[NativeScript] added global type tag system

modules/gdnative/gdnative_api.json

@@ -5821,6 +5821,23 @@
               ["godot_string", "p_documentation"]
             ]
           },
+          {
+            "name": "godot_nativescript_set_global_type_tag",
+            "return_type": "void",
+            "arguments": [
+              ["int", "p_idx"],
+              ["const char *", "p_name"],
+              ["const void *", "p_type_tag"]
+            ]
+          },
+          {
+            "name": "godot_nativescript_get_global_type_tag",
+            "return_type": "const void *",
+            "arguments": [
+              ["int", "p_idx"],
+              ["const char *", "p_name"]
+            ]
+          },
           {
             "name": "godot_nativescript_set_type_tag",
             "return_type": "void",

modules/gdnative/include/nativescript/godot_nativescript.h

@@ -214,13 +214,16 @@ void GDAPI godot_nativescript_set_signal_documentation(void *p_gdnative_handle,
 
 // type tag API
 
+void GDAPI godot_nativescript_set_global_type_tag(int p_idx, const char *p_name, const void *p_type_tag);
+const void GDAPI *godot_nativescript_get_global_type_tag(int p_idx, const char *p_name);
+
 void GDAPI godot_nativescript_set_type_tag(void *p_gdnative_handle, const char *p_name, const void *p_type_tag);
 const void GDAPI *godot_nativescript_get_type_tag(const godot_object *p_object);
 
 // instance binding API
 
 typedef struct {
-	GDCALLINGCONV void *(*alloc_instance_binding_data)(void *, godot_object *);
+	GDCALLINGCONV void *(*alloc_instance_binding_data)(void *, const void *, godot_object *);
 	GDCALLINGCONV void (*free_instance_binding_data)(void *, void *);
 	void *data;
 	GDCALLINGCONV void (*free_func)(void *);

modules/gdnative/nativescript/godot_nativescript.cpp

@@ -313,6 +313,14 @@ void GDAPI godot_nativescript_set_signal_documentation(void *p_gdnative_handle,
 	signal->get().documentation = *(String *)&p_documentation;
 }
 
+void GDAPI godot_nativescript_set_global_type_tag(int p_idx, const char *p_name, const void *p_type_tag) {
+	NativeScriptLanguage::get_singleton()->set_global_type_tag(p_idx, StringName(p_name), p_type_tag);
+}
+
+const void GDAPI *godot_nativescript_get_global_type_tag(int p_idx, const char *p_name) {
+	return NativeScriptLanguage::get_singleton()->get_global_type_tag(p_idx, StringName(p_name));
+}
+
 void GDAPI godot_nativescript_set_type_tag(void *p_gdnative_handle, const char *p_name, const void *p_type_tag) {
 	String *s = (String *)p_gdnative_handle;
 
@@ -347,10 +355,6 @@ const void GDAPI *godot_nativescript_get_type_tag(const godot_object *p_object)
 	return NULL;
 }
 
-#ifdef __cplusplus
-}
-#endif
-
 int GDAPI godot_nativescript_register_instance_binding_data_functions(godot_instance_binding_functions p_binding_functions) {
 	return NativeScriptLanguage::get_singleton()->register_binding_functions(p_binding_functions);
 }
@@ -362,3 +366,7 @@ void GDAPI godot_nativescript_unregister_instance_binding_data_functions(int p_i
 void GDAPI *godot_nativescript_get_instance_binding_data(int p_idx, godot_object *p_object) {
 	return NativeScriptLanguage::get_singleton()->get_instance_binding_data(p_idx, (Object *)p_object);
 }
+
+#ifdef __cplusplus
+}
+#endif

modules/gdnative/nativescript/nativescript.cpp

@@ -55,12 +55,6 @@
 #include "editor/editor_node.h"
 #endif
 
-//
-//
-// Script stuff
-//
-//
-
 void NativeScript::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_class_name", "class_name"), &NativeScript::set_class_name);
 	ClassDB::bind_method(D_METHOD("get_class_name"), &NativeScript::get_class_name);
@@ -528,12 +522,6 @@ NativeScript::~NativeScript() {
 #endif
 }
 
-	//
-	//
-	// ScriptInstance stuff
-	//
-	//
-
 #define GET_SCRIPT_DESC() script->get_script_desc()
 
 void NativeScriptInstance::_ml_call_reversed(NativeScriptDesc *script_data, const StringName &p_method, const Variant **p_args, int p_argcount) {
@@ -872,12 +860,6 @@ NativeScriptInstance::~NativeScriptInstance() {
 	}
 }
 
-//
-//
-// ScriptingLanguage stuff
-//
-//
-
 NativeScriptLanguage *NativeScriptLanguage::singleton;
 
 void NativeScriptLanguage::_unload_stuff(bool p_reload) {
@@ -1195,8 +1177,11 @@ void *NativeScriptLanguage::get_instance_binding_data(int p_idx, Object *p_objec
 	}
 
 	if (!(*binding_data)[p_idx]) {
+
+		const void *global_type_tag = global_type_tags[p_idx].get(p_object->get_class_name());
+
 		// no binding data yet, soooooo alloc new one \o/
-		(*binding_data)[p_idx] = binding_functions[p_idx].second.alloc_instance_binding_data(binding_functions[p_idx].second.data, (godot_object *)p_object);
+		(*binding_data)[p_idx] = binding_functions[p_idx].second.alloc_instance_binding_data(binding_functions[p_idx].second.data, global_type_tag, (godot_object *)p_object);
 	}
 
 	return (*binding_data)[p_idx];
@@ -1238,6 +1223,27 @@ void NativeScriptLanguage::free_instance_binding_data(void *p_data) {
 	delete &binding_data;
 }
 
+void NativeScriptLanguage::set_global_type_tag(int p_idx, StringName p_class_name, const void *p_type_tag) {
+	if (!global_type_tags.has(p_idx)) {
+		global_type_tags.insert(p_idx, HashMap<StringName, const void *>());
+	}
+
+	HashMap<StringName, const void *> &tags = global_type_tags[p_idx];
+
+	tags.set(p_class_name, p_type_tag);
+}
+
+const void *NativeScriptLanguage::get_global_type_tag(int p_idx, StringName p_class_name) const {
+	if (!global_type_tags.has(p_idx))
+		return NULL;
+
+	const HashMap<StringName, const void *> &tags = global_type_tags[p_idx];
+
+	const void *tag = tags.get(p_class_name);
+
+	return tag;
+}
+
 #ifndef NO_THREADS
 void NativeScriptLanguage::defer_init_library(Ref<GDNativeLibrary> lib, NativeScript *script) {
 	MutexLock lock(mutex);

modules/gdnative/nativescript/nativescript.h

@@ -36,6 +36,7 @@
 #include "core/self_list.h"
 #include "io/resource_loader.h"
 #include "io/resource_saver.h"
+#include "oa_hash_map.h"
 #include "ordered_hash_map.h"
 #include "os/thread_safe.h"
 #include "scene/main/node.h"
@@ -240,6 +241,8 @@ private:
 	Vector<Pair<bool, godot_instance_binding_functions> > binding_functions;
 	Set<Vector<void *> *> binding_instances;
 
+	Map<int, HashMap<StringName, const void *> > global_type_tags;
+
 public:
 	// These two maps must only be touched on the main thread
 	Map<String, Map<StringName, NativeScriptDesc> > library_classes;
@@ -323,6 +326,9 @@ public:
 
 	virtual void *alloc_instance_binding_data(Object *p_object);
 	virtual void free_instance_binding_data(void *p_data);
+
+	void set_global_type_tag(int p_idx, StringName p_class_name, const void *p_type_tag);
+	const void *get_global_type_tag(int p_idx, StringName p_class_name) const;
 };
 
 inline NativeScriptDesc *NativeScript::get_script_desc() const {