From 2d45d08722b456e91b985ada5dc5d98f23261c03 Mon Sep 17 00:00:00 2001
From: David Snopek <dsnopek@gmail.com>
Date: Fri, 21 Feb 2025 14:11:07 -0600
Subject: [PATCH] Check that precision of `extension_api.json` matches build
 options

(cherry picked from commit 0a73df5f531ca1b8409d5dd984f7b857b7ae56ac)
---
 binding_generator.py                | 9 +++++++--
 misc/scripts/check_get_file_list.py | 1 +
 tools/godotcpp.py                   | 1 +
 3 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/binding_generator.py b/binding_generator.py
index 103214e2..b8ea6b76 100644
--- a/binding_generator.py
+++ b/binding_generator.py
@@ -290,10 +290,15 @@ def generate_bindings(api_filepath, use_template_get_node, bits="64", precision=
     api = {}
     with open(api_filepath, encoding="utf-8") as api_file:
         api = json.load(api_file)
-    _generate_bindings(api, use_template_get_node, bits, precision, output_dir)
+    _generate_bindings(api, api_filepath, use_template_get_node, bits, precision, output_dir)
 
 
-def _generate_bindings(api, use_template_get_node, bits="64", precision="single", output_dir="."):
+def _generate_bindings(api, api_filepath, use_template_get_node, bits="64", precision="single", output_dir="."):
+    if "precision" in api["header"] and precision != api["header"]["precision"]:
+        raise Exception(
+            f"Cannot do a precision={precision} build using '{api_filepath}' which was generated by Godot built with precision={api['header']['precision']}"
+        )
+
     target_dir = Path(output_dir) / "gen"
 
     shutil.rmtree(target_dir, ignore_errors=True)
diff --git a/misc/scripts/check_get_file_list.py b/misc/scripts/check_get_file_list.py
index ac90777a..6ea5d6f7 100755
--- a/misc/scripts/check_get_file_list.py
+++ b/misc/scripts/check_get_file_list.py
@@ -19,6 +19,7 @@ def test(profile_filepath=""):
     api = generate_trimmed_api(api_filepath, profile_filepath)
     _generate_bindings(
         api,
+        api_filepath,
         use_template_get_node=False,
         bits=bits,
         precision=precision,
diff --git a/tools/godotcpp.py b/tools/godotcpp.py
index 8931e6dc..3646264b 100644
--- a/tools/godotcpp.py
+++ b/tools/godotcpp.py
@@ -154,6 +154,7 @@ def scons_generate_bindings(target, source, env):
 
     _generate_bindings(
         api,
+        str(source[0]),
         env["generate_template_get_node"],
         "32" if "32" in env["arch"] else "64",
         env["precision"],