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Diffstat (limited to 'modules/gdscript/gdscript_lambda_callable.cpp')
| -rw-r--r-- | modules/gdscript/gdscript_lambda_callable.cpp | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/modules/gdscript/gdscript_lambda_callable.cpp b/modules/gdscript/gdscript_lambda_callable.cpp new file mode 100644 index 0000000000..0bc109b6e1 --- /dev/null +++ b/modules/gdscript/gdscript_lambda_callable.cpp @@ -0,0 +1,95 @@ +/*************************************************************************/ +/* gdscript_lambda_callable.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 "gdscript_lambda_callable.h" + +#include "core/templates/hashfuncs.h" +#include "gdscript.h" + +bool GDScriptLambdaCallable::compare_equal(const CallableCustom *p_a, const CallableCustom *p_b) { + // Lambda callables are only compared by reference. + return p_a == p_b; +} + +bool GDScriptLambdaCallable::compare_less(const CallableCustom *p_a, const CallableCustom *p_b) { + // Lambda callables are only compared by reference. + return p_a < p_b; +} + +uint32_t GDScriptLambdaCallable::hash() const { + return h; +} + +String GDScriptLambdaCallable::get_as_text() const { + if (function->get_name() != StringName()) { + return function->get_name().operator String() + "(lambda)"; + } + return "(anonymous lambda)"; +} + +CallableCustom::CompareEqualFunc GDScriptLambdaCallable::get_compare_equal_func() const { + return compare_equal; +} + +CallableCustom::CompareLessFunc GDScriptLambdaCallable::get_compare_less_func() const { + return compare_less; +} + +ObjectID GDScriptLambdaCallable::get_object() const { + return script->get_instance_id(); +} + +void GDScriptLambdaCallable::call(const Variant **p_arguments, int p_argcount, Variant &r_return_value, Callable::CallError &r_call_error) const { + int captures_amount = captures.size(); + + if (captures_amount > 0) { + Vector<const Variant *> args; + args.resize(p_argcount + captures_amount); + for (int i = 0; i < captures_amount; i++) { + args.write[i] = &captures[i]; + } + for (int i = 0; i < p_argcount; i++) { + args.write[i + captures_amount] = p_arguments[i]; + } + + r_return_value = function->call(nullptr, args.ptrw(), args.size(), r_call_error); + r_call_error.argument -= captures_amount; + } else { + r_return_value = function->call(nullptr, p_arguments, p_argcount, r_call_error); + } +} + +GDScriptLambdaCallable::GDScriptLambdaCallable(Ref<GDScript> p_script, GDScriptFunction *p_function, const Vector<Variant> &p_captures) { + script = p_script; + function = p_function; + captures = p_captures; + + h = (uint32_t)hash_djb2_one_64((uint64_t)this); +} |