1 files changed, 193 insertions, 0 deletions
diff --git a/core/callable_bind.cpp b/core/callable_bind.cpp
new file mode 100644
index 0000000000..da08d3ccbd
--- /dev/null
+++ b/core/callable_bind.cpp
@@ -0,0 +1,193 @@
+/*************************************************************************/
+/*  callable_bind.cpp                                                    */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2020 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 "callable_bind.h"
+
+//////////////////////////////////
+
+uint32_t CallableCustomBind::hash() const {
+	return callable.hash();
+}
+String CallableCustomBind::get_as_text() const {
+	return callable.operator String();
+}
+
+bool CallableCustomBind::_equal_func(const CallableCustom *p_a, const CallableCustom *p_b) {
+	const CallableCustomBind *a = (const CallableCustomBind *)p_a;
+	const CallableCustomBind *b = (const CallableCustomBind *)p_b;
+
+	if (!(a->callable != b->callable)) {
+		return false;
+	}
+
+	if (a->binds.size() != b->binds.size()) {
+		return false;
+	}
+
+	return true;
+}
+
+bool CallableCustomBind::_less_func(const CallableCustom *p_a, const CallableCustom *p_b) {
+	const CallableCustomBind *a = (const CallableCustomBind *)p_a;
+	const CallableCustomBind *b = (const CallableCustomBind *)p_b;
+
+	if (a->callable < b->callable) {
+		return true;
+	} else if (b->callable < a->callable) {
+		return false;
+	}
+
+	return a->binds.size() < b->binds.size();
+}
+
+CallableCustom::CompareEqualFunc CallableCustomBind::get_compare_equal_func() const {
+	return _equal_func;
+}
+CallableCustom::CompareLessFunc CallableCustomBind::get_compare_less_func() const {
+	return _less_func;
+}
+ObjectID CallableCustomBind::get_object() const {
+	return callable.get_object_id();
+}
+const Callable *CallableCustomBind::get_base_comparator() const {
+	return &callable;
+}
+
+void CallableCustomBind::call(const Variant **p_arguments, int p_argcount, Variant &r_return_value, Callable::CallError &r_call_error) const {
+	const Variant **args = (const Variant **)alloca(sizeof(const Variant **) * (binds.size() + p_argcount));
+	for (int i = 0; i < p_argcount; i++) {
+		args[i] = (const Variant *)p_arguments[i];
+	}
+	for (int i = 0; i < binds.size(); i++) {
+		args[i + p_argcount] = (const Variant *)&binds[i];
+	}
+
+	callable.call(args, p_argcount + binds.size(), r_return_value, r_call_error);
+}
+
+CallableCustomBind::CallableCustomBind(const Callable &p_callable, const Vector<Variant> &p_binds) {
+	callable = p_callable;
+	binds = p_binds;
+}
+
+CallableCustomBind::~CallableCustomBind() {
+}
+
+//////////////////////////////////
+
+uint32_t CallableCustomUnbind::hash() const {
+	return callable.hash();
+}
+String CallableCustomUnbind::get_as_text() const {
+	return callable.operator String();
+}
+
+bool CallableCustomUnbind::_equal_func(const CallableCustom *p_a, const CallableCustom *p_b) {
+	const CallableCustomUnbind *a = (const CallableCustomUnbind *)p_a;
+	const CallableCustomUnbind *b = (const CallableCustomUnbind *)p_b;
+
+	if (!(a->callable != b->callable)) {
+		return false;
+	}
+
+	if (a->argcount != b->argcount) {
+		return false;
+	}
+
+	return true;
+}
+
+bool CallableCustomUnbind::_less_func(const CallableCustom *p_a, const CallableCustom *p_b) {
+	const CallableCustomUnbind *a = (const CallableCustomUnbind *)p_a;
+	const CallableCustomUnbind *b = (const CallableCustomUnbind *)p_b;
+
+	if (a->callable < b->callable) {
+		return true;
+	} else if (b->callable < a->callable) {
+		return false;
+	}
+
+	return a->argcount < b->argcount;
+}
+
+CallableCustom::CompareEqualFunc CallableCustomUnbind::get_compare_equal_func() const {
+	return _equal_func;
+}
+CallableCustom::CompareLessFunc CallableCustomUnbind::get_compare_less_func() const {
+	return _less_func;
+}
+ObjectID CallableCustomUnbind::get_object() const {
+	return callable.get_object_id();
+}
+const Callable *CallableCustomUnbind::get_base_comparator() const {
+	return &callable;
+}
+
+void CallableCustomUnbind::call(const Variant **p_arguments, int p_argcount, Variant &r_return_value, Callable::CallError &r_call_error) const {
+	if (argcount > p_argcount) {
+		r_call_error.error = Callable::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS;
+		r_call_error.argument = 0;
+		r_call_error.expected = argcount;
+		return;
+	}
+	callable.call(p_arguments, p_argcount - argcount, r_return_value, r_call_error);
+}
+
+CallableCustomUnbind::CallableCustomUnbind(const Callable &p_callable, int p_argcount) {
+	callable = p_callable;
+	argcount = p_argcount;
+}
+
+CallableCustomUnbind::~CallableCustomUnbind() {
+}
+
+Callable callable_bind(const Callable &p_callable, const Variant &p_arg1) {
+	return p_callable.bind((const Variant **)&p_arg1, 1);
+}
+
+Callable callable_bind(const Callable &p_callable, const Variant &p_arg1, const Variant &p_arg2) {
+	const Variant *args[2] = { &p_arg1, &p_arg2 };
+	return p_callable.bind(args, 2);
+}
+
+Callable callable_bind(const Callable &p_callable, const Variant &p_arg1, const Variant &p_arg2, const Variant &p_arg3) {
+	const Variant *args[3] = { &p_arg1, &p_arg2, &p_arg3 };
+	return p_callable.bind(args, 3);
+}
+
+Callable callable_bind(const Callable &p_callable, const Variant &p_arg1, const Variant &p_arg2, const Variant &p_arg3, const Variant &p_arg4) {
+	const Variant *args[4] = { &p_arg1, &p_arg2, &p_arg3, &p_arg4 };
+	return p_callable.bind(args, 4);
+}
+
+Callable callable_bind(const Callable &p_callable, const Variant &p_arg1, const Variant &p_arg2, const Variant &p_arg3, const Variant &p_arg4, const Variant &p_arg5) {
+	const Variant *args[5] = { &p_arg1, &p_arg2, &p_arg3, &p_arg4, &p_arg5 };
+	return p_callable.bind(args, 5);
+}