mirror of
https://github.com/godotengine/godot.git
synced 2024-12-21 10:25:24 +08:00
220c8e8344
Was missed in #36393 because no `callable_mp()` calls were actually compiled with `tools=no` in that PR. Also work around GCC warning that also affects the `call_with_variant_args_ret_helper` variant.
293 lines
11 KiB
C++
293 lines
11 KiB
C++
/*************************************************************************/
|
|
/* callable_method_pointer.h */
|
|
/*************************************************************************/
|
|
/* 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. */
|
|
/*************************************************************************/
|
|
|
|
#ifndef CALLABLE_METHOD_POINTER_H
|
|
#define CALLABLE_METHOD_POINTER_H
|
|
|
|
#include "core/callable.h"
|
|
#include "core/hashfuncs.h"
|
|
#include "core/object.h"
|
|
#include "core/simple_type.h"
|
|
|
|
class CallableCustomMethodPointerBase : public CallableCustom {
|
|
|
|
uint32_t *comp_ptr;
|
|
uint32_t comp_size;
|
|
uint32_t h;
|
|
#ifdef DEBUG_METHODS_ENABLED
|
|
const char *text = "";
|
|
#endif
|
|
static bool compare_equal(const CallableCustom *p_a, const CallableCustom *p_b);
|
|
static bool compare_less(const CallableCustom *p_a, const CallableCustom *p_b);
|
|
|
|
protected:
|
|
void _setup(uint32_t *p_base_ptr, uint32_t p_ptr_size);
|
|
|
|
public:
|
|
#ifdef DEBUG_METHODS_ENABLED
|
|
void set_text(const char *p_text) {
|
|
text = p_text;
|
|
}
|
|
virtual String get_as_text() const {
|
|
return text;
|
|
}
|
|
#else
|
|
virtual String get_as_text() const {
|
|
return String();
|
|
}
|
|
#endif
|
|
virtual CompareEqualFunc get_compare_equal_func() const;
|
|
virtual CompareLessFunc get_compare_less_func() const;
|
|
|
|
virtual uint32_t hash() const;
|
|
};
|
|
|
|
#ifdef DEBUG_METHODS_ENABLED
|
|
|
|
template <class T>
|
|
struct VariantCasterAndValidate {
|
|
|
|
static _FORCE_INLINE_ T cast(const Variant **p_args, uint32_t p_arg_idx, Callable::CallError &r_error) {
|
|
Variant::Type argtype = GetTypeInfo<T>::VARIANT_TYPE;
|
|
if (!Variant::can_convert_strict(p_args[p_arg_idx]->get_type(), argtype)) {
|
|
r_error.error = Callable::CallError::CALL_ERROR_INVALID_ARGUMENT;
|
|
r_error.argument = p_arg_idx;
|
|
r_error.expected = argtype;
|
|
}
|
|
|
|
return VariantCaster<T>::cast(*p_args[p_arg_idx]);
|
|
}
|
|
};
|
|
|
|
template <class T>
|
|
struct VariantCasterAndValidate<T &> {
|
|
|
|
static _FORCE_INLINE_ T cast(const Variant **p_args, uint32_t p_arg_idx, Callable::CallError &r_error) {
|
|
Variant::Type argtype = GetTypeInfo<T>::VARIANT_TYPE;
|
|
if (!Variant::can_convert_strict(p_args[p_arg_idx]->get_type(), argtype)) {
|
|
r_error.error = Callable::CallError::CALL_ERROR_INVALID_ARGUMENT;
|
|
r_error.argument = p_arg_idx;
|
|
r_error.expected = argtype;
|
|
}
|
|
|
|
return VariantCaster<T>::cast(*p_args[p_arg_idx]);
|
|
}
|
|
};
|
|
|
|
template <class T>
|
|
struct VariantCasterAndValidate<const T &> {
|
|
|
|
static _FORCE_INLINE_ T cast(const Variant **p_args, uint32_t p_arg_idx, Callable::CallError &r_error) {
|
|
Variant::Type argtype = GetTypeInfo<T>::VARIANT_TYPE;
|
|
if (!Variant::can_convert_strict(p_args[p_arg_idx]->get_type(), argtype)) {
|
|
r_error.error = Callable::CallError::CALL_ERROR_INVALID_ARGUMENT;
|
|
r_error.argument = p_arg_idx;
|
|
r_error.expected = argtype;
|
|
}
|
|
|
|
return VariantCaster<T>::cast(*p_args[p_arg_idx]);
|
|
}
|
|
};
|
|
|
|
#endif // DEBUG_METHODS_ENABLED
|
|
|
|
// GCC 8 raises "parameter 'p_args' set but not used" here, probably using a
|
|
// template version that does not have arguments and thus sees it unused, but
|
|
// obviously the template can be used for functions with and without them, and
|
|
// the optimizer will get rid of it anyway.
|
|
#if defined(DEBUG_METHODS_ENABLED) && defined(__GNUC__) && !defined(__clang__)
|
|
#pragma GCC diagnostic push
|
|
#pragma GCC diagnostic ignored "-Wunused-but-set-parameter"
|
|
#endif
|
|
|
|
template <class T, class... P, size_t... Is>
|
|
void call_with_variant_args_helper(T *p_instance, void (T::*p_method)(P...), const Variant **p_args, Callable::CallError &r_error, IndexSequence<Is...>) {
|
|
r_error.error = Callable::CallError::CALL_OK;
|
|
|
|
#ifdef DEBUG_METHODS_ENABLED
|
|
(p_instance->*p_method)(VariantCasterAndValidate<P>::cast(p_args, Is, r_error)...);
|
|
#else
|
|
(p_instance->*p_method)(VariantCaster<P>::cast(p_args[Is])...);
|
|
#endif
|
|
}
|
|
|
|
#if defined(DEBUG_METHODS_ENABLED) && defined(__GNUC__) && !defined(__clang__)
|
|
#pragma GCC diagnostic pop
|
|
#endif
|
|
|
|
template <class T, class... P>
|
|
void call_with_variant_args(T *p_instance, void (T::*p_method)(P...), const Variant **p_args, int p_argcount, Callable::CallError &r_error) {
|
|
#ifdef DEBUG_METHODS_ENABLED
|
|
if ((size_t)p_argcount > sizeof...(P)) {
|
|
r_error.error = Callable::CallError::CALL_ERROR_TOO_MANY_ARGUMENTS;
|
|
r_error.argument = sizeof...(P);
|
|
return;
|
|
}
|
|
|
|
if ((size_t)p_argcount < sizeof...(P)) {
|
|
r_error.error = Callable::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS;
|
|
r_error.argument = sizeof...(P);
|
|
return;
|
|
}
|
|
#endif
|
|
call_with_variant_args_helper<T, P...>(p_instance, p_method, p_args, r_error, BuildIndexSequence<sizeof...(P)>{});
|
|
}
|
|
|
|
template <class T, class... P>
|
|
class CallableCustomMethodPointer : public CallableCustomMethodPointerBase {
|
|
|
|
struct Data {
|
|
T *instance;
|
|
void (T::*method)(P...);
|
|
} data;
|
|
|
|
public:
|
|
virtual ObjectID get_object() const { return data.instance->get_instance_id(); }
|
|
|
|
virtual void call(const Variant **p_arguments, int p_argcount, Variant &r_return_value, Callable::CallError &r_call_error) const {
|
|
|
|
call_with_variant_args(data.instance, data.method, p_arguments, p_argcount, r_call_error);
|
|
}
|
|
|
|
CallableCustomMethodPointer(T *p_instance, void (T::*p_method)(P...)) {
|
|
zeromem(&data, sizeof(Data)); // Clear beforehand, may have padding bytes.
|
|
data.instance = p_instance;
|
|
data.method = p_method;
|
|
_setup((uint32_t *)&data, sizeof(Data));
|
|
}
|
|
};
|
|
|
|
template <class T, class... P>
|
|
Callable create_custom_callable_function_pointer(T *p_instance,
|
|
#ifdef DEBUG_METHODS_ENABLED
|
|
const char *p_func_text,
|
|
#endif
|
|
void (T::*p_method)(P...)) {
|
|
|
|
typedef CallableCustomMethodPointer<T, P...> CCMP; // Messes with memnew otherwise.
|
|
CCMP *ccmp = memnew(CCMP(p_instance, p_method));
|
|
#ifdef DEBUG_METHODS_ENABLED
|
|
ccmp->set_text(p_func_text + 1); // Try to get rid of the ampersand.
|
|
#endif
|
|
return Callable(ccmp);
|
|
}
|
|
|
|
// VERSION WITH RETURN
|
|
|
|
// GCC 8 raises "parameter 'p_args' set but not used" here, probably using a
|
|
// template version that does not have arguments and thus sees it unused, but
|
|
// obviously the template can be used for functions with and without them, and
|
|
// the optimizer will get rid of it anyway.
|
|
#if defined(DEBUG_METHODS_ENABLED) && defined(__GNUC__) && !defined(__clang__)
|
|
#pragma GCC diagnostic push
|
|
#pragma GCC diagnostic ignored "-Wunused-but-set-parameter"
|
|
#endif
|
|
|
|
template <class T, class R, class... P, size_t... Is>
|
|
void call_with_variant_args_ret_helper(T *p_instance, R (T::*p_method)(P...), const Variant **p_args, Variant &r_ret, Callable::CallError &r_error, IndexSequence<Is...>) {
|
|
r_error.error = Callable::CallError::CALL_OK;
|
|
|
|
#ifdef DEBUG_METHODS_ENABLED
|
|
r_ret = (p_instance->*p_method)(VariantCasterAndValidate<P>::cast(p_args, Is, r_error)...);
|
|
#else
|
|
(p_instance->*p_method)(VariantCaster<P>::cast(p_args[Is])...);
|
|
#endif
|
|
}
|
|
|
|
#if defined(DEBUG_METHODS_ENABLED) && defined(__GNUC__) && !defined(__clang__)
|
|
#pragma GCC diagnostic pop
|
|
#endif
|
|
|
|
template <class T, class R, class... P>
|
|
void call_with_variant_args_ret(T *p_instance, R (T::*p_method)(P...), const Variant **p_args, int p_argcount, Variant &r_ret, Callable::CallError &r_error) {
|
|
#ifdef DEBUG_METHODS_ENABLED
|
|
if ((size_t)p_argcount > sizeof...(P)) {
|
|
r_error.error = Callable::CallError::CALL_ERROR_TOO_MANY_ARGUMENTS;
|
|
r_error.argument = sizeof...(P);
|
|
return;
|
|
}
|
|
|
|
if ((size_t)p_argcount < sizeof...(P)) {
|
|
r_error.error = Callable::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS;
|
|
r_error.argument = sizeof...(P);
|
|
return;
|
|
}
|
|
#endif
|
|
call_with_variant_args_ret_helper<T, R, P...>(p_instance, p_method, p_args, r_ret, r_error, BuildIndexSequence<sizeof...(P)>{});
|
|
}
|
|
|
|
template <class T, class R, class... P>
|
|
class CallableCustomMethodPointerRet : public CallableCustomMethodPointerBase {
|
|
|
|
struct Data {
|
|
T *instance;
|
|
R(T::*method)
|
|
(P...);
|
|
} data;
|
|
|
|
public:
|
|
virtual ObjectID get_object() const { return data.instance->get_instance_id(); }
|
|
|
|
virtual void call(const Variant **p_arguments, int p_argcount, Variant &r_return_value, Callable::CallError &r_call_error) const {
|
|
|
|
call_with_variant_args_ret(data.instance, data.method, p_arguments, p_argcount, r_return_value, r_call_error);
|
|
}
|
|
|
|
CallableCustomMethodPointerRet(T *p_instance, R (T::*p_method)(P...)) {
|
|
zeromem(&data, sizeof(Data)); // Clear beforehand, may have padding bytes.
|
|
data.instance = p_instance;
|
|
data.method = p_method;
|
|
_setup((uint32_t *)&data, sizeof(Data));
|
|
}
|
|
};
|
|
|
|
template <class T, class R, class... P>
|
|
Callable create_custom_callable_function_pointer(T *p_instance,
|
|
#ifdef DEBUG_METHODS_ENABLED
|
|
const char *p_func_text,
|
|
#endif
|
|
R (T::*p_method)(P...)) {
|
|
|
|
typedef CallableCustomMethodPointerRet<T, R, P...> CCMP; // Messes with memnew otherwise.
|
|
CCMP *ccmp = memnew(CCMP(p_instance, p_method));
|
|
#ifdef DEBUG_METHODS_ENABLED
|
|
ccmp->set_text(p_func_text + 1); // Try to get rid of the ampersand.
|
|
#endif
|
|
return Callable(ccmp);
|
|
}
|
|
|
|
#ifdef DEBUG_METHODS_ENABLED
|
|
#define callable_mp(I, M) create_custom_callable_function_pointer(I, #M, M)
|
|
#else
|
|
#define callable_mp(I, M) create_custom_callable_function_pointer(I, M)
|
|
#endif
|
|
|
|
#endif // CALLABLE_METHOD_POINTER_H
|