Merge pull request #1836 from dsnopek/4.4-cherrypicks-3

Cherry-picks for the godot-cpp 4.4 branch - 3rd batch

SConstruct

@@ -1,6 +1,11 @@
 #!/usr/bin/env python
 
 import os
+import sys
+
+# Add godot-cpp folder to sys.path, so that we can import local modules.
+sys.path.append(Dir(".").srcnode().abspath)
+
 
 EnsureSConsVersion(4, 0)
 EnsurePythonVersion(3, 8)
@@ -27,7 +32,7 @@ if profile:
     elif os.path.isfile(profile + ".py"):
         customs.append(profile + ".py")
 opts = Variables(customs, ARGUMENTS)
-cpp_tool = Tool("godotcpp", toolpath=["tools"])
+cpp_tool = Tool("godotcpp", toolpath=[Dir("tools").srcnode().abspath])
 cpp_tool.options(opts, env)
 opts.Update(env)
 

cmake/godotcpp.cmake

@@ -319,11 +319,11 @@ function(godotcpp_generate)
     set(DEBUG_FEATURES "$<NOT:$<STREQUAL:${GODOTCPP_TARGET},template_release>>")
     set(HOT_RELOAD "$<IF:${HOT_RELOAD-UNSET},${DEBUG_FEATURES},$<BOOL:${GODOTCPP_USE_HOT_RELOAD}>>")
 
-    # Suffix
+    # Suffix Generator Expression
     string(
         CONCAT
-        GODOTCPP_SUFFIX
-        "$<1:.${SYSTEM_NAME}>"
+        GODOTCPP_SUFFIX_GENEX
+        "$<1:${SYSTEM_NAME}>"
         "$<1:.${GODOTCPP_TARGET}>"
         "$<${IS_DEV_BUILD}:.dev>"
         "$<$<STREQUAL:${GODOTCPP_PRECISION},double>:.double>"
@@ -331,6 +331,8 @@ function(godotcpp_generate)
         # TODO IOS_SIMULATOR
         "$<$<NOT:${THREADS_ENABLED}>:.nothreads>"
     )
+    # The same as above, but with a leading '.' to maintain backwards compatibility.
+    set(GODOTCPP_SUFFIX ".${GODOTCPP_SUFFIX_GENEX}")
 
     # the godot-cpp.* library targets
     add_library(godot-cpp STATIC)
@@ -375,6 +377,7 @@ function(godotcpp_generate)
             GODOTCPP_ARCH           "${ARCH_NAME}"
             GODOTCPP_PRECISION      "${GODOTCPP_PRECISION}"
             GODOTCPP_SUFFIX         "${GODOTCPP_SUFFIX}"
+            GODOTCPP_SUFFIX_GENEX   "${GODOTCPP_SUFFIX_GENEX}"
 
             # Some IDE's respect this property to logically group targets
             FOLDER "godot-cpp"

include/godot_cpp/classes/wrapped.hpp

@@ -111,7 +111,7 @@ protected:
 
 	void _postinitialize();
 
-	Wrapped(const StringName p_godot_class);
+	Wrapped(const StringName &p_godot_class);
 	Wrapped(GodotObject *p_godot_object);
 	virtual ~Wrapped() {}
 

include/godot_cpp/core/defs.hpp

@@ -32,6 +32,7 @@
 
 #include <cstddef>
 #include <cstdint>
+#include <type_traits>
 #include <utility>
 
 namespace godot {

include/godot_cpp/core/math_defs.hpp

@@ -44,6 +44,8 @@ namespace godot {
 #define Math_TAU 6.2831853071795864769252867666
 #define Math_PI 3.1415926535897932384626433833
 #define Math_E 2.7182818284590452353602874714
+#define Math_INF INFINITY
+#define Math_NAN NAN
 
 #ifdef DEBUG_ENABLED
 #define MATH_CHECKS

src/classes/wrapped.cpp

@@ -66,7 +66,7 @@ void Wrapped::_postinitialize() {
 	}
 }
 
-Wrapped::Wrapped(const StringName p_godot_class) {
+Wrapped::Wrapped(const StringName &p_godot_class) {
 #ifdef HOT_RELOAD_ENABLED
 	if (unlikely(Wrapped::_constructing_recreate_owner)) {
 		_owner = Wrapped::_constructing_recreate_owner;

src/godot.cpp

@@ -286,7 +286,7 @@ GDExtensionBool GDExtensionBinding::init(GDExtensionInterfaceGetProcAddress p_ge
 
 	// 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) {
+	if (uintptr_t(p_get_proc_address) % alignof(LegacyGDExtensionInterface) == 0 && 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;

tools/common_compiler_flags.py

@@ -2,6 +2,10 @@ import os
 import subprocess
 
 
+def using_emcc(env):
+    return "emcc" in os.path.basename(env["CC"])
+
+
 def using_clang(env):
     return "clang" in os.path.basename(env["CC"])
 
@@ -89,7 +93,13 @@ def generate(env):
             # Adding dwarf-4 explicitly makes stacktraces work with clang builds,
             # otherwise addr2line doesn't understand them.
             env.Append(CCFLAGS=["-gdwarf-4"])
-            if env.dev_build:
+            if using_emcc(env):
+                # Emscripten only produces dwarf symbols when using "-g3".
+                env.AppendUnique(CCFLAGS=["-g3"])
+                # Emscripten linker needs debug symbols options too.
+                env.AppendUnique(LINKFLAGS=["-gdwarf-4"])
+                env.AppendUnique(LINKFLAGS=["-g3"])
+            elif env.dev_build:
                 env.Append(CCFLAGS=["-g3"])
             else:
                 env.Append(CCFLAGS=["-g2"])

tools/godotcpp.py

@@ -16,12 +16,6 @@ from build_profile import generate_trimmed_api
 from doc_source_generator import scons_generate_doc_source
 
 
-def add_sources(sources, dir, extension):
-    for f in os.listdir(dir):
-        if f.endswith("." + extension):
-            sources.append(dir + "/" + f)
-
-
 def get_cmdline_bool(option, default):
     """We use `ARGUMENTS.get()` to check if options were manually overridden on the command line,
     and SCons' _text2bool helper to convert them to booleans, otherwise they're handled as strings.
@@ -34,7 +28,12 @@ def get_cmdline_bool(option, default):
 
 
 def normalize_path(val, env):
-    return val if os.path.isabs(val) else os.path.join(env.Dir("#").abspath, val)
+    """Normalize a path that was provided by the user on the command line
+    and is thus either an absolute path, or relative to the top level directory (#)
+    where the command was run.
+    """
+    # If val is an absolute path, it will not be joined.
+    return os.path.join(env.Dir("#").abspath, val)
 
 
 def validate_file(key, val, env):
@@ -54,9 +53,10 @@ def validate_parent_dir(key, val, env):
 
 def get_platform_tools_paths(env):
     path = env.get("custom_tools", None)
+    tools_path = env.Dir("tools").srcnode().abspath
     if path is None:
-        return ["tools"]
-    return [normalize_path(path, env), "tools"]
+        return [tools_path]
+    return [normalize_path(path, env), tools_path]
 
 
 def get_custom_platforms(env):
@@ -141,7 +141,12 @@ def scons_emit_files(target, source, env):
     env.Clean(target, [env.File(f) for f in get_file_list(str(source[0]), target[0].abspath, True, True)])
 
     api = generate_trimmed_api(str(source[0]), profile_filepath)
-    files = [env.File(f) for f in _get_file_list(api, target[0].abspath, True, True)]
+    files = []
+    for f in _get_file_list(api, target[0].abspath, True, True):
+        file = env.File(f)
+        if profile_filepath:
+            env.Depends(file, profile_filepath)
+        files.append(file)
     env["godot_cpp_gen_dir"] = target[0].abspath
     return files, source
 
@@ -530,8 +535,11 @@ def generate(env):
 
 
 def _godot_cpp(env):
-    extension_dir = normalize_path(env.get("gdextension_dir", env.Dir("gdextension").abspath), env)
-    api_file = normalize_path(env.get("custom_api_file", env.File(extension_dir + "/extension_api.json").abspath), env)
+    extension_dir = normalize_path(env.get("gdextension_dir", default=env.Dir("gdextension").srcnode().abspath), env)
+    api_file = normalize_path(
+        env.get("custom_api_file", default=os.path.join(extension_dir, "extension_api.json")), env
+    )
+
     bindings = env.GodotCPPBindings(
         env.Dir("."),
         [
@@ -546,15 +554,22 @@ def _godot_cpp(env):
         env.NoCache(bindings)
 
     # 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")])
+    sources = [
+        *env.Glob("src/*.cpp"),
+        *env.Glob("src/classes/*.cpp"),
+        *env.Glob("src/core/*.cpp"),
+        *env.Glob("src/variant/*.cpp"),
+        *tuple(f for f in bindings if str(f).endswith(".cpp")),
+    ]
 
     # Includes
-    env.AppendUnique(CPPPATH=[env.Dir(d) for d in [extension_dir, "include", "gen/include"]])
+    env.AppendUnique(
+        CPPPATH=[
+            env.Dir(extension_dir),
+            env.Dir("include").srcnode(),
+            env.Dir("gen/include"),
+        ]
+    )
 
     library = None
     library_name = "libgodot-cpp" + env["suffix"] + env["LIBSUFFIX"]