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			126 lines
		
	
	
	
		
			4.9 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			126 lines
		
	
	
	
		
			4.9 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /**************************************************************************/
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| /*  gdscript_utility_callable.cpp                                         */
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| /**************************************************************************/
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| /*                         This file is part of:                          */
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| /*                             GODOT ENGINE                               */
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| /*                        https://godotengine.org                         */
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| /**************************************************************************/
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| /* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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| /* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
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| /*                                                                        */
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| /* Permission is hereby granted, free of charge, to any person obtaining  */
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| /* a copy of this software and associated documentation files (the        */
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| /* "Software"), to deal in the Software without restriction, including    */
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| /* without limitation the rights to use, copy, modify, merge, publish,    */
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| /* distribute, sublicense, and/or sell copies of the Software, and to     */
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| /* permit persons to whom the Software is furnished to do so, subject to  */
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| /* the following conditions:                                              */
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| /*                                                                        */
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| /* The above copyright notice and this permission notice shall be         */
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| /* included in all copies or substantial portions of the Software.        */
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| /*                                                                        */
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| /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
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| /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     */
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| /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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| /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY   */
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| /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,   */
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| /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE      */
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| /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
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| /**************************************************************************/
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| 
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| #include "gdscript_utility_callable.h"
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| 
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| #include "core/templates/hashfuncs.h"
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| 
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| bool GDScriptUtilityCallable::compare_equal(const CallableCustom *p_a, const CallableCustom *p_b) {
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| 	return p_a->hash() == p_b->hash();
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| }
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| 
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| bool GDScriptUtilityCallable::compare_less(const CallableCustom *p_a, const CallableCustom *p_b) {
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| 	return p_a->hash() < p_b->hash();
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| }
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| 
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| uint32_t GDScriptUtilityCallable::hash() const {
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| 	return h;
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| }
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| 
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| String GDScriptUtilityCallable::get_as_text() const {
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| 	String scope;
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| 	switch (type) {
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| 		case TYPE_INVALID:
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| 			scope = "<invalid scope>";
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| 			break;
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| 		case TYPE_GLOBAL:
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| 			scope = "@GlobalScope";
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| 			break;
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| 		case TYPE_GDSCRIPT:
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| 			scope = "@GDScript";
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| 			break;
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| 	}
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| 	return vformat("%s::%s (Callable)", scope, function_name);
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| }
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| 
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| CallableCustom::CompareEqualFunc GDScriptUtilityCallable::get_compare_equal_func() const {
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| 	return compare_equal;
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| }
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| 
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| CallableCustom::CompareLessFunc GDScriptUtilityCallable::get_compare_less_func() const {
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| 	return compare_less;
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| }
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| 
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| bool GDScriptUtilityCallable::is_valid() const {
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| 	return type != TYPE_INVALID;
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| }
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| 
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| StringName GDScriptUtilityCallable::get_method() const {
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| 	return function_name;
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| }
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| 
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| ObjectID GDScriptUtilityCallable::get_object() const {
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| 	return ObjectID();
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| }
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| 
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| int GDScriptUtilityCallable::get_argument_count(bool &r_is_valid) const {
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| 	switch (type) {
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| 		case TYPE_INVALID:
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| 			r_is_valid = false;
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| 			return 0;
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| 		case TYPE_GLOBAL:
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| 			r_is_valid = true;
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| 			return Variant::get_utility_function_argument_count(function_name);
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| 		case TYPE_GDSCRIPT:
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| 			r_is_valid = true;
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| 			return GDScriptUtilityFunctions::get_function_argument_count(function_name);
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| 	}
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| 	ERR_FAIL_V_MSG(0, "Invalid type.");
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| }
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| 
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| void GDScriptUtilityCallable::call(const Variant **p_arguments, int p_argcount, Variant &r_return_value, Callable::CallError &r_call_error) const {
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| 	switch (type) {
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| 		case TYPE_INVALID:
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| 			r_return_value = vformat(R"(Trying to call invalid utility function "%s".)", function_name);
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| 			r_call_error.error = Callable::CallError::CALL_ERROR_INVALID_METHOD;
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| 			r_call_error.argument = 0;
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| 			r_call_error.expected = 0;
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| 			break;
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| 		case TYPE_GLOBAL:
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| 			Variant::call_utility_function(function_name, &r_return_value, p_arguments, p_argcount, r_call_error);
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| 			break;
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| 		case TYPE_GDSCRIPT:
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| 			gdscript_function(&r_return_value, p_arguments, p_argcount, r_call_error);
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| 			break;
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| 	}
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| }
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| 
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| GDScriptUtilityCallable::GDScriptUtilityCallable(const StringName &p_function_name) {
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| 	function_name = p_function_name;
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| 	if (GDScriptUtilityFunctions::function_exists(p_function_name)) {
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| 		type = TYPE_GDSCRIPT;
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| 		gdscript_function = GDScriptUtilityFunctions::get_function(p_function_name);
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| 	} else if (Variant::has_utility_function(p_function_name)) {
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| 		type = TYPE_GLOBAL;
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| 	} else {
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| 		ERR_PRINT(vformat(R"(Unknown utility function "%s".)", p_function_name));
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| 	}
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| 	h = p_function_name.hash();
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| }
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