godot/modules/mono/managed_callable.cpp
A Thousand Ships 59bcc2888c
Add methods to get argument count of methods
Added to:
* `Callable`s
* `Object`s
* `ClassDB`
* `Script(Instance)`s
2024-03-10 11:02:43 +01:00

135 lines
5.2 KiB
C++

/**************************************************************************/
/* managed_callable.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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 "managed_callable.h"
#include "csharp_script.h"
#include "mono_gd/gd_mono_cache.h"
#ifdef GD_MONO_HOT_RELOAD
SelfList<ManagedCallable>::List ManagedCallable::instances;
RBMap<ManagedCallable *, Array> ManagedCallable::instances_pending_reload;
Mutex ManagedCallable::instances_mutex;
#endif
bool ManagedCallable::compare_equal(const CallableCustom *p_a, const CallableCustom *p_b) {
const ManagedCallable *a = static_cast<const ManagedCallable *>(p_a);
const ManagedCallable *b = static_cast<const ManagedCallable *>(p_b);
if (a->delegate_handle.value == b->delegate_handle.value) {
return true;
}
if (!a->delegate_handle.value || !b->delegate_handle.value) {
return false;
}
// Call Delegate's 'Equals'
return GDMonoCache::managed_callbacks.DelegateUtils_DelegateEquals(
a->delegate_handle, b->delegate_handle);
}
bool ManagedCallable::compare_less(const CallableCustom *p_a, const CallableCustom *p_b) {
if (compare_equal(p_a, p_b)) {
return false;
}
return p_a < p_b;
}
uint32_t ManagedCallable::hash() const {
return GDMonoCache::managed_callbacks.DelegateUtils_DelegateHash(delegate_handle);
}
String ManagedCallable::get_as_text() const {
return "Delegate::Invoke";
}
CallableCustom::CompareEqualFunc ManagedCallable::get_compare_equal_func() const {
return compare_equal_func_ptr;
}
CallableCustom::CompareLessFunc ManagedCallable::get_compare_less_func() const {
return compare_less_func_ptr;
}
ObjectID ManagedCallable::get_object() const {
if (object_id != ObjectID()) {
return object_id;
}
return CSharpLanguage::get_singleton()->get_managed_callable_middleman()->get_instance_id();
}
int ManagedCallable::get_argument_count(bool &r_is_valid) const {
return GDMonoCache::managed_callbacks.DelegateUtils_GetArgumentCount(delegate_handle, &r_is_valid);
}
void ManagedCallable::call(const Variant **p_arguments, int p_argcount, Variant &r_return_value, Callable::CallError &r_call_error) const {
r_call_error.error = Callable::CallError::CALL_ERROR_INVALID_METHOD; // Can't find anything better
r_return_value = Variant();
ERR_FAIL_NULL(delegate_handle.value);
GDMonoCache::managed_callbacks.DelegateUtils_InvokeWithVariantArgs(
delegate_handle, trampoline, p_arguments, p_argcount, &r_return_value);
r_call_error.error = Callable::CallError::CALL_OK;
}
void ManagedCallable::release_delegate_handle() {
if (delegate_handle.value) {
GDMonoCache::managed_callbacks.GCHandleBridge_FreeGCHandle(delegate_handle);
delegate_handle = { nullptr };
}
}
// Why you do this clang-format...
/* clang-format off */
ManagedCallable::ManagedCallable(GCHandleIntPtr p_delegate_handle, void *p_trampoline, ObjectID p_object_id) :
delegate_handle(p_delegate_handle), trampoline(p_trampoline), object_id(p_object_id) {
#ifdef GD_MONO_HOT_RELOAD
{
MutexLock lock(instances_mutex);
instances.add(&self_instance);
}
#endif
}
/* clang-format on */
ManagedCallable::~ManagedCallable() {
#ifdef GD_MONO_HOT_RELOAD
{
MutexLock lock(instances_mutex);
instances.remove(&self_instance);
instances_pending_reload.erase(this);
}
#endif
release_delegate_handle();
}