback terminate_callback = nullptr;
+	};
 
-public:
-	static void initialize_level(void *userdata, GDExtensionInitializationLevel p_level);
-	static void deinitialize_level(void *userdata, GDExtensionInitializationLevel p_level);
-
-	class InitObject {
-		const GDExtensionInterface *gde_interface;
-		GDExtensionClassLibraryPtr library;
-		GDExtensionInitialization *initialization;
+	class InitDataList {
+		int data_count = 0;
+		int data_capacity = 0;
+		InitData **data = nullptr;
 
 	public:
-		InitObject(const GDExtensionInterface *p_interface, GDExtensionClassLibraryPtr p_library, GDExtensionInitialization *r_initialization) :
-				gde_interface(p_interface),
-				library(p_library),
-				initialization(r_initialization) {}
+		void add(InitData *p_cb);
+		~InitDataList();
+	};
+
+	static bool api_initialized;
+	static int level_initialized[MODULE_INITIALIZATION_LEVEL_MAX];
+	static InitDataList initdata;
+	static GDExtensionBool init(GDExtensionInterfaceGetProcAddress p_get_proc_address, GDExtensionClassLibraryPtr p_library, InitData *p_init_data, GDExtensionInitialization *r_initialization);
+
+public:
+	static void initialize_level(void *p_userdata, GDExtensionInitializationLevel p_level);
+	static void deinitialize_level(void *p_userdata, GDExtensionInitializationLevel p_level);
+
+	class InitObject {
+		GDExtensionInterfaceGetProcAddress get_proc_address;
+		GDExtensionClassLibraryPtr library;
+		GDExtensionInitialization *initialization;
+		mutable InitData *init_data = nullptr;
+
+	public:
+		InitObject(GDExtensionInterfaceGetProcAddress p_get_proc_address, GDExtensionClassLibraryPtr p_library, GDExtensionInitialization *r_initialization);
 
 		void register_initializer(Callback p_init) const;
 		void register_terminator(Callback p_init) const;

include/godot_cpp/templates/cowdata.hpp

@@ -32,108 +32,160 @@
 #define GODOT_COWDATA_HPP
 
 #include <godot_cpp/classes/global_constants.hpp>
-#include <godot_cpp/core/class_db.hpp>
 #include <godot_cpp/core/error_macros.hpp>
 #include <godot_cpp/core/math.hpp>
 #include <godot_cpp/core/memory.hpp>
 #include <godot_cpp/templates/safe_refcount.hpp>
 
 #include <cstring>
+#include <new>
+#include <type_traits>
 
 namespace godot {
 
-template <class T>
+template <typename T>
 class Vector;
 
-template <class T, class V>
+template <typename T, typename V>
 class VMap;
 
+template <typename T>
+class CharStringT;
+
+static_assert(std::is_trivially_destructible_v<std::atomic<uint64_t>>);
+
 // Silence a false positive warning (see GH-52119).
 #if defined(__GNUC__) && !defined(__clang__)
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wplacement-new"
 #endif
 
-template <class T>
+template <typename T>
 class CowData {
-	template <class TV>
+	template <typename TV>
 	friend class Vector;
 
-	template <class TV, class VV>
+	template <typename TV, typename VV>
 	friend class VMap;
 
+	template <typename TS>
+	friend class CharStringT;
+
+public:
+	typedef int64_t Size;
+	typedef uint64_t USize;
+	static constexpr USize MAX_INT = INT64_MAX;
+
 private:
+	// Function to find the next power of 2 to an integer.
+	static _FORCE_INLINE_ USize next_po2(USize x) {
+		if (x == 0) {
+			return 0;
+		}
+
+		--x;
+		x |= x >> 1;
+		x |= x >> 2;
+		x |= x >> 4;
+		x |= x >> 8;
+		x |= x >> 16;
+		if (sizeof(USize) == 8) {
+			x |= x >> 32;
+		}
+
+		return ++x;
+	}
+
+	// Alignment:  ↓ max_align_t           ↓ USize          ↓ max_align_t
+	//             ┌────────────────────┬──┬─────────────┬──┬───────────...
+	//             │ SafeNumeric<USize> │░░│ USize       │░░│ T[]
+	//             │ ref. count         │░░│ data size   │░░│ data
+	//             └────────────────────┴──┴─────────────┴──┴───────────...
+	// Offset:     ↑ REF_COUNT_OFFSET      ↑ SIZE_OFFSET    ↑ DATA_OFFSET
+
+	static constexpr size_t REF_COUNT_OFFSET = 0;
+	static constexpr size_t SIZE_OFFSET = ((REF_COUNT_OFFSET + sizeof(SafeNumeric<USize>)) % alignof(USize) == 0) ? (REF_COUNT_OFFSET + sizeof(SafeNumeric<USize>)) : ((REF_COUNT_OFFSET + sizeof(SafeNumeric<USize>)) + alignof(USize) - ((REF_COUNT_OFFSET + sizeof(SafeNumeric<USize>)) % alignof(USize)));
+	static constexpr size_t DATA_OFFSET = ((SIZE_OFFSET + sizeof(USize)) % alignof(max_align_t) == 0) ? (SIZE_OFFSET + sizeof(USize)) : ((SIZE_OFFSET + sizeof(USize)) + alignof(max_align_t) - ((SIZE_OFFSET + sizeof(USize)) % alignof(max_align_t)));
+
 	mutable T *_ptr = nullptr;
 
 	// internal helpers
 
-	_FORCE_INLINE_ SafeNumeric<uint32_t> *_get_refcount() const {
+	static _FORCE_INLINE_ SafeNumeric<USize> *_get_refcount_ptr(uint8_t *p_ptr) {
+		return (SafeNumeric<USize> *)(p_ptr + REF_COUNT_OFFSET);
+	}
+
+	static _FORCE_INLINE_ USize *_get_size_ptr(uint8_t *p_ptr) {
+		return (USize *)(p_ptr + SIZE_OFFSET);
+	}
+
+	static _FORCE_INLINE_ T *_get_data_ptr(uint8_t *p_ptr) {
+		return (T *)(p_ptr + DATA_OFFSET);
+	}
+
+	_FORCE_INLINE_ SafeNumeric<USize> *_get_refcount() const {
 		if (!_ptr) {
 			return nullptr;
 		}
 
-		return reinterpret_cast<SafeNumeric<uint32_t> *>(_ptr) - 2;
+		return (SafeNumeric<USize> *)((uint8_t *)_ptr - DATA_OFFSET + REF_COUNT_OFFSET);
 	}
 
-	_FORCE_INLINE_ uint32_t *_get_size() const {
+	_FORCE_INLINE_ USize *_get_size() const {
 		if (!_ptr) {
 			return nullptr;
 		}
 
-		return reinterpret_cast<uint32_t *>(_ptr) - 1;
+		return (USize *)((uint8_t *)_ptr - DATA_OFFSET + SIZE_OFFSET);
 	}
 
-	_FORCE_INLINE_ T *_get_data() const {
-		if (!_ptr) {
-			return nullptr;
+	_FORCE_INLINE_ USize _get_alloc_size(USize p_elements) const {
+		return next_po2(p_elements * sizeof(T));
+	}
+
+	_FORCE_INLINE_ bool _get_alloc_size_checked(USize p_elements, USize *out) const {
+		if (unlikely(p_elements == 0)) {
+			*out = 0;
+			return true;
 		}
-		return reinterpret_cast<T *>(_ptr);
-	}
-
-	_FORCE_INLINE_ size_t _get_alloc_size(size_t p_elements) const {
-		return next_power_of_2(p_elements * sizeof(T));
-	}
-
-	_FORCE_INLINE_ bool _get_alloc_size_checked(size_t p_elements, size_t *out) const {
-#if defined(__GNUC__)
-		size_t o;
-		size_t p;
+#if defined(__GNUC__) && defined(IS_32_BIT)
+		USize o;
+		USize p;
 		if (__builtin_mul_overflow(p_elements, sizeof(T), &o)) {
 			*out = 0;
 			return false;
 		}
-		*out = next_power_of_2(o);
-		if (__builtin_add_overflow(o, static_cast<size_t>(32), &p)) {
+		*out = next_po2(o);
+		if (__builtin_add_overflow(o, static_cast<USize>(32), &p)) {
 			return false; // No longer allocated here.
 		}
-		return true;
 #else
 		// Speed is more important than correctness here, do the operations unchecked
 		// and hope for the best.
 		*out = _get_alloc_size(p_elements);
-		return true;
 #endif
+		return *out;
 	}
 
 	void _unref(void *p_data);
 	void _ref(const CowData *p_from);
 	void _ref(const CowData &p_from);
-	uint32_t _copy_on_write();
+	USize _copy_on_write();
 
 public:
 	void operator=(const CowData<T> &p_from) { _ref(p_from); }
 
 	_FORCE_INLINE_ T *ptrw() {
 		_copy_on_write();
-		return (T *)_get_data();
+		return _ptr;
 	}
 
 	_FORCE_INLINE_ const T *ptr() const {
-		return _get_data();
+		return _ptr;
 	}
 
-	_FORCE_INLINE_ int size() const {
-		uint32_t *size = (uint32_t *)_get_size();
+	_FORCE_INLINE_ Size size() const {
+		USize *size = (USize *)_get_size();
 		if (size) {
 			return *size;
 		} else {
@@ -144,41 +196,42 @@ public:
 	_FORCE_INLINE_ void clear() { resize(0); }
 	_FORCE_INLINE_ bool is_empty() const { return _ptr == nullptr; }
 
-	_FORCE_INLINE_ void set(int p_index, const T &p_elem) {
+	_FORCE_INLINE_ void set(Size p_index, const T &p_elem) {
 		ERR_FAIL_INDEX(p_index, size());
 		_copy_on_write();
-		_get_data()[p_index] = p_elem;
+		_ptr[p_index] = p_elem;
 	}
 
-	_FORCE_INLINE_ T &get_m(int p_index) {
+	_FORCE_INLINE_ T &get_m(Size p_index) {
 		CRASH_BAD_INDEX(p_index, size());
 		_copy_on_write();
-		return _get_data()[p_index];
+		return _ptr[p_index];
 	}
 
-	_FORCE_INLINE_ const T &get(int p_index) const {
+	_FORCE_INLINE_ const T &get(Size p_index) const {
 		CRASH_BAD_INDEX(p_index, size());
 
-		return _get_data()[p_index];
+		return _ptr[p_index];
 	}
 
-	Error resize(int p_size);
+	template <bool p_ensure_zero = false>
+	Error resize(Size p_size);
 
-	_FORCE_INLINE_ void remove_at(int p_index) {
+	_FORCE_INLINE_ void remove_at(Size p_index) {
 		ERR_FAIL_INDEX(p_index, size());
 		T *p = ptrw();
-		int len = size();
-		for (int i = p_index; i < len - 1; i++) {
+		Size len = size();
+		for (Size i = p_index; i < len - 1; i++) {
 			p[i] = p[i + 1];
 		}
 
 		resize(len - 1);
 	}
 
-	Error insert(int p_pos, const T &p_val) {
+	Error insert(Size p_pos, const T &p_val) {
 		ERR_FAIL_INDEX_V(p_pos, size() + 1, ERR_INVALID_PARAMETER);
 		resize(size() + 1);
-		for (int i = (size() - 1); i > p_pos; i--) {
+		for (Size i = (size() - 1); i > p_pos; i--) {
 			set(i, get(i - 1));
 		}
 		set(p_pos, p_val);
@@ -186,83 +239,88 @@ public:
 		return OK;
 	}
 
-	int find(const T &p_val, int p_from = 0) const;
+	Size find(const T &p_val, Size p_from = 0) const;
+	Size rfind(const T &p_val, Size p_from = -1) const;
+	Size count(const T &p_val) const;
 
 	_FORCE_INLINE_ CowData() {}
 	_FORCE_INLINE_ ~CowData();
-	_FORCE_INLINE_ CowData(CowData<T> &p_from) { _ref(p_from); }
+	_FORCE_INLINE_ CowData(CowData<T> &p_from) { _ref(p_from); };
 };
 
-template <class T>
+template <typename T>
 void CowData<T>::_unref(void *p_data) {
 	if (!p_data) {
 		return;
 	}
 
-	SafeNumeric<uint32_t> *refc = _get_refcount();
+	SafeNumeric<USize> *refc = _get_refcount();
 
 	if (refc->decrement() > 0) {
 		return; // still in use
 	}
 	// clean up
 
-	if (!__has_trivial_destructor(T)) {
-		uint32_t *count = _get_size();
+	if constexpr (!std::is_trivially_destructible_v<T>) {
+		USize *count = _get_size();
 		T *data = (T *)(count + 1);
 
-		for (uint32_t i = 0; i < *count; ++i) {
+		for (USize i = 0; i < *count; ++i) {
 			// call destructors
 			data[i].~T();
 		}
 	}
 
 	// free mem
-	Memory::free_static((uint8_t *)p_data, true);
+	Memory::free_static(((uint8_t *)p_data) - DATA_OFFSET, false);
 }
 
-template <class T>
-uint32_t CowData<T>::_copy_on_write() {
+template <typename T>
+typename CowData<T>::USize CowData<T>::_copy_on_write() {
 	if (!_ptr) {
 		return 0;
 	}
 
-	SafeNumeric<uint32_t> *refc = _get_refcount();
+	SafeNumeric<USize> *refc = _get_refcount();
 
-	uint32_t rc = refc->get();
+	USize rc = refc->get();
 	if (unlikely(rc > 1)) {
 		/* in use by more than me */
-		uint32_t current_size = *_get_size();
+		USize current_size = *_get_size();
 
-		uint32_t *mem_new = (uint32_t *)Memory::alloc_static(_get_alloc_size(current_size), true);
+		uint8_t *mem_new = (uint8_t *)Memory::alloc_static(_get_alloc_size(current_size) + DATA_OFFSET, false);
+		ERR_FAIL_NULL_V(mem_new, 0);
 
-		new (mem_new - 2) SafeNumeric<uint32_t>(1); // refcount
-		*(mem_new - 1) = current_size; // size
+		SafeNumeric<USize> *_refc_ptr = _get_refcount_ptr(mem_new);
+		USize *_size_ptr = _get_size_ptr(mem_new);
+		T *_data_ptr = _get_data_ptr(mem_new);
 
-		T *_data = (T *)(mem_new);
+		new (_refc_ptr) SafeNumeric<USize>(1); //refcount
+		*(_size_ptr) = current_size; //size
 
 		// initialize new elements
-		if (__has_trivial_copy(T)) {
-			memcpy(mem_new, _ptr, current_size * sizeof(T));
-
+		if constexpr (std::is_trivially_copyable_v<T>) {
+			memcpy((uint8_t *)_data_ptr, _ptr, current_size * sizeof(T));
 		} else {
-			for (uint32_t i = 0; i < current_size; i++) {
-				memnew_placement(&_data[i], T(_get_data()[i]));
+			for (USize i = 0; i < current_size; i++) {
+				memnew_placement(&_data_ptr[i], T(_ptr[i]));
 			}
 		}
 
 		_unref(_ptr);
-		_ptr = _data;
+		_ptr = _data_ptr;
 
 		rc = 1;
 	}
 	return rc;
 }
 
-template <class T>
-Error CowData<T>::resize(int p_size) {
+template <typename T>
+template <bool p_ensure_zero>
+Error CowData<T>::resize(Size p_size) {
 	ERR_FAIL_COND_V(p_size < 0, ERR_INVALID_PARAMETER);
 
-	int current_size = size();
+	Size current_size = size();
 
 	if (p_size == current_size) {
 		return OK;
@@ -276,59 +334,71 @@ Error CowData<T>::resize(int p_size) {
 	}
 
 	// possibly changing size, copy on write
-	uint32_t rc = _copy_on_write();
+	USize rc = _copy_on_write();
 
-	size_t current_alloc_size = _get_alloc_size(current_size);
-	size_t alloc_size;
+	USize current_alloc_size = _get_alloc_size(current_size);
+	USize alloc_size;
 	ERR_FAIL_COND_V(!_get_alloc_size_checked(p_size, &alloc_size), ERR_OUT_OF_MEMORY);
 
 	if (p_size > current_size) {
 		if (alloc_size != current_alloc_size) {
 			if (current_size == 0) {
 				// alloc from scratch
-				uint32_t *ptr = (uint32_t *)Memory::alloc_static(alloc_size, true);
-				ERR_FAIL_COND_V(!ptr, ERR_OUT_OF_MEMORY);
-				*(ptr - 1) = 0; // size, currently none
-				new (ptr - 2) SafeNumeric<uint32_t>(1); // refcount
+				uint8_t *mem_new = (uint8_t *)Memory::alloc_static(alloc_size + DATA_OFFSET, false);
+				ERR_FAIL_NULL_V(mem_new, ERR_OUT_OF_MEMORY);
 
-				_ptr = (T *)ptr;
+				SafeNumeric<USize> *_refc_ptr = _get_refcount_ptr(mem_new);
+				USize *_size_ptr = _get_size_ptr(mem_new);
+				T *_data_ptr = _get_data_ptr(mem_new);
 
+				new (_refc_ptr) SafeNumeric<USize>(1); //refcount
+				*(_size_ptr) = 0; //size, currently none
+
+				_ptr = _data_ptr;
 			} else {
-				uint32_t *_ptrnew = (uint32_t *)Memory::realloc_static(_ptr, alloc_size, true);
-				ERR_FAIL_COND_V(!_ptrnew, ERR_OUT_OF_MEMORY);
-				new (_ptrnew - 2) SafeNumeric<uint32_t>(rc); // refcount
+				uint8_t *mem_new = (uint8_t *)Memory::realloc_static(((uint8_t *)_ptr) - DATA_OFFSET, alloc_size + DATA_OFFSET, false);
+				ERR_FAIL_NULL_V(mem_new, ERR_OUT_OF_MEMORY);
 
-				_ptr = (T *)(_ptrnew);
+				SafeNumeric<USize> *_refc_ptr = _get_refcount_ptr(mem_new);
+				T *_data_ptr = _get_data_ptr(mem_new);
+
+				new (_refc_ptr) SafeNumeric<USize>(rc); //refcount
+
+				_ptr = _data_ptr;
 			}
 		}
 
 		// construct the newly created elements
 
-		if (!__has_trivial_constructor(T)) {
-			T *elems = _get_data();
-
-			for (int i = *_get_size(); i < p_size; i++) {
-				memnew_placement(&elems[i], T);
+		if constexpr (!std::is_trivially_constructible_v<T>) {
+			for (Size i = *_get_size(); i < p_size; i++) {
+				memnew_placement(&_ptr[i], T);
 			}
+		} else if (p_ensure_zero) {
+			memset((void *)(_ptr + current_size), 0, (p_size - current_size) * sizeof(T));
 		}
 
 		*_get_size() = p_size;
 
 	} else if (p_size < current_size) {
-		if (!__has_trivial_destructor(T)) {
+		if constexpr (!std::is_trivially_destructible_v<T>) {
 			// deinitialize no longer needed elements
-			for (uint32_t i = p_size; i < *_get_size(); i++) {
-				T *t = &_get_data()[i];
+			for (USize i = p_size; i < *_get_size(); i++) {
+				T *t = &_ptr[i];
 				t->~T();
 			}
 		}
 
 		if (alloc_size != current_alloc_size) {
-			uint32_t *_ptrnew = (uint32_t *)Memory::realloc_static(_ptr, alloc_size, true);
-			ERR_FAIL_COND_V(!_ptrnew, ERR_OUT_OF_MEMORY);
-			new (_ptrnew - 2) SafeNumeric<uint32_t>(rc); // refcount
+			uint8_t *mem_new = (uint8_t *)Memory::realloc_static(((uint8_t *)_ptr) - DATA_OFFSET, alloc_size + DATA_OFFSET, false);
+			ERR_FAIL_NULL_V(mem_new, ERR_OUT_OF_MEMORY);
 
-			_ptr = (T *)(_ptrnew);
+			SafeNumeric<USize> *_refc_ptr = _get_refcount_ptr(mem_new);
+			T *_data_ptr = _get_data_ptr(mem_new);
+
+			new (_refc_ptr) SafeNumeric<USize>(rc); //refcount
+
+			_ptr = _data_ptr;
 		}
 
 		*_get_size() = p_size;
@@ -337,15 +407,15 @@ Error CowData<T>::resize(int p_size) {
 	return OK;
 }
 
-template <class T>
-int CowData<T>::find(const T &p_val, int p_from) const {
-	int ret = -1;
+template <typename T>
+typename CowData<T>::Size CowData<T>::find(const T &p_val, Size p_from) const {
+	Size ret = -1;
 
 	if (p_from < 0 || size() == 0) {
 		return ret;
 	}
 
-	for (int i = p_from; i < size(); i++) {
+	for (Size i = p_from; i < size(); i++) {
 		if (get(i) == p_val) {
 			ret = i;
 			break;
@@ -355,12 +425,42 @@ int CowData<T>::find(const T &p_val, int p_from) const {
 	return ret;
 }
 
-template <class T>
+template <typename T>
+typename CowData<T>::Size CowData<T>::rfind(const T &p_val, Size p_from) const {
+	const Size s = size();
+
+	if (p_from < 0) {
+		p_from = s + p_from;
+	}
+	if (p_from < 0 || p_from >= s) {
+		p_from = s - 1;
+	}
+
+	for (Size i = p_from; i >= 0; i--) {
+		if (get(i) == p_val) {
+			return i;
+		}
+	}
+	return -1;
+}
+
+template <typename T>
+typename CowData<T>::Size CowData<T>::count(const T &p_val) const {
+	Size amount = 0;
+	for (Size i = 0; i < size(); i++) {
+		if (get(i) == p_val) {
+			amount++;
+		}
+	}
+	return amount;
+}
+
+template <typename T>
 void CowData<T>::_ref(const CowData *p_from) {
 	_ref(*p_from);
 }
 
-template <class T>
+template <typename T>
 void CowData<T>::_ref(const CowData &p_from) {
 	if (_ptr == p_from._ptr) {
 		return; // self assign, do nothing.
@@ -378,7 +478,7 @@ void CowData<T>::_ref(const CowData &p_from) {
 	}
 }
 
-template <class T>
+template <typename T>
 CowData<T>::~CowData() {
 	_unref(_ptr);
 }

include/godot_cpp/templates/hash_map.hpp

@@ -52,7 +52,7 @@ namespace godot {
  * The assignment operator copy the pairs from one map to the other.
  */
 
-template <class TKey, class TValue>
+template <typename TKey, typename TValue>
 struct HashMapElement {
 	HashMapElement *next = nullptr;
 	HashMapElement *prev = nullptr;
@@ -62,10 +62,10 @@ struct HashMapElement {
 			data(p_key, p_value) {}
 };
 
-template <class TKey, class TValue,
-		class Hasher = HashMapHasherDefault,
-		class Comparator = HashMapComparatorDefault<TKey>,
-		class Allocator = DefaultTypedAllocator<HashMapElement<TKey, TValue>>>
+template <typename TKey, typename TValue,
+		typename Hasher = HashMapHasherDefault,
+		typename Comparator = HashMapComparatorDefault<TKey>,
+		typename Allocator = DefaultTypedAllocator<HashMapElement<TKey, TValue>>>
 class HashMap {
 public:
 	const uint32_t MIN_CAPACITY_INDEX = 2; // Use a prime.

include/godot_cpp/templates/hash_set.hpp

@@ -48,9 +48,9 @@ namespace godot {
  *
  */
 
-template <class TKey,
-		class Hasher = HashMapHasherDefault,
-		class Comparator = HashMapComparatorDefault<TKey>>
+template <typename TKey,
+		typename Hasher = HashMapHasherDefault,
+		typename Comparator = HashMapComparatorDefault<TKey>>
 class HashSet {
 public:
 	static constexpr uint32_t MIN_CAPACITY_INDEX = 2; // Use a prime.

include/godot_cpp/templates/hashfuncs.hpp

@@ -253,7 +253,7 @@ static _FORCE_INLINE_ uint32_t hash_djb2_one_float(double p_in, uint32_t p_prev
 	return ((p_prev << 5) + p_prev) + hash_one_uint64(u.i);
 }
 
-template <class T>
+template <typename T>
 static _FORCE_INLINE_ uint32_t hash_make_uint32_t(T p_in) {
 	union {
 		T t;
@@ -286,7 +286,7 @@ static _FORCE_INLINE_ uint64_t hash_djb2_one_64(uint64_t p_in, uint64_t p_prev =
 	return ((p_prev << 5) + p_prev) ^ p_in;
 }
 
-template <class T>
+template <typename T>
 static _FORCE_INLINE_ uint64_t hash_make_uint64_t(T p_in) {
 	union {
 		T t;
@@ -298,15 +298,15 @@ static _FORCE_INLINE_ uint64_t hash_make_uint64_t(T p_in) {
 	return _u._u64;
 }
 
-template <class T>
+template <typename T>
 class Ref;
 
 struct HashMapHasherDefault {
 	// Generic hash function for any type.
-	template <class T>
+	template <typename T>
 	static _FORCE_INLINE_ uint32_t hash(const T *p_pointer) { return hash_one_uint64((uint64_t)p_pointer); }
 
-	template <class T>
+	template <typename T>
 	static _FORCE_INLINE_ uint32_t hash(const Ref<T> &p_ref) { return hash_one_uint64((uint64_t)p_ref.operator->()); }
 
 	static _FORCE_INLINE_ uint32_t hash(const String &p_string) { return p_string.hash(); }

include/godot_cpp/templates/list.hpp

@@ -45,7 +45,7 @@
 
 namespace godot {
 
-template <class T, class A = DefaultAllocator>
+template <typename T, typename A = DefaultAllocator>
 class List {
 	struct _Data;
 
@@ -139,31 +139,6 @@ public:
 
 	typedef T ValueType;
 
-	struct Iterator {
-		_FORCE_INLINE_ T &operator*() const {
-			return E->get();
-		}
-		_FORCE_INLINE_ T *operator->() const { return &E->get(); }
-		_FORCE_INLINE_ Iterator &operator++() {
-			E = E->next();
-			return *this;
-		}
-		_FORCE_INLINE_ Iterator &operator--() {
-			E = E->prev();
-			return *this;
-		}
-
-		_FORCE_INLINE_ bool operator==(const Iterator &b) const { return E == b.E; }
-		_FORCE_INLINE_ bool operator!=(const Iterator &b) const { return E != b.E; }
-
-		Iterator(Element *p_E) { E = p_E; }
-		Iterator() {}
-		Iterator(const Iterator &p_it) { E = p_it.E; }
-
-	private:
-		Element *E = nullptr;
-	};
-
 	struct ConstIterator {
 		_FORCE_INLINE_ const T &operator*() const {
 			return E->get();
@@ -189,6 +164,35 @@ public:
 		const Element *E = nullptr;
 	};
 
+	struct Iterator {
+		_FORCE_INLINE_ T &operator*() const {
+			return E->get();
+		}
+		_FORCE_INLINE_ T *operator->() const { return &E->get(); }
+		_FORCE_INLINE_ Iterator &operator++() {
+			E = E->next();
+			return *this;
+		}
+		_FORCE_INLINE_ Iterator &operator--() {
+			E = E->prev();
+			return *this;
+		}
+
+		_FORCE_INLINE_ bool operator==(const Iterator &b) const { return E == b.E; }
+		_FORCE_INLINE_ bool operator!=(const Iterator &b) const { return E != b.E; }
+
+		Iterator(Element *p_E) { E = p_E; }
+		Iterator() {}
+		Iterator(const Iterator &p_it) { E = p_it.E; }
+
+		operator ConstIterator() const {
+			return ConstIterator(E);
+		}
+
+	private:
+		Element *E = nullptr;
+	};
+
 	_FORCE_INLINE_ Iterator begin() {
 		return Iterator(front());
 	}
@@ -221,7 +225,7 @@ private:
 		int size_cache = 0;
 
 		bool erase(const Element *p_I) {
-			ERR_FAIL_COND_V(!p_I, false);
+			ERR_FAIL_NULL_V(p_I, false);
 			ERR_FAIL_COND_V(p_I->data != this, false);
 
 			if (first == p_I) {
@@ -410,7 +414,7 @@ public:
 	/**
 	 * find an element in the list,
 	 */
-	template <class T_v>
+	template <typename T_v>
 	Element *find(const T_v &p_val) {
 		Element *it = front();
 		while (it) {
@@ -519,7 +523,14 @@ public:
 		}
 	}
 
-	T &operator[](int p_index) {
+	// Index operator, kept for compatibility.
+	_FORCE_INLINE_ T &operator[](int p_index) {
+		return get(p_index);
+	}
+
+	// Random access to elements, use with care,
+	// do not use for iteration.
+	T &get(int p_index) {
 		CRASH_BAD_INDEX(p_index, size());
 
 		Element *I = front();
@@ -532,7 +543,14 @@ public:
 		return I->get();
 	}
 
-	const T &operator[](int p_index) const {
+	// Index operator, kept for compatibility.
+	_FORCE_INLINE_ const T &operator[](int p_index) const {
+		return get(p_index);
+	}
+
+	// Random access to elements, use with care,
+	// do not use for iteration.
+	const T &get(int p_index) const {
 		CRASH_BAD_INDEX(p_index, size());
 
 		const Element *I = front();
@@ -646,7 +664,7 @@ public:
 		sort_custom<Comparator<T>>();
 	}
 
-	template <class C>
+	template <typename C>
 	void sort_custom_inplace() {
 		if (size() < 2) {
 			return;
@@ -693,7 +711,7 @@ public:
 		_data->last = to;
 	}
 
-	template <class C>
+	template <typename C>
 	struct AuxiliaryComparator {
 		C compare;
 		_FORCE_INLINE_ bool operator()(const Element *a, const Element *b) const {
@@ -701,7 +719,7 @@ public:
 		}
 	};
 
-	template <class C>
+	template <typename C>
 	void sort_custom() {
 		// this version uses auxiliary memory for speed.
 		// if you don't want to use auxiliary memory, use the in_place version

include/godot_cpp/templates/local_vector.hpp

@@ -31,10 +31,10 @@
 #ifndef GODOT_LOCAL_VECTOR_HPP
 #define GODOT_LOCAL_VECTOR_HPP
 
-#include "godot_cpp/core/error_macros.hpp"
-#include "godot_cpp/core/memory.hpp"
-#include "godot_cpp/templates/sort_array.hpp"
-#include "godot_cpp/templates/vector.hpp"
+#include <godot_cpp/core/error_macros.hpp>
+#include <godot_cpp/core/memory.hpp>
+#include <godot_cpp/templates/sort_array.hpp>
+#include <godot_cpp/templates/vector.hpp>
 
 #include <initializer_list>
 #include <type_traits>
@@ -43,7 +43,7 @@ namespace godot {
 
 // If tight, it grows strictly as much as needed.
 // Otherwise, it grows exponentially (the default and what you want in most cases).
-template <class T, class U = uint32_t, bool force_trivial = false, bool tight = false>
+template <typename T, typename U = uint32_t, bool force_trivial = false, bool tight = false>
 class LocalVector {
 private:
 	U count = 0;
@@ -257,7 +257,11 @@ public:
 		return -1;
 	}
 
-	template <class C>
+	bool has(const T &p_val) const {
+		return find(p_val) != -1;
+	}
+
+	template <typename C>
 	void sort_custom() {
 		U len = count;
 		if (len == 0) {
@@ -331,7 +335,7 @@ public:
 	}
 };
 
-template <class T, class U = uint32_t, bool force_trivial = false>
+template <typename T, typename U = uint32_t, bool force_trivial = false>
 using TightLocalVector = LocalVector<T, U, force_trivial, true>;
 
 } // namespace godot

include/godot_cpp/templates/pair.hpp

@@ -33,7 +33,7 @@
 
 namespace godot {
 
-template <class F, class S>
+template <typename F, typename S>
 struct Pair {
 	F first;
 	S second;
@@ -49,17 +49,17 @@ struct Pair {
 	}
 };
 
-template <class F, class S>
+template <typename F, typename S>
 bool operator==(const Pair<F, S> &pair, const Pair<F, S> &other) {
 	return (pair.first == other.first) && (pair.second == other.second);
 }
 
-template <class F, class S>
+template <typename F, typename S>
 bool operator!=(const Pair<F, S> &pair, const Pair<F, S> &other) {
 	return (pair.first != other.first) || (pair.second != other.second);
 }
 
-template <class F, class S>
+template <typename F, typename S>
 struct PairSort {
 	bool operator()(const Pair<F, S> &A, const Pair<F, S> &B) const {
 		if (A.first != B.first) {
@@ -69,7 +69,7 @@ struct PairSort {
 	}
 };
 
-template <class K, class V>
+template <typename K, typename V>
 struct KeyValue {
 	const K key;
 	V value;
@@ -85,17 +85,17 @@ struct KeyValue {
 	}
 };
 
-template <class K, class V>
+template <typename K, typename V>
 bool operator==(const KeyValue<K, V> &pair, const KeyValue<K, V> &other) {
 	return (pair.key == other.key) && (pair.value == other.value);
 }
 
-template <class K, class V>
+template <typename K, typename V>
 bool operator!=(const KeyValue<K, V> &pair, const KeyValue<K, V> &other) {
 	return (pair.key != other.key) || (pair.value != other.value);
 }
 
-template <class K, class V>
+template <typename K, typename V>
 struct KeyValueSort {
 	bool operator()(const KeyValue<K, V> &A, const KeyValue<K, V> &B) const {
 		return A.key < B.key;

include/godot_cpp/templates/rb_map.hpp

@@ -40,7 +40,7 @@ namespace godot {
 // based on the very nice implementation of rb-trees by:
 // https://web.archive.org/web/20120507164830/https://web.mit.edu/~emin/www/source_code/red_black_tree/index.html
 
-template <class K, class V, class C = Comparator<K>, class A = DefaultAllocator>
+template <typename K, typename V, typename C = Comparator<K>, typename A = DefaultAllocator>
 class RBMap {
 	enum Color {
 		RED,

include/godot_cpp/templates/rb_set.hpp

@@ -38,7 +38,7 @@
 
 namespace godot {
 
-template <class T, class C = Comparator<T>, class A = DefaultAllocator>
+template <typename T, typename C = Comparator<T>, typename A = DefaultAllocator>
 class RBSet {
 	enum Color {
 		RED,

include/godot_cpp/templates/rid_owner.hpp

@@ -42,7 +42,7 @@
 
 namespace godot {
 
-template <class T, bool THREAD_SAFE = false>
+template <typename T, bool THREAD_SAFE = false>
 class RID_Alloc {
 	T **chunks = nullptr;
 	uint32_t **free_list_chunks = nullptr;
@@ -186,12 +186,12 @@ public:
 	}
 	void initialize_rid(RID p_rid) {
 		T *mem = get_or_null(p_rid, true);
-		ERR_FAIL_COND(!mem);
+		ERR_FAIL_NULL(mem);
 		memnew_placement(mem, T);
 	}
 	void initialize_rid(RID p_rid, const T &p_value) {
 		T *mem = get_or_null(p_rid, true);
-		ERR_FAIL_COND(!mem);
+		ERR_FAIL_NULL(mem);
 		memnew_placement(mem, T(p_value));
 	}
 
@@ -347,7 +347,7 @@ public:
 	}
 };
 
-template <class T, bool THREAD_SAFE = false>
+template <typename T, bool THREAD_SAFE = false>
 class RID_PtrOwner {
 	RID_Alloc<T *, THREAD_SAFE> alloc;
 
@@ -374,7 +374,7 @@ public:
 
 	_FORCE_INLINE_ void replace(const RID &p_rid, T *p_new_ptr) {
 		T **ptr = alloc.get_or_null(p_rid);
-		ERR_FAIL_COND(!ptr);
+		ERR_FAIL_NULL(ptr);
 		*ptr = p_new_ptr;
 	}
 
@@ -406,7 +406,7 @@ public:
 			alloc(p_target_chunk_byte_size) {}
 };
 
-template <class T, bool THREAD_SAFE = false>
+template <typename T, bool THREAD_SAFE = false>
 class RID_Owner {
 	RID_Alloc<T, THREAD_SAFE> alloc;
 

include/godot_cpp/templates/safe_refcount.hpp

@@ -48,7 +48,16 @@ namespace godot {
 //   value and, as an important benefit, you can be sure the value is properly synchronized
 //   even with threads that are already running.
 
-template <class T>
+// These are used in very specific areas of the engine where it's critical that these guarantees are held
+#define SAFE_NUMERIC_TYPE_PUN_GUARANTEES(m_type)                    \
+	static_assert(sizeof(SafeNumeric<m_type>) == sizeof(m_type));   \
+	static_assert(alignof(SafeNumeric<m_type>) == alignof(m_type)); \
+	static_assert(std::is_trivially_destructible<std::atomic<m_type>>::value);
+#define SAFE_FLAG_TYPE_PUN_GUARANTEES                \
+	static_assert(sizeof(SafeFlag) == sizeof(bool)); \
+	static_assert(alignof(SafeFlag) == alignof(bool));
+
+template <typename T>
 class SafeNumeric {
 	std::atomic<T> value;
 
@@ -186,7 +195,7 @@ public:
 
 #else
 
-template <class T>
+template <typename T>
 class SafeNumeric {
 protected:
 	T value;

include/godot_cpp/templates/search_array.hpp

@@ -35,7 +35,7 @@
 
 namespace godot {
 
-template <class T, class Comparator = _DefaultComparator<T>>
+template <typename T, typename Comparator = _DefaultComparator<T>>
 class SearchArray {
 public:
 	Comparator compare;

include/godot_cpp/templates/self_list.hpp

@@ -36,7 +36,7 @@
 
 namespace godot {
 
-template <class T>
+template <typename T>
 class SelfList {
 public:
 	class List {

include/godot_cpp/templates/sort_array.hpp

@@ -41,7 +41,7 @@ namespace godot {
 		break;                                                        \
 	}
 
-template <class T>
+template <typename T>
 struct _DefaultComparator {
 	_FORCE_INLINE_ bool operator()(const T &a, const T &b) const { return (a < b); }
 };
@@ -52,7 +52,7 @@ struct _DefaultComparator {
 #define SORT_ARRAY_VALIDATE_ENABLED false
 #endif
 
-template <class T, class Comparator = _DefaultComparator<T>, bool Validate = SORT_ARRAY_VALIDATE_ENABLED>
+template <typename T, typename Comparator = _DefaultComparator<T>, bool Validate = SORT_ARRAY_VALIDATE_ENABLED>
 class SortArray {
 	enum {
 		INTROSORT_THRESHOLD = 16

include/godot_cpp/templates/thread_work_pool.hpp

@@ -52,7 +52,7 @@ class ThreadWorkPool {
 		virtual ~BaseWork() = default;
 	};
 
-	template <class C, class M, class U>
+	template <typename C, typename M, typename U>
 	struct Work : public BaseWork {
 		C *instance;
 		M method;
@@ -94,9 +94,9 @@ class ThreadWorkPool {
 	}
 
 public:
-	template <class C, class M, class U>
+	template <typename C, typename M, typename U>
 	void begin_work(uint32_t p_elements, C *p_instance, M p_method, U p_userdata) {
-		ERR_FAIL_COND(!threads); // never initialized
+		ERR_FAIL_NULL(threads); // Never initialized.
 		ERR_FAIL_COND(current_work != nullptr);
 
 		index.store(0, std::memory_order_release);
@@ -123,18 +123,18 @@ public:
 	}
 
 	bool is_done_dispatching() const {
-		ERR_FAIL_COND_V(current_work == nullptr, true);
+		ERR_FAIL_NULL_V(current_work, true);
 		return index.load(std::memory_order_acquire) >= current_work->max_elements;
 	}
 
 	uint32_t get_work_index() const {
-		ERR_FAIL_COND_V(current_work == nullptr, 0);
+		ERR_FAIL_NULL_V(current_work, 0);
 		uint32_t idx = index.load(std::memory_order_acquire);
 		return Math::min(idx, current_work->max_elements);
 	}
 
 	void end_work() {
-		ERR_FAIL_COND(current_work == nullptr);
+		ERR_FAIL_NULL(current_work);
 		for (uint32_t i = 0; i < threads_working; i++) {
 			threads[i].completed.wait();
 			threads[i].work = nullptr;
@@ -145,7 +145,7 @@ public:
 		current_work = nullptr;
 	}
 
-	template <class C, class M, class U>
+	template <typename C, typename M, typename U>
 	void do_work(uint32_t p_elements, C *p_instance, M p_method, U p_userdata) {
 		switch (p_elements) {
 			case 0:

include/godot_cpp/templates/vector.hpp

@@ -47,38 +47,42 @@
 
 namespace godot {
 
-template <class T>
+template <typename T>
 class VectorWriteProxy {
 public:
-	_FORCE_INLINE_ T &operator[](int p_index) {
+	_FORCE_INLINE_ T &operator[](typename CowData<T>::Size p_index) {
 		CRASH_BAD_INDEX(p_index, ((Vector<T> *)(this))->_cowdata.size());
 
 		return ((Vector<T> *)(this))->_cowdata.ptrw()[p_index];
 	}
 };
 
-template <class T>
+template <typename T>
 class Vector {
 	friend class VectorWriteProxy<T>;
 
 public:
 	VectorWriteProxy<T> write;
+	typedef typename CowData<T>::Size Size;
 
 private:
 	CowData<T> _cowdata;
 
 public:
 	bool push_back(T p_elem);
-	_FORCE_INLINE_ bool append(const T &p_elem) { return push_back(p_elem); } // alias
+	_FORCE_INLINE_ bool append(const T &p_elem) { return push_back(p_elem); } //alias
 	void fill(T p_elem);
 
-	void remove_at(int p_index) { _cowdata.remove_at(p_index); }
-	void erase(const T &p_val) {
-		int idx = find(p_val);
+	void remove_at(Size p_index) { _cowdata.remove_at(p_index); }
+	_FORCE_INLINE_ bool erase(const T &p_val) {
+		Size idx = find(p_val);
 		if (idx >= 0) {
 			remove_at(idx);
+			return true;
 		}
+		return false;
 	}
+
 	void reverse();
 
 	_FORCE_INLINE_ T *ptrw() { return _cowdata.ptrw(); }
@@ -86,37 +90,45 @@ public:
 	_FORCE_INLINE_ void clear() { resize(0); }
 	_FORCE_INLINE_ bool is_empty() const { return _cowdata.is_empty(); }
 
-	_FORCE_INLINE_ T get(int p_index) { return _cowdata.get(p_index); }
-	_FORCE_INLINE_ const T &get(int p_index) const { return _cowdata.get(p_index); }
-	_FORCE_INLINE_ void set(int p_index, const T &p_elem) { _cowdata.set(p_index, p_elem); }
-	_FORCE_INLINE_ int size() const { return _cowdata.size(); }
-	Error resize(int p_size) { return _cowdata.resize(p_size); }
-	_FORCE_INLINE_ const T &operator[](int p_index) const { return _cowdata.get(p_index); }
-	Error insert(int p_pos, T p_val) { return _cowdata.insert(p_pos, p_val); }
-	int find(const T &p_val, int p_from = 0) const { return _cowdata.find(p_val, p_from); }
+	_FORCE_INLINE_ T get(Size p_index) { return _cowdata.get(p_index); }
+	_FORCE_INLINE_ const T &get(Size p_index) const { return _cowdata.get(p_index); }
+	_FORCE_INLINE_ void set(Size p_index, const T &p_elem) { _cowdata.set(p_index, p_elem); }
+	_FORCE_INLINE_ Size size() const { return _cowdata.size(); }
+	Error resize(Size p_size) { return _cowdata.resize(p_size); }
+	Error resize_zeroed(Size p_size) { return _cowdata.template resize<true>(p_size); }
+	_FORCE_INLINE_ const T &operator[](Size p_index) const { return _cowdata.get(p_index); }
+	Error insert(Size p_pos, T p_val) { return _cowdata.insert(p_pos, p_val); }
+	Size find(const T &p_val, Size p_from = 0) const { return _cowdata.find(p_val, p_from); }
+	Size rfind(const T &p_val, Size p_from = -1) const { return _cowdata.rfind(p_val, p_from); }
+	Size count(const T &p_val) const { return _cowdata.count(p_val); }
 
 	void append_array(Vector<T> p_other);
 
 	_FORCE_INLINE_ bool has(const T &p_val) const { return find(p_val) != -1; }
 
-	template <class C>
-	void sort_custom() {
-		int len = _cowdata.size();
+	void sort() {
+		sort_custom<_DefaultComparator<T>>();
+	}
+
+	template <typename Comparator, bool Validate = SORT_ARRAY_VALIDATE_ENABLED, typename... Args>
+	void sort_custom(Args &&...args) {
+		Size len = _cowdata.size();
 		if (len == 0) {
 			return;
 		}
 
 		T *data = ptrw();
-		SortArray<T, C> sorter;
+		SortArray<T, Comparator, Validate> sorter{ args... };
 		sorter.sort(data, len);
 	}
 
-	void sort() {
-		sort_custom<_DefaultComparator<T>>();
+	Size bsearch(const T &p_value, bool p_before) {
+		return bsearch_custom<_DefaultComparator<T>>(p_value, p_before);
 	}
 
-	int bsearch(const T &p_value, bool p_before) {
-		SearchArray<T> search;
+	template <typename Comparator, typename Value, typename... Args>
+	Size bsearch_custom(const Value &p_value, bool p_before, Args &&...args) {
+		SearchArray<T, Comparator> search{ args... };
 		return search.bisect(ptrw(), size(), p_value, p_before);
 	}
 
@@ -125,7 +137,7 @@ public:
 	}
 
 	void ordered_insert(const T &p_val) {
-		int i;
+		Size i;
 		for (i = 0; i < _cowdata.size(); i++) {
 			if (p_val < operator[](i)) {
 				break;
@@ -140,33 +152,36 @@ public:
 
 	Vector<uint8_t> to_byte_array() const {
 		Vector<uint8_t> ret;
+		if (is_empty()) {
+			return ret;
+		}
 		ret.resize(size() * sizeof(T));
 		memcpy(ret.ptrw(), ptr(), sizeof(T) * size());
 		return ret;
 	}
 
-	Vector<T> slice(int p_begin, int p_end = INT_MAX) const {
+	Vector<T> slice(Size p_begin, Size p_end = CowData<T>::MAX_INT) const {
 		Vector<T> result;
 
-		const int s = size();
+		const Size s = size();
 
-		int begin = Math::clamp(p_begin, -s, s);
+		Size begin = CLAMP(p_begin, -s, s);
 		if (begin < 0) {
 			begin += s;
 		}
-		int end = Math::clamp(p_end, -s, s);
+		Size end = CLAMP(p_end, -s, s);
 		if (end < 0) {
 			end += s;
 		}
 
 		ERR_FAIL_COND_V(begin > end, result);
 
-		int result_size = end - begin;
+		Size result_size = end - begin;
 		result.resize(result_size);
 
 		const T *const r = ptr();
 		T *const w = result.ptrw();
-		for (int i = 0; i < result_size; ++i) {
+		for (Size i = 0; i < result_size; ++i) {
 			w[i] = r[begin + i];
 		}
 
@@ -174,11 +189,11 @@ public:
 	}
 
 	bool operator==(const Vector<T> &p_arr) const {
-		int s = size();
+		Size s = size();
 		if (s != p_arr.size()) {
 			return false;
 		}
-		for (int i = 0; i < s; i++) {
+		for (Size i = 0; i < s; i++) {
 			if (operator[](i) != p_arr[i]) {
 				return false;
 			}
@@ -187,11 +202,11 @@ public:
 	}
 
 	bool operator!=(const Vector<T> &p_arr) const {
-		int s = size();
+		Size s = size();
 		if (s != p_arr.size()) {
 			return true;
 		}
-		for (int i = 0; i < s; i++) {
+		for (Size i = 0; i < s; i++) {
 			if (operator[](i) != p_arr[i]) {
 				return true;
 			}
@@ -268,7 +283,7 @@ public:
 		Error err = _cowdata.resize(p_init.size());
 		ERR_FAIL_COND(err);
 
-		int i = 0;
+		Size i = 0;
 		for (const T &element : p_init) {
 			_cowdata.set(i++, element);
 		}
@@ -278,28 +293,28 @@ public:
 	_FORCE_INLINE_ ~Vector() {}
 };
 
-template <class T>
+template <typename T>
 void Vector<T>::reverse() {
-	for (int i = 0; i < size() / 2; i++) {
+	for (Size i = 0; i < size() / 2; i++) {
 		T *p = ptrw();
 		SWAP(p[i], p[size() - i - 1]);
 	}
 }
 
-template <class T>
+template <typename T>
 void Vector<T>::append_array(Vector<T> p_other) {
-	const int ds = p_other.size();
+	const Size ds = p_other.size();
 	if (ds == 0) {
 		return;
 	}
-	const int bs = size();
+	const Size bs = size();
 	resize(bs + ds);
-	for (int i = 0; i < ds; ++i) {
+	for (Size i = 0; i < ds; ++i) {
 		ptrw()[bs + i] = p_other[i];
 	}
 }
 
-template <class T>
+template <typename T>
 bool Vector<T>::push_back(T p_elem) {
 	Error err = resize(size() + 1);
 	ERR_FAIL_COND_V(err, true);
@@ -308,10 +323,10 @@ bool Vector<T>::push_back(T p_elem) {
 	return false;
 }
 
-template <class T>
+template <typename T>
 void Vector<T>::fill(T p_elem) {
 	T *p = ptrw();
-	for (int i = 0; i < size(); i++) {
+	for (Size i = 0; i < size(); i++) {
 		p[i] = p_elem;
 	}
 }

include/godot_cpp/templates/vmap.hpp

@@ -35,7 +35,7 @@
 
 namespace godot {
 
-template <class T, class V>
+template <typename T, typename V>
 class VMap {
 public:
 	struct Pair {

include/godot_cpp/templates/vset.hpp

@@ -35,7 +35,7 @@
 
 namespace godot {
 
-template <class T>
+template <typename T>
 class VSet {
 	Vector<T> _data;
 

include/godot_cpp/variant/aabb.hpp

@@ -65,6 +65,7 @@ struct _NO_DISCARD_ AABB {
 	bool operator!=(const AABB &p_rval) const;
 
 	bool is_equal_approx(const AABB &p_aabb) const;
+	bool is_finite() const;
 	_FORCE_INLINE_ bool intersects(const AABB &p_aabb) const; /// Both AABBs overlap
 	_FORCE_INLINE_ bool intersects_inclusive(const AABB &p_aabb) const; /// Both AABBs (or their faces) overlap
 	_FORCE_INLINE_ bool encloses(const AABB &p_aabb) const; /// p_aabb is completely inside this
@@ -102,7 +103,7 @@ struct _NO_DISCARD_ AABB {
 	_FORCE_INLINE_ void expand_to(const Vector3 &p_vector); /** expand to contain a point if necessary */
 
 	_FORCE_INLINE_ AABB abs() const {
-		return AABB(Vector3(position.x + MIN(size.x, (real_t)0), position.y + MIN(size.y, (real_t)0), position.z + MIN(size.z, (real_t)0)), size.abs());
+		return AABB(position + size.minf(0), size.abs());
 	}
 
 	Variant intersects_segment_bind(const Vector3 &p_from, const Vector3 &p_to) const;
@@ -201,11 +202,11 @@ inline bool AABB::encloses(const AABB &p_aabb) const {
 
 	return (
 			(src_min.x <= dst_min.x) &&
-			(src_max.x > dst_max.x) &&
+			(src_max.x >= dst_max.x) &&
 			(src_min.y <= dst_min.y) &&
-			(src_max.y > dst_max.y) &&
+			(src_max.y >= dst_max.y) &&
 			(src_min.z <= dst_min.z) &&
-			(src_max.z > dst_max.z));
+			(src_max.z >= dst_max.z));
 }
 
 Vector3 AABB::get_support(const Vector3 &p_normal) const {

include/godot_cpp/variant/array_helpers.hpp

@@ -28,6 +28,9 @@
 /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
 /**************************************************************************/
 
+#ifndef GODOT_ARRAY_HELPERS_HPP
+#define GODOT_ARRAY_HELPERS_HPP
+
 namespace godot {
 namespace helpers {
 template <typename T, typename ValueT>
@@ -48,3 +51,5 @@ T append_all(T appendable) {
 }
 } // namespace helpers
 } // namespace godot
+
+#endif // GODOT_ARRAY_HELPERS_HPP

include/godot_cpp/variant/basis.hpp

@@ -128,6 +128,7 @@ struct _NO_DISCARD_ Basis {
 	}
 
 	bool is_equal_approx(const Basis &p_basis) const;
+	bool is_finite() const;
 
 	bool operator==(const Basis &p_matrix) const;
 	bool operator!=(const Basis &p_matrix) const;

include/godot_cpp/variant/callable_custom.hpp

@@ -0,0 +1,65 @@
+/**************************************************************************/
+/*  callable_custom.hpp                                                   */
+/**************************************************************************/
+/*                         This file is part of:                          */
+/*                             GODOT ENGINE                               */
+/*                        https://godotengine.org                         */
+/**************************************************************************/
+/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
+/*                                                                        */
+/* Permission is hereby granted, free of charge, to any person obtaining  */
+/* a copy of this software and associated documentation files (the        */
+/* "Software"), to deal in the Software without restriction, including    */
+/* without limitation the rights to use, copy, modify, merge, publish,    */
+/* distribute, sublicense, and/or sell copies of the Software, and to     */
+/* permit persons to whom the Software is furnished to do so, subject to  */
+/* the following conditions:                                              */
+/*                                                                        */
+/* The above copyright notice and this permission notice shall be         */
+/* included in all copies or substantial portions of the Software.        */
+/*                                                                        */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY   */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,   */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE      */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
+/**************************************************************************/
+
+#ifndef GODOT_CALLABLE_CUSTOM_HPP
+#define GODOT_CALLABLE_CUSTOM_HPP
+
+#include <godot_cpp/core/object_id.hpp>
+#include <godot_cpp/variant/string_name.hpp>
+
+namespace godot {
+
+class Object;
+
+class CallableCustomBase {
+public:
+	virtual ObjectID get_object() const = 0;
+	virtual int get_argument_count(bool &r_is_valid) const;
+	virtual void call(const Variant **p_arguments, int p_argcount, Variant &r_return_value, GDExtensionCallError &r_call_error) const = 0;
+	virtual ~CallableCustomBase() {}
+};
+
+class CallableCustom : public CallableCustomBase {
+public:
+	typedef bool (*CompareEqualFunc)(const CallableCustom *p_a, const CallableCustom *p_b);
+	typedef bool (*CompareLessFunc)(const CallableCustom *p_a, const CallableCustom *p_b);
+
+	virtual uint32_t hash() const = 0;
+	virtual String get_as_text() const = 0;
+	virtual CompareEqualFunc get_compare_equal_func() const = 0;
+	virtual CompareLessFunc get_compare_less_func() const = 0;
+	virtual bool is_valid() const;
+	virtual ObjectID get_object() const = 0;
+	virtual void call(const Variant **p_arguments, int p_argcount, Variant &r_return_value, GDExtensionCallError &r_call_error) const = 0;
+};
+
+} // namespace godot
+
+#endif // GODOT_CALLABLE_CUSTOM_HPP

include/godot_cpp/variant/callable_method_pointer.hpp

@@ -0,0 +1,273 @@
+/**************************************************************************/
+/*  callable_method_pointer.hpp                                           */
+/**************************************************************************/
+/*                         This file is part of:                          */
+/*                             GODOT ENGINE                               */
+/*                        https://godotengine.org                         */
+/**************************************************************************/
+/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
+/*                                                                        */
+/* Permission is hereby granted, free of charge, to any person obtaining  */
+/* a copy of this software and associated documentation files (the        */
+/* "Software"), to deal in the Software without restriction, including    */
+/* without limitation the rights to use, copy, modify, merge, publish,    */
+/* distribute, sublicense, and/or sell copies of the Software, and to     */
+/* permit persons to whom the Software is furnished to do so, subject to  */
+/* the following conditions:                                              */
+/*                                                                        */
+/* The above copyright notice and this permission notice shall be         */
+/* included in all copies or substantial portions of the Software.        */
+/*                                                                        */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY   */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,   */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE      */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
+/**************************************************************************/
+
+#ifndef GODOT_CALLABLE_METHOD_POINTER_HPP
+#define GODOT_CALLABLE_METHOD_POINTER_HPP
+
+#include <godot_cpp/core/binder_common.hpp>
+#include <godot_cpp/variant/variant.hpp>
+
+namespace godot {
+
+class CallableCustomMethodPointerBase : public CallableCustomBase {
+	uint32_t *comp_ptr = nullptr;
+	uint32_t comp_size;
+	uint32_t h;
+
+protected:
+	void _setup(uint32_t *p_base_ptr, uint32_t p_ptr_size);
+
+public:
+	_FORCE_INLINE_ const uint32_t *get_comp_ptr() const { return comp_ptr; }
+	_FORCE_INLINE_ uint32_t get_comp_size() const { return comp_size; }
+	_FORCE_INLINE_ uint32_t get_hash() const { return h; }
+};
+
+namespace internal {
+
+Callable create_callable_from_ccmp(CallableCustomMethodPointerBase *p_callable_method_pointer);
+
+} // namespace internal
+
+//
+// No return value.
+//
+
+template <typename T, typename... P>
+class CallableCustomMethodPointer : public CallableCustomMethodPointerBase {
+	struct Data {
+		T *instance;
+		void (T::*method)(P...);
+	} data;
+	static_assert(sizeof(Data) % 4 == 0);
+
+public:
+	virtual ObjectID get_object() const override {
+		return ObjectID(data.instance->get_instance_id());
+	}
+
+	virtual int get_argument_count(bool &r_is_valid) const override {
+		r_is_valid = true;
+		return sizeof...(P);
+	}
+
+	virtual void call(const Variant **p_arguments, int p_argcount, Variant &r_return_value, GDExtensionCallError &r_call_error) const override {
+		call_with_variant_args(data.instance, data.method, p_arguments, p_argcount, r_call_error);
+	}
+
+	CallableCustomMethodPointer(T *p_instance, void (T::*p_method)(P...)) {
+		memset(&data, 0, sizeof(Data));
+		data.instance = p_instance;
+		data.method = p_method;
+		_setup((uint32_t *)&data, sizeof(Data));
+	}
+};
+
+template <typename T, typename... P>
+Callable create_custom_callable_function_pointer(T *p_instance, void (T::*p_method)(P...)) {
+	typedef CallableCustomMethodPointer<T, P...> CCMP;
+	CCMP *ccmp = memnew(CCMP(p_instance, p_method));
+	return ::godot::internal::create_callable_from_ccmp(ccmp);
+}
+
+//
+// With return value.
+//
+
+template <typename T, typename R, typename... P>
+class CallableCustomMethodPointerRet : public CallableCustomMethodPointerBase {
+	struct Data {
+		T *instance;
+		R(T::*method)
+		(P...);
+	} data;
+	static_assert(sizeof(Data) % 4 == 0);
+
+public:
+	virtual ObjectID get_object() const override {
+		return ObjectID(data.instance->get_instance_id());
+	}
+
+	virtual int get_argument_count(bool &r_is_valid) const override {
+		r_is_valid = true;
+		return sizeof...(P);
+	}
+
+	virtual void call(const Variant **p_arguments, int p_argcount, Variant &r_return_value, GDExtensionCallError &r_call_error) const override {
+		call_with_variant_args_ret(data.instance, data.method, p_arguments, p_argcount, r_return_value, r_call_error);
+	}
+
+	CallableCustomMethodPointerRet(T *p_instance, R (T::*p_method)(P...)) {
+		memset(&data, 0, sizeof(Data));
+		data.instance = p_instance;
+		data.method = p_method;
+		_setup((uint32_t *)&data, sizeof(Data));
+	}
+};
+
+template <typename T, typename R, typename... P>
+Callable create_custom_callable_function_pointer(T *p_instance, R (T::*p_method)(P...)) {
+	typedef CallableCustomMethodPointerRet<T, R, P...> CCMP; // Messes with memnew otherwise.
+	CCMP *ccmp = memnew(CCMP(p_instance, p_method));
+	return ::godot::internal::create_callable_from_ccmp(ccmp);
+}
+
+//
+// Const with return value.
+//
+
+template <typename T, typename R, typename... P>
+class CallableCustomMethodPointerRetC : public CallableCustomMethodPointerBase {
+	struct Data {
+		T *instance;
+		R(T::*method)
+		(P...) const;
+	} data;
+	static_assert(sizeof(Data) % 4 == 0);
+
+public:
+	virtual ObjectID get_object() const override {
+		return ObjectID(data.instance->get_instance_id());
+	}
+
+	virtual int get_argument_count(bool &r_is_valid) const override {
+		r_is_valid = true;
+		return sizeof...(P);
+	}
+
+	virtual void call(const Variant **p_arguments, int p_argcount, Variant &r_return_value, GDExtensionCallError &r_call_error) const override {
+		call_with_variant_args_retc(data.instance, data.method, p_arguments, p_argcount, r_return_value, r_call_error);
+	}
+
+	CallableCustomMethodPointerRetC(const T *p_instance, R (T::*p_method)(P...) const) {
+		memset(&data, 0, sizeof(Data));
+		data.instance = const_cast<T *>(p_instance);
+		data.method = p_method;
+		_setup((uint32_t *)&data, sizeof(Data));
+	}
+};
+
+template <typename T, typename R, typename... P>
+Callable create_custom_callable_function_pointer(const T *p_instance, R (T::*p_method)(P...) const) {
+	typedef CallableCustomMethodPointerRetC<T, R, P...> CCMP; // Messes with memnew otherwise.
+	CCMP *ccmp = memnew(CCMP(p_instance, p_method));
+	return ::godot::internal::create_callable_from_ccmp(ccmp);
+}
+
+//
+// Static method with no return value.
+//
+
+template <typename... P>
+class CallableCustomStaticMethodPointer : public CallableCustomMethodPointerBase {
+	struct Data {
+		void (*method)(P...);
+	} data;
+	static_assert(sizeof(Data) % 4 == 0);
+
+public:
+	virtual ObjectID get_object() const override {
+		return ObjectID();
+	}
+
+	virtual int get_argument_count(bool &r_is_valid) const override {
+		r_is_valid = true;
+		return sizeof...(P);
+	}
+
+	virtual void call(const Variant **p_arguments, int p_argcount, Variant &r_return_value, GDExtensionCallError &r_call_error) const override {
+		call_with_variant_args_static_ret(data.method, p_arguments, p_argcount, r_return_value, r_call_error);
+		r_return_value = Variant();
+	}
+
+	CallableCustomStaticMethodPointer(void (*p_method)(P...)) {
+		memset(&data, 0, sizeof(Data));
+		data.method = p_method;
+		_setup((uint32_t *)&data, sizeof(Data));
+	}
+};
+
+template <typename... P>
+Callable create_custom_callable_static_function_pointer(void (*p_method)(P...)) {
+	typedef CallableCustomStaticMethodPointer<P...> CCMP;
+	CCMP *ccmp = memnew(CCMP(p_method));
+	return ::godot::internal::create_callable_from_ccmp(ccmp);
+}
+
+//
+// Static method with return value.
+//
+
+template <typename R, typename... P>
+class CallableCustomStaticMethodPointerRet : public CallableCustomMethodPointerBase {
+	struct Data {
+		R(*method)
+		(P...);
+	} data;
+	static_assert(sizeof(Data) % 4 == 0);
+
+public:
+	virtual ObjectID get_object() const override {
+		return ObjectID();
+	}
+
+	virtual int get_argument_count(bool &r_is_valid) const override {
+		r_is_valid = true;
+		return sizeof...(P);
+	}
+
+	virtual void call(const Variant **p_arguments, int p_argcount, Variant &r_return_value, GDExtensionCallError &r_call_error) const override {
+		call_with_variant_args_static_ret(data.method, p_arguments, p_argcount, r_return_value, r_call_error);
+	}
+
+	CallableCustomStaticMethodPointerRet(R (*p_method)(P...)) {
+		memset(&data, 0, sizeof(Data));
+		data.method = p_method;
+		_setup((uint32_t *)&data, sizeof(Data));
+	}
+};
+
+template <typename R, typename... P>
+Callable create_custom_callable_static_function_pointer(R (*p_method)(P...)) {
+	typedef CallableCustomStaticMethodPointerRet<R, P...> CCMP;
+	CCMP *ccmp = memnew(CCMP(p_method));
+	return ::godot::internal::create_callable_from_ccmp(ccmp);
+}
+
+//
+// The API:
+//
+
+#define callable_mp(I, M) ::godot::create_custom_callable_function_pointer(I, M)
+#define callable_mp_static(M) ::godot::create_custom_callable_static_function_pointer(M)
+
+} // namespace godot
+
+#endif // GODOT_CALLABLE_METHOD_POINTER_HPP

include/godot_cpp/variant/char_string.hpp

@@ -31,82 +31,111 @@
 #ifndef GODOT_CHAR_STRING_HPP
 #define GODOT_CHAR_STRING_HPP
 
+#include <godot_cpp/templates/cowdata.hpp>
+
 #include <cstddef>
 #include <cstdint>
 
 namespace godot {
 
-class CharString {
-	friend class String;
+template <typename T>
+class CharStringT;
 
-	const char *_data = nullptr;
-	int _length = 0;
+template <typename T>
+class CharProxy {
+	template <typename TS>
+	friend class CharStringT;
 
-	CharString(const char *str, int length);
+	const int64_t _index;
+	CowData<T> &_cowdata;
+	static inline const T _null = 0;
+
+	_FORCE_INLINE_ CharProxy(const int64_t &p_index, CowData<T> &p_cowdata) :
+			_index(p_index),
+			_cowdata(p_cowdata) {}
 
 public:
-	int length() const;
-	const char *get_data() const;
+	_FORCE_INLINE_ CharProxy(const CharProxy<T> &p_other) :
+			_index(p_other._index),
+			_cowdata(p_other._cowdata) {}
 
-	CharString(CharString &&p_str);
-	void operator=(CharString &&p_str);
-	CharString() {}
-	~CharString();
+	_FORCE_INLINE_ operator T() const {
+		if (unlikely(_index == _cowdata.size())) {
+			return _null;
+		}
+
+		return _cowdata.get(_index);
+	}
+
+	_FORCE_INLINE_ const T *operator&() const {
+		return _cowdata.ptr() + _index;
+	}
+
+	_FORCE_INLINE_ void operator=(const T &p_other) const {
+		_cowdata.set(_index, p_other);
+	}
+
+	_FORCE_INLINE_ void operator=(const CharProxy<T> &p_other) const {
+		_cowdata.set(_index, p_other.operator T());
+	}
 };
 
-class Char16String {
+template <typename T>
+class CharStringT {
 	friend class String;
 
-	const char16_t *_data = nullptr;
-	int _length = 0;
-
-	Char16String(const char16_t *str, int length);
+	CowData<T> _cowdata;
+	static inline const T _null = 0;
 
 public:
-	int length() const;
-	const char16_t *get_data() const;
+	_FORCE_INLINE_ T *ptrw() { return _cowdata.ptrw(); }
+	_FORCE_INLINE_ const T *ptr() const { return _cowdata.ptr(); }
+	_FORCE_INLINE_ int64_t size() const { return _cowdata.size(); }
+	Error resize(int64_t p_size) { return _cowdata.resize(p_size); }
 
-	Char16String(Char16String &&p_str);
-	void operator=(Char16String &&p_str);
-	Char16String() {}
-	~Char16String();
+	_FORCE_INLINE_ T get(int64_t p_index) const { return _cowdata.get(p_index); }
+	_FORCE_INLINE_ void set(int64_t p_index, const T &p_elem) { _cowdata.set(p_index, p_elem); }
+	_FORCE_INLINE_ const T &operator[](int64_t p_index) const {
+		if (unlikely(p_index == _cowdata.size())) {
+			return _null;
+		}
+
+		return _cowdata.get(p_index);
+	}
+	_FORCE_INLINE_ CharProxy<T> operator[](int64_t p_index) { return CharProxy<T>(p_index, _cowdata); }
+
+	_FORCE_INLINE_ CharStringT() {}
+	_FORCE_INLINE_ CharStringT(const CharStringT<T> &p_str) { _cowdata._ref(p_str._cowdata); }
+	_FORCE_INLINE_ void operator=(const CharStringT<T> &p_str) { _cowdata._ref(p_str._cowdata); }
+	_FORCE_INLINE_ CharStringT(const T *p_cstr) { copy_from(p_cstr); }
+
+	void operator=(const T *p_cstr);
+	bool operator<(const CharStringT<T> &p_right) const;
+	CharStringT<T> &operator+=(T p_char);
+	int64_t length() const { return size() ? size() - 1 : 0; }
+	const T *get_data() const;
+	operator const T *() const { return get_data(); };
+
+protected:
+	void copy_from(const T *p_cstr);
 };
 
-class Char32String {
-	friend class String;
+template <>
+const char *CharStringT<char>::get_data() const;
 
-	const char32_t *_data = nullptr;
-	int _length = 0;
+template <>
+const char16_t *CharStringT<char16_t>::get_data() const;
 
-	Char32String(const char32_t *str, int length);
+template <>
+const char32_t *CharStringT<char32_t>::get_data() const;
 
-public:
-	int length() const;
-	const char32_t *get_data() const;
+template <>
+const wchar_t *CharStringT<wchar_t>::get_data() const;
 
-	Char32String(Char32String &&p_str);
-	void operator=(Char32String &&p_str);
-	Char32String() {}
-	~Char32String();
-};
-
-class CharWideString {
-	friend class String;
-
-	const wchar_t *_data = nullptr;
-	int _length = 0;
-
-	CharWideString(const wchar_t *str, int length);
-
-public:
-	int length() const;
-	const wchar_t *get_data() const;
-
-	CharWideString(CharWideString &&p_str);
-	void operator=(CharWideString &&p_str);
-	CharWideString() {}
-	~CharWideString();
-};
+typedef CharStringT<char> CharString;
+typedef CharStringT<char16_t> Char16String;
+typedef CharStringT<char32_t> Char32String;
+typedef CharStringT<wchar_t> CharWideString;
 
 } // namespace godot
 

include/godot_cpp/variant/color_names.inc.hpp

@@ -28,6 +28,9 @@
 /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
 /**************************************************************************/
 
+#ifndef GODOT_COLOR_NAMES_INC_HPP
+#define GODOT_COLOR_NAMES_INC_HPP
+
 namespace godot {
 
 // Names from https://en.wikipedia.org/wiki/X11_color_names
@@ -189,3 +192,5 @@ static NamedColor named_colors[] = {
 };
 
 } // namespace godot
+
+#endif // GODOT_COLOR_NAMES_INC_HPP

include/godot_cpp/variant/plane.hpp

@@ -77,6 +77,7 @@ struct _NO_DISCARD_ Plane {
 	Plane operator-() const { return Plane(-normal, -d); }
 	bool is_equal_approx(const Plane &p_plane) const;
 	bool is_equal_approx_any_side(const Plane &p_plane) const;
+	bool is_finite() const;
 
 	_FORCE_INLINE_ bool operator==(const Plane &p_plane) const;
 	_FORCE_INLINE_ bool operator!=(const Plane &p_plane) const;

include/godot_cpp/variant/quaternion.hpp

@@ -55,6 +55,7 @@ struct _NO_DISCARD_ Quaternion {
 	}
 	_FORCE_INLINE_ real_t length_squared() const;
 	bool is_equal_approx(const Quaternion &p_quaternion) const;
+	bool is_finite() const;
 	real_t length() const;
 	void normalize();
 	Quaternion normalized() const;

include/godot_cpp/variant/rect2.hpp

@@ -146,7 +146,7 @@ struct _NO_DISCARD_ Rect2 {
 		return size.x > 0.0f && size.y > 0.0f;
 	}
 
-	// Returns the instersection between two Rect2s or an empty Rect2 if there is no intersection
+	// Returns the intersection between two Rect2s or an empty Rect2 if there is no intersection
 	inline Rect2 intersection(const Rect2 &p_rect) const {
 		Rect2 new_rect = p_rect;
 
@@ -154,14 +154,12 @@ struct _NO_DISCARD_ Rect2 {
 			return Rect2();
 		}
 
-		new_rect.position.x = Math::max(p_rect.position.x, position.x);
-		new_rect.position.y = Math::max(p_rect.position.y, position.y);
+		new_rect.position = p_rect.position.max(position);
 
 		Point2 p_rect_end = p_rect.position + p_rect.size;
 		Point2 end = position + size;
 
-		new_rect.size.x = Math::min(p_rect_end.x, end.x) - new_rect.position.x;
-		new_rect.size.y = Math::min(p_rect_end.y, end.y) - new_rect.position.y;
+		new_rect.size = p_rect_end.min(end) - new_rect.position;
 
 		return new_rect;
 	}
@@ -174,11 +172,9 @@ struct _NO_DISCARD_ Rect2 {
 #endif
 		Rect2 new_rect;
 
-		new_rect.position.x = Math::min(p_rect.position.x, position.x);
-		new_rect.position.y = Math::min(p_rect.position.y, position.y);
+		new_rect.position = p_rect.position.min(position);
 
-		new_rect.size.x = Math::max(p_rect.position.x + p_rect.size.x, position.x + size.x);
-		new_rect.size.y = Math::max(p_rect.position.y + p_rect.size.y, position.y + size.y);
+		new_rect.size = (p_rect.position + p_rect.size).max(position + size);
 
 		new_rect.size = new_rect.size - new_rect.position; // Make relative again.
 
@@ -209,6 +205,7 @@ struct _NO_DISCARD_ Rect2 {
 	}
 
 	bool is_equal_approx(const Rect2 &p_rect) const;
+	bool is_finite() const;
 
 	bool operator==(const Rect2 &p_rect) const { return position == p_rect.position && size == p_rect.size; }
 	bool operator!=(const Rect2 &p_rect) const { return position != p_rect.position || size != p_rect.size; }
@@ -283,7 +280,7 @@ struct _NO_DISCARD_ Rect2 {
 	}
 
 	_FORCE_INLINE_ Rect2 abs() const {
-		return Rect2(Point2(position.x + Math::min(size.x, (real_t)0), position.y + Math::min(size.y, (real_t)0)), size.abs());
+		return Rect2(position + size.minf(0), size.abs());
 	}
 
 	Vector2 get_support(const Vector2 &p_normal) const {

include/godot_cpp/variant/rect2i.hpp

@@ -89,7 +89,7 @@ struct _NO_DISCARD_ Rect2i {
 		return size.x > 0 && size.y > 0;
 	}
 
-	// Returns the instersection between two Rect2is or an empty Rect2i if there is no intersection
+	// Returns the intersection between two Rect2is or an empty Rect2i if there is no intersection
 	inline Rect2i intersection(const Rect2i &p_rect) const {
 		Rect2i new_rect = p_rect;
 
@@ -97,14 +97,12 @@ struct _NO_DISCARD_ Rect2i {
 			return Rect2i();
 		}
 
-		new_rect.position.x = Math::max(p_rect.position.x, position.x);
-		new_rect.position.y = Math::max(p_rect.position.y, position.y);
+		new_rect.position = p_rect.position.max(position);
 
 		Point2i p_rect_end = p_rect.position + p_rect.size;
 		Point2i end = position + size;
 
-		new_rect.size.x = Math::min(p_rect_end.x, end.x) - new_rect.position.x;
-		new_rect.size.y = Math::min(p_rect_end.y, end.y) - new_rect.position.y;
+		new_rect.size = p_rect_end.min(end) - new_rect.position;
 
 		return new_rect;
 	}
@@ -117,11 +115,9 @@ struct _NO_DISCARD_ Rect2i {
 #endif
 		Rect2i new_rect;
 
-		new_rect.position.x = Math::min(p_rect.position.x, position.x);
-		new_rect.position.y = Math::min(p_rect.position.y, position.y);
+		new_rect.position = p_rect.position.min(position);
 
-		new_rect.size.x = Math::max(p_rect.position.x + p_rect.size.x, position.x + size.x);
-		new_rect.size.y = Math::max(p_rect.position.y + p_rect.size.y, position.y + size.y);
+		new_rect.size = (p_rect.position + p_rect.size).max(position + size);
 
 		new_rect.size = new_rect.size - new_rect.position; // Make relative again.
 
@@ -219,7 +215,7 @@ struct _NO_DISCARD_ Rect2i {
 	}
 
 	_FORCE_INLINE_ Rect2i abs() const {
-		return Rect2i(Point2i(position.x + Math::min(size.x, 0), position.y + Math::min(size.y, 0)), size.abs());
+		return Rect2i(position + size.mini(0), size.abs());
 	}
 
 	_FORCE_INLINE_ void set_end(const Vector2i &p_end) {

include/godot_cpp/variant/transform2d.hpp

@@ -99,6 +99,7 @@ struct _NO_DISCARD_ Transform2D {
 	void orthonormalize();
 	Transform2D orthonormalized() const;
 	bool is_equal_approx(const Transform2D &p_transform) const;
+	bool is_finite() const;
 
 	Transform2D looking_at(const Vector2 &p_target) const;
 

include/godot_cpp/variant/transform3d.hpp

@@ -78,6 +78,7 @@ struct _NO_DISCARD_ Transform3D {
 	void orthogonalize();
 	Transform3D orthogonalized() const;
 	bool is_equal_approx(const Transform3D &p_transform) const;
+	bool is_finite() const;
 
 	bool operator==(const Transform3D &p_transform) const;
 	bool operator!=(const Transform3D &p_transform) const;

include/godot_cpp/variant/typed_array.hpp

@@ -36,7 +36,7 @@
 
 namespace godot {
 
-template <class T>
+template <typename T>
 class TypedArray : public Array {
 public:
 	_FORCE_INLINE_ void operator=(const Array &p_array) {
@@ -44,10 +44,15 @@ public:
 		_ref(p_array);
 	}
 	_FORCE_INLINE_ TypedArray(const Variant &p_variant) :
-			Array(p_variant.operator Array(), Variant::OBJECT, T::get_class_static(), Variant()) {
+			TypedArray(Array(p_variant)) {
 	}
-	_FORCE_INLINE_ TypedArray(const Array &p_array) :
-			Array(p_array, Variant::OBJECT, T::get_class_static(), Variant()) {
+	_FORCE_INLINE_ TypedArray(const Array &p_array) {
+		set_typed(Variant::OBJECT, T::get_class_static(), Variant());
+		if (is_same_typed(p_array)) {
+			_ref(p_array);
+		} else {
+			assign(p_array);
+		}
 	}
 	_FORCE_INLINE_ TypedArray() {
 		set_typed(Variant::OBJECT, T::get_class_static(), Variant());
@@ -65,16 +70,23 @@ public:
 			_ref(p_array);                                                                                       \
 		}                                                                                                        \
 		_FORCE_INLINE_ TypedArray(const Variant &p_variant) :                                                    \
-				Array(p_variant.operator Array(), m_variant_type, StringName(), Variant()) {                     \
+				TypedArray(Array(p_variant)) {                                                                   \
 		}                                                                                                        \
-		_FORCE_INLINE_ TypedArray(const Array &p_array) :                                                        \
-				Array(p_array, m_variant_type, StringName(), Variant()) {                                        \
+		_FORCE_INLINE_ TypedArray(const Array &p_array) {                                                        \
+			set_typed(m_variant_type, StringName(), Variant());                                                  \
+			if (is_same_typed(p_array)) {                                                                        \
+				_ref(p_array);                                                                                   \
+			} else {                                                                                             \
+				assign(p_array);                                                                                 \
+			}                                                                                                    \
 		}                                                                                                        \
 		_FORCE_INLINE_ TypedArray() {                                                                            \
 			set_typed(m_variant_type, StringName(), Variant());                                                  \
 		}                                                                                                        \
 	};
 
+// All Variant::OBJECT types are intentionally omitted from this list because they are handled by
+// the unspecialized TypedArray definition.
 MAKE_TYPED_ARRAY(bool, Variant::BOOL)
 MAKE_TYPED_ARRAY(uint8_t, Variant::INT)
 MAKE_TYPED_ARRAY(int8_t, Variant::INT)
@@ -94,11 +106,14 @@ MAKE_TYPED_ARRAY(Rect2i, Variant::RECT2I)
 MAKE_TYPED_ARRAY(Vector3, Variant::VECTOR3)
 MAKE_TYPED_ARRAY(Vector3i, Variant::VECTOR3I)
 MAKE_TYPED_ARRAY(Transform2D, Variant::TRANSFORM2D)
+MAKE_TYPED_ARRAY(Vector4, Variant::VECTOR4)
+MAKE_TYPED_ARRAY(Vector4i, Variant::VECTOR4I)
 MAKE_TYPED_ARRAY(Plane, Variant::PLANE)
 MAKE_TYPED_ARRAY(Quaternion, Variant::QUATERNION)
 MAKE_TYPED_ARRAY(AABB, Variant::AABB)
 MAKE_TYPED_ARRAY(Basis, Variant::BASIS)
 MAKE_TYPED_ARRAY(Transform3D, Variant::TRANSFORM3D)
+MAKE_TYPED_ARRAY(Projection, Variant::PROJECTION)
 MAKE_TYPED_ARRAY(Color, Variant::COLOR)
 MAKE_TYPED_ARRAY(StringName, Variant::STRING_NAME)
 MAKE_TYPED_ARRAY(NodePath, Variant::NODE_PATH)
@@ -115,7 +130,12 @@ MAKE_TYPED_ARRAY(PackedFloat64Array, Variant::PACKED_FLOAT64_ARRAY)
 MAKE_TYPED_ARRAY(PackedStringArray, Variant::PACKED_STRING_ARRAY)
 MAKE_TYPED_ARRAY(PackedVector2Array, Variant::PACKED_VECTOR2_ARRAY)
 MAKE_TYPED_ARRAY(PackedVector3Array, Variant::PACKED_VECTOR3_ARRAY)
+MAKE_TYPED_ARRAY(PackedVector4Array, Variant::PACKED_VECTOR4_ARRAY)
 MAKE_TYPED_ARRAY(PackedColorArray, Variant::PACKED_COLOR_ARRAY)
+// If the IPAddress struct is added to godot-cpp, the following could also be added:
+//MAKE_TYPED_ARRAY(IPAddress, Variant::STRING)
+
+#undef MAKE_TYPED_ARRAY
 
 } // namespace godot
 

include/godot_cpp/variant/variant.hpp

@@ -47,8 +47,6 @@ class ObjectID;
 class Variant {
 	uint8_t opaque[GODOT_CPP_VARIANT_SIZE]{ 0 };
 
-	_FORCE_INLINE_ GDExtensionVariantPtr _native_ptr() const { return const_cast<uint8_t(*)[GODOT_CPP_VARIANT_SIZE]>(&opaque); }
-
 	friend class GDExtensionBinding;
 	friend class MethodBind;
 
@@ -102,6 +100,7 @@ public:
 		PACKED_VECTOR2_ARRAY,
 		PACKED_VECTOR3_ARRAY,
 		PACKED_COLOR_ARRAY,
+		PACKED_VECTOR4_ARRAY,
 
 		VARIANT_MAX
 	};
@@ -122,6 +121,7 @@ public:
 		OP_NEGATE,
 		OP_POSITIVE,
 		OP_MODULE,
+		OP_POWER,
 		// bitwise
 		OP_SHIFT_LEFT,
 		OP_SHIFT_RIGHT,
@@ -144,6 +144,7 @@ private:
 	static GDExtensionTypeFromVariantConstructorFunc to_type_constructor[VARIANT_MAX];
 
 public:
+	_FORCE_INLINE_ GDExtensionVariantPtr _native_ptr() const { return const_cast<uint8_t(*)[GODOT_CPP_VARIANT_SIZE]>(&opaque); }
 	Variant();
 	Variant(std::nullptr_t n) :
 			Variant() {}
@@ -154,10 +155,18 @@ public:
 	Variant(int64_t v);
 	Variant(int32_t v) :
 			Variant(static_cast<int64_t>(v)) {}
-	Variant(uint32_t v) :
+	Variant(int16_t v) :
+			Variant(static_cast<int64_t>(v)) {}
+	Variant(int8_t v) :
 			Variant(static_cast<int64_t>(v)) {}
 	Variant(uint64_t v) :
 			Variant(static_cast<int64_t>(v)) {}
+	Variant(uint32_t v) :
+			Variant(static_cast<int64_t>(v)) {}
+	Variant(uint16_t v) :
+			Variant(static_cast<int64_t>(v)) {}
+	Variant(uint8_t v) :
+			Variant(static_cast<int64_t>(v)) {}
 	Variant(double v);
 	Variant(float v) :
 			Variant((double)v) {}
@@ -204,13 +213,18 @@ public:
 	Variant(const PackedVector2Array &v);
 	Variant(const PackedVector3Array &v);
 	Variant(const PackedColorArray &v);
+	Variant(const PackedVector4Array &v);
 	~Variant();
 
 	operator bool() const;
 	operator int64_t() const;
 	operator int32_t() const;
+	operator int16_t() const;
+	operator int8_t() const;
 	operator uint64_t() const;
 	operator uint32_t() const;
+	operator uint16_t() const;
+	operator uint8_t() const;
 	operator double() const;
 	operator float() const;
 	operator String() const;
@@ -248,6 +262,7 @@ public:
 	operator PackedVector2Array() const;
 	operator PackedVector3Array() const;
 	operator PackedColorArray() const;
+	operator PackedVector4Array() const;
 
 	Variant &operator=(const Variant &other);
 	Variant &operator=(Variant &&other);
@@ -255,25 +270,33 @@ public:
 	bool operator!=(const Variant &other) const;
 	bool operator<(const Variant &other) const;
 
-	void call(const StringName &method, const Variant **args, int argcount, Variant &r_ret, GDExtensionCallError &r_error);
+	void callp(const StringName &method, const Variant **args, int argcount, Variant &r_ret, GDExtensionCallError &r_error);
 
-	template <class... Args>
+	template <typename... Args>
 	Variant call(const StringName &method, Args... args) {
+		std::array<Variant, sizeof...(args)> vargs = { args... };
+		std::array<const Variant *, sizeof...(args)> argptrs;
+		for (size_t i = 0; i < vargs.size(); i++) {
+			argptrs[i] = &vargs[i];
+		}
 		Variant result;
 		GDExtensionCallError error;
-		std::array<GDExtensionConstVariantPtr, sizeof...(Args)> call_args = { Variant(args)... };
-		call(method, call_args.data(), call_args.size(), result, error);
+		callp(method, argptrs.data(), argptrs.size(), result, error);
 		return result;
 	}
 
-	static void call_static(Variant::Type type, const StringName &method, const Variant **args, int argcount, Variant &r_ret, GDExtensionCallError &r_error);
+	static void callp_static(Variant::Type type, const StringName &method, const Variant **args, int argcount, Variant &r_ret, GDExtensionCallError &r_error);
 
-	template <class... Args>
+	template <typename... Args>
 	static Variant call_static(Variant::Type type, const StringName &method, Args... args) {
+		std::array<Variant, sizeof...(args)> vargs = { args... };
+		std::array<const Variant *, sizeof...(args)> argptrs;
+		for (size_t i = 0; i < vargs.size(); i++) {
+			argptrs[i] = &vargs[i];
+		}
 		Variant result;
 		GDExtensionCallError error;
-		std::array<GDExtensionConstVariantPtr, sizeof...(Args)> call_args = { Variant(args)... };
-		call_static(type, method, call_args.data(), call_args.size(), result, error);
+		callp_static(type, method, argptrs.data(), argptrs.size(), sizeof...(args), result, error);
 		return result;
 	}
 
@@ -334,6 +357,14 @@ String vformat(const String &p_text, const VarArgs... p_args) {
 	return p_text % args_array;
 }
 
+#include <godot_cpp/variant/builtin_vararg_methods.hpp>
+
+#ifdef REAL_T_IS_DOUBLE
+using PackedRealArray = PackedFloat64Array;
+#else
+using PackedRealArray = PackedFloat32Array;
+#endif // REAL_T_IS_DOUBLE
+
 } // namespace godot
 
 #endif // GODOT_VARIANT_HPP

include/godot_cpp/variant/vector2.hpp

@@ -91,10 +91,18 @@ struct _NO_DISCARD_ Vector2 {
 		return Vector2(MIN(x, p_vector2.x), MIN(y, p_vector2.y));
 	}
 
+	Vector2 minf(real_t p_scalar) const {
+		return Vector2(MIN(x, p_scalar), MIN(y, p_scalar));
+	}
+
 	Vector2 max(const Vector2 &p_vector2) const {
 		return Vector2(MAX(x, p_vector2.x), MAX(y, p_vector2.y));
 	}
 
+	Vector2 maxf(real_t p_scalar) const {
+		return Vector2(MAX(x, p_scalar), MAX(y, p_scalar));
+	}
+
 	real_t distance_to(const Vector2 &p_vector2) const;
 	real_t distance_squared_to(const Vector2 &p_vector2) const;
 	real_t angle_to(const Vector2 &p_vector2) const;
@@ -123,6 +131,7 @@ struct _NO_DISCARD_ Vector2 {
 
 	bool is_equal_approx(const Vector2 &p_v) const;
 	bool is_zero_approx() const;
+	bool is_finite() const;
 
 	Vector2 operator+(const Vector2 &p_v) const;
 	void operator+=(const Vector2 &p_v);
@@ -168,7 +177,9 @@ struct _NO_DISCARD_ Vector2 {
 	Vector2 ceil() const;
 	Vector2 round() const;
 	Vector2 snapped(const Vector2 &p_by) const;
+	Vector2 snappedf(real_t p_by) const;
 	Vector2 clamp(const Vector2 &p_min, const Vector2 &p_max) const;
+	Vector2 clampf(real_t p_min, real_t p_max) const;
 	real_t aspect() const { return width / height; }
 
 	operator String() const;

include/godot_cpp/variant/vector2i.hpp

@@ -83,10 +83,18 @@ struct _NO_DISCARD_ Vector2i {
 		return Vector2i(MIN(x, p_vector2i.x), MIN(y, p_vector2i.y));
 	}
 
+	Vector2i mini(int32_t p_scalar) const {
+		return Vector2i(MIN(x, p_scalar), MIN(y, p_scalar));
+	}
+
 	Vector2i max(const Vector2i &p_vector2i) const {
 		return Vector2i(MAX(x, p_vector2i.x), MAX(y, p_vector2i.y));
 	}
 
+	Vector2i maxi(int32_t p_scalar) const {
+		return Vector2i(MAX(x, p_scalar), MAX(y, p_scalar));
+	}
+
 	Vector2i operator+(const Vector2i &p_v) const;
 	void operator+=(const Vector2i &p_v);
 	Vector2i operator-(const Vector2i &p_v) const;
@@ -117,10 +125,16 @@ struct _NO_DISCARD_ Vector2i {
 	int64_t length_squared() const;
 	double length() const;
 
+	int64_t distance_squared_to(const Vector2i &p_to) const;
+	double distance_to(const Vector2i &p_to) const;
+
 	real_t aspect() const { return width / (real_t)height; }
 	Vector2i sign() const { return Vector2i(SIGN(x), SIGN(y)); }
 	Vector2i abs() const { return Vector2i(Math::abs(x), Math::abs(y)); }
+	Vector2i snapped(const Vector2i &p_step) const;
+	Vector2i snappedi(int32_t p_step) const;
 	Vector2i clamp(const Vector2i &p_min, const Vector2i &p_max) const;
+	Vector2i clampi(int32_t p_min, int32_t p_max) const;
 
 	operator String() const;
 	operator Vector2() const;

include/godot_cpp/variant/vector3.hpp

@@ -78,6 +78,22 @@ struct _NO_DISCARD_ Vector3 {
 		return x < y ? (y < z ? Vector3::AXIS_Z : Vector3::AXIS_Y) : (x < z ? Vector3::AXIS_Z : Vector3::AXIS_X);
 	}
 
+	Vector3 min(const Vector3 &p_vector3) const {
+		return Vector3(MIN(x, p_vector3.x), MIN(y, p_vector3.y), MIN(z, p_vector3.z));
+	}
+
+	Vector3 minf(real_t p_scalar) const {
+		return Vector3(MIN(x, p_scalar), MIN(y, p_scalar), MIN(z, p_scalar));
+	}
+
+	Vector3 max(const Vector3 &p_vector3) const {
+		return Vector3(MAX(x, p_vector3.x), MAX(y, p_vector3.y), MAX(z, p_vector3.z));
+	}
+
+	Vector3 maxf(real_t p_scalar) const {
+		return Vector3(MAX(x, p_scalar), MAX(y, p_scalar), MAX(z, p_scalar));
+	}
+
 	_FORCE_INLINE_ real_t length() const;
 	_FORCE_INLINE_ real_t length_squared() const;
 
@@ -90,7 +106,9 @@ struct _NO_DISCARD_ Vector3 {
 	_FORCE_INLINE_ void zero();
 
 	void snap(const Vector3 p_val);
+	void snapf(real_t p_val);
 	Vector3 snapped(const Vector3 p_val) const;
+	Vector3 snappedf(real_t p_val) const;
 
 	void rotate(const Vector3 &p_axis, const real_t p_angle);
 	Vector3 rotated(const Vector3 &p_axis, const real_t p_angle) const;
@@ -120,6 +138,7 @@ struct _NO_DISCARD_ Vector3 {
 	_FORCE_INLINE_ Vector3 ceil() const;
 	_FORCE_INLINE_ Vector3 round() const;
 	Vector3 clamp(const Vector3 &p_min, const Vector3 &p_max) const;
+	Vector3 clampf(real_t p_min, real_t p_max) const;
 
 	_FORCE_INLINE_ real_t distance_to(const Vector3 &p_to) const;
 	_FORCE_INLINE_ real_t distance_squared_to(const Vector3 &p_to) const;
@@ -138,6 +157,7 @@ struct _NO_DISCARD_ Vector3 {
 
 	bool is_equal_approx(const Vector3 &p_v) const;
 	bool is_zero_approx() const;
+	bool is_finite() const;
 
 	/* Operators */
 

include/godot_cpp/variant/vector3i.hpp

@@ -71,14 +71,36 @@ struct _NO_DISCARD_ Vector3i {
 	Vector3i::Axis min_axis_index() const;
 	Vector3i::Axis max_axis_index() const;
 
+	Vector3i min(const Vector3i &p_vector3i) const {
+		return Vector3i(MIN(x, p_vector3i.x), MIN(y, p_vector3i.y), MIN(z, p_vector3i.z));
+	}
+
+	Vector3i mini(int32_t p_scalar) const {
+		return Vector3i(MIN(x, p_scalar), MIN(y, p_scalar), MIN(z, p_scalar));
+	}
+
+	Vector3i max(const Vector3i &p_vector3i) const {
+		return Vector3i(MAX(x, p_vector3i.x), MAX(y, p_vector3i.y), MAX(z, p_vector3i.z));
+	}
+
+	Vector3i maxi(int32_t p_scalar) const {
+		return Vector3i(MAX(x, p_scalar), MAX(y, p_scalar), MAX(z, p_scalar));
+	}
+
 	_FORCE_INLINE_ int64_t length_squared() const;
 	_FORCE_INLINE_ double length() const;
 
+	_FORCE_INLINE_ int64_t distance_squared_to(const Vector3i &p_to) const;
+	_FORCE_INLINE_ double distance_to(const Vector3i &p_to) const;
+
 	_FORCE_INLINE_ void zero();
 
 	_FORCE_INLINE_ Vector3i abs() const;
 	_FORCE_INLINE_ Vector3i sign() const;
+	Vector3i snapped(const Vector3i &p_step) const;
+	Vector3i snappedi(int32_t p_step) const;
 	Vector3i clamp(const Vector3i &p_min, const Vector3i &p_max) const;
+	Vector3i clampi(int32_t p_min, int32_t p_max) const;
 
 	/* Operators */
 
@@ -128,6 +150,14 @@ double Vector3i::length() const {
 	return Math::sqrt((double)length_squared());
 }
 
+int64_t Vector3i::distance_squared_to(const Vector3i &p_to) const {
+	return (p_to - *this).length_squared();
+}
+
+double Vector3i::distance_to(const Vector3i &p_to) const {
+	return (p_to - *this).length();
+}
+
 Vector3i Vector3i::abs() const {
 	return Vector3i(Math::abs(x), Math::abs(y), Math::abs(z));
 }

include/godot_cpp/variant/vector4.hpp

@@ -70,9 +70,26 @@ struct _NO_DISCARD_ Vector4 {
 	Vector4::Axis min_axis_index() const;
 	Vector4::Axis max_axis_index() const;
 
+	Vector4 min(const Vector4 &p_vector4) const {
+		return Vector4(MIN(x, p_vector4.x), MIN(y, p_vector4.y), MIN(z, p_vector4.z), MIN(w, p_vector4.w));
+	}
+
+	Vector4 minf(real_t p_scalar) const {
+		return Vector4(MIN(x, p_scalar), MIN(y, p_scalar), MIN(z, p_scalar), MIN(w, p_scalar));
+	}
+
+	Vector4 max(const Vector4 &p_vector4) const {
+		return Vector4(MAX(x, p_vector4.x), MAX(y, p_vector4.y), MAX(z, p_vector4.z), MAX(w, p_vector4.w));
+	}
+
+	Vector4 maxf(real_t p_scalar) const {
+		return Vector4(MAX(x, p_scalar), MAX(y, p_scalar), MAX(z, p_scalar), MAX(w, p_scalar));
+	}
+
 	_FORCE_INLINE_ real_t length_squared() const;
 	bool is_equal_approx(const Vector4 &p_vec4) const;
 	bool is_zero_approx() const;
+	bool is_finite() const;
 	real_t length() const;
 	void normalize();
 	Vector4 normalized() const;
@@ -94,8 +111,11 @@ struct _NO_DISCARD_ Vector4 {
 	Vector4 posmod(const real_t p_mod) const;
 	Vector4 posmodv(const Vector4 &p_modv) const;
 	void snap(const Vector4 &p_step);
+	void snapf(real_t p_step);
 	Vector4 snapped(const Vector4 &p_step) const;
+	Vector4 snappedf(real_t p_step) const;
 	Vector4 clamp(const Vector4 &p_min, const Vector4 &p_max) const;
+	Vector4 clampf(real_t p_min, real_t p_max) const;
 
 	Vector4 inverse() const;
 	_FORCE_INLINE_ real_t dot(const Vector4 &p_vec4) const;

include/godot_cpp/variant/vector4i.hpp

@@ -73,14 +73,36 @@ struct _NO_DISCARD_ Vector4i {
 	Vector4i::Axis min_axis_index() const;
 	Vector4i::Axis max_axis_index() const;
 
+	Vector4i min(const Vector4i &p_vector4i) const {
+		return Vector4i(MIN(x, p_vector4i.x), MIN(y, p_vector4i.y), MIN(z, p_vector4i.z), MIN(w, p_vector4i.w));
+	}
+
+	Vector4i mini(int32_t p_scalar) const {
+		return Vector4i(MIN(x, p_scalar), MIN(y, p_scalar), MIN(z, p_scalar), MIN(w, p_scalar));
+	}
+
+	Vector4i max(const Vector4i &p_vector4i) const {
+		return Vector4i(MAX(x, p_vector4i.x), MAX(y, p_vector4i.y), MAX(z, p_vector4i.z), MAX(w, p_vector4i.w));
+	}
+
+	Vector4i maxi(int32_t p_scalar) const {
+		return Vector4i(MAX(x, p_scalar), MAX(y, p_scalar), MAX(z, p_scalar), MAX(w, p_scalar));
+	}
+
 	_FORCE_INLINE_ int64_t length_squared() const;
 	_FORCE_INLINE_ double length() const;
 
+	_FORCE_INLINE_ int64_t distance_squared_to(const Vector4i &p_to) const;
+	_FORCE_INLINE_ double distance_to(const Vector4i &p_to) const;
+
 	_FORCE_INLINE_ void zero();
 
 	_FORCE_INLINE_ Vector4i abs() const;
 	_FORCE_INLINE_ Vector4i sign() const;
+	Vector4i snapped(const Vector4i &p_step) const;
+	Vector4i snappedi(int32_t p_step) const;
 	Vector4i clamp(const Vector4i &p_min, const Vector4i &p_max) const;
+	Vector4i clampi(int32_t p_min, int32_t p_max) const;
 
 	/* Operators */
 
@@ -132,6 +154,14 @@ double Vector4i::length() const {
 	return Math::sqrt((double)length_squared());
 }
 
+int64_t Vector4i::distance_squared_to(const Vector4i &p_to) const {
+	return (p_to - *this).length_squared();
+}
+
+double Vector4i::distance_to(const Vector4i &p_to) const {
+	return (p_to - *this).length();
+}
+
 Vector4i Vector4i::abs() const {
 	return Vector4i(Math::abs(x), Math::abs(y), Math::abs(z), Math::abs(w));
 }

misc/hooks/README.md

@@ -1,37 +0,0 @@
-# Git hooks for Godot Engine
-
-This folder contains Git hooks meant to be installed locally by Godot Engine
-contributors to make sure they comply with our requirements.
-
-## List of hooks
-
-- Pre-commit hook for `clang-format`: Applies `clang-format` to the staged
-  files before accepting a commit; blocks the commit and generates a patch if
-  the style is not respected.
-  You may need to edit the file if your `clang-format` binary is not in the
-  `PATH`, or if you want to enable colored output with `pygmentize`.
-- Pre-commit hook for `black`: Applies `black` to the staged Python files
-  before accepting a commit.
-- Pre-commit hook for `make_rst`: Checks the class reference syntax using
-  `make_rst.py`.
-
-## Installation
-
-Copy all the files from this folder into your `.git/hooks` folder, and make
-sure the hooks and helper scripts are executable.
-
-#### Linux/MacOS
-
-The hooks rely on bash scripts and tools which should be in the system `PATH`,
-so they should work out of the box on Linux/macOS.
-
-#### Windows
-
-##### clang-format
-- Download LLVM for Windows (version 13 or later) from
-  <https://releases.llvm.org/download.html>
-- Make sure LLVM is added to the `PATH` during installation
-
-##### black
-- Python installation: make sure Python is added to the `PATH`
-- Install `black` - in any console: `pip3 install black`

misc/hooks/canonicalize_filename.sh

@@ -1,48 +0,0 @@
-#!/bin/sh
-
-# Provide the canonicalize filename (physical filename with out any symlinks)
-# like the GNU version readlink with the -f option regardless of the version of
-# readlink (GNU or BSD).
-
-# This file is part of a set of unofficial pre-commit hooks available
-# at github.
-# Link:    https://github.com/githubbrowser/Pre-commit-hooks
-# Contact: David Martin, david.martin.mailbox@googlemail.com
-
-###########################################################
-# There should be no need to change anything below this line.
-
-# Canonicalize by recursively following every symlink in every component of the
-# specified filename. This should reproduce the results of the GNU version of
-# readlink with the -f option.
-#
-# Reference: https://stackoverflow.com/questions/1055671/how-can-i-get-the-behavior-of-gnus-readlink-f-on-a-mac
-canonicalize_filename () {
-    local target_file="$1"
-    local physical_directory=""
-    local result=""
-
-    # Need to restore the working directory after work.
-    local working_dir="`pwd`"
-
-    cd -- "$(dirname -- "$target_file")"
-    target_file="$(basename -- "$target_file")"
-
-    # Iterate down a (possible) chain of symlinks
-    while [ -L "$target_file" ]
-    do
-        target_file="$(readlink -- "$target_file")"
-        cd -- "$(dirname -- "$target_file")"
-        target_file="$(basename -- "$target_file")"
-    done
-
-    # Compute the canonicalized name by finding the physical path
-    # for the directory we're in and appending the target file.
-    physical_directory="`pwd -P`"
-    result="$physical_directory/$target_file"
-
-    # restore the working directory after work.
-    cd -- "$working_dir"
-
-    echo "$result"
-}

misc/hooks/pre-commit

@@ -1,50 +0,0 @@
-#!/bin/sh
-# Git pre-commit hook that runs multiple hooks specified in $HOOKS.
-# Make sure this script is executable. Bypass hooks with git commit --no-verify.
-
-# This file is part of a set of unofficial pre-commit hooks available
-# at github.
-# Link:    https://github.com/githubbrowser/Pre-commit-hooks
-# Contact: David Martin, david.martin.mailbox@googlemail.com
-
-
-###########################################################
-# CONFIGURATION:
-# pre-commit hooks to be executed. They should be in the same .git/hooks/ folder
-# as this script. Hooks should return 0 if successful and nonzero to cancel the
-# commit. They are executed in the order in which they are listed.
-#HOOKS="pre-commit-compile pre-commit-uncrustify"
-HOOKS="pre-commit-clang-format pre-commit-black"
-###########################################################
-# There should be no need to change anything below this line.
-
-. "$(dirname -- "$0")/canonicalize_filename.sh"
-
-# exit on error
-set -e
-
-# Absolute path to this script, e.g. /home/user/bin/foo.sh
-SCRIPT="$(canonicalize_filename "$0")"
-
-# Absolute path this script is in, thus /home/user/bin
-SCRIPTPATH="$(dirname -- "$SCRIPT")"
-
-
-for hook in $HOOKS
-do
-    echo "Running hook: $hook"
-    # run hook if it exists
-    # if it returns with nonzero exit with 1 and thus abort the commit
-    if [ -f "$SCRIPTPATH/$hook" ]; then
-        "$SCRIPTPATH/$hook"
-        if [ $? != 0 ]; then
-            exit 1
-        fi
-    else
-        echo "Error: file $hook not found."
-        echo "Aborting commit. Make sure the hook is in $SCRIPTPATH and executable."
-        echo "You can disable it by removing it from the list in $SCRIPT."
-        echo "You can skip all pre-commit hooks with --no-verify (not recommended)."
-        exit 1
-    fi
-done

misc/hooks/pre-commit-black

@@ -1,202 +0,0 @@
-#!/usr/bin/env bash
-
-# git pre-commit hook that runs a black stylecheck.
-# Based on pre-commit-clang-format.
-
-##################################################################
-# SETTINGS
-# Set path to black binary.
-BLACK=`which black 2>/dev/null`
-BLACK_OPTIONS="-l 120"
-
-# Remove any older patches from previous commits. Set to true or false.
-DELETE_OLD_PATCHES=false
-
-# File types to parse.
-FILE_NAMES="SConstruct SCsub"
-FILE_EXTS=".py"
-
-# Use pygmentize instead of cat to parse diff with highlighting.
-# Install it with `pip install pygments` (Linux) or `easy_install Pygments` (Mac)
-PYGMENTIZE=`which pygmentize 2>/dev/null`
-if [ ! -z "$PYGMENTIZE" ]; then
-  READER="pygmentize -l diff"
-else
-  READER=cat
-fi
-
-# Path to zenity
-ZENITY=`which zenity 2>/dev/null`
-
-# Path to xmessage
-XMSG=`which xmessage 2>/dev/null`
-
-# Path to powershell (Windows only)
-PWSH=`which powershell 2>/dev/null`
-
-##################################################################
-# There should be no need to change anything below this line.
-
-. "$(dirname -- "$0")/canonicalize_filename.sh"
-
-# exit on error
-set -e
-
-# check whether the given file matches any of the set extensions
-matches_name_or_extension() {
-    local filename=$(basename "$1")
-    local extension=".${filename##*.}"
-
-    for name in $FILE_NAMES; do [[ "$name" == "$filename" ]] && return 0; done
-    for ext in $FILE_EXTS; do [[ "$ext" == "$extension" ]] && return 0; done
-
-    return 1
-}
-
-# necessary check for initial commit
-if git rev-parse --verify HEAD >/dev/null 2>&1 ; then
-    against=HEAD
-else
-    # Initial commit: diff against an empty tree object
-    against=4b825dc642cb6eb9a060e54bf8d69288fbee4904
-fi
-
-if [ ! -x "$BLACK" ] ; then
-    if [ ! -t 1 ] ; then
-        if [ -x "$ZENITY" ] ; then
-            $ZENITY --error --title="Error" --text="Error: black executable not found."
-            exit 1
-        elif [ -x "$XMSG" ] ; then
-            $XMSG -center -title "Error" "Error: black executable not found."
-            exit 1
-        elif [ \( \( "$OSTYPE" = "msys" \) -o \( "$OSTYPE" = "win32" \) \) -a \( -x "$PWSH" \) ]; then
-            winmessage="$(canonicalize_filename "./.git/hooks/winmessage.ps1")"
-            $PWSH -noprofile -executionpolicy bypass -file "$winmessage" -center -title "Error" --text "Error: black executable not found."
-            exit 1
-        fi
-    fi
-    printf "Error: black executable not found.\n"
-    printf "Set the correct path in $(canonicalize_filename "$0").\n"
-    exit 1
-fi
-
-# create a random filename to store our generated patch
-prefix="pre-commit-black"
-suffix="$(date +%s)"
-patch="/tmp/$prefix-$suffix.patch"
-
-# clean up any older black patches
-$DELETE_OLD_PATCHES && rm -f /tmp/$prefix*.patch
-
-# create one patch containing all changes to the files
-git diff-index --cached --diff-filter=ACMR --name-only $against -- | while read file;
-do
-    # ignore thirdparty files
-    if grep -q "thirdparty" <<< $file; then
-        continue;
-    fi
-
-    # ignore file if not one of the names or extensions we handle
-    if ! matches_name_or_extension "$file"; then
-        continue;
-    fi
-
-    # format our file with black, create a patch with diff and append it to our $patch
-    # The sed call is necessary to transform the patch from
-    #    --- $file timestamp
-    #    +++ $file timestamp
-    # to both lines working on the same file and having a/ and b/ prefix.
-    # Else it can not be applied with 'git apply'.
-    "$BLACK" "$BLACK_OPTIONS" --diff "$file" | \
-        sed -e "1s|--- |--- a/|" -e "2s|+++ |+++ b/|" >> "$patch"
-done
-
-# if no patch has been generated all is ok, clean up the file stub and exit
-if [ ! -s "$patch" ] ; then
-    printf "Files in this commit comply with the black formatter rules.\n"
-    rm -f "$patch"
-    exit 0
-fi
-
-# a patch has been created, notify the user and exit
-printf "\nThe following differences were found between the code to commit "
-printf "and the black formatter rules:\n\n"
-
-if [ -t 1 ] ; then
-    $READER "$patch"
-    printf "\n"
-    # Allows us to read user input below, assigns stdin to keyboard
-    exec < /dev/tty
-    terminal="1"
-else
-    cat "$patch"
-    printf "\n"
-    # Allows non zero zenity/powershell output
-    set +e
-    terminal="0"
-fi
-
-while true; do
-    if [ $terminal = "0" ] ; then
-        if [ -x "$ZENITY" ] ; then
-            choice=$($ZENITY --text-info --filename="$patch" --width=800 --height=600 --title="Do you want to apply that patch?" --ok-label="Apply" --cancel-label="Do not apply" --extra-button="Apply and stage")
-            if [ "$?" = "0" ] ; then
-                yn="Y"
-            else
-                if [ "$choice" = "Apply and stage" ] ; then
-                    yn="S"
-                else
-                    yn="N"
-                fi
-            fi
-        elif [ -x "$XMSG" ] ; then
-            $XMSG -file "$patch" -buttons "Apply":100,"Apply and stage":200,"Do not apply":0 -center -default "Do not apply" -geometry 800x600 -title "Do you want to apply that patch?"
-            choice=$?
-            if [ "$choice" = "100" ] ; then
-                yn="Y"
-            elif [ "$choice" = "200" ] ; then
-                yn="S"
-            else
-                yn="N"
-            fi
-        elif [ \( \( "$OSTYPE" = "msys" \) -o \( "$OSTYPE" = "win32" \) \) -a \( -x "$PWSH" \) ]; then
-            winmessage="$(canonicalize_filename "./.git/hooks/winmessage.ps1")"
-            $PWSH -noprofile -executionpolicy bypass -file "$winmessage" -file "$patch" -buttons "Apply":100,"Apply and stage":200,"Do not apply":0 -center -default "Do not apply" -geometry 800x600 -title "Do you want to apply that patch?"
-            choice=$?
-            if [ "$choice" = "100" ] ; then
-                yn="Y"
-            elif [ "$choice" = "200" ] ; then
-                yn="S"
-            else
-                yn="N"
-            fi
-        else
-            printf "Error: zenity, xmessage, or powershell executable not found.\n"
-            exit 1
-        fi
-    else
-        read -p "Do you want to apply that patch (Y - Apply, N - Do not apply, S - Apply and stage files)? [Y/N/S] " yn
-    fi
-    case $yn in
-        [Yy] ) git apply $patch;
-        printf "The patch was applied. You can now stage the changes and commit again.\n\n";
-        break
-        ;;
-        [Nn] ) printf "\nYou can apply these changes with:\n  git apply $patch\n";
-        printf "(may need to be called from the root directory of your repository)\n";
-        printf "Aborting commit. Apply changes and commit again or skip checking with";
-        printf " --no-verify (not recommended).\n\n";
-        break
-        ;;
-        [Ss] ) git apply $patch;
-        git diff-index --cached --diff-filter=ACMR --name-only $against -- | while read file;
-        do git add $file;
-        done
-        printf "The patch was applied and the changed files staged. You can now commit.\n\n";
-        break
-        ;;
-        * ) echo "Please answer yes or no."
-        ;;
-    esac
-done
-exit 1 # we don't commit in any case

misc/hooks/pre-commit-clang-format

@@ -1,242 +0,0 @@
-#!/usr/bin/env bash
-
-# git pre-commit hook that runs a clang-format stylecheck.
-# Features:
-#  - abort commit when commit does not comply with the style guidelines
-#  - create a patch of the proposed style changes
-# Modifications for clang-format by rene.milk@wwu.de
-
-# This file is part of a set of unofficial pre-commit hooks available
-# at github.
-# Link:    https://github.com/githubbrowser/Pre-commit-hooks
-# Contact: David Martin, david.martin.mailbox@googlemail.com
-
-# Some quality of life modifications made for Godot Engine.
-
-##################################################################
-# SETTINGS
-# Set path to clang-format binary.
-CLANG_FORMAT=`which clang-format 2>/dev/null`
-
-# Remove any older patches from previous commits. Set to true or false.
-DELETE_OLD_PATCHES=false
-
-# Only parse files with the extensions in FILE_EXTS. Set to true or false.
-# If false every changed file in the commit will be parsed with clang-format.
-# If true only files matching one of the extensions are parsed with clang-format.
-PARSE_EXTS=true
-
-# File types to parse. Only effective when PARSE_EXTS is true.
-FILE_EXTS=".c .h .cpp .hpp .cc .hh .cxx .m .mm .inc .java .glsl"
-
-# Use pygmentize instead of cat to parse diff with highlighting.
-# Install it with `pip install pygments` (Linux) or `easy_install Pygments` (Mac)
-PYGMENTIZE=`which pygmentize 2>/dev/null`
-if [ ! -z "$PYGMENTIZE" ]; then
-  READER="pygmentize -l diff"
-else
-  READER=cat
-fi
-
-# Path to zenity
-ZENITY=`which zenity 2>/dev/null`
-
-# Path to xmessage
-XMSG=`which xmessage 2>/dev/null`
-
-# Path to powershell (Windows only)
-PWSH=`which powershell 2>/dev/null`
-
-##################################################################
-# There should be no need to change anything below this line.
-
-. "$(dirname -- "$0")/canonicalize_filename.sh"
-
-# exit on error
-set -e
-
-# check whether the given file matches any of the set extensions
-matches_extension() {
-    local filename=$(basename "$1")
-    local extension=".${filename##*.}"
-    local ext
-
-    for ext in $FILE_EXTS; do [[ "$ext" == "$extension" ]] && return 0; done
-
-    return 1
-}
-
-# necessary check for initial commit
-if git rev-parse --verify HEAD >/dev/null 2>&1 ; then
-    against=HEAD
-else
-    # Initial commit: diff against an empty tree object
-    against=4b825dc642cb6eb9a060e54bf8d69288fbee4904
-fi
-
-# To get consistent formatting, we recommend contributors to use the same
-# clang-format version as CI.
-RECOMMENDED_CLANG_FORMAT_MAJOR_MIN="12"
-RECOMMENDED_CLANG_FORMAT_MAJOR_MAX="13"
-
-if [ ! -x "$CLANG_FORMAT" ] ; then
-	message="Error: clang-format executable not found. Please install clang-format $RECOMMENDED_CLANG_FORMAT_MAJOR_MAX."
-
-    if [ ! -t 1 ] ; then
-        if [ -x "$ZENITY" ] ; then
-            $ZENITY --error --title="Error" --text="$message"
-            exit 1
-        elif [ -x "$XMSG" ] ; then
-            $XMSG -center -title "Error" "$message"
-            exit 1
-        elif [ \( \( "$OSTYPE" = "msys" \) -o \( "$OSTYPE" = "win32" \) \) -a \( -x "$PWSH" \) ]; then
-            winmessage="$(canonicalize_filename "./.git/hooks/winmessage.ps1")"
-            $PWSH -noprofile -executionpolicy bypass -file "$winmessage" -center -title "Error" --text "$message"
-            exit 1
-        fi
-    fi
-    printf "$message\n"
-    printf "Set the correct path in $(canonicalize_filename "$0").\n"
-    exit 1
-fi
-
-# The returned string can be inconsistent depending on where clang-format comes from.
-# Example output strings reported by `clang-format --version`:
-# - Ubuntu: "Ubuntu clang-format version 11.0.0-2"
-# - Fedora: "clang-format version 11.0.0 (Fedora 11.0.0-2.fc33)"
-CLANG_FORMAT_VERSION="$(clang-format --version | sed "s/[^0-9\.]*\([0-9\.]*\).*/\1/")"
-CLANG_FORMAT_MAJOR="$(echo "$CLANG_FORMAT_VERSION" | cut -d. -f1)"
-
-if [[ "$CLANG_FORMAT_MAJOR" -lt "$RECOMMENDED_CLANG_FORMAT_MAJOR_MIN" || "$CLANG_FORMAT_MAJOR" -gt "$RECOMMENDED_CLANG_FORMAT_MAJOR_MAX" ]]; then
-    echo "Warning: Your clang-format binary is the wrong version ($CLANG_FORMAT_VERSION, expected between $RECOMMENDED_CLANG_FORMAT_MAJOR_MIN and $RECOMMENDED_CLANG_FORMAT_MAJOR_MAX)."
-    echo "         Consider upgrading or downgrading clang-format as formatting may not be applied correctly."
-fi
-
-# create a random filename to store our generated patch
-prefix="pre-commit-clang-format"
-suffix="$(date +%s)"
-patch="/tmp/$prefix-$suffix.patch"
-
-# clean up any older clang-format patches
-$DELETE_OLD_PATCHES && rm -f /tmp/$prefix*.patch
-
-# create one patch containing all changes to the files
-git diff-index --cached --diff-filter=ACMR --name-only $against -- | while read file;
-do
-    # ignore thirdparty files
-    if grep -q "thirdparty" <<< $file; then
-        continue;
-    fi
-    if grep -q "platform/android/java/lib/src/com" <<< $file; then
-        continue;
-    fi
-    if grep -q "\-so_wrap." <<< $file; then
-        continue;
-    fi
-
-    # ignore file if we do check for file extensions and the file
-    # does not match any of the extensions specified in $FILE_EXTS
-    if $PARSE_EXTS && ! matches_extension "$file"; then
-        continue;
-    fi
-
-    # clang-format our sourcefile, create a patch with diff and append it to our $patch
-    # The sed call is necessary to transform the patch from
-    #    --- $file timestamp
-    #    +++ - timestamp
-    # to both lines working on the same file and having a/ and b/ prefix.
-    # Else it can not be applied with 'git apply'.
-    "$CLANG_FORMAT" -style=file "$file" --Wno-error=unknown | \
-        diff -u "$file" - | \
-        sed -e "1s|--- |--- a/|" -e "2s|+++ -|+++ b/$file|" >> "$patch"
-done
-
-# if no patch has been generated all is ok, clean up the file stub and exit
-if [ ! -s "$patch" ] ; then
-    printf "Files in this commit comply with the clang-format rules.\n"
-    rm -f "$patch"
-    exit 0
-fi
-
-# a patch has been created, notify the user and exit
-printf "\nThe following differences were found between the code to commit "
-printf "and the clang-format rules:\n\n"
-
-if [ -t 1 ] ; then
-    $READER "$patch"
-    printf "\n"
-    # Allows us to read user input below, assigns stdin to keyboard
-    exec < /dev/tty
-    terminal="1"
-else
-    cat "$patch"
-    printf "\n"
-    # Allows non zero zenity/powershell output
-    set +e
-    terminal="0"
-fi
-
-while true; do
-    if [ $terminal = "0" ] ; then
-        if [ -x "$ZENITY" ] ; then
-            choice=$($ZENITY --text-info --filename="$patch" --width=800 --height=600 --title="Do you want to apply that patch?" --ok-label="Apply" --cancel-label="Do not apply" --extra-button="Apply and stage")
-            if [ "$?" = "0" ] ; then
-                yn="Y"
-            else
-                if [ "$choice" = "Apply and stage" ] ; then
-                    yn="S"
-                else
-                    yn="N"
-                fi
-            fi
-        elif [ -x "$XMSG" ] ; then
-            $XMSG -file "$patch" -buttons "Apply":100,"Apply and stage":200,"Do not apply":0 -center -default "Do not apply" -geometry 800x600 -title "Do you want to apply that patch?"
-            choice=$?
-            if [ "$choice" = "100" ] ; then
-                yn="Y"
-            elif [ "$choice" = "200" ] ; then
-                yn="S"
-            else
-                yn="N"
-            fi
-        elif [ \( \( "$OSTYPE" = "msys" \) -o \( "$OSTYPE" = "win32" \) \) -a \( -x "$PWSH" \) ]; then
-            winmessage="$(canonicalize_filename "./.git/hooks/winmessage.ps1")"
-            $PWSH -noprofile -executionpolicy bypass -file "$winmessage" -file "$patch" -buttons "Apply":100,"Apply and stage":200,"Do not apply":0 -center -default "Do not apply" -geometry 800x600 -title "Do you want to apply that patch?"
-            choice=$?
-            if [ "$choice" = "100" ] ; then
-                yn="Y"
-            elif [ "$choice" = "200" ] ; then
-                yn="S"
-            else
-                yn="N"
-            fi
-        else
-            printf "Error: zenity, xmessage, or powershell executable not found.\n"
-            exit 1
-        fi
-    else
-        read -p "Do you want to apply that patch (Y - Apply, N - Do not apply, S - Apply and stage files)? [Y/N/S] " yn
-    fi
-    case $yn in
-        [Yy] ) git apply $patch;
-        printf "The patch was applied. You can now stage the changes and commit again.\n\n";
-        break
-        ;;
-        [Nn] ) printf "\nYou can apply these changes with:\n  git apply $patch\n";
-        printf "(may need to be called from the root directory of your repository)\n";
-        printf "Aborting commit. Apply changes and commit again or skip checking with";
-        printf " --no-verify (not recommended).\n\n";
-        break
-        ;;
-        [Ss] ) git apply $patch;
-        git diff-index --cached --diff-filter=ACMR --name-only $against -- | while read file;
-        do git add $file;
-        done
-        printf "The patch was applied and the changed files staged. You can now commit.\n\n";
-        break
-        ;;
-        * ) echo "Please answer yes or no."
-        ;;
-    esac
-done
-exit 1 # we don't commit in any case

misc/hooks/winmessage.ps1

@@ -1,103 +0,0 @@
-Param (
-	[string]$file = "",
-	[string]$text = "",
-	[string]$buttons = "OK:0",
-	[string]$default = "",
-	[switch]$nearmouse = $false,
-	[switch]$center = $false,
-	[string]$geometry = "",
-	[int32]$timeout = 0,
-	[string]$title = "Message"
-)
-Add-Type -assembly System.Windows.Forms
-
-$global:Result = 0
-
-$main_form = New-Object System.Windows.Forms.Form
-$main_form.Text = $title
-
-$geometry_data = $geometry.Split("+")
-if ($geometry_data.Length -ge 1) {
-	$size_data = $geometry_data[0].Split("x")
-	if ($size_data.Length -eq 2) {
-		$main_form.Width = $size_data[0]
-		$main_form.Height = $size_data[1]
-	}
-}
-if ($geometry_data.Length -eq 3) {
-	$main_form.StartPosition = [System.Windows.Forms.FormStartPosition]::Manual
-	$main_form.Location = New-Object System.Drawing.Point($geometry_data[1], $geometry_data[2])
-}
-if ($nearmouse) {
-	$main_form.StartPosition = [System.Windows.Forms.FormStartPosition]::Manual
-	$main_form.Location = System.Windows.Forms.Cursor.Position
-}
-if ($center) {
-	$main_form.StartPosition = [System.Windows.Forms.FormStartPosition]::CenterScreen
-}
-
-$main_form.SuspendLayout()
-
-$button_panel = New-Object System.Windows.Forms.FlowLayoutPanel
-$button_panel.SuspendLayout()
-$button_panel.FlowDirection = [System.Windows.Forms.FlowDirection]::RightToLeft
-$button_panel.Dock = [System.Windows.Forms.DockStyle]::Bottom
-$button_panel.Autosize = $true
-
-if ($file -ne "") {
-	$text = [IO.File]::ReadAllText($file).replace("`n", "`r`n")
-}
-
-if ($text -ne "") {
-	$text_box = New-Object System.Windows.Forms.TextBox
-	$text_box.Multiline = $true
-	$text_box.ReadOnly = $true
-	$text_box.Autosize = $true
-	$text_box.Text = $text
-	$text_box.Select(0,0)
-	$text_box.Dock = [System.Windows.Forms.DockStyle]::Fill
-	$main_form.Controls.Add($text_box)
-}
-
-$buttons_array = $buttons.Split(",")
-foreach ($button in $buttons_array) {
-	$button_data = $button.Split(":")
-	$button_ctl = New-Object System.Windows.Forms.Button
-	if ($button_data.Length -eq 2) {
-		$button_ctl.Tag = $button_data[1]
-	} else {
-		$button_ctl.Tag = 100 + $buttons_array.IndexOf($button)
-	}
-	if ($default -eq $button_data[0]) {
-		$main_form.AcceptButton = $button_ctl
-	}
-	$button_ctl.Autosize = $true
-	$button_ctl.Text = $button_data[0]
-	$button_ctl.Add_Click(
-		{
-			Param($sender)
-			$global:Result = $sender.Tag
-			$main_form.Close()
-		}
-	)
-	$button_panel.Controls.Add($button_ctl)
-}
-$main_form.Controls.Add($button_panel)
-
-$button_panel.ResumeLayout($false)
-$main_form.ResumeLayout($false)
-
-if ($timeout -gt 0) {
-	$timer = New-Object System.Windows.Forms.Timer
-	$timer.Add_Tick(
-		{
-			$global:Result = 0
-			$main_form.Close()
-		}
-	)
-	$timer.Interval = $timeout
-	$timer.Start()
-}
-$dlg_res = $main_form.ShowDialog()
-
-[Environment]::Exit($global:Result)

misc/scripts/black_format.sh

@@ -1,25 +0,0 @@
-#!/usr/bin/env bash
-
-# This script runs black on all Python files in the repo.
-
-set -uo pipefail
-
-# Apply black.
-echo -e "Formatting Python files..."
-PY_FILES=$(git ls-files -- '*SConstruct' '*SCsub' '*.py' ':!:.git/*' ':!:thirdparty/*')
-black -l 120 $PY_FILES
-
-diff=$(git diff --color)
-
-# If no patch has been generated all is OK, clean up, and exit.
-if [ -z "$diff" ] ; then
-    printf "Files in this commit comply with the black style rules.\n"
-    exit 0
-fi
-
-# A patch has been created, notify the user, clean up, and exit.
-printf "\n*** The following differences were found between the code "
-printf "and the formatting rules:\n\n"
-echo "$diff"
-printf "\n*** Aborting, please fix your commit(s) with 'git commit --amend' or 'git rebase -i <hash>'\n"
-exit 1

misc/scripts/check_ci_log.py

@@ -9,8 +9,8 @@ if len(sys.argv) < 2:
 
 fname = sys.argv[1]
 
-fileread = open(fname.strip(), "r")
-file_contents = fileread.read()
+with open(fname.strip(), "r", encoding="utf-8") as fileread:
+    file_contents = fileread.read()
 
 # If find "ERROR: AddressSanitizer:", then happens invalid read or write
 # This is critical bug, so we need to fix this as fast as possible
@@ -25,6 +25,8 @@ if (
     file_contents.find("Program crashed with signal") != -1
     or file_contents.find("Dumping the backtrace") != -1
     or file_contents.find("Segmentation fault (core dumped)") != -1
+    or file_contents.find("Aborted (core dumped)") != -1
+    or file_contents.find("terminate called without an active exception") != -1
 ):
     print("FATAL ERROR: Godot has been crashed.")
     sys.exit(52)

misc/scripts/check_get_file_list.py

@@ -1,12 +1,12 @@
 #!/usr/bin/env python
 
-import os, sys
-
+import os
+import sys
 from pathlib import Path
 
 sys.path.insert(1, os.path.join(os.path.dirname(__file__), "..", ".."))
 
-from binding_generator import get_file_list, generate_bindings
+from binding_generator import generate_bindings, get_file_list
 
 api_filepath = "gdextension/extension_api.json"
 bits = "64"

misc/scripts/clang_format.sh

@@ -1,38 +0,0 @@
-#!/usr/bin/env bash
-
-# This script runs clang-format and fixes copyright headers on all relevant files in the repo.
-# This is the primary script responsible for fixing style violations.
-
-set -uo pipefail
-
-# Loops through all code files tracked by Git.
-git ls-files -- '*.c' '*.h' '*.cpp' '*.hpp' '*.cc' '*.hh' '*.cxx' '*.m' '*.mm' '*.inc' |
-while read -r f; do
-    # Run clang-format.
-    clang-format --Wno-error=unknown -i "$f"
-
-    # Fix copyright headers, but not all files get them.
-    if [[ "$f" == *"inc" ]]; then
-        continue
-    elif [[ "$f" == *"glsl" ]]; then
-        continue
-    elif [[ "$f" == "test/"* ]]; then
-        continue
-    fi
-
-    python misc/scripts/copyright_headers.py "$f"
-done
-
-diff=$(git diff --color)
-
-# If no patch has been generated all is OK, clean up, and exit.
-if [ -z "$diff" ] ; then
-    printf "Files in this commit comply with the clang-tidy style rules.\n"
-    exit 0
-fi
-
-# A patch has been created, notify the user, clean up, and exit.
-printf "\n*** The following changes have been made to comply with the formatting rules:\n\n"
-echo "$diff"
-printf "\n*** Please fix your commit(s) with 'git commit --amend' or 'git rebase -i <hash>'\n"
-exit 1

misc/scripts/codespell.sh

@@ -1,5 +0,0 @@
-#!/bin/sh
-SKIP_LIST="./thirdparty,*.gen.*,*.po,*.pot,package-lock.json,./core/string/locales.h,./DONORS.md,./misc/scripts/codespell.sh"
-IGNORE_LIST="ba,childs,curvelinear,expct,fave,findn,gird,inout,lod,nd,numer,ois,ro,statics,te,varn"
-
-codespell -w -q 3 -S "${SKIP_LIST}" -L "${IGNORE_LIST}"

misc/scripts/copyright_headers.py

@@ -1,6 +1,7 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
+import os
 import sys
 
 header = """\
@@ -35,61 +36,61 @@ header = """\
 /**************************************************************************/
 """
 
-fname = sys.argv[1]
+if len(sys.argv) < 2:
+    print("Invalid usage of copyright_headers.py, it should be called with a path to one or multiple files.")
+    sys.exit(1)
 
-# Handle replacing $filename with actual filename and keep alignment
-fsingle = fname.strip()
-if fsingle.find("/") != -1:
-    fsingle = fsingle[fsingle.rfind("/") + 1 :]
-rep_fl = "$filename"
-rep_fi = fsingle
-len_fl = len(rep_fl)
-len_fi = len(rep_fi)
-# Pad with spaces to keep alignment
-if len_fi < len_fl:
-    for x in range(len_fl - len_fi):
-        rep_fi += " "
-elif len_fl < len_fi:
-    for x in range(len_fi - len_fl):
-        rep_fl += " "
-if header.find(rep_fl) != -1:
-    text = header.replace(rep_fl, rep_fi)
-else:
-    text = header.replace("$filename", fsingle)
-text += "\n"
+for f in sys.argv[1:]:
+    fname = f
 
-# We now have the proper header, so we want to ignore the one in the original file
-# and potentially empty lines and badly formatted lines, while keeping comments that
-# come after the header, and then keep everything non-header unchanged.
-# To do so, we skip empty lines that may be at the top in a first pass.
-# In a second pass, we skip all consecutive comment lines starting with "/*",
-# then we can append the rest (step 2).
+    # Handle replacing $filename with actual filename and keep alignment
+    fsingle = os.path.basename(fname.strip())
+    rep_fl = "$filename"
+    rep_fi = fsingle
+    len_fl = len(rep_fl)
+    len_fi = len(rep_fi)
+    # Pad with spaces to keep alignment
+    if len_fi < len_fl:
+        for x in range(len_fl - len_fi):
+            rep_fi += " "
+    elif len_fl < len_fi:
+        for x in range(len_fi - len_fl):
+            rep_fl += " "
+    if header.find(rep_fl) != -1:
+        text = header.replace(rep_fl, rep_fi)
+    else:
+        text = header.replace("$filename", fsingle)
+    text += "\n"
 
-fileread = open(fname.strip(), "r")
-line = fileread.readline()
-header_done = False
+    # We now have the proper header, so we want to ignore the one in the original file
+    # and potentially empty lines and badly formatted lines, while keeping comments that
+    # come after the header, and then keep everything non-header unchanged.
+    # To do so, we skip empty lines that may be at the top in a first pass.
+    # In a second pass, we skip all consecutive comment lines starting with "/*",
+    # then we can append the rest (step 2).
 
-while line.strip() == "":  # Skip empty lines at the top
-    line = fileread.readline()
+    with open(fname.strip(), "r", encoding="utf-8") as fileread:
+        line = fileread.readline()
+        header_done = False
 
-if line.find("/**********") == -1:  # Godot header starts this way
-    # Maybe starting with a non-Godot comment, abort header magic
-    header_done = True
+        while line.strip() == "" and line != "":  # Skip empty lines at the top
+            line = fileread.readline()
 
-while not header_done:  # Handle header now
-    if line.find("/*") != 0:  # No more starting with a comment
-        header_done = True
-        if line.strip() != "":
+        if line.find("/**********") == -1:  # Godot header starts this way
+            # Maybe starting with a non-Godot comment, abort header magic
+            header_done = True
+
+        while not header_done:  # Handle header now
+            if line.find("/*") != 0:  # No more starting with a comment
+                header_done = True
+                if line.strip() != "":
+                    text += line
+            line = fileread.readline()
+
+        while line != "":  # Dump everything until EOF
             text += line
-    line = fileread.readline()
+            line = fileread.readline()
 
-while line != "":  # Dump everything until EOF
-    text += line
-    line = fileread.readline()
-
-fileread.close()
-
-# Write
-filewrite = open(fname.strip(), "w")
-filewrite.write(text)
-filewrite.close()
+    # Write
+    with open(fname.strip(), "w", encoding="utf-8", newline="\n") as filewrite:
+        filewrite.write(text)

misc/scripts/file_format.py

@@ -0,0 +1,46 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+import sys
+
+if len(sys.argv) < 2:
+    print("Invalid usage of file_format.py, it should be called with a path to one or multiple files.")
+    sys.exit(1)
+
+BOM = b"\xef\xbb\xbf"
+
+changed = []
+invalid = []
+
+for file in sys.argv[1:]:
+    try:
+        with open(file, "rt", encoding="utf-8") as f:
+            original = f.read()
+    except UnicodeDecodeError:
+        invalid.append(file)
+        continue
+
+    if original == "":
+        continue
+
+    revamp = "\n".join([line.rstrip("\n\r\t ") for line in original.splitlines(True)]).rstrip("\n") + "\n"
+
+    new_raw = revamp.encode(encoding="utf-8")
+    if new_raw.startswith(BOM):
+        new_raw = new_raw[len(BOM) :]
+
+    with open(file, "rb") as f:
+        old_raw = f.read()
+
+    if old_raw != new_raw:
+        changed.append(file)
+        with open(file, "wb") as f:
+            f.write(new_raw)
+
+if changed:
+    for file in changed:
+        print(f"FIXED: {file}")
+if invalid:
+    for file in invalid:
+        print(f"REQUIRES MANUAL CHANGES: {file}")
+    sys.exit(1)

misc/scripts/file_format.sh

@@ -1,41 +0,0 @@
-#!/usr/bin/env bash
-
-# This script ensures proper POSIX text file formatting and a few other things.
-# This is supplementary to clang_format.sh and black_format.sh, but should be
-# run before them.
-
-# We need dos2unix and recode.
-if [ ! -x "$(command -v dos2unix)" -o ! -x "$(command -v recode)" ]; then
-    printf "Install 'dos2unix' and 'recode' to use this script.\n"
-fi
-
-set -uo pipefail
-IFS=$'\n\t'
-
-# Loops through all text files tracked by Git.
-git grep -zIl '' |
-while IFS= read -rd '' f; do
-    # Ensure that files are UTF-8 formatted.
-    recode UTF-8 "$f" 2> /dev/null
-    # Ensure that files have LF line endings and do not contain a BOM.
-    dos2unix "$f" 2> /dev/null
-    # Remove trailing space characters and ensures that files end
-    # with newline characters. -l option handles newlines conveniently.
-    perl -i -ple 's/\s*$//g' "$f"
-done
-
-diff=$(git diff --color)
-
-# If no patch has been generated all is OK, clean up, and exit.
-if [ -z "$diff" ] ; then
-    printf "Files in this commit comply with the formatting rules.\n"
-    rm -f patch.patch
-    exit 0
-fi
-
-# A patch has been created, notify the user, clean up, and exit.
-printf "\n*** The following differences were found between the code "
-printf "and the formatting rules:\n\n"
-echo "$diff"
-printf "\n*** Aborting, please fix your commit(s) with 'git commit --amend' or 'git rebase -i <hash>'\n"
-exit 1

misc/scripts/header_guards.py

@@ -0,0 +1,127 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+import sys
+from pathlib import Path
+
+if len(sys.argv) < 2:
+    print("Invalid usage of header_guards.py, it should be called with a path to one or multiple files.")
+    sys.exit(1)
+
+HEADER_CHECK_OFFSET = 30
+HEADER_BEGIN_OFFSET = 31
+HEADER_END_OFFSET = -1
+
+changed = []
+invalid = []
+
+for file in sys.argv[1:]:
+    with open(file, "rt", encoding="utf-8", newline="\n") as f:
+        lines = f.readlines()
+
+    if len(lines) <= HEADER_BEGIN_OFFSET:
+        continue  # Most likely a dummy file.
+
+    if lines[HEADER_CHECK_OFFSET].startswith("#import"):
+        continue  # Early catch obj-c file.
+
+    name = f"GODOT_{Path(file).name}".upper().replace(".", "_").replace("-", "_").replace(" ", "_")
+
+    HEADER_CHECK = f"#ifndef {name}\n"
+    HEADER_BEGIN = f"#define {name}\n"
+    HEADER_END = f"#endif // {name}\n"
+
+    if (
+        lines[HEADER_CHECK_OFFSET] == HEADER_CHECK
+        and lines[HEADER_BEGIN_OFFSET] == HEADER_BEGIN
+        and lines[HEADER_END_OFFSET] == HEADER_END
+    ):
+        continue
+
+    # Guards might exist but with the wrong names.
+    if (
+        lines[HEADER_CHECK_OFFSET].startswith("#ifndef")
+        and lines[HEADER_BEGIN_OFFSET].startswith("#define")
+        and lines[HEADER_END_OFFSET].startswith("#endif")
+    ):
+        lines[HEADER_CHECK_OFFSET] = HEADER_CHECK
+        lines[HEADER_BEGIN_OFFSET] = HEADER_BEGIN
+        lines[HEADER_END_OFFSET] = HEADER_END
+        with open(file, "wt", encoding="utf-8", newline="\n") as f:
+            f.writelines(lines)
+        changed.append(file)
+        continue
+
+    header_check = -1
+    header_begin = -1
+    header_end = -1
+    pragma_once = -1
+    objc = False
+
+    for idx, line in enumerate(lines):
+        if not line.startswith("#"):
+            continue
+        elif line.startswith("#ifndef") and header_check == -1:
+            header_check = idx
+        elif line.startswith("#define") and header_begin == -1:
+            header_begin = idx
+        elif line.startswith("#endif") and header_end == -1:
+            header_end = idx
+        elif line.startswith("#pragma once"):
+            pragma_once = idx
+            break
+        elif line.startswith("#import"):
+            objc = True
+            break
+
+    if objc:
+        continue
+
+    if pragma_once != -1:
+        lines.pop(pragma_once)
+        lines.insert(HEADER_CHECK_OFFSET, HEADER_CHECK)
+        lines.insert(HEADER_BEGIN_OFFSET, HEADER_BEGIN)
+        lines.append("\n")
+        lines.append(HEADER_END)
+        with open(file, "wt", encoding="utf-8", newline="\n") as f:
+            f.writelines(lines)
+        changed.append(file)
+        continue
+
+    if header_check == -1 and header_begin == -1 and header_end == -1:
+        # Guards simply didn't exist
+        lines.insert(HEADER_CHECK_OFFSET, HEADER_CHECK)
+        lines.insert(HEADER_BEGIN_OFFSET, HEADER_BEGIN)
+        lines.append("\n")
+        lines.append(HEADER_END)
+        with open(file, "wt", encoding="utf-8", newline="\n") as f:
+            f.writelines(lines)
+        changed.append(file)
+        continue
+
+    if header_check != -1 and header_begin != -1 and header_end != -1:
+        # All prepends "found", see if we can salvage this.
+        if header_check == header_begin - 1 and header_begin < header_end:
+            lines.pop(header_check)
+            lines.pop(header_begin - 1)
+            lines.pop(header_end - 2)
+            if lines[header_end - 3] == "\n":
+                lines.pop(header_end - 3)
+            lines.insert(HEADER_CHECK_OFFSET, HEADER_CHECK)
+            lines.insert(HEADER_BEGIN_OFFSET, HEADER_BEGIN)
+            lines.append("\n")
+            lines.append(HEADER_END)
+            with open(file, "wt", encoding="utf-8", newline="\n") as f:
+                f.writelines(lines)
+            changed.append(file)
+            continue
+
+    invalid.append(file)
+
+if changed:
+    for file in changed:
+        print(f"FIXED: {file}")
+if invalid:
+    for file in invalid:
+        print(f"REQUIRES MANUAL CHANGES: {file}")
+    sys.exit(1)

misc/scripts/header_guards.sh

@@ -1,60 +0,0 @@
-#!/bin/bash
-
-if [ ! -f "SConstruct" ]; then
-  echo "Warning: This script is intended to be run from the root of the Godot repository."
-  echo "Some of the paths checks may not work as intended from a different folder."
-fi
-
-files_invalid_guard=""
-
-for file in $(find . -name "*.hpp" -print); do
-  # Skip generated files.
-  if [[ "$file" == "./gen/"* || "$file" == "./include/gen/"* ]]; then continue; fi
-  # Skip the test project.
-  if [[ "$file" == "./test/"* ]]; then continue; fi
-
-  bname=$(basename $file .hpp)
-
-  # NOTE: The "GODOT_CPP_" prefix is already used by the generated
-  # bindings, so we can't use that. We'll use "GODOT_" instead.
-  prefix="GODOT_"
-
-  # ^^ is bash builtin for UPPERCASE.
-  guard="${prefix}${bname^^}_HPP"
-
-  # Replaces guards to use computed name.
-  # We also add some \n to make sure there's a proper separation.
-  sed -i $file -e "0,/ifndef/s/#ifndef.*/\n#ifndef $guard/"
-  sed -i $file -e "0,/define/s/#define.*/#define $guard\n/"
-  sed -i $file -e "$ s/#endif.*/\n#endif \/\/ $guard/"
-  # Removes redundant \n added before, if they weren't needed.
-  sed -i $file -e "/^$/N;/^\n$/D"
-
-  # Check that first ifndef (should be header guard) is at the expected position.
-  # If not it can mean we have some code before the guard that should be after.
-  # "31" is the expected line with the copyright header.
-  first_ifndef=$(grep -n -m 1 "ifndef" $file | sed 's/\([0-9]*\).*/\1/')
-  if [[ "$first_ifndef" != "31" ]]; then
-    files_invalid_guard+="$file\n"
-  fi
-done
-
-if [[ ! -z "$files_invalid_guard" ]]; then
-  echo -e "The following files were found to have potentially invalid header guard:\n"
-  echo -e "$files_invalid_guard"
-fi
-
-diff=$(git diff --color)
-
-# If no diff has been generated all is OK, clean up, and exit.
-if [ -z "$diff" ] ; then
-    printf "Files in this commit comply with the header guards formatting rules.\n"
-    exit 0
-fi
-
-# A diff has been created, notify the user, clean up, and exit.
-printf "\n*** The following differences were found between the code "
-printf "and the header guards formatting rules:\n\n"
-echo "$diff"
-printf "\n*** Aborting, please fix your commit(s) with 'git commit --amend' or 'git rebase -i <hash>'\n"
-exit 1

misc/scripts/mypy.ini

@@ -1,11 +0,0 @@
-[mypy]
-ignore_missing_imports = true
-disallow_any_generics = True
-pretty = True
-show_column_numbers = True
-warn_redundant_casts = True
-warn_return_any = True
-warn_unreachable = True
-
-namespace_packages = True
-explicit_package_bases = True

misc/scripts/mypy_check.sh

@@ -1,6 +0,0 @@
-#!/usr/bin/env bash
-
-set -uo pipefail
-
-echo -e "Python: mypy static analysis..."
-mypy --config-file=./misc/scripts/mypy.ini .

pyproject.toml

@@ -0,0 +1,58 @@
+[tool.mypy]
+disallow_any_generics = true
+explicit_package_bases = true
+ignore_missing_imports = true
+namespace_packages = true
+no_implicit_optional = true
+pretty = true
+scripts_are_modules = true
+show_column_numbers = true
+warn_redundant_casts = true
+warn_return_any = true
+warn_unreachable = true
+
+[tool.ruff]
+extend-include = ["SConstruct"]
+line-length = 120
+target-version = "py37"
+
+[tool.ruff.lint]
+extend-select = [
+	"I", # isort
+]
+
+[tool.ruff.lint.per-file-ignores]
+"SConstruct" = [
+	"F821", # Undefined name
+]
+
+[tool.codespell]
+enable-colors = ""
+write-changes = ""
+check-hidden = ""
+quiet-level = 3
+builtin = "clear,rare,en-GB_to_en-US"
+ignore-words-list = """\
+	breaked,
+	cancelled,
+	checkin,
+	curvelinear,
+	doubleclick,
+	expct,
+	findn,
+	gird,
+	hel,
+	inout,
+	labelin,
+	lod,
+	mis,
+	nd,
+	numer,
+	ot,
+	outin,
+	requestor,
+	te,
+	textin,
+	thirdparty,
+	vai
+"""

src/classes/editor_plugin_registration.cpp

@@ -0,0 +1,61 @@
+/**************************************************************************/
+/*  editor_plugin_registration.cpp                                        */
+/**************************************************************************/
+/*                         This file is part of:                          */
+/*                             GODOT ENGINE                               */
+/*                        https://godotengine.org                         */
+/**************************************************************************/
+/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
+/*                                                                        */
+/* Permission is hereby granted, free of charge, to any person obtaining  */
+/* a copy of this software and associated documentation files (the        */
+/* "Software"), to deal in the Software without restriction, including    */
+/* without limitation the rights to use, copy, modify, merge, publish,    */
+/* distribute, sublicense, and/or sell copies of the Software, and to     */
+/* permit persons to whom the Software is furnished to do so, subject to  */
+/* the following conditions:                                              */
+/*                                                                        */
+/* The above copyright notice and this permission notice shall be         */
+/* included in all copies or substantial portions of the Software.        */
+/*                                                                        */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY   */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,   */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE      */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
+/**************************************************************************/
+
+#include <godot_cpp/classes/editor_plugin_registration.hpp>
+
+#include <godot_cpp/variant/variant.hpp>
+
+namespace godot {
+
+Vector<StringName> EditorPlugins::plugin_classes;
+
+void EditorPlugins::add_plugin_class(const StringName &p_class_name) {
+	ERR_FAIL_COND_MSG(plugin_classes.find(p_class_name) != -1, vformat("Editor plugin already registered: %s", p_class_name));
+	plugin_classes.push_back(p_class_name);
+	internal::gdextension_interface_editor_add_plugin(p_class_name._native_ptr());
+}
+
+void EditorPlugins::remove_plugin_class(const StringName &p_class_name) {
+	int index = plugin_classes.find(p_class_name);
+	ERR_FAIL_COND_MSG(index == -1, vformat("Editor plugin is not registered: %s", p_class_name));
+	plugin_classes.remove_at(index);
+	internal::gdextension_interface_editor_remove_plugin(p_class_name._native_ptr());
+}
+
+void EditorPlugins::deinitialize(GDExtensionInitializationLevel p_level) {
+	if (p_level == GDEXTENSION_INITIALIZATION_EDITOR) {
+		for (const StringName &class_name : plugin_classes) {
+			internal::gdextension_interface_editor_remove_plugin(class_name._native_ptr());
+		}
+		plugin_classes.clear();
+	}
+}
+
+} // namespace godot

src/classes/low_level.cpp

@@ -29,6 +29,7 @@
 /**************************************************************************/
 
 #include <godot_cpp/classes/file_access.hpp>
+#include <godot_cpp/classes/image.hpp>
 #include <godot_cpp/classes/worker_thread_pool.hpp>
 #include <godot_cpp/classes/xml_parser.hpp>
 
@@ -36,23 +37,31 @@
 
 namespace godot {
 Error XMLParser::_open_buffer(const uint8_t *p_buffer, size_t p_size) {
-	return (Error)internal::gde_interface->xml_parser_open_buffer(_owner, p_buffer, p_size);
+	return (Error)internal::gdextension_interface_xml_parser_open_buffer(_owner, p_buffer, p_size);
 }
 
 uint64_t FileAccess::get_buffer(uint8_t *p_dst, uint64_t p_length) const {
-	return internal::gde_interface->file_access_get_buffer(_owner, p_dst, p_length);
+	return internal::gdextension_interface_file_access_get_buffer(_owner, p_dst, p_length);
 }
 
 void FileAccess::store_buffer(const uint8_t *p_src, uint64_t p_length) {
-	internal::gde_interface->file_access_store_buffer(_owner, p_src, p_length);
+	internal::gdextension_interface_file_access_store_buffer(_owner, p_src, p_length);
 }
 
 WorkerThreadPool::TaskID WorkerThreadPool::add_native_task(void (*p_func)(void *), void *p_userdata, bool p_high_priority, const String &p_description) {
-	return (TaskID)internal::gde_interface->worker_thread_pool_add_native_task(_owner, p_func, p_userdata, p_high_priority, (GDExtensionConstStringPtr)&p_description);
+	return (TaskID)internal::gdextension_interface_worker_thread_pool_add_native_task(_owner, p_func, p_userdata, p_high_priority, (GDExtensionConstStringPtr)&p_description);
 }
 
 WorkerThreadPool::GroupID WorkerThreadPool::add_native_group_task(void (*p_func)(void *, uint32_t), void *p_userdata, int p_elements, int p_tasks, bool p_high_priority, const String &p_description) {
-	return (GroupID)internal::gde_interface->worker_thread_pool_add_native_group_task(_owner, p_func, p_userdata, p_elements, p_tasks, p_high_priority, (GDExtensionConstStringPtr)&p_description);
+	return (GroupID)internal::gdextension_interface_worker_thread_pool_add_native_group_task(_owner, p_func, p_userdata, p_elements, p_tasks, p_high_priority, (GDExtensionConstStringPtr)&p_description);
+}
+
+uint8_t *Image::ptrw() {
+	return internal::gdextension_interface_image_ptrw(_owner);
+}
+
+const uint8_t *Image::ptr() {
+	return internal::gdextension_interface_image_ptr(_owner);
 }
 
 } // namespace godot

src/classes/wrapped.cpp

@@ -28,28 +28,64 @@
 /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
 /**************************************************************************/
 
+#include <vector>
+
 #include <godot_cpp/classes/wrapped.hpp>
 
 #include <godot_cpp/variant/builtin_types.hpp>
 
 #include <godot_cpp/classes/object.hpp>
 
-namespace godot {
+#include <godot_cpp/core/class_db.hpp>
 
-const StringName *Wrapped::_get_extension_class_name() const {
+namespace godot {
+thread_local const StringName *Wrapped::_constructing_extension_class_name = nullptr;
+thread_local const GDExtensionInstanceBindingCallbacks *Wrapped::_constructing_class_binding_callbacks = nullptr;
+
+const StringName *Wrapped::_get_extension_class_name() {
 	return nullptr;
 }
 
 void Wrapped::_postinitialize() {
-	const StringName *extension_class = _get_extension_class_name();
-	if (extension_class) {
-		godot::internal::gde_interface->object_set_instance(_owner, reinterpret_cast<GDExtensionConstStringNamePtr>(extension_class), this);
+	// Only send NOTIFICATION_POSTINITIALIZE for extension classes.
+	if (_is_extension_class()) {
+		_notificationv(Object::NOTIFICATION_POSTINITIALIZE);
 	}
-	godot::internal::gde_interface->object_set_instance_binding(_owner, godot::internal::token, this, _get_bindings_callbacks());
 }
 
 Wrapped::Wrapped(const StringName p_godot_class) {
-	_owner = godot::internal::gde_interface->classdb_construct_object(reinterpret_cast<GDExtensionConstStringNamePtr>(p_godot_class._native_ptr()));
+#ifdef HOT_RELOAD_ENABLED
+	if (unlikely(Wrapped::recreate_instance)) {
+		RecreateInstance *recreate_data = Wrapped::recreate_instance;
+		RecreateInstance *previous = nullptr;
+		while (recreate_data) {
+			if (recreate_data->wrapper == this) {
+				_owner = recreate_data->owner;
+				if (previous) {
+					previous->next = recreate_data->next;
+				} else {
+					Wrapped::recreate_instance = recreate_data->next;
+				}
+				return;
+			}
+			previous = recreate_data;
+			recreate_data = recreate_data->next;
+		}
+	}
+#endif
+	_owner = godot::internal::gdextension_interface_classdb_construct_object(reinterpret_cast<GDExtensionConstStringNamePtr>(p_godot_class._native_ptr()));
+
+	if (_constructing_extension_class_name) {
+		godot::internal::gdextension_interface_object_set_instance(_owner, reinterpret_cast<GDExtensionConstStringNamePtr>(_constructing_extension_class_name), this);
+		_constructing_extension_class_name = nullptr;
+	}
+
+	if (likely(_constructing_class_binding_callbacks)) {
+		godot::internal::gdextension_interface_object_set_instance_binding(_owner, godot::internal::token, this, _constructing_class_binding_callbacks);
+		_constructing_class_binding_callbacks = nullptr;
+	} else {
+		CRASH_NOW_MSG("BUG: Godot Object created without binding callbacks. Did you forget to use memnew()?");
+	}
 }
 
 Wrapped::Wrapped(GodotObject *p_godot_object) {
@@ -60,4 +96,54 @@ void postinitialize_handler(Wrapped *p_wrapped) {
 	p_wrapped->_postinitialize();
 }
 
+namespace internal {
+
+std::vector<EngineClassRegistrationCallback> &get_engine_class_registration_callbacks() {
+	static std::vector<EngineClassRegistrationCallback> engine_class_registration_callbacks;
+	return engine_class_registration_callbacks;
+}
+
+GDExtensionPropertyInfo *create_c_property_list(const ::godot::List<::godot::PropertyInfo> &plist_cpp, uint32_t *r_size) {
+	GDExtensionPropertyInfo *plist = nullptr;
+	// Linked list size can be expensive to get so we cache it
+	const uint32_t plist_size = plist_cpp.size();
+	if (r_size != nullptr) {
+		*r_size = plist_size;
+	}
+	plist = reinterpret_cast<GDExtensionPropertyInfo *>(memalloc(sizeof(GDExtensionPropertyInfo) * plist_size));
+	unsigned int i = 0;
+	for (const ::godot::PropertyInfo &E : plist_cpp) {
+		plist[i].type = static_cast<GDExtensionVariantType>(E.type);
+		plist[i].name = E.name._native_ptr();
+		plist[i].hint = E.hint;
+		plist[i].hint_string = E.hint_string._native_ptr();
+		plist[i].class_name = E.class_name._native_ptr();
+		plist[i].usage = E.usage;
+		++i;
+	}
+	return plist;
+}
+
+void free_c_property_list(GDExtensionPropertyInfo *plist) {
+	memfree(plist);
+}
+
+void add_engine_class_registration_callback(EngineClassRegistrationCallback p_callback) {
+	get_engine_class_registration_callbacks().push_back(p_callback);
+}
+
+void register_engine_class(const StringName &p_name, const GDExtensionInstanceBindingCallbacks *p_callbacks) {
+	ClassDB::_register_engine_class(p_name, p_callbacks);
+}
+
+void register_engine_classes() {
+	std::vector<EngineClassRegistrationCallback> &engine_class_registration_callbacks = get_engine_class_registration_callbacks();
+	for (EngineClassRegistrationCallback cb : engine_class_registration_callbacks) {
+		cb();
+	}
+	engine_class_registration_callbacks.clear();
+}
+
+} // namespace internal
+
 } // namespace godot

src/core/class_db.cpp

@@ -32,6 +32,7 @@
 
 #include <godot_cpp/core/error_macros.hpp>
 #include <godot_cpp/godot.hpp>
+#include <godot_cpp/templates/vector.hpp>
 
 #include <godot_cpp/core/memory.hpp>
 
@@ -40,6 +41,10 @@
 namespace godot {
 
 std::unordered_map<StringName, ClassDB::ClassInfo> ClassDB::classes;
+std::unordered_map<StringName, const GDExtensionInstanceBindingCallbacks *> ClassDB::instance_binding_callbacks;
+std::vector<StringName> ClassDB::class_register_order;
+std::unordered_map<StringName, Object *> ClassDB::engine_singletons;
+std::mutex ClassDB::engine_singletons_mutex;
 GDExtensionInitializationLevel ClassDB::current_level = GDEXTENSION_INITIALIZATION_CORE;
 
 MethodDefinition D_METHOD(StringName p_name) {
@@ -55,13 +60,13 @@ MethodDefinition D_METHOD(StringName p_name, StringName p_arg1) {
 void ClassDB::add_property_group(const StringName &p_class, const String &p_name, const String &p_prefix) {
 	ERR_FAIL_COND_MSG(classes.find(p_class) == classes.end(), String("Trying to add property '{0}{1}' to non-existing class '{2}'.").format(Array::make(p_prefix, p_name, p_class)));
 
-	internal::gde_interface->classdb_register_extension_class_property_group(internal::library, p_class._native_ptr(), p_name._native_ptr(), p_prefix._native_ptr());
+	internal::gdextension_interface_classdb_register_extension_class_property_group(internal::library, p_class._native_ptr(), p_name._native_ptr(), p_prefix._native_ptr());
 }
 
 void ClassDB::add_property_subgroup(const StringName &p_class, const String &p_name, const String &p_prefix) {
 	ERR_FAIL_COND_MSG(classes.find(p_class) == classes.end(), String("Trying to add property '{0}{1}' to non-existing class '{2}'.").format(Array::make(p_prefix, p_name, p_class)));
 
-	internal::gde_interface->classdb_register_extension_class_property_subgroup(internal::library, p_class._native_ptr(), p_name._native_ptr(), p_prefix._native_ptr());
+	internal::gdextension_interface_classdb_register_extension_class_property_subgroup(internal::library, p_class._native_ptr(), p_name._native_ptr(), p_prefix._native_ptr());
 }
 
 void ClassDB::add_property(const StringName &p_class, const PropertyInfo &p_pinfo, const StringName &p_setter, const StringName &p_getter, int p_index) {
@@ -75,7 +80,7 @@ void ClassDB::add_property(const StringName &p_class, const PropertyInfo &p_pinf
 	if (p_setter != String("")) {
 		setter = get_method(p_class, p_setter);
 
-		ERR_FAIL_COND_MSG(!setter, String("Setter method '{0}::{1}()' not found for property '{2}::{3}'.").format(Array::make(p_class, p_setter, p_class, p_pinfo.name)));
+		ERR_FAIL_NULL_MSG(setter, String("Setter method '{0}::{1}()' not found for property '{2}::{3}'.").format(Array::make(p_class, p_setter, p_class, p_pinfo.name)));
 
 		size_t exp_args = 1 + (p_index >= 0 ? 1 : 0);
 		ERR_FAIL_COND_MSG((int)exp_args != setter->get_argument_count(), String("Setter method '{0}::{1}()' must take a single argument.").format(Array::make(p_class, p_setter)));
@@ -84,7 +89,7 @@ void ClassDB::add_property(const StringName &p_class, const PropertyInfo &p_pinf
 	ERR_FAIL_COND_MSG(p_getter == String(""), String("Getter method must be specified for '{0}::{1}'.").format(Array::make(p_class, p_pinfo.name)));
 
 	MethodBind *getter = get_method(p_class, p_getter);
-	ERR_FAIL_COND_MSG(!getter, String("Getter method '{0}::{1}()' not found for property '{2}::{3}'.").format(Array::make(p_class, p_getter, p_class, p_pinfo.name)));
+	ERR_FAIL_NULL_MSG(getter, String("Getter method '{0}::{1}()' not found for property '{2}::{3}'.").format(Array::make(p_class, p_getter, p_class, p_pinfo.name)));
 	{
 		size_t exp_args = 0 + (p_index >= 0 ? 1 : 0);
 		ERR_FAIL_COND_MSG((int)exp_args != getter->get_argument_count(), String("Getter method '{0}::{1}()' must not take any argument.").format(Array::make(p_class, p_getter)));
@@ -103,15 +108,7 @@ void ClassDB::add_property(const StringName &p_class, const PropertyInfo &p_pinf
 		p_pinfo.usage, // DEFAULT //uint32_t usage;
 	};
 
-	PropertySetGet setget;
-	setget.setter = p_setter;
-	setget.getter = p_getter;
-	setget._setptr = setter;
-	setget._getptr = getter;
-	setget.index = p_index;
-	setget.type = p_pinfo.type;
-
-	internal::gde_interface->classdb_register_extension_class_property(internal::library, info.name._native_ptr(), &prop_info, setget.setter._native_ptr(), setget.getter._native_ptr());
+	internal::gdextension_interface_classdb_register_extension_class_property_indexed(internal::library, info.name._native_ptr(), &prop_info, p_setter._native_ptr(), p_getter._native_ptr(), p_index);
 }
 
 MethodBind *ClassDB::get_method(const StringName &p_class, const StringName &p_method) {
@@ -234,7 +231,7 @@ void ClassDB::bind_method_godot(const StringName &p_class_name, MethodBind *p_me
 		(uint32_t)p_method->get_default_argument_count(), // uint32_t default_argument_count;
 		def_args.data(), // GDExtensionVariantPtr *default_arguments;
 	};
-	internal::gde_interface->classdb_register_extension_class_method(internal::library, p_class_name._native_ptr(), &method_info);
+	internal::gdextension_interface_classdb_register_extension_class_method(internal::library, p_class_name._native_ptr(), &method_info);
 }
 
 void ClassDB::add_signal(const StringName &p_class, const MethodInfo &p_signal) {
@@ -269,7 +266,7 @@ void ClassDB::add_signal(const StringName &p_class, const MethodInfo &p_signal)
 		});
 	}
 
-	internal::gde_interface->classdb_register_extension_class_signal(internal::library, cl.name._native_ptr(), p_signal.name._native_ptr(), parameters.data(), parameters.size());
+	internal::gdextension_interface_classdb_register_extension_class_signal(internal::library, cl.name._native_ptr(), p_signal.name._native_ptr(), parameters.data(), parameters.size());
 }
 
 void ClassDB::bind_integer_constant(const StringName &p_class_name, const StringName &p_enum_name, const StringName &p_constant_name, GDExtensionInt p_constant_value, bool p_is_bitfield) {
@@ -286,7 +283,7 @@ void ClassDB::bind_integer_constant(const StringName &p_class_name, const String
 	type.constant_names.insert(p_constant_name);
 
 	// Register it with Godot
-	internal::gde_interface->classdb_register_extension_class_integer_constant(internal::library, p_class_name._native_ptr(), p_enum_name._native_ptr(), p_constant_name._native_ptr(), p_constant_value, p_is_bitfield);
+	internal::gdextension_interface_classdb_register_extension_class_integer_constant(internal::library, p_class_name._native_ptr(), p_enum_name._native_ptr(), p_constant_name._native_ptr(), p_constant_value, p_is_bitfield);
 }
 GDExtensionClassCallVirtual ClassDB::get_virtual_func(void *p_userdata, GDExtensionConstStringNamePtr p_name) {
 	// This is called by Godot the first time it calls a virtual function, and it caches the result, per object instance.
@@ -314,6 +311,23 @@ GDExtensionClassCallVirtual ClassDB::get_virtual_func(void *p_userdata, GDExtens
 	return nullptr;
 }
 
+const GDExtensionInstanceBindingCallbacks *ClassDB::get_instance_binding_callbacks(const StringName &p_class) {
+	std::unordered_map<StringName, const GDExtensionInstanceBindingCallbacks *>::iterator callbacks_it = instance_binding_callbacks.find(p_class);
+	if (likely(callbacks_it != instance_binding_callbacks.end())) {
+		return callbacks_it->second;
+	}
+
+	// If we don't have an instance binding callback for the given class, find the closest parent where we do.
+	StringName class_name = p_class;
+	do {
+		class_name = get_parent_class(class_name);
+		ERR_FAIL_COND_V_MSG(class_name == StringName(), nullptr, String("Cannot find instance binding callbacks for class '{0}'.").format(Array::make(p_class)));
+		callbacks_it = instance_binding_callbacks.find(class_name);
+	} while (callbacks_it == instance_binding_callbacks.end());
+
+	return callbacks_it->second;
+}
+
 void ClassDB::bind_virtual_method(const StringName &p_class, const StringName &p_method, GDExtensionClassCallVirtual p_call) {
 	std::unordered_map<StringName, ClassInfo>::iterator type_it = classes.find(p_class);
 	ERR_FAIL_COND_MSG(type_it == classes.end(), String("Class '{0}' doesn't exist.").format(Array::make(p_class)));
@@ -326,6 +340,46 @@ void ClassDB::bind_virtual_method(const StringName &p_class, const StringName &p
 	type.virtual_methods[p_method] = p_call;
 }
 
+void ClassDB::add_virtual_method(const StringName &p_class, const MethodInfo &p_method, const Vector<StringName> &p_arg_names) {
+	std::unordered_map<StringName, ClassInfo>::iterator type_it = classes.find(p_class);
+	ERR_FAIL_COND_MSG(type_it == classes.end(), String("Class '{0}' doesn't exist.").format(Array::make(p_class)));
+
+	GDExtensionClassVirtualMethodInfo mi;
+	mi.name = (GDExtensionStringNamePtr)&p_method.name;
+	mi.method_flags = p_method.flags;
+	mi.return_value = p_method.return_val._to_gdextension();
+	mi.return_value_metadata = p_method.return_val_metadata;
+	mi.argument_count = p_method.arguments.size();
+	if (mi.argument_count > 0) {
+		mi.arguments = (GDExtensionPropertyInfo *)memalloc(sizeof(GDExtensionPropertyInfo) * mi.argument_count);
+		mi.arguments_metadata = (GDExtensionClassMethodArgumentMetadata *)memalloc(sizeof(GDExtensionClassMethodArgumentMetadata) * mi.argument_count);
+		for (uint32_t i = 0; i < mi.argument_count; i++) {
+			mi.arguments[i] = p_method.arguments[i]._to_gdextension();
+			mi.arguments_metadata[i] = p_method.arguments_metadata[i];
+		}
+	} else {
+		mi.arguments = nullptr;
+		mi.arguments_metadata = nullptr;
+	}
+
+	if (p_arg_names.size() != mi.argument_count) {
+		WARN_PRINT("Mismatch argument name count for virtual method: " + String(p_class) + "::" + p_method.name);
+	} else {
+		for (int i = 0; i < p_arg_names.size(); i++) {
+			mi.arguments[i].name = (GDExtensionStringNamePtr)&p_arg_names[i];
+		}
+	}
+
+	internal::gdextension_interface_classdb_register_extension_class_virtual_method(internal::library, &p_class, &mi);
+
+	if (mi.arguments) {
+		memfree(mi.arguments);
+	}
+	if (mi.arguments_metadata) {
+		memfree(mi.arguments_metadata);
+	}
+}
+
 void ClassDB::initialize_class(const ClassInfo &p_cl) {
 }
 
@@ -341,17 +395,47 @@ void ClassDB::initialize(GDExtensionInitializationLevel p_level) {
 }
 
 void ClassDB::deinitialize(GDExtensionInitializationLevel p_level) {
-	for (const std::pair<StringName, ClassInfo> pair : classes) {
-		const ClassInfo &cl = pair.second;
+	std::set<StringName> to_erase;
+	for (std::vector<StringName>::reverse_iterator i = class_register_order.rbegin(); i != class_register_order.rend(); ++i) {
+		const StringName &name = *i;
+		const ClassInfo &cl = classes[name];
+
 		if (cl.level != p_level) {
 			continue;
 		}
 
-		internal::gde_interface->classdb_unregister_extension_class(internal::library, cl.name._native_ptr());
+		internal::gdextension_interface_classdb_unregister_extension_class(internal::library, name._native_ptr());
 
-		for (auto method : cl.method_map) {
+		for (const std::pair<const StringName, MethodBind *> &method : cl.method_map) {
 			memdelete(method.second);
 		}
+
+		classes.erase(name);
+		to_erase.insert(name);
+	}
+
+	{
+		// The following is equivalent to c++20 `std::erase_if(class_register_order, [&](const StringName& name){ return to_erase.contains(name); });`
+		std::vector<StringName>::iterator it = std::remove_if(class_register_order.begin(), class_register_order.end(), [&](const StringName &p_name) {
+			return to_erase.count(p_name) > 0;
+		});
+		class_register_order.erase(it, class_register_order.end());
+	}
+
+	if (p_level == GDEXTENSION_INITIALIZATION_CORE) {
+		// Make a new list of the singleton objects, since freeing the instance bindings will lead to
+		// elements getting removed from engine_singletons.
+		std::vector<Object *> singleton_objects;
+		{
+			std::lock_guard<std::mutex> lock(engine_singletons_mutex);
+			singleton_objects.reserve(engine_singletons.size());
+			for (const std::pair<const StringName, Object *> &pair : engine_singletons) {
+				singleton_objects.push_back(pair.second);
+			}
+		}
+		for (std::vector<Object *>::iterator i = singleton_objects.begin(); i != singleton_objects.end(); i++) {
+			internal::gdextension_interface_object_free_instance_binding((*i)->_owner, internal::token);
+		}
 	}
 }
 

src/core/error_macros.cpp

@@ -39,9 +39,9 @@ namespace godot {
 
 void _err_print_error(const char *p_function, const char *p_file, int p_line, const char *p_error, bool p_editor_notify, bool p_is_warning) {
 	if (p_is_warning) {
-		internal::gde_interface->print_warning(p_error, p_function, p_file, p_line, p_editor_notify);
+		internal::gdextension_interface_print_warning(p_error, p_function, p_file, p_line, p_editor_notify);
 	} else {
-		internal::gde_interface->print_error(p_error, p_function, p_file, p_line, p_editor_notify);
+		internal::gdextension_interface_print_error(p_error, p_function, p_file, p_line, p_editor_notify);
 	}
 }
 
@@ -51,9 +51,9 @@ void _err_print_error(const char *p_function, const char *p_file, int p_line, co
 
 void _err_print_error(const char *p_function, const char *p_file, int p_line, const char *p_error, const char *p_message, bool p_editor_notify, bool p_is_warning) {
 	if (p_is_warning) {
-		internal::gde_interface->print_warning_with_message(p_error, p_message, p_function, p_file, p_line, p_editor_notify);
+		internal::gdextension_interface_print_warning_with_message(p_error, p_message, p_function, p_file, p_line, p_editor_notify);
 	} else {
-		internal::gde_interface->print_error_with_message(p_error, p_message, p_function, p_file, p_line, p_editor_notify);
+		internal::gdextension_interface_print_error_with_message(p_error, p_message, p_function, p_file, p_line, p_editor_notify);
 	}
 }
 

src/core/memory.cpp

@@ -36,17 +36,17 @@ namespace godot {
 
 void *Memory::alloc_static(size_t p_bytes, bool p_pad_align) {
 #ifdef DEBUG_ENABLED
-	bool prepad = false; // Alredy pre paded in the engine.
+	bool prepad = false; // Already pre paded in the engine.
 #else
 	bool prepad = p_pad_align;
 #endif
 
-	void *mem = internal::gde_interface->mem_alloc(p_bytes + (prepad ? PAD_ALIGN : 0));
-	ERR_FAIL_COND_V(!mem, nullptr);
+	void *mem = internal::gdextension_interface_mem_alloc(p_bytes + (prepad ? DATA_OFFSET : 0));
+	ERR_FAIL_NULL_V(mem, nullptr);
 
 	if (prepad) {
 		uint8_t *s8 = (uint8_t *)mem;
-		return s8 + PAD_ALIGN;
+		return s8 + DATA_OFFSET;
 	} else {
 		return mem;
 	}
@@ -63,18 +63,18 @@ void *Memory::realloc_static(void *p_memory, size_t p_bytes, bool p_pad_align) {
 	uint8_t *mem = (uint8_t *)p_memory;
 
 #ifdef DEBUG_ENABLED
-	bool prepad = false; // Alredy pre paded in the engine.
+	bool prepad = false; // Already pre paded in the engine.
 #else
 	bool prepad = p_pad_align;
 #endif
 
 	if (prepad) {
-		mem -= PAD_ALIGN;
-		mem = (uint8_t *)internal::gde_interface->mem_realloc(mem, p_bytes + PAD_ALIGN);
-		ERR_FAIL_COND_V(!mem, nullptr);
-		return mem + PAD_ALIGN;
+		mem -= DATA_OFFSET;
+		mem = (uint8_t *)internal::gdextension_interface_mem_realloc(mem, p_bytes + DATA_OFFSET);
+		ERR_FAIL_NULL_V(mem, nullptr);
+		return mem + DATA_OFFSET;
 	} else {
-		return (uint8_t *)internal::gde_interface->mem_realloc(mem, p_bytes);
+		return (uint8_t *)internal::gdextension_interface_mem_realloc(mem, p_bytes);
 	}
 }
 
@@ -82,15 +82,15 @@ void Memory::free_static(void *p_ptr, bool p_pad_align) {
 	uint8_t *mem = (uint8_t *)p_ptr;
 
 #ifdef DEBUG_ENABLED
-	bool prepad = false; // Alredy pre paded in the engine.
+	bool prepad = false; // Already pre paded in the engine.
 #else
 	bool prepad = p_pad_align;
 #endif
 
 	if (prepad) {
-		mem -= PAD_ALIGN;
+		mem -= DATA_OFFSET;
 	}
-	internal::gde_interface->mem_free(mem);
+	internal::gdextension_interface_mem_free(mem);
 }
 
 _GlobalNil::_GlobalNil() {
@@ -103,28 +103,29 @@ _GlobalNil _GlobalNilClass::_nil;
 
 } // namespace godot
 
-void *operator new(size_t p_size, const char *p_description) {
+// p_dummy argument is added to avoid conflicts with the engine functions when both engine and GDExtension are built as a static library on iOS.
+void *operator new(size_t p_size, const char *p_dummy, const char *p_description) {
 	return godot::Memory::alloc_static(p_size);
 }
 
-void *operator new(size_t p_size, void *(*p_allocfunc)(size_t p_size)) {
+void *operator new(size_t p_size, const char *p_dummy, void *(*p_allocfunc)(size_t p_size)) {
 	return p_allocfunc(p_size);
 }
 
 using namespace godot;
 
 #ifdef _MSC_VER
-void operator delete(void *p_mem, const char *p_description) {
+void operator delete(void *p_mem, const char *p_dummy, const char *p_description) {
 	ERR_PRINT("Call to placement delete should not happen.");
 	CRASH_NOW();
 }
 
-void operator delete(void *p_mem, void *(*p_allocfunc)(size_t p_size)) {
+void operator delete(void *p_mem, const char *p_dummy, void *(*p_allocfunc)(size_t p_size)) {
 	ERR_PRINT("Call to placement delete should not happen.");
 	CRASH_NOW();
 }
 
-void operator delete(void *p_mem, void *p_pointer, size_t check, const char *p_description) {
+void operator delete(void *p_mem, const char *p_dummy, void *p_pointer, size_t check, const char *p_description) {
 	ERR_PRINT("Call to placement delete should not happen.");
 	CRASH_NOW();
 }

src/core/method_bind.cpp

@@ -96,7 +96,7 @@ void MethodBind::bind_call(void *p_method_userdata, GDExtensionClassInstancePtr
 	Variant ret = bind->call(p_instance, p_args, p_argument_count, *r_error);
 	// This assumes the return value is an empty Variant, so it doesn't need to call the destructor first.
 	// Since only GDExtensionMethodBind calls this from the Godot side, it should always be the case.
-	internal::gde_interface->variant_new_copy(r_return, ret._native_ptr());
+	internal::gdextension_interface_variant_new_copy(r_return, ret._native_ptr());
 }
 
 void MethodBind::bind_ptrcall(void *p_method_userdata, GDExtensionClassInstancePtr p_instance, const GDExtensionConstTypePtr *p_args, GDExtensionTypePtr r_return) {

src/core/object.cpp

@@ -30,8 +30,96 @@
 
 #include <godot_cpp/core/object.hpp>
 
+#include <godot_cpp/core/class_db.hpp>
+
 namespace godot {
 
+namespace internal {
+
+Object *get_object_instance_binding(GodotObject *p_engine_object) {
+	if (p_engine_object == nullptr) {
+		return nullptr;
+	}
+
+	// Get existing instance binding, if one already exists.
+	GDExtensionObjectPtr instance = gdextension_interface_object_get_instance_binding(p_engine_object, token, nullptr);
+	if (instance != nullptr) {
+		return reinterpret_cast<Object *>(instance);
+	}
+
+	// Otherwise, try to look up the correct binding callbacks.
+	const GDExtensionInstanceBindingCallbacks *binding_callbacks = nullptr;
+	StringName class_name;
+	if (gdextension_interface_object_get_class_name(p_engine_object, library, reinterpret_cast<GDExtensionStringNamePtr>(class_name._native_ptr()))) {
+		binding_callbacks = ClassDB::get_instance_binding_callbacks(class_name);
+	}
+	if (binding_callbacks == nullptr) {
+		binding_callbacks = &Object::_gde_binding_callbacks;
+	}
+
+	return reinterpret_cast<Object *>(gdextension_interface_object_get_instance_binding(p_engine_object, token, binding_callbacks));
+}
+
+TypedArray<Dictionary> convert_property_list(const std::vector<PropertyInfo> &p_list) {
+	TypedArray<Dictionary> va;
+	for (const PropertyInfo &pi : p_list) {
+		va.push_back(Dictionary(pi));
+	}
+	return va;
+}
+
+} // namespace internal
+
+MethodInfo::operator Dictionary() const {
+	Dictionary dict;
+	dict["name"] = name;
+	dict["args"] = internal::convert_property_list(arguments);
+	Array da;
+	for (size_t i = 0; i < default_arguments.size(); i++) {
+		da.push_back(default_arguments[i]);
+	}
+	dict["default_args"] = da;
+	dict["flags"] = flags;
+	dict["id"] = id;
+	Dictionary r = return_val;
+	dict["return"] = r;
+	return dict;
+}
+
+MethodInfo MethodInfo::from_dict(const Dictionary &p_dict) {
+	MethodInfo mi;
+
+	if (p_dict.has("name")) {
+		mi.name = p_dict["name"];
+	}
+	Array args;
+	if (p_dict.has("args")) {
+		args = p_dict["args"];
+	}
+
+	for (int i = 0; i < args.size(); i++) {
+		Dictionary d = args[i];
+		mi.arguments.push_back(PropertyInfo::from_dict(d));
+	}
+	Array defargs;
+	if (p_dict.has("default_args")) {
+		defargs = p_dict["default_args"];
+	}
+	for (int i = 0; i < defargs.size(); i++) {
+		mi.default_arguments.push_back(defargs[i]);
+	}
+
+	if (p_dict.has("return")) {
+		mi.return_val = PropertyInfo::from_dict(p_dict["return"]);
+	}
+
+	if (p_dict.has("flags")) {
+		mi.flags = p_dict["flags"];
+	}
+
+	return mi;
+}
+
 MethodInfo::MethodInfo() :
 		flags(GDEXTENSION_METHOD_FLAG_NORMAL) {}
 

src/godot.cpp

@@ -30,9 +30,11 @@
 
 #include <godot_cpp/godot.hpp>
 
+#include <godot_cpp/classes/editor_plugin_registration.hpp>
 #include <godot_cpp/classes/wrapped.hpp>
 #include <godot_cpp/core/class_db.hpp>
 #include <godot_cpp/core/memory.hpp>
+#include <godot_cpp/core/version.hpp>
 #include <godot_cpp/variant/variant.hpp>
 
 #include <godot_cpp/core/error_macros.hpp>
@@ -41,77 +43,558 @@ namespace godot {
 
 namespace internal {
 
-const GDExtensionInterface *gde_interface = nullptr;
+GDExtensionInterfaceGetProcAddress gdextension_interface_get_proc_address = nullptr;
 GDExtensionClassLibraryPtr library = nullptr;
 void *token = nullptr;
 
+GDExtensionGodotVersion godot_version = { 0, 0, 0, nullptr };
+
+// All of the GDExtension interface functions.
+GDExtensionInterfaceGetGodotVersion gdextension_interface_get_godot_version = nullptr;
+GDExtensionInterfaceMemAlloc gdextension_interface_mem_alloc = nullptr;
+GDExtensionInterfaceMemRealloc gdextension_interface_mem_realloc = nullptr;
+GDExtensionInterfaceMemFree gdextension_interface_mem_free = nullptr;
+GDExtensionInterfacePrintError gdextension_interface_print_error = nullptr;
+GDExtensionInterfacePrintErrorWithMessage gdextension_interface_print_error_with_message = nullptr;
+GDExtensionInterfacePrintWarning gdextension_interface_print_warning = nullptr;
+GDExtensionInterfacePrintWarningWithMessage gdextension_interface_print_warning_with_message = nullptr;
+GDExtensionInterfacePrintScriptError gdextension_interface_print_script_error = nullptr;
+GDExtensionInterfacePrintScriptErrorWithMessage gdextension_interface_print_script_error_with_message = nullptr;
+GDExtensionInterfaceGetNativeStructSize gdextension_interface_get_native_struct_size = nullptr;
+GDExtensionInterfaceVariantNewCopy gdextension_interface_variant_new_copy = nullptr;
+GDExtensionInterfaceVariantNewNil gdextension_interface_variant_new_nil = nullptr;
+GDExtensionInterfaceVariantDestroy gdextension_interface_variant_destroy = nullptr;
+GDExtensionInterfaceVariantCall gdextension_interface_variant_call = nullptr;
+GDExtensionInterfaceVariantCallStatic gdextension_interface_variant_call_static = nullptr;
+GDExtensionInterfaceVariantEvaluate gdextension_interface_variant_evaluate = nullptr;
+GDExtensionInterfaceVariantSet gdextension_interface_variant_set = nullptr;
+GDExtensionInterfaceVariantSetNamed gdextension_interface_variant_set_named = nullptr;
+GDExtensionInterfaceVariantSetKeyed gdextension_interface_variant_set_keyed = nullptr;
+GDExtensionInterfaceVariantSetIndexed gdextension_interface_variant_set_indexed = nullptr;
+GDExtensionInterfaceVariantGet gdextension_interface_variant_get = nullptr;
+GDExtensionInterfaceVariantGetNamed gdextension_interface_variant_get_named = nullptr;
+GDExtensionInterfaceVariantGetKeyed gdextension_interface_variant_get_keyed = nullptr;
+GDExtensionInterfaceVariantGetIndexed gdextension_interface_variant_get_indexed = nullptr;
+GDExtensionInterfaceVariantIterInit gdextension_interface_variant_iter_init = nullptr;
+GDExtensionInterfaceVariantIterNext gdextension_interface_variant_iter_next = nullptr;
+GDExtensionInterfaceVariantIterGet gdextension_interface_variant_iter_get = nullptr;
+GDExtensionInterfaceVariantHash gdextension_interface_variant_hash = nullptr;
+GDExtensionInterfaceVariantRecursiveHash gdextension_interface_variant_recursive_hash = nullptr;
+GDExtensionInterfaceVariantHashCompare gdextension_interface_variant_hash_compare = nullptr;
+GDExtensionInterfaceVariantBooleanize gdextension_interface_variant_booleanize = nullptr;
+GDExtensionInterfaceVariantDuplicate gdextension_interface_variant_duplicate = nullptr;
+GDExtensionInterfaceVariantStringify gdextension_interface_variant_stringify = nullptr;
+GDExtensionInterfaceVariantGetType gdextension_interface_variant_get_type = nullptr;
+GDExtensionInterfaceVariantHasMethod gdextension_interface_variant_has_method = nullptr;
+GDExtensionInterfaceVariantHasMember gdextension_interface_variant_has_member = nullptr;
+GDExtensionInterfaceVariantHasKey gdextension_interface_variant_has_key = nullptr;
+GDExtensionInterfaceVariantGetTypeName gdextension_interface_variant_get_type_name = nullptr;
+GDExtensionInterfaceVariantCanConvert gdextension_interface_variant_can_convert = nullptr;
+GDExtensionInterfaceVariantCanConvertStrict gdextension_interface_variant_can_convert_strict = nullptr;
+GDExtensionInterfaceGetVariantFromTypeConstructor gdextension_interface_get_variant_from_type_constructor = nullptr;
+GDExtensionInterfaceGetVariantToTypeConstructor gdextension_interface_get_variant_to_type_constructor = nullptr;
+GDExtensionInterfaceVariantGetPtrOperatorEvaluator gdextension_interface_variant_get_ptr_operator_evaluator = nullptr;
+GDExtensionInterfaceVariantGetPtrBuiltinMethod gdextension_interface_variant_get_ptr_builtin_method = nullptr;
+GDExtensionInterfaceVariantGetPtrConstructor gdextension_interface_variant_get_ptr_constructor = nullptr;
+GDExtensionInterfaceVariantGetPtrDestructor gdextension_interface_variant_get_ptr_destructor = nullptr;
+GDExtensionInterfaceVariantConstruct gdextension_interface_variant_construct = nullptr;
+GDExtensionInterfaceVariantGetPtrSetter gdextension_interface_variant_get_ptr_setter = nullptr;
+GDExtensionInterfaceVariantGetPtrGetter gdextension_interface_variant_get_ptr_getter = nullptr;
+GDExtensionInterfaceVariantGetPtrIndexedSetter gdextension_interface_variant_get_ptr_indexed_setter = nullptr;
+GDExtensionInterfaceVariantGetPtrIndexedGetter gdextension_interface_variant_get_ptr_indexed_getter = nullptr;
+GDExtensionInterfaceVariantGetPtrKeyedSetter gdextension_interface_variant_get_ptr_keyed_setter = nullptr;
+GDExtensionInterfaceVariantGetPtrKeyedGetter gdextension_interface_variant_get_ptr_keyed_getter = nullptr;
+GDExtensionInterfaceVariantGetPtrKeyedChecker gdextension_interface_variant_get_ptr_keyed_checker = nullptr;
+GDExtensionInterfaceVariantGetConstantValue gdextension_interface_variant_get_constant_value = nullptr;
+GDExtensionInterfaceVariantGetPtrUtilityFunction gdextension_interface_variant_get_ptr_utility_function = nullptr;
+GDExtensionInterfaceStringNewWithLatin1Chars gdextension_interface_string_new_with_latin1_chars = nullptr;
+GDExtensionInterfaceStringNewWithUtf8Chars gdextension_interface_string_new_with_utf8_chars = nullptr;
+GDExtensionInterfaceStringNewWithUtf16Chars gdextension_interface_string_new_with_utf16_chars = nullptr;
+GDExtensionInterfaceStringNewWithUtf32Chars gdextension_interface_string_new_with_utf32_chars = nullptr;
+GDExtensionInterfaceStringNewWithWideChars gdextension_interface_string_new_with_wide_chars = nullptr;
+GDExtensionInterfaceStringNewWithLatin1CharsAndLen gdextension_interface_string_new_with_latin1_chars_and_len = nullptr;
+GDExtensionInterfaceStringNewWithUtf8CharsAndLen gdextension_interface_string_new_with_utf8_chars_and_len = nullptr;
+GDExtensionInterfaceStringNewWithUtf8CharsAndLen2 gdextension_interface_string_new_with_utf8_chars_and_len2 = nullptr;
+GDExtensionInterfaceStringNewWithUtf16CharsAndLen gdextension_interface_string_new_with_utf16_chars_and_len = nullptr;
+GDExtensionInterfaceStringNewWithUtf16CharsAndLen2 gdextension_interface_string_new_with_utf16_chars_and_len2 = nullptr;
+GDExtensionInterfaceStringNewWithUtf32CharsAndLen gdextension_interface_string_new_with_utf32_chars_and_len = nullptr;
+GDExtensionInterfaceStringNewWithWideCharsAndLen gdextension_interface_string_new_with_wide_chars_and_len = nullptr;
+GDExtensionInterfaceStringToLatin1Chars gdextension_interface_string_to_latin1_chars = nullptr;
+GDExtensionInterfaceStringToUtf8Chars gdextension_interface_string_to_utf8_chars = nullptr;
+GDExtensionInterfaceStringToUtf16Chars gdextension_interface_string_to_utf16_chars = nullptr;
+GDExtensionInterfaceStringToUtf32Chars gdextension_interface_string_to_utf32_chars = nullptr;
+GDExtensionInterfaceStringToWideChars gdextension_interface_string_to_wide_chars = nullptr;
+GDExtensionInterfaceStringOperatorIndex gdextension_interface_string_operator_index = nullptr;
+GDExtensionInterfaceStringOperatorIndexConst gdextension_interface_string_operator_index_const = nullptr;
+GDExtensionInterfaceStringOperatorPlusEqString gdextension_interface_string_operator_plus_eq_string = nullptr;
+GDExtensionInterfaceStringOperatorPlusEqChar gdextension_interface_string_operator_plus_eq_char = nullptr;
+GDExtensionInterfaceStringOperatorPlusEqCstr gdextension_interface_string_operator_plus_eq_cstr = nullptr;
+GDExtensionInterfaceStringOperatorPlusEqWcstr gdextension_interface_string_operator_plus_eq_wcstr = nullptr;
+GDExtensionInterfaceStringOperatorPlusEqC32str gdextension_interface_string_operator_plus_eq_c32str = nullptr;
+GDExtensionInterfaceStringResize gdextension_interface_string_resize = nullptr;
+GDExtensionInterfaceStringNameNewWithLatin1Chars gdextension_interface_string_name_new_with_latin1_chars = nullptr;
+GDExtensionInterfaceXmlParserOpenBuffer gdextension_interface_xml_parser_open_buffer = nullptr;
+GDExtensionInterfaceFileAccessStoreBuffer gdextension_interface_file_access_store_buffer = nullptr;
+GDExtensionInterfaceFileAccessGetBuffer gdextension_interface_file_access_get_buffer = nullptr;
+GDExtensionInterfaceWorkerThreadPoolAddNativeGroupTask gdextension_interface_worker_thread_pool_add_native_group_task = nullptr;
+GDExtensionInterfaceWorkerThreadPoolAddNativeTask gdextension_interface_worker_thread_pool_add_native_task = nullptr;
+GDExtensionInterfacePackedByteArrayOperatorIndex gdextension_interface_packed_byte_array_operator_index = nullptr;
+GDExtensionInterfacePackedByteArrayOperatorIndexConst gdextension_interface_packed_byte_array_operator_index_const = nullptr;
+GDExtensionInterfacePackedColorArrayOperatorIndex gdextension_interface_packed_color_array_operator_index = nullptr;
+GDExtensionInterfacePackedColorArrayOperatorIndexConst gdextension_interface_packed_color_array_operator_index_const = nullptr;
+GDExtensionInterfacePackedFloat32ArrayOperatorIndex gdextension_interface_packed_float32_array_operator_index = nullptr;
+GDExtensionInterfacePackedFloat32ArrayOperatorIndexConst gdextension_interface_packed_float32_array_operator_index_const = nullptr;
+GDExtensionInterfacePackedFloat64ArrayOperatorIndex gdextension_interface_packed_float64_array_operator_index = nullptr;
+GDExtensionInterfacePackedFloat64ArrayOperatorIndexConst gdextension_interface_packed_float64_array_operator_index_const = nullptr;
+GDExtensionInterfacePackedInt32ArrayOperatorIndex gdextension_interface_packed_int32_array_operator_index = nullptr;
+GDExtensionInterfacePackedInt32ArrayOperatorIndexConst gdextension_interface_packed_int32_array_operator_index_const = nullptr;
+GDExtensionInterfacePackedInt64ArrayOperatorIndex gdextension_interface_packed_int64_array_operator_index = nullptr;
+GDExtensionInterfacePackedInt64ArrayOperatorIndexConst gdextension_interface_packed_int64_array_operator_index_const = nullptr;
+GDExtensionInterfacePackedStringArrayOperatorIndex gdextension_interface_packed_string_array_operator_index = nullptr;
+GDExtensionInterfacePackedStringArrayOperatorIndexConst gdextension_interface_packed_string_array_operator_index_const = nullptr;
+GDExtensionInterfacePackedVector2ArrayOperatorIndex gdextension_interface_packed_vector2_array_operator_index = nullptr;
+GDExtensionInterfacePackedVector2ArrayOperatorIndexConst gdextension_interface_packed_vector2_array_operator_index_const = nullptr;
+GDExtensionInterfacePackedVector3ArrayOperatorIndex gdextension_interface_packed_vector3_array_operator_index = nullptr;
+GDExtensionInterfacePackedVector3ArrayOperatorIndexConst gdextension_interface_packed_vector3_array_operator_index_const = nullptr;
+GDExtensionInterfacePackedVector4ArrayOperatorIndex gdextension_interface_packed_vector4_array_operator_index = nullptr;
+GDExtensionInterfacePackedVector4ArrayOperatorIndexConst gdextension_interface_packed_vector4_array_operator_index_const = nullptr;
+GDExtensionInterfaceArrayOperatorIndex gdextension_interface_array_operator_index = nullptr;
+GDExtensionInterfaceArrayOperatorIndexConst gdextension_interface_array_operator_index_const = nullptr;
+GDExtensionInterfaceArrayRef gdextension_interface_array_ref = nullptr;
+GDExtensionInterfaceArraySetTyped gdextension_interface_array_set_typed = nullptr;
+GDExtensionInterfaceDictionaryOperatorIndex gdextension_interface_dictionary_operator_index = nullptr;
+GDExtensionInterfaceDictionaryOperatorIndexConst gdextension_interface_dictionary_operator_index_const = nullptr;
+GDExtensionInterfaceObjectMethodBindCall gdextension_interface_object_method_bind_call = nullptr;
+GDExtensionInterfaceObjectMethodBindPtrcall gdextension_interface_object_method_bind_ptrcall = nullptr;
+GDExtensionInterfaceObjectDestroy gdextension_interface_object_destroy = nullptr;
+GDExtensionInterfaceGlobalGetSingleton gdextension_interface_global_get_singleton = nullptr;
+GDExtensionInterfaceObjectGetInstanceBinding gdextension_interface_object_get_instance_binding = nullptr;
+GDExtensionInterfaceObjectSetInstanceBinding gdextension_interface_object_set_instance_binding = nullptr;
+GDExtensionInterfaceObjectFreeInstanceBinding gdextension_interface_object_free_instance_binding = nullptr;
+GDExtensionInterfaceObjectSetInstance gdextension_interface_object_set_instance = nullptr;
+GDExtensionInterfaceObjectGetClassName gdextension_interface_object_get_class_name = nullptr;
+GDExtensionInterfaceObjectCastTo gdextension_interface_object_cast_to = nullptr;
+GDExtensionInterfaceObjectGetInstanceFromId gdextension_interface_object_get_instance_from_id = nullptr;
+GDExtensionInterfaceObjectGetInstanceId gdextension_interface_object_get_instance_id = nullptr;
+GDExtensionInterfaceObjectHasScriptMethod gdextension_interface_object_has_script_method = nullptr;
+GDExtensionInterfaceObjectCallScriptMethod gdextension_interface_object_call_script_method = nullptr;
+GDExtensionInterfaceCallableCustomCreate2 gdextension_interface_callable_custom_create2 = nullptr;
+GDExtensionInterfaceCallableCustomGetUserData gdextension_interface_callable_custom_get_userdata = nullptr;
+GDExtensionInterfaceRefGetObject gdextension_interface_ref_get_object = nullptr;
+GDExtensionInterfaceRefSetObject gdextension_interface_ref_set_object = nullptr;
+GDExtensionInterfaceScriptInstanceCreate3 gdextension_interface_script_instance_create3 = nullptr;
+GDExtensionInterfacePlaceHolderScriptInstanceCreate gdextension_interface_placeholder_script_instance_create = nullptr;
+GDExtensionInterfacePlaceHolderScriptInstanceUpdate gdextension_interface_placeholder_script_instance_update = nullptr;
+GDExtensionInterfaceClassdbConstructObject gdextension_interface_classdb_construct_object = nullptr;
+GDExtensionInterfaceClassdbGetMethodBind gdextension_interface_classdb_get_method_bind = nullptr;
+GDExtensionInterfaceClassdbGetClassTag gdextension_interface_classdb_get_class_tag = nullptr;
+GDExtensionInterfaceClassdbRegisterExtensionClass3 gdextension_interface_classdb_register_extension_class3 = nullptr;
+GDExtensionInterfaceClassdbRegisterExtensionClassMethod gdextension_interface_classdb_register_extension_class_method = nullptr;
+GDExtensionInterfaceClassdbRegisterExtensionClassVirtualMethod gdextension_interface_classdb_register_extension_class_virtual_method = nullptr;
+GDExtensionInterfaceClassdbRegisterExtensionClassIntegerConstant gdextension_interface_classdb_register_extension_class_integer_constant = nullptr;
+GDExtensionInterfaceClassdbRegisterExtensionClassProperty gdextension_interface_classdb_register_extension_class_property = nullptr;
+GDExtensionInterfaceClassdbRegisterExtensionClassPropertyIndexed gdextension_interface_classdb_register_extension_class_property_indexed = nullptr;
+GDExtensionInterfaceClassdbRegisterExtensionClassPropertyGroup gdextension_interface_classdb_register_extension_class_property_group = nullptr;
+GDExtensionInterfaceClassdbRegisterExtensionClassPropertySubgroup gdextension_interface_classdb_register_extension_class_property_subgroup = nullptr;
+GDExtensionInterfaceClassdbRegisterExtensionClassSignal gdextension_interface_classdb_register_extension_class_signal = nullptr;
+GDExtensionInterfaceClassdbUnregisterExtensionClass gdextension_interface_classdb_unregister_extension_class = nullptr;
+GDExtensionInterfaceGetLibraryPath gdextension_interface_get_library_path = nullptr;
+GDExtensionInterfaceEditorAddPlugin gdextension_interface_editor_add_plugin = nullptr;
+GDExtensionInterfaceEditorRemovePlugin gdextension_interface_editor_remove_plugin = nullptr;
+GDExtensionsInterfaceEditorHelpLoadXmlFromUtf8Chars gdextension_interface_editor_help_load_xml_from_utf8_chars = nullptr;
+GDExtensionsInterfaceEditorHelpLoadXmlFromUtf8CharsAndLen gdextension_interface_editor_help_load_xml_from_utf8_chars_and_len = nullptr;
+GDExtensionInterfaceImagePtrw gdextension_interface_image_ptrw = nullptr;
+GDExtensionInterfaceImagePtr gdextension_interface_image_ptr = nullptr;
+
+struct DocData {
+	const char *hash = nullptr;
+	int uncompressed_size = 0;
+	int compressed_size = 0;
+	const unsigned char *data = nullptr;
+
+	inline bool is_valid() const {
+		return hash != nullptr && uncompressed_size > 0 && compressed_size > 0 && data != nullptr;
+	}
+
+	void load_data() const;
+};
+
+static DocData &get_doc_data() {
+	static DocData doc_data;
+	return doc_data;
+}
+
+DocDataRegistration::DocDataRegistration(const char *p_hash, int p_uncompressed_size, int p_compressed_size, const unsigned char *p_data) {
+	DocData &doc_data = get_doc_data();
+	if (doc_data.is_valid()) {
+		printf("ERROR: Attempting to register documentation data when we already have some - discarding.\n");
+		return;
+	}
+	doc_data.hash = p_hash;
+	doc_data.uncompressed_size = p_uncompressed_size;
+	doc_data.compressed_size = p_compressed_size;
+	doc_data.data = p_data;
+}
+
 } // namespace internal
 
-GDExtensionBinding::Callback GDExtensionBinding::init_callback = nullptr;
-GDExtensionBinding::Callback GDExtensionBinding::terminate_callback = nullptr;
-GDExtensionInitializationLevel GDExtensionBinding::minimum_initialization_level = GDEXTENSION_INITIALIZATION_CORE;
+bool GDExtensionBinding::api_initialized = false;
+int GDExtensionBinding::level_initialized[MODULE_INITIALIZATION_LEVEL_MAX] = { 0 };
+GDExtensionBinding::InitDataList GDExtensionBinding::initdata;
 
-GDExtensionBool GDExtensionBinding::init(const GDExtensionInterface *p_interface, GDExtensionClassLibraryPtr p_library, GDExtensionInitialization *r_initialization) {
-	internal::gde_interface = p_interface;
+#define ERR_PRINT_EARLY(m_msg) \
+	internal::gdextension_interface_print_error(m_msg, FUNCTION_STR, __FILE__, __LINE__, false)
+
+#define LOAD_PROC_ADDRESS(m_name, m_type)                                               \
+	internal::gdextension_interface_##m_name = (m_type)p_get_proc_address(#m_name);     \
+	if (!internal::gdextension_interface_##m_name) {                                    \
+		ERR_PRINT_EARLY("Unable to load GDExtension interface function " #m_name "()"); \
+		return false;                                                                   \
+	}
+
+// Partial definition of the legacy interface so we can detect it and show an error.
+typedef struct {
+	uint32_t version_major;
+	uint32_t version_minor;
+	uint32_t version_patch;
+	const char *version_string;
+
+	GDExtensionInterfaceFunctionPtr unused1;
+	GDExtensionInterfaceFunctionPtr unused2;
+	GDExtensionInterfaceFunctionPtr unused3;
+
+	GDExtensionInterfacePrintError print_error;
+	GDExtensionInterfacePrintErrorWithMessage print_error_with_message;
+} LegacyGDExtensionInterface;
+
+GDExtensionBool GDExtensionBinding::init(GDExtensionInterfaceGetProcAddress p_get_proc_address, GDExtensionClassLibraryPtr p_library, InitData *p_init_data, GDExtensionInitialization *r_initialization) {
+	if (!p_init_data || !p_init_data->init_callback) {
+		ERR_FAIL_V_MSG(false, "Initialization callback must be defined.");
+	}
+
+	if (api_initialized) {
+		r_initialization->initialize = initialize_level;
+		r_initialization->deinitialize = deinitialize_level;
+		r_initialization->userdata = p_init_data;
+		r_initialization->minimum_initialization_level = p_init_data->minimum_initialization_level;
+
+		return true;
+	}
+
+	// Make sure we weren't passed the legacy struct.
+	uint32_t *raw_interface = (uint32_t *)(void *)p_get_proc_address;
+	if (raw_interface[0] == 4 && raw_interface[1] == 0) {
+		// Use the legacy interface only to give a nice error.
+		LegacyGDExtensionInterface *legacy_interface = (LegacyGDExtensionInterface *)p_get_proc_address;
+		internal::gdextension_interface_print_error = (GDExtensionInterfacePrintError)legacy_interface->print_error;
+		ERR_PRINT_EARLY("Cannot load a GDExtension built for Godot 4.1+ in Godot 4.0.");
+		return false;
+	}
+
+	// Load the "print_error" function first (needed by the ERR_PRINT_EARLY() macro).
+	internal::gdextension_interface_print_error = (GDExtensionInterfacePrintError)p_get_proc_address("print_error");
+	if (!internal::gdextension_interface_print_error) {
+		printf("ERROR: Unable to load GDExtension interface function print_error().\n");
+		return false;
+	}
+
+	internal::gdextension_interface_get_proc_address = p_get_proc_address;
 	internal::library = p_library;
 	internal::token = p_library;
 
+	LOAD_PROC_ADDRESS(get_godot_version, GDExtensionInterfaceGetGodotVersion);
+	internal::gdextension_interface_get_godot_version(&internal::godot_version);
+
+	// Check that godot-cpp was compiled using an extension_api.json older or at the
+	// same version as the Godot that is loading it.
+	bool compatible;
+	if (internal::godot_version.major != GODOT_VERSION_MAJOR) {
+		compatible = internal::godot_version.major > GODOT_VERSION_MAJOR;
+	} else if (internal::godot_version.minor != GODOT_VERSION_MINOR) {
+		compatible = internal::godot_version.minor > GODOT_VERSION_MINOR;
+	} else {
+#if GODOT_VERSION_PATCH > 0
+		compatible = internal::godot_version.patch >= GODOT_VERSION_PATCH;
+#else
+		// Prevent -Wtype-limits warning due to unsigned comparison.
+		compatible = true;
+#endif
+	}
+	if (!compatible) {
+		// We need to use snprintf() here because vformat() uses Variant, and we haven't loaded
+		// the GDExtension interface far enough to use Variants yet.
+		char msg[128];
+		snprintf(msg, 128, "Cannot load a GDExtension built for Godot %d.%d.%d using an older version of Godot (%d.%d.%d).",
+				GODOT_VERSION_MAJOR, GODOT_VERSION_MINOR, GODOT_VERSION_PATCH,
+				internal::godot_version.major, internal::godot_version.minor, internal::godot_version.patch);
+		ERR_PRINT_EARLY(msg);
+		return false;
+	}
+
+	LOAD_PROC_ADDRESS(mem_alloc, GDExtensionInterfaceMemAlloc);
+	LOAD_PROC_ADDRESS(mem_realloc, GDExtensionInterfaceMemRealloc);
+	LOAD_PROC_ADDRESS(mem_free, GDExtensionInterfaceMemFree);
+	LOAD_PROC_ADDRESS(print_error_with_message, GDExtensionInterfacePrintErrorWithMessage);
+	LOAD_PROC_ADDRESS(print_warning, GDExtensionInterfacePrintWarning);
+	LOAD_PROC_ADDRESS(print_warning_with_message, GDExtensionInterfacePrintWarningWithMessage);
+	LOAD_PROC_ADDRESS(print_script_error, GDExtensionInterfacePrintScriptError);
+	LOAD_PROC_ADDRESS(print_script_error_with_message, GDExtensionInterfacePrintScriptErrorWithMessage);
+	LOAD_PROC_ADDRESS(get_native_struct_size, GDExtensionInterfaceGetNativeStructSize);
+	LOAD_PROC_ADDRESS(variant_new_copy, GDExtensionInterfaceVariantNewCopy);
+	LOAD_PROC_ADDRESS(variant_new_nil, GDExtensionInterfaceVariantNewNil);
+	LOAD_PROC_ADDRESS(variant_destroy, GDExtensionInterfaceVariantDestroy);
+	LOAD_PROC_ADDRESS(variant_call, GDExtensionInterfaceVariantCall);
+	LOAD_PROC_ADDRESS(variant_call_static, GDExtensionInterfaceVariantCallStatic);
+	LOAD_PROC_ADDRESS(variant_evaluate, GDExtensionInterfaceVariantEvaluate);
+	LOAD_PROC_ADDRESS(variant_set, GDExtensionInterfaceVariantSet);
+	LOAD_PROC_ADDRESS(variant_set_named, GDExtensionInterfaceVariantSetNamed);
+	LOAD_PROC_ADDRESS(variant_set_keyed, GDExtensionInterfaceVariantSetKeyed);
+	LOAD_PROC_ADDRESS(variant_set_indexed, GDExtensionInterfaceVariantSetIndexed);
+	LOAD_PROC_ADDRESS(variant_get, GDExtensionInterfaceVariantGet);
+	LOAD_PROC_ADDRESS(variant_get_named, GDExtensionInterfaceVariantGetNamed);
+	LOAD_PROC_ADDRESS(variant_get_keyed, GDExtensionInterfaceVariantGetKeyed);
+	LOAD_PROC_ADDRESS(variant_get_indexed, GDExtensionInterfaceVariantGetIndexed);
+	LOAD_PROC_ADDRESS(variant_iter_init, GDExtensionInterfaceVariantIterInit);
+	LOAD_PROC_ADDRESS(variant_iter_next, GDExtensionInterfaceVariantIterNext);
+	LOAD_PROC_ADDRESS(variant_iter_get, GDExtensionInterfaceVariantIterGet);
+	LOAD_PROC_ADDRESS(variant_hash, GDExtensionInterfaceVariantHash);
+	LOAD_PROC_ADDRESS(variant_recursive_hash, GDExtensionInterfaceVariantRecursiveHash);
+	LOAD_PROC_ADDRESS(variant_hash_compare, GDExtensionInterfaceVariantHashCompare);
+	LOAD_PROC_ADDRESS(variant_booleanize, GDExtensionInterfaceVariantBooleanize);
+	LOAD_PROC_ADDRESS(variant_duplicate, GDExtensionInterfaceVariantDuplicate);
+	LOAD_PROC_ADDRESS(variant_stringify, GDExtensionInterfaceVariantStringify);
+	LOAD_PROC_ADDRESS(variant_get_type, GDExtensionInterfaceVariantGetType);
+	LOAD_PROC_ADDRESS(variant_has_method, GDExtensionInterfaceVariantHasMethod);
+	LOAD_PROC_ADDRESS(variant_has_member, GDExtensionInterfaceVariantHasMember);
+	LOAD_PROC_ADDRESS(variant_has_key, GDExtensionInterfaceVariantHasKey);
+	LOAD_PROC_ADDRESS(variant_get_type_name, GDExtensionInterfaceVariantGetTypeName);
+	LOAD_PROC_ADDRESS(variant_can_convert, GDExtensionInterfaceVariantCanConvert);
+	LOAD_PROC_ADDRESS(variant_can_convert_strict, GDExtensionInterfaceVariantCanConvertStrict);
+	LOAD_PROC_ADDRESS(get_variant_from_type_constructor, GDExtensionInterfaceGetVariantFromTypeConstructor);
+	LOAD_PROC_ADDRESS(get_variant_to_type_constructor, GDExtensionInterfaceGetVariantToTypeConstructor);
+	LOAD_PROC_ADDRESS(variant_get_ptr_operator_evaluator, GDExtensionInterfaceVariantGetPtrOperatorEvaluator);
+	LOAD_PROC_ADDRESS(variant_get_ptr_builtin_method, GDExtensionInterfaceVariantGetPtrBuiltinMethod);
+	LOAD_PROC_ADDRESS(variant_get_ptr_constructor, GDExtensionInterfaceVariantGetPtrConstructor);
+	LOAD_PROC_ADDRESS(variant_get_ptr_destructor, GDExtensionInterfaceVariantGetPtrDestructor);
+	LOAD_PROC_ADDRESS(variant_construct, GDExtensionInterfaceVariantConstruct);
+	LOAD_PROC_ADDRESS(variant_get_ptr_setter, GDExtensionInterfaceVariantGetPtrSetter);
+	LOAD_PROC_ADDRESS(variant_get_ptr_getter, GDExtensionInterfaceVariantGetPtrGetter);
+	LOAD_PROC_ADDRESS(variant_get_ptr_indexed_setter, GDExtensionInterfaceVariantGetPtrIndexedSetter);
+	LOAD_PROC_ADDRESS(variant_get_ptr_indexed_getter, GDExtensionInterfaceVariantGetPtrIndexedGetter);
+	LOAD_PROC_ADDRESS(variant_get_ptr_keyed_setter, GDExtensionInterfaceVariantGetPtrKeyedSetter);
+	LOAD_PROC_ADDRESS(variant_get_ptr_keyed_getter, GDExtensionInterfaceVariantGetPtrKeyedGetter);
+	LOAD_PROC_ADDRESS(variant_get_ptr_keyed_checker, GDExtensionInterfaceVariantGetPtrKeyedChecker);
+	LOAD_PROC_ADDRESS(variant_get_constant_value, GDExtensionInterfaceVariantGetConstantValue);
+	LOAD_PROC_ADDRESS(variant_get_ptr_utility_function, GDExtensionInterfaceVariantGetPtrUtilityFunction);
+	LOAD_PROC_ADDRESS(string_new_with_latin1_chars, GDExtensionInterfaceStringNewWithLatin1Chars);
+	LOAD_PROC_ADDRESS(string_new_with_utf8_chars, GDExtensionInterfaceStringNewWithUtf8Chars);
+	LOAD_PROC_ADDRESS(string_new_with_utf16_chars, GDExtensionInterfaceStringNewWithUtf16Chars);
+	LOAD_PROC_ADDRESS(string_new_with_utf32_chars, GDExtensionInterfaceStringNewWithUtf32Chars);
+	LOAD_PROC_ADDRESS(string_new_with_wide_chars, GDExtensionInterfaceStringNewWithWideChars);
+	LOAD_PROC_ADDRESS(string_new_with_latin1_chars_and_len, GDExtensionInterfaceStringNewWithLatin1CharsAndLen);
+	LOAD_PROC_ADDRESS(string_new_with_utf8_chars_and_len, GDExtensionInterfaceStringNewWithUtf8CharsAndLen);
+	LOAD_PROC_ADDRESS(string_new_with_utf8_chars_and_len2, GDExtensionInterfaceStringNewWithUtf8CharsAndLen2);
+	LOAD_PROC_ADDRESS(string_new_with_utf16_chars_and_len, GDExtensionInterfaceStringNewWithUtf16CharsAndLen);
+	LOAD_PROC_ADDRESS(string_new_with_utf16_chars_and_len2, GDExtensionInterfaceStringNewWithUtf16CharsAndLen2);
+	LOAD_PROC_ADDRESS(string_new_with_utf32_chars_and_len, GDExtensionInterfaceStringNewWithUtf32CharsAndLen);
+	LOAD_PROC_ADDRESS(string_new_with_wide_chars_and_len, GDExtensionInterfaceStringNewWithWideCharsAndLen);
+	LOAD_PROC_ADDRESS(string_to_latin1_chars, GDExtensionInterfaceStringToLatin1Chars);
+	LOAD_PROC_ADDRESS(string_to_utf8_chars, GDExtensionInterfaceStringToUtf8Chars);
+	LOAD_PROC_ADDRESS(string_to_utf16_chars, GDExtensionInterfaceStringToUtf16Chars);
+	LOAD_PROC_ADDRESS(string_to_utf32_chars, GDExtensionInterfaceStringToUtf32Chars);
+	LOAD_PROC_ADDRESS(string_to_wide_chars, GDExtensionInterfaceStringToWideChars);
+	LOAD_PROC_ADDRESS(string_operator_index, GDExtensionInterfaceStringOperatorIndex);
+	LOAD_PROC_ADDRESS(string_operator_index_const, GDExtensionInterfaceStringOperatorIndexConst);
+	LOAD_PROC_ADDRESS(string_operator_plus_eq_string, GDExtensionInterfaceStringOperatorPlusEqString);
+	LOAD_PROC_ADDRESS(string_operator_plus_eq_char, GDExtensionInterfaceStringOperatorPlusEqChar);
+	LOAD_PROC_ADDRESS(string_operator_plus_eq_cstr, GDExtensionInterfaceStringOperatorPlusEqCstr);
+	LOAD_PROC_ADDRESS(string_operator_plus_eq_wcstr, GDExtensionInterfaceStringOperatorPlusEqWcstr);
+	LOAD_PROC_ADDRESS(string_operator_plus_eq_c32str, GDExtensionInterfaceStringOperatorPlusEqC32str);
+	LOAD_PROC_ADDRESS(string_resize, GDExtensionInterfaceStringResize);
+	LOAD_PROC_ADDRESS(string_name_new_with_latin1_chars, GDExtensionInterfaceStringNameNewWithLatin1Chars);
+	LOAD_PROC_ADDRESS(xml_parser_open_buffer, GDExtensionInterfaceXmlParserOpenBuffer);
+	LOAD_PROC_ADDRESS(file_access_store_buffer, GDExtensionInterfaceFileAccessStoreBuffer);
+	LOAD_PROC_ADDRESS(file_access_get_buffer, GDExtensionInterfaceFileAccessGetBuffer);
+	LOAD_PROC_ADDRESS(worker_thread_pool_add_native_group_task, GDExtensionInterfaceWorkerThreadPoolAddNativeGroupTask);
+	LOAD_PROC_ADDRESS(worker_thread_pool_add_native_task, GDExtensionInterfaceWorkerThreadPoolAddNativeTask);
+	LOAD_PROC_ADDRESS(packed_byte_array_operator_index, GDExtensionInterfacePackedByteArrayOperatorIndex);
+	LOAD_PROC_ADDRESS(packed_byte_array_operator_index_const, GDExtensionInterfacePackedByteArrayOperatorIndexConst);
+	LOAD_PROC_ADDRESS(packed_color_array_operator_index, GDExtensionInterfacePackedColorArrayOperatorIndex);
+	LOAD_PROC_ADDRESS(packed_color_array_operator_index_const, GDExtensionInterfacePackedColorArrayOperatorIndexConst);
+	LOAD_PROC_ADDRESS(packed_float32_array_operator_index, GDExtensionInterfacePackedFloat32ArrayOperatorIndex);
+	LOAD_PROC_ADDRESS(packed_float32_array_operator_index_const, GDExtensionInterfacePackedFloat32ArrayOperatorIndexConst);
+	LOAD_PROC_ADDRESS(packed_float64_array_operator_index, GDExtensionInterfacePackedFloat64ArrayOperatorIndex);
+	LOAD_PROC_ADDRESS(packed_float64_array_operator_index_const, GDExtensionInterfacePackedFloat64ArrayOperatorIndexConst);
+	LOAD_PROC_ADDRESS(packed_int32_array_operator_index, GDExtensionInterfacePackedInt32ArrayOperatorIndex);
+	LOAD_PROC_ADDRESS(packed_int32_array_operator_index_const, GDExtensionInterfacePackedInt32ArrayOperatorIndexConst);
+	LOAD_PROC_ADDRESS(packed_int64_array_operator_index, GDExtensionInterfacePackedInt64ArrayOperatorIndex);
+	LOAD_PROC_ADDRESS(packed_int64_array_operator_index_const, GDExtensionInterfacePackedInt64ArrayOperatorIndexConst);
+	LOAD_PROC_ADDRESS(packed_string_array_operator_index, GDExtensionInterfacePackedStringArrayOperatorIndex);
+	LOAD_PROC_ADDRESS(packed_string_array_operator_index_const, GDExtensionInterfacePackedStringArrayOperatorIndexConst);
+	LOAD_PROC_ADDRESS(packed_vector2_array_operator_index, GDExtensionInterfacePackedVector2ArrayOperatorIndex);
+	LOAD_PROC_ADDRESS(packed_vector2_array_operator_index_const, GDExtensionInterfacePackedVector2ArrayOperatorIndexConst);
+	LOAD_PROC_ADDRESS(packed_vector3_array_operator_index, GDExtensionInterfacePackedVector3ArrayOperatorIndex);
+	LOAD_PROC_ADDRESS(packed_vector3_array_operator_index_const, GDExtensionInterfacePackedVector3ArrayOperatorIndexConst);
+	LOAD_PROC_ADDRESS(packed_vector4_array_operator_index, GDExtensionInterfacePackedVector4ArrayOperatorIndex);
+	LOAD_PROC_ADDRESS(packed_vector4_array_operator_index_const, GDExtensionInterfacePackedVector4ArrayOperatorIndexConst);
+	LOAD_PROC_ADDRESS(array_operator_index, GDExtensionInterfaceArrayOperatorIndex);
+	LOAD_PROC_ADDRESS(array_operator_index_const, GDExtensionInterfaceArrayOperatorIndexConst);
+	LOAD_PROC_ADDRESS(array_ref, GDExtensionInterfaceArrayRef);
+	LOAD_PROC_ADDRESS(array_set_typed, GDExtensionInterfaceArraySetTyped);
+	LOAD_PROC_ADDRESS(dictionary_operator_index, GDExtensionInterfaceDictionaryOperatorIndex);
+	LOAD_PROC_ADDRESS(dictionary_operator_index_const, GDExtensionInterfaceDictionaryOperatorIndexConst);
+	LOAD_PROC_ADDRESS(object_method_bind_call, GDExtensionInterfaceObjectMethodBindCall);
+	LOAD_PROC_ADDRESS(object_method_bind_ptrcall, GDExtensionInterfaceObjectMethodBindPtrcall);
+	LOAD_PROC_ADDRESS(object_destroy, GDExtensionInterfaceObjectDestroy);
+	LOAD_PROC_ADDRESS(global_get_singleton, GDExtensionInterfaceGlobalGetSingleton);
+	LOAD_PROC_ADDRESS(object_get_instance_binding, GDExtensionInterfaceObjectGetInstanceBinding);
+	LOAD_PROC_ADDRESS(object_set_instance_binding, GDExtensionInterfaceObjectSetInstanceBinding);
+	LOAD_PROC_ADDRESS(object_free_instance_binding, GDExtensionInterfaceObjectFreeInstanceBinding);
+	LOAD_PROC_ADDRESS(object_set_instance, GDExtensionInterfaceObjectSetInstance);
+	LOAD_PROC_ADDRESS(object_get_class_name, GDExtensionInterfaceObjectGetClassName);
+	LOAD_PROC_ADDRESS(object_cast_to, GDExtensionInterfaceObjectCastTo);
+	LOAD_PROC_ADDRESS(object_get_instance_from_id, GDExtensionInterfaceObjectGetInstanceFromId);
+	LOAD_PROC_ADDRESS(object_get_instance_id, GDExtensionInterfaceObjectGetInstanceId);
+	LOAD_PROC_ADDRESS(object_has_script_method, GDExtensionInterfaceObjectHasScriptMethod);
+	LOAD_PROC_ADDRESS(object_call_script_method, GDExtensionInterfaceObjectCallScriptMethod);
+	LOAD_PROC_ADDRESS(callable_custom_create2, GDExtensionInterfaceCallableCustomCreate2);
+	LOAD_PROC_ADDRESS(callable_custom_get_userdata, GDExtensionInterfaceCallableCustomGetUserData);
+	LOAD_PROC_ADDRESS(ref_get_object, GDExtensionInterfaceRefGetObject);
+	LOAD_PROC_ADDRESS(ref_set_object, GDExtensionInterfaceRefSetObject);
+	LOAD_PROC_ADDRESS(script_instance_create3, GDExtensionInterfaceScriptInstanceCreate3);
+	LOAD_PROC_ADDRESS(placeholder_script_instance_create, GDExtensionInterfacePlaceHolderScriptInstanceCreate);
+	LOAD_PROC_ADDRESS(placeholder_script_instance_update, GDExtensionInterfacePlaceHolderScriptInstanceUpdate);
+	LOAD_PROC_ADDRESS(classdb_construct_object, GDExtensionInterfaceClassdbConstructObject);
+	LOAD_PROC_ADDRESS(classdb_get_method_bind, GDExtensionInterfaceClassdbGetMethodBind);
+	LOAD_PROC_ADDRESS(classdb_get_class_tag, GDExtensionInterfaceClassdbGetClassTag);
+	LOAD_PROC_ADDRESS(classdb_register_extension_class3, GDExtensionInterfaceClassdbRegisterExtensionClass3);
+	LOAD_PROC_ADDRESS(classdb_register_extension_class_method, GDExtensionInterfaceClassdbRegisterExtensionClassMethod);
+	LOAD_PROC_ADDRESS(classdb_register_extension_class_virtual_method, GDExtensionInterfaceClassdbRegisterExtensionClassVirtualMethod);
+	LOAD_PROC_ADDRESS(classdb_register_extension_class_integer_constant, GDExtensionInterfaceClassdbRegisterExtensionClassIntegerConstant);
+	LOAD_PROC_ADDRESS(classdb_register_extension_class_property, GDExtensionInterfaceClassdbRegisterExtensionClassProperty);
+	LOAD_PROC_ADDRESS(classdb_register_extension_class_property_indexed, GDExtensionInterfaceClassdbRegisterExtensionClassPropertyIndexed);
+	LOAD_PROC_ADDRESS(classdb_register_extension_class_property_group, GDExtensionInterfaceClassdbRegisterExtensionClassPropertyGroup);
+	LOAD_PROC_ADDRESS(classdb_register_extension_class_property_subgroup, GDExtensionInterfaceClassdbRegisterExtensionClassPropertySubgroup);
+	LOAD_PROC_ADDRESS(classdb_register_extension_class_signal, GDExtensionInterfaceClassdbRegisterExtensionClassSignal);
+	LOAD_PROC_ADDRESS(classdb_unregister_extension_class, GDExtensionInterfaceClassdbUnregisterExtensionClass);
+	LOAD_PROC_ADDRESS(get_library_path, GDExtensionInterfaceGetLibraryPath);
+	LOAD_PROC_ADDRESS(editor_add_plugin, GDExtensionInterfaceEditorAddPlugin);
+	LOAD_PROC_ADDRESS(editor_remove_plugin, GDExtensionInterfaceEditorRemovePlugin);
+	LOAD_PROC_ADDRESS(editor_help_load_xml_from_utf8_chars, GDExtensionsInterfaceEditorHelpLoadXmlFromUtf8Chars);
+	LOAD_PROC_ADDRESS(editor_help_load_xml_from_utf8_chars_and_len, GDExtensionsInterfaceEditorHelpLoadXmlFromUtf8CharsAndLen);
+	LOAD_PROC_ADDRESS(image_ptrw, GDExtensionInterfaceImagePtrw);
+	LOAD_PROC_ADDRESS(image_ptr, GDExtensionInterfaceImagePtr);
+
 	r_initialization->initialize = initialize_level;
 	r_initialization->deinitialize = deinitialize_level;
-	r_initialization->minimum_initialization_level = minimum_initialization_level;
-
-	ERR_FAIL_COND_V_MSG(init_callback == nullptr, false, "Initialization callback must be defined.");
+	r_initialization->userdata = p_init_data;
+	r_initialization->minimum_initialization_level = p_init_data->minimum_initialization_level;
 
 	Variant::init_bindings();
+	godot::internal::register_engine_classes();
 
+	api_initialized = true;
 	return true;
 }
 
-void GDExtensionBinding::initialize_level(void *userdata, GDExtensionInitializationLevel p_level) {
+#undef LOAD_PROC_ADDRESS
+#undef ERR_PRINT_EARLY
+
+void GDExtensionBinding::initialize_level(void *p_userdata, GDExtensionInitializationLevel p_level) {
+	ERR_FAIL_COND(static_cast<ModuleInitializationLevel>(p_level) >= MODULE_INITIALIZATION_LEVEL_MAX);
 	ClassDB::current_level = p_level;
 
-	if (init_callback) {
-		init_callback(static_cast<ModuleInitializationLevel>(p_level));
+	InitData *init_data = static_cast<InitData *>(p_userdata);
+	if (init_data && init_data->init_callback) {
+		init_data->init_callback(static_cast<ModuleInitializationLevel>(p_level));
 	}
 
-	ClassDB::initialize(p_level);
+	if (level_initialized[p_level] == 0) {
+		ClassDB::initialize(p_level);
+	}
+	level_initialized[p_level]++;
+
+	if ((ModuleInitializationLevel)p_level == MODULE_INITIALIZATION_LEVEL_EDITOR) {
+		const internal::DocData &doc_data = internal::get_doc_data();
+		if (doc_data.is_valid()) {
+			doc_data.load_data();
+		}
+	}
 }
 
-void GDExtensionBinding::deinitialize_level(void *userdata, GDExtensionInitializationLevel p_level) {
+void GDExtensionBinding::deinitialize_level(void *p_userdata, GDExtensionInitializationLevel p_level) {
+	ERR_FAIL_COND(static_cast<ModuleInitializationLevel>(p_level) >= MODULE_INITIALIZATION_LEVEL_MAX);
 	ClassDB::current_level = p_level;
 
-	if (terminate_callback) {
-		terminate_callback(static_cast<ModuleInitializationLevel>(p_level));
+	InitData *init_data = static_cast<InitData *>(p_userdata);
+	if (init_data && init_data->terminate_callback) {
+		init_data->terminate_callback(static_cast<ModuleInitializationLevel>(p_level));
 	}
 
-	ClassDB::deinitialize(p_level);
+	level_initialized[p_level]--;
+	if (level_initialized[p_level] == 0) {
+		EditorPlugins::deinitialize(p_level);
+		ClassDB::deinitialize(p_level);
+	}
+}
+
+void GDExtensionBinding::InitDataList::add(InitData *p_data) {
+	if (data_count == data_capacity) {
+		void *new_ptr = realloc(data, sizeof(InitData *) * (data_capacity + 32));
+		if (new_ptr) {
+			data = (InitData **)(new_ptr);
+			data_capacity += 32;
+		} else {
+			ERR_FAIL_MSG("Unable to allocate memory for extension callbacks.");
+		}
+	}
+	data[data_count++] = p_data;
+}
+
+GDExtensionBinding::InitDataList::~InitDataList() {
+	for (int i = 0; i < data_count; i++) {
+		if (data[i]) {
+			delete data[i];
+		}
+	}
+	if (data) {
+		free(data);
+	}
+}
+
+GDExtensionBinding::InitObject::InitObject(GDExtensionInterfaceGetProcAddress p_get_proc_address, GDExtensionClassLibraryPtr p_library, GDExtensionInitialization *r_initialization) {
+	get_proc_address = p_get_proc_address;
+	library = p_library;
+	initialization = r_initialization;
+	init_data = new InitData();
+	GDExtensionBinding::initdata.add(init_data);
 }
 
 void GDExtensionBinding::InitObject::register_initializer(Callback p_init) const {
-	GDExtensionBinding::init_callback = p_init;
+	init_data->init_callback = p_init;
 }
 
 void GDExtensionBinding::InitObject::register_terminator(Callback p_terminate) const {
-	GDExtensionBinding::terminate_callback = p_terminate;
+	init_data->terminate_callback = p_terminate;
 }
 
 void GDExtensionBinding::InitObject::set_minimum_library_initialization_level(ModuleInitializationLevel p_level) const {
-	GDExtensionBinding::minimum_initialization_level = static_cast<GDExtensionInitializationLevel>(p_level);
+	init_data->minimum_initialization_level = static_cast<GDExtensionInitializationLevel>(p_level);
 }
 
 GDExtensionBool GDExtensionBinding::InitObject::init() const {
-	return GDExtensionBinding::init(gde_interface, library, initialization);
+	return GDExtensionBinding::init(get_proc_address, library, init_data, initialization);
+}
+
+void internal::DocData::load_data() const {
+	PackedByteArray compressed;
+	compressed.resize(compressed_size);
+	memcpy(compressed.ptrw(), data, compressed_size);
+
+	// FileAccess::COMPRESSION_DEFLATE = 1
+	PackedByteArray decompressed = compressed.decompress(uncompressed_size, 1);
+
+	internal::gdextension_interface_editor_help_load_xml_from_utf8_chars_and_len(reinterpret_cast<const char *>(decompressed.ptr()), uncompressed_size);
 }
 
 } // namespace godot
-
-extern "C" {
-
-void GDE_EXPORT initialize_level(void *userdata, GDExtensionInitializationLevel p_level) {
-	godot::GDExtensionBinding::initialize_level(userdata, p_level);
-}
-
-void GDE_EXPORT deinitialize_level(void *userdata, GDExtensionInitializationLevel p_level) {
-	godot::GDExtensionBinding::deinitialize_level(userdata, p_level);
-}
-}