Update to load function pointers for GDExtension interface

Author: dsnopek

gdextension/gdextension_interface.h

@@ -35,9 +35,167 @@
 
 namespace godot {
 
+struct GDExtensionInterface {
+	GDExtensionGodotVersion godot_version;
+
+	GDExtensionInterfaceGetGodotVersion get_godot_version;
+
+	GDExtensionInterfaceMemAlloc mem_alloc;
+	GDExtensionInterfaceMemRealloc mem_realloc;
+	GDExtensionInterfaceMemFree mem_free;
+
+	GDExtensionInterfacePrintError print_error;
+	GDExtensionInterfacePrintErrorWithMessage print_error_with_message;
+	GDExtensionInterfacePrintWarning print_warning;
+	GDExtensionInterfacePrintWarningWithMessage print_warning_with_message;
+	GDExtensionInterfacePrintScriptError print_script_error;
+	GDExtensionInterfacePrintScriptErrorWithMessage print_script_error_with_message;
+
+	GDExtensionInterfaceGetNativeStructSize get_native_struct_size;
+
+	GDExtensionInterfaceVariantNewCopy variant_new_copy;
+	GDExtensionInterfaceVariantNewNil variant_new_nil;
+	GDExtensionInterfaceVariantDestroy variant_destroy;
+
+	GDExtensionInterfaceVariantCall variant_call;
+	GDExtensionInterfaceVariantCallStatic variant_call_static;
+	GDExtensionInterfaceVariantEvaluate variant_evaluate;
+	GDExtensionInterfaceVariantSet variant_set;
+	GDExtensionInterfaceVariantSetNamed variant_set_named;
+	GDExtensionInterfaceVariantSetKeyed variant_set_keyed;
+	GDExtensionInterfaceVariantSetIndexed variant_set_indexed;
+	GDExtensionInterfaceVariantGet variant_get;
+	GDExtensionInterfaceVariantGetNamed variant_get_named;
+	GDExtensionInterfaceVariantGetKeyed variant_get_keyed;
+	GDExtensionInterfaceVariantGetIndexed variant_get_indexed;
+	GDExtensionInterfaceVariantIterInit variant_iter_init;
+	GDExtensionInterfaceVariantIterNext variant_iter_next;
+	GDExtensionInterfaceVariantIterGet variant_iter_get;
+	GDExtensionInterfaceVariantHash variant_hash;
+	GDExtensionInterfaceVariantRecursiveHash variant_recursive_hash;
+	GDExtensionInterfaceVariantHashCompare variant_hash_compare;
+	GDExtensionInterfaceVariantBooleanize variant_booleanize;
+	GDExtensionInterfaceVariantDuplicate variant_duplicate;
+	GDExtensionInterfaceVariantStringify variant_stringify;
+
+	GDExtensionInterfaceVariantGetType variant_get_type;
+	GDExtensionInterfaceVariantHasMethod variant_has_method;
+	GDExtensionInterfaceVariantHasMember variant_has_member;
+	GDExtensionInterfaceVariantHasKey variant_has_key;
+	GDExtensionInterfaceVariantGetTypeName variant_get_type_name;
+	GDExtensionInterfaceVariantCanConvert variant_can_convert;
+	GDExtensionInterfaceVariantCanConvertStrict variant_can_convert_strict;
+
+	GDExtensionInterfaceGetVariantFromTypeConstructor get_variant_from_type_constructor;
+	GDExtensionInterfaceGetVariantToTypeConstructor get_variant_to_type_constructor;
+	GDExtensionInterfaceVariantGetPtrOperatorEvaluator variant_get_ptr_operator_evaluator;
+	GDExtensionInterfaceVariantGetPtrBuiltinMethod variant_get_ptr_builtin_method;
+	GDExtensionInterfaceVariantGetPtrConstructor variant_get_ptr_constructor;
+	GDExtensionInterfaceVariantGetPtrDestructor variant_get_ptr_destructor;
+	GDExtensionInterfaceVariantConstruct variant_construct;
+	GDExtensionInterfaceVariantGetPtrSetter variant_get_ptr_setter;
+	GDExtensionInterfaceVariantGetPtrGetter variant_get_ptr_getter;
+	GDExtensionInterfaceVariantGetPtrIndexedSetter variant_get_ptr_indexed_setter;
+	GDExtensionInterfaceVariantGetPtrIndexedGetter variant_get_ptr_indexed_getter;
+	GDExtensionInterfaceVariantGetPtrKeyedSetter variant_get_ptr_keyed_setter;
+	GDExtensionInterfaceVariantGetPtrKeyedGetter variant_get_ptr_keyed_getter;
+	GDExtensionInterfaceVariantGetPtrKeyedChecker variant_get_ptr_keyed_checker;
+	GDExtensionInterfaceVariantGetConstantValue variant_get_constant_value;
+	GDExtensionInterfaceVariantGetPtrUtilityFunction variant_get_ptr_utility_function;
+
+	GDExtensionInterfaceStringNewWithLatin1Chars string_new_with_latin1_chars;
+	GDExtensionInterfaceStringNewWithUtf8Chars string_new_with_utf8_chars;
+	GDExtensionInterfaceStringNewWithUtf16Chars string_new_with_utf16_chars;
+	GDExtensionInterfaceStringNewWithUtf32Chars string_new_with_utf32_chars;
+	GDExtensionInterfaceStringNewWithWideChars string_new_with_wide_chars;
+	GDExtensionInterfaceStringNewWithLatin1CharsAndLen string_new_with_latin1_chars_and_len;
+	GDExtensionInterfaceStringNewWithUtf8CharsAndLen string_new_with_utf8_chars_and_len;
+	GDExtensionInterfaceStringNewWithUtf16CharsAndLen string_new_with_utf16_chars_and_len;
+	GDExtensionInterfaceStringNewWithUtf32CharsAndLen string_new_with_utf32_chars_and_len;
+	GDExtensionInterfaceStringNewWithWideCharsAndLen string_new_with_wide_chars_and_len;
+	GDExtensionInterfaceStringToLatin1Chars string_to_latin1_chars;
+	GDExtensionInterfaceStringToUtf8Chars string_to_utf8_chars;
+	GDExtensionInterfaceStringToUtf16Chars string_to_utf16_chars;
+	GDExtensionInterfaceStringToUtf32Chars string_to_utf32_chars;
+	GDExtensionInterfaceStringToWideChars string_to_wide_chars;
+	GDExtensionInterfaceStringOperatorIndex string_operator_index;
+	GDExtensionInterfaceStringOperatorIndexConst string_operator_index_const;
+
+	GDExtensionInterfaceStringOperatorPlusEqString string_operator_plus_eq_string;
+	GDExtensionInterfaceStringOperatorPlusEqChar string_operator_plus_eq_char;
+	GDExtensionInterfaceStringOperatorPlusEqCstr string_operator_plus_eq_cstr;
+	GDExtensionInterfaceStringOperatorPlusEqWcstr string_operator_plus_eq_wcstr;
+	GDExtensionInterfaceStringOperatorPlusEqC32str string_operator_plus_eq_c32str;
+
+	GDExtensionInterfaceXmlParserOpenBuffer xml_parser_open_buffer;
+
+	GDExtensionInterfaceFileAccessStoreBuffer file_access_store_buffer;
+	GDExtensionInterfaceFileAccessGetBuffer file_access_get_buffer;
+
+	GDExtensionInterfaceWorkerThreadPoolAddNativeGroupTask worker_thread_pool_add_native_group_task;
+	GDExtensionInterfaceWorkerThreadPoolAddNativeTask worker_thread_pool_add_native_task;
+
+	GDExtensionInterfacePackedByteArrayOperatorIndex packed_byte_array_operator_index;
+	GDExtensionInterfacePackedByteArrayOperatorIndexConst packed_byte_array_operator_index_const;
+	GDExtensionInterfacePackedColorArrayOperatorIndex packed_color_array_operator_index;
+	GDExtensionInterfacePackedColorArrayOperatorIndexConst packed_color_array_operator_index_const;
+	GDExtensionInterfacePackedFloat32ArrayOperatorIndex packed_float32_array_operator_index;
+	GDExtensionInterfacePackedFloat32ArrayOperatorIndexConst packed_float32_array_operator_index_const;
+	GDExtensionInterfacePackedFloat64ArrayOperatorIndex packed_float64_array_operator_index;
+	GDExtensionInterfacePackedFloat64ArrayOperatorIndexConst packed_float64_array_operator_index_const;
+	GDExtensionInterfacePackedInt32ArrayOperatorIndex packed_int32_array_operator_index;
+	GDExtensionInterfacePackedInt32ArrayOperatorIndexConst packed_int32_array_operator_index_const;
+	GDExtensionInterfacePackedInt64ArrayOperatorIndex packed_int64_array_operator_index;
+	GDExtensionInterfacePackedInt64ArrayOperatorIndexConst packed_int64_array_operator_index_const;
+	GDExtensionInterfacePackedStringArrayOperatorIndex packed_string_array_operator_index;
+	GDExtensionInterfacePackedStringArrayOperatorIndexConst packed_string_array_operator_index_const;
+	GDExtensionInterfacePackedVector2ArrayOperatorIndex packed_vector2_array_operator_index;
+	GDExtensionInterfacePackedVector2ArrayOperatorIndexConst packed_vector2_array_operator_index_const;
+	GDExtensionInterfacePackedVector3ArrayOperatorIndex packed_vector3_array_operator_index;
+	GDExtensionInterfacePackedVector3ArrayOperatorIndexConst packed_vector3_array_operator_index_const;
+	GDExtensionInterfaceArrayOperatorIndex array_operator_index;
+	GDExtensionInterfaceArrayOperatorIndexConst array_operator_index_const;
+	GDExtensionInterfaceArrayRef array_ref;
+	GDExtensionInterfaceArraySetTyped array_set_typed;
+
+	GDExtensionInterfaceDictionaryOperatorIndex dictionary_operator_index;
+	GDExtensionInterfaceDictionaryOperatorIndexConst dictionary_operator_index_const;
+
+	GDExtensionInterfaceObjectMethodBindCall object_method_bind_call;
+	GDExtensionInterfaceObjectMethodBindPtrcall object_method_bind_ptrcall;
+	GDExtensionInterfaceObjectDestroy object_destroy;
+	GDExtensionInterfaceGlobalGetSingleton global_get_singleton;
+	GDExtensionInterfaceObjectGetInstanceBinding object_get_instance_binding;
+	GDExtensionInterfaceObjectSetInstanceBinding object_set_instance_binding;
+	GDExtensionInterfaceObjectSetInstance object_set_instance;
+	GDExtensionInterfaceObjectCastTo object_cast_to;
+	GDExtensionInterfaceObjectGetInstanceFromId object_get_instance_from_id;
+	GDExtensionInterfaceObjectGetInstanceId object_get_instance_id;
+
+	GDExtensionInterfaceRefGetObject ref_get_object;
+	GDExtensionInterfaceRefSetObject ref_set_object;
+
+	GDExtensionInterfaceScriptInstanceCreate script_instance_create;
+
+	GDExtensionInterfaceClassdbConstructObject classdb_construct_object;
+	GDExtensionInterfaceClassdbGetMethodBind classdb_get_method_bind;
+	GDExtensionInterfaceClassdbGetClassTag classdb_get_class_tag;
+
+	GDExtensionInterfaceClassdbRegisterExtensionClass classdb_register_extension_class;
+	GDExtensionInterfaceClassdbRegisterExtensionClassMethod classdb_register_extension_class_method;
+	GDExtensionInterfaceClassdbRegisterExtensionClassIntegerConstant classdb_register_extension_class_integer_constant;
+	GDExtensionInterfaceClassdbRegisterExtensionClassProperty classdb_register_extension_class_property;
+	GDExtensionInterfaceClassdbRegisterExtensionClassPropertyGroup classdb_register_extension_class_property_group;
+	GDExtensionInterfaceClassdbRegisterExtensionClassPropertySubgroup classdb_register_extension_class_property_subgroup;
+	GDExtensionInterfaceClassdbRegisterExtensionClassSignal classdb_register_extension_class_signal;
+	GDExtensionInterfaceClassdbUnregisterExtensionClass classdb_unregister_extension_class;
+
+	GDExtensionInterfaceGetLibraryPath get_library_path;
+};
+
 namespace internal {
 
-extern "C" const GDExtensionInterface *gde_interface;
+extern "C" GDExtensionInterface *gde_interface;
 extern "C" GDExtensionClassLibraryPtr library;
 extern "C" void *token;
 
@@ -51,28 +209,28 @@ enum ModuleInitializationLevel {
 };
 
 class GDExtensionBinding {
+private:
+	static GDExtensionInterface gdextension_interface;
+
 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);
+	static GDExtensionBool init(GDExtensionInterfaceGetProcAddress p_get_proc_address, GDExtensionClassLibraryPtr p_library, GDExtensionInitialization *r_initialization);
 
 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;
+		GDExtensionInterfaceGetProcAddress get_proc_address;
 		GDExtensionClassLibraryPtr library;
 		GDExtensionInitialization *initialization;
 
 	public:
-		InitObject(const GDExtensionInterface *p_interface, GDExtensionClassLibraryPtr p_library, GDExtensionInitialization *r_initialization) :
-				gde_interface(p_interface),
-				library(p_library),
-				initialization(r_initialization) {}
+		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;