godot/modules/mono/signal_awaiter_utils.h
Rémi Verschelde f8ab79e68a Zero initialize all pointer class and struct members
This prevents the pitfall of UB when checking if they have been
assigned something valid by comparing to nullptr.
2022-04-04 19:49:50 +02:00

98 lines
4.4 KiB
C++

/*************************************************************************/
/* signal_awaiter_utils.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2022 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. */
/*************************************************************************/
#ifndef SIGNAL_AWAITER_UTILS_H
#define SIGNAL_AWAITER_UTILS_H
#include "core/object/ref_counted.h"
#include "csharp_script.h"
#include "mono_gc_handle.h"
Error gd_mono_connect_signal_awaiter(Object *p_source, const StringName &p_signal, Object *p_target, MonoObject *p_awaiter);
class SignalAwaiterCallable : public CallableCustom {
ObjectID target_id;
MonoGCHandleData awaiter_handle;
StringName signal;
public:
static bool compare_equal(const CallableCustom *p_a, const CallableCustom *p_b);
static bool compare_less(const CallableCustom *p_a, const CallableCustom *p_b);
static constexpr CompareEqualFunc compare_equal_func_ptr = &SignalAwaiterCallable::compare_equal;
static constexpr CompareEqualFunc compare_less_func_ptr = &SignalAwaiterCallable::compare_less;
uint32_t hash() const override;
String get_as_text() const override;
CompareEqualFunc get_compare_equal_func() const override;
CompareLessFunc get_compare_less_func() const override;
ObjectID get_object() const override;
_FORCE_INLINE_ StringName get_signal() const { return signal; }
void call(const Variant **p_arguments, int p_argcount, Variant &r_return_value, Callable::CallError &r_call_error) const override;
SignalAwaiterCallable(Object *p_target, MonoObject *p_awaiter, const StringName &p_signal);
~SignalAwaiterCallable();
};
class EventSignalCallable : public CallableCustom {
Object *owner = nullptr;
const CSharpScript::EventSignal *event_signal;
public:
static bool compare_equal(const CallableCustom *p_a, const CallableCustom *p_b);
static bool compare_less(const CallableCustom *p_a, const CallableCustom *p_b);
static constexpr CompareEqualFunc compare_equal_func_ptr = &EventSignalCallable::compare_equal;
static constexpr CompareEqualFunc compare_less_func_ptr = &EventSignalCallable::compare_less;
uint32_t hash() const override;
String get_as_text() const override;
CompareEqualFunc get_compare_equal_func() const override;
CompareLessFunc get_compare_less_func() const override;
ObjectID get_object() const override;
StringName get_signal() const;
void call(const Variant **p_arguments, int p_argcount, Variant &r_return_value, Callable::CallError &r_call_error) const override;
EventSignalCallable(Object *p_owner, const CSharpScript::EventSignal *p_event_signal);
};
#endif // SIGNAL_AWAITER_UTILS_H