Single Compilation Unit build.

Adds support for simple SCU build.
This speeds up compilation by compiling multiple cpp files within a single translation unit.

SConstruct

@@ -14,6 +14,7 @@ from collections import OrderedDict
 # Local
 import methods
 import gles_builders
+import scu_builders
 from platform_methods import run_in_subprocess
 
 # scan possible build platforms
@@ -155,6 +156,7 @@ opts.Add(BoolVariable("disable_advanced_gui", "Disable advanced GUI nodes and be
 opts.Add(BoolVariable("no_editor_splash", "Don't use the custom splash screen for the editor", True))
 opts.Add("system_certs_path", "Use this path as SSL certificates default for editor (for package maintainers)", "")
 opts.Add(BoolVariable("use_precise_math_checks", "Math checks use very precise epsilon (debug option)", False))
+opts.Add(BoolVariable("scu_build", "Use single compilation unit build", False))
 opts.Add(
     EnumVariable(
         "rids",
@@ -442,6 +444,10 @@ if selected_platform in platform_list:
                 "for an optimized template with debug features)."
             )
 
+    # Run SCU file generation script if in a SCU build.
+    if env["scu_build"]:
+        methods.set_scu_folders(scu_builders.generate_scu_files(env["verbose"], env_base["target"] != "debug"))
+
     # Must happen after the flags' definition, as configure is when most flags
     # are actually handled to change compile options, etc.
     detect.configure(env)

core/color_names.inc

@@ -1,4 +1,6 @@
 // Names from https://en.wikipedia.org/wiki/X11_color_names
+#pragma once
+
 #include "core/map.h"
 
 static Map<String, Color> _named_colors;

core/make_binders.py

@@ -86,7 +86,8 @@ class MethodBind$argc$$ifret R$$ifconst C$ : public MethodBind {
 #endif
 """
 
-template = """
+template = """#pragma once
+
 #ifndef TYPED_METHOD_BIND
 $iftempl template<$ $ifret class R$ $ifretargs ,$ $arg, class P@$ $iftempl >$
 class MethodBind$argc$$ifret R$$ifconst C$ : public MethodBind {

drivers/gles2/rasterizer_scene_gles2.cpp

@@ -53,7 +53,7 @@
 #endif
 #endif
 
-static const GLenum _cube_side_enum[6] = {
+const GLenum RasterizerSceneGLES2::_cube_side_enum[6] = {
 
 	GL_TEXTURE_CUBE_MAP_NEGATIVE_X,
 	GL_TEXTURE_CUBE_MAP_POSITIVE_X,
@@ -1332,7 +1332,7 @@ void RasterizerSceneGLES2::_fill_render_list(InstanceBase **p_cull_result, int p
 	}
 }
 
-static const GLenum gl_primitive[] = {
+const GLenum RasterizerSceneGLES2::gl_primitive[] = {
 	GL_POINTS,
 	GL_LINES,
 	GL_LINE_STRIP,

drivers/gles2/rasterizer_scene_gles2.h

@@ -89,6 +89,8 @@ class RasterizerSceneGLES2 : public RasterizerScene {
 
 private:
 	uint32_t _light_counter;
+	static const GLenum gl_primitive[];
+	static const GLenum _cube_side_enum[6];
 
 public:
 	RasterizerStorageGLES2 *storage;

drivers/gles2/shader_gles2.cpp

@@ -126,7 +126,7 @@ static void _display_error_with_code(const String &p_error, const Vector<const c
 	ERR_PRINT(p_error);
 }
 
-static String _mkid(const String &p_id) {
+String ShaderGLES2::_mkid(const String &p_id) {
 	String id = "m_" + p_id;
 	return id.replace("__", "_dus_"); //doubleunderscore is reserved in glsl
 }

drivers/gles2/shader_gles2.h

@@ -51,6 +51,8 @@
 class RasterizerStorageGLES2;
 
 class ShaderGLES2 {
+	static String _mkid(const String &p_id);
+
 protected:
 	struct Enum {
 		uint64_t mask;

drivers/gles3/rasterizer_scene_gles3.cpp

@@ -41,7 +41,7 @@
 #define glClearDepth glClearDepthf
 #endif
 
-static const GLenum _cube_side_enum[6] = {
+const GLenum RasterizerSceneGLES3::_cube_side_enum[6] = {
 
 	GL_TEXTURE_CUBE_MAP_NEGATIVE_X,
 	GL_TEXTURE_CUBE_MAP_POSITIVE_X,
@@ -52,7 +52,7 @@ static const GLenum _cube_side_enum[6] = {
 
 };
 
-static _FORCE_INLINE_ void store_transform(const Transform &p_mtx, float *p_array) {
+void RasterizerSceneGLES3::store_transform(const Transform &p_mtx, float *p_array) {
 	p_array[0] = p_mtx.basis.elements[0][0];
 	p_array[1] = p_mtx.basis.elements[1][0];
 	p_array[2] = p_mtx.basis.elements[2][0];
@@ -71,7 +71,7 @@ static _FORCE_INLINE_ void store_transform(const Transform &p_mtx, float *p_arra
 	p_array[15] = 1;
 }
 
-static _FORCE_INLINE_ void store_camera(const CameraMatrix &p_mtx, float *p_array) {
+void RasterizerSceneGLES3::store_camera(const CameraMatrix &p_mtx, float *p_array) {
 	for (int i = 0; i < 4; i++) {
 		for (int j = 0; j < 4; j++) {
 			p_array[i * 4 + j] = p_mtx.matrix[i][j];
@@ -1482,7 +1482,7 @@ void RasterizerSceneGLES3::_setup_geometry(RenderList::Element *e, const Transfo
 	}
 }
 
-static const GLenum gl_primitive[] = {
+const GLenum RasterizerSceneGLES3::gl_primitive[] = {
 	GL_POINTS,
 	GL_LINES,
 	GL_LINE_STRIP,

drivers/gles3/rasterizer_scene_gles3.h

@@ -863,6 +863,13 @@ class RasterizerSceneGLES3 : public RasterizerScene {
 	virtual void set_scene_pass(uint64_t p_pass);
 	virtual void set_debug_draw_mode(VS::ViewportDebugDraw p_debug_draw);
 
+private:
+	_FORCE_INLINE_ void store_transform(const Transform &p_mtx, float *p_array);
+	_FORCE_INLINE_ void store_camera(const CameraMatrix &p_mtx, float *p_array);
+	static const GLenum gl_primitive[];
+	static const GLenum _cube_side_enum[6];
+
+public:
 	void iteration();
 	void initialize();
 	void finalize();

editor/SCsub

@@ -32,13 +32,18 @@ if env["tools"]:
     reg_exporters = "void register_exporters() {\n"
     for e in env.platform_exporters:
         # Glob all .cpp files in export folder
-        files = Glob("#platform/" + e + "/export/" + "*.cpp")
-        env.add_source_files(env.editor_sources, files)
+        if not env["scu_build"]:
+            files = Glob("#platform/" + e + "/export/" + "*.cpp")
+            env.add_source_files(env.editor_sources, files)
 
         reg_exporters += "\tregister_" + e + "_exporter();\n"
         reg_exporters_inc += '#include "platform/' + e + '/export/export.h"\n'
     reg_exporters += "}\n"
 
+    # If we are in a SCU build, we add all the platform exporters in one SCU file.
+    if env["scu_build"]:
+        env.add_source_files(env.editor_sources, "../platform/*.cpp")
+
     # NOTE: It is safe to generate this file here, since this is still executed serially
     with open_utf8("register_exporters.gen.cpp", "w") as f:
         f.write(reg_exporters_inc)

editor/editor_about.cpp

@@ -37,7 +37,7 @@
 #include "editor_node.h"
 
 // The metadata key used to store and retrieve the version text to copy to the clipboard.
-static const String META_TEXT_TO_COPY = "text_to_copy";
+const String EditorAbout::META_TEXT_TO_COPY = "text_to_copy";
 
 void EditorAbout::_notification(int p_what) {
 	switch (p_what) {

editor/editor_about.h

@@ -53,6 +53,7 @@ class EditorAbout : public AcceptDialog {
 	GDCLASS(EditorAbout, AcceptDialog);
 
 private:
+	static const String META_TEXT_TO_COPY;
 	void _license_tree_selected();
 	void _version_button_pressed();
 	ScrollContainer *_populate_list(const String &p_name, const List<String> &p_sections, const char *const *const p_src[], const int p_flag_single_column = 0);

editor/editor_inspector.cpp

@@ -43,20 +43,6 @@
 #include "scene/property_utils.h"
 #include "scene/resources/packed_scene.h"
 
-static bool _property_path_matches(const String &p_property_path, const String &p_filter, EditorPropertyNameProcessor::Style p_style) {
-	if (p_property_path.findn(p_filter) != -1) {
-		return true;
-	}
-
-	const Vector<String> sections = p_property_path.split("/");
-	for (int i = 0; i < sections.size(); i++) {
-		if (p_filter.is_subsequence_ofi(EditorPropertyNameProcessor::get_singleton()->process_name(sections[i], p_style))) {
-			return true;
-		}
-	}
-	return false;
-}
-
 Size2 EditorProperty::get_minimum_size() const {
 	Size2 ms;
 	Ref<Font> font = get_font("font", "Tree");
@@ -1232,6 +1218,20 @@ EditorInspectorSection::~EditorInspectorSection() {
 Ref<EditorInspectorPlugin> EditorInspector::inspector_plugins[MAX_PLUGINS];
 int EditorInspector::inspector_plugin_count = 0;
 
+bool EditorInspector::_property_path_matches(const String &p_property_path, const String &p_filter, EditorPropertyNameProcessor::Style p_style) {
+	if (p_property_path.findn(p_filter) != -1) {
+		return true;
+	}
+
+	const Vector<String> sections = p_property_path.split("/");
+	for (int i = 0; i < sections.size(); i++) {
+		if (p_filter.is_subsequence_ofi(EditorPropertyNameProcessor::get_singleton()->process_name(sections[i], p_style))) {
+			return true;
+		}
+	}
+	return false;
+}
+
 EditorProperty *EditorInspector::instantiate_property_editor(Object *p_object, Variant::Type p_type, const String &p_path, PropertyHint p_hint, const String &p_hint_text, int p_usage) {
 	for (int i = inspector_plugin_count - 1; i >= 0; i--) {
 		inspector_plugins[i]->parse_property(p_object, p_type, p_path, p_hint, p_hint_text, p_usage);

editor/editor_inspector.h

@@ -319,6 +319,7 @@ class EditorInspector : public ScrollContainer {
 	void _property_keyed_with_value(const String &p_path, const Variant &p_value, bool p_advance);
 	void _property_checked(const String &p_path, bool p_checked);
 	void _property_pinned(const String &p_path, bool p_pinned);
+	bool _property_path_matches(const String &p_property_path, const String &p_filter, EditorPropertyNameProcessor::Style p_style);
 
 	void _resource_selected(const String &p_path, RES p_resource);
 	void _property_selected(const String &p_path, int p_focusable);

editor/editor_sectioned_inspector.cpp

@@ -34,20 +34,6 @@
 #include "editor_scale.h"
 #include "editor_settings.h"
 
-static bool _property_path_matches(const String &p_property_path, const String &p_filter, EditorPropertyNameProcessor::Style p_style) {
-	if (p_property_path.findn(p_filter) != -1) {
-		return true;
-	}
-
-	const Vector<String> sections = p_property_path.split("/");
-	for (int i = 0; i < sections.size(); i++) {
-		if (p_filter.is_subsequence_ofi(EditorPropertyNameProcessor::get_singleton()->process_name(sections[i], p_style))) {
-			return true;
-		}
-	}
-	return false;
-}
-
 class SectionedInspectorFilter : public Object {
 	GDCLASS(SectionedInspectorFilter, Object);
 
@@ -145,6 +131,20 @@ class SectionedInspectorFilter : public Object {
 	}
 };
 
+bool SectionedInspector::_property_path_matches(const String &p_property_path, const String &p_filter, EditorPropertyNameProcessor::Style p_style) {
+	if (p_property_path.findn(p_filter) != -1) {
+		return true;
+	}
+
+	const Vector<String> sections = p_property_path.split("/");
+	for (int i = 0; i < sections.size(); i++) {
+		if (p_filter.is_subsequence_ofi(EditorPropertyNameProcessor::get_singleton()->process_name(sections[i], p_style))) {
+			return true;
+		}
+	}
+	return false;
+}
+
 void SectionedInspector::_bind_methods() {
 	ClassDB::bind_method("_section_selected", &SectionedInspector::_section_selected);
 	ClassDB::bind_method("_search_changed", &SectionedInspector::_search_changed);

editor/editor_sectioned_inspector.h

@@ -55,6 +55,7 @@ class SectionedInspector : public HSplitContainer {
 	void _section_selected();
 
 	void _search_changed(const String &p_what);
+	bool _property_path_matches(const String &p_property_path, const String &p_filter, EditorPropertyNameProcessor::Style p_style);
 
 protected:
 	void _notification(int p_what);

editor/plugins/text_editor.cpp

@@ -494,7 +494,7 @@ void TextEditor::_bind_methods() {
 	ClassDB::bind_method("_prepare_edit_menu", &TextEditor::_prepare_edit_menu);
 }
 
-static ScriptEditorBase *create_editor(const RES &p_resource) {
+ScriptEditorBase *TextEditor::create_editor(const RES &p_resource) {
 	if (Object::cast_to<TextFile>(*p_resource)) {
 		return memnew(TextEditor);
 	}

editor/plugins/text_editor.h

@@ -96,6 +96,7 @@ class TextEditor : public ScriptEditorBase {
 		BOOKMARK_GOTO_PREV,
 		BOOKMARK_REMOVE_ALL,
 	};
+	static ScriptEditorBase *create_editor(const RES &p_resource);
 
 protected:
 	static void _bind_methods();

main/tests/test_string.cpp

@@ -1330,3 +1330,5 @@ MainLoop *test() {
 	return nullptr;
 }
 } // namespace TestString
+
+#undef CHECK

main/tests/test_theme.cpp

@@ -301,3 +301,5 @@ MainLoop *test() {
 	return nullptr;
 }
 } // namespace TestTheme
+
+#undef CHECK