Replace bindgins to work with extensions

src/core/method_bind.cpp

@@ -0,0 +1,120 @@
+/*************************************************************************/
+/*  method_bind.cpp                                                      */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md).   */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+#include <godot_cpp/core/method_bind.hpp>
+
+namespace godot {
+
+const char *MethodBind::get_name() const {
+	return name;
+}
+
+void MethodBind::set_name(const char *p_name) {
+	name = p_name;
+}
+
+void MethodBind::set_argument_count(int p_count) {
+	argument_count = p_count;
+}
+
+void MethodBind::set_const(bool p_const) {
+	_is_const = p_const;
+}
+
+void MethodBind::set_return(bool p_return) {
+	_has_return = p_return;
+}
+
+void MethodBind::set_argument_names(const std::vector<std::string> &p_names) {
+	argument_names = p_names;
+}
+
+std::vector<std::string> MethodBind::get_argument_names() const {
+	return argument_names;
+}
+
+void MethodBind::generate_argument_types(int p_count) {
+	set_argument_count(p_count);
+
+	if (argument_types != nullptr) {
+		memdelete_arr(argument_types);
+	}
+
+	argument_types = memnew_arr(GDNativeVariantType, p_count + 1);
+
+	// -1 means return type.
+	for (int i = -1; i < p_count; i++) {
+		argument_types[i + 1] = gen_argument_type(i);
+	}
+}
+
+GDNativePropertyInfo MethodBind::get_argument_info(int p_argument) const {
+	GDNativePropertyInfo info = gen_argument_type_info(p_argument);
+	if (p_argument >= 0) {
+		info.name = p_argument < (int)argument_names.size() ? argument_names[p_argument].c_str() : "";
+	}
+	return info;
+}
+
+GDNativeVariantType MethodBind::bind_get_argument_type(void *p_method_userdata, int32_t p_argument) {
+	const MethodBind *bind = reinterpret_cast<const MethodBind *>(p_method_userdata);
+	return bind->get_argument_type(p_argument);
+}
+
+void MethodBind::bind_get_argument_info(void *p_method_userdata, int32_t p_argument, GDNativePropertyInfo *r_info) {
+	const MethodBind *bind = reinterpret_cast<const MethodBind *>(p_method_userdata);
+	*r_info = bind->get_argument_info(p_argument);
+}
+
+GDNativeExtensionClassMethodArgumentMetadata MethodBind::bind_get_argument_metadata(void *p_method_userdata, int32_t p_argument) {
+	const MethodBind *bind = reinterpret_cast<const MethodBind *>(p_method_userdata);
+	return bind->get_argument_metadata(p_argument);
+}
+
+void MethodBind::bind_call(void *p_method_userdata, GDExtensionClassInstancePtr p_instance, const GDNativeVariantPtr *p_args, const GDNativeInt p_argument_count, GDNativeVariantPtr r_return, GDNativeCallError *r_error) {
+	const MethodBind *bind = reinterpret_cast<const MethodBind *>(p_method_userdata);
+	Variant ret = bind->call(p_instance, p_args, p_argument_count, *r_error);
+	// This assumes the return value is an empty Variant, so it doesn't need to call the destructor first.
+	// Since only NativeExtensionMethodBind calls this from the Godot side, it should always be the case.
+	internal::interface->variant_new_copy(r_return, ret.ptr);
+}
+
+void MethodBind::bind_ptrcall(void *p_method_userdata, GDExtensionClassInstancePtr p_instance, const GDNativeTypePtr *p_args, GDNativeTypePtr r_return) {
+	const MethodBind *bind = reinterpret_cast<const MethodBind *>(p_method_userdata);
+	bind->ptrcall(p_instance, p_args, r_return);
+}
+
+MethodBind::~MethodBind() {
+	if (argument_types) {
+		memdelete_arr(argument_types);
+	}
+}
+
+} // namespace godot