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godot/core/variant/binder_common.h

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Refactor MethodBind to use variadic templates Removed make_binders and the old style generated binders.
2020-10-15 12:29:59 -03:00
/*************************************************************************/
/* binder_common.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
Update copyright statements to 2021 Happy new year to the wonderful Godot community! 2020 has been a tough year for most of us personally, but a good year for Godot development nonetheless with a huge amount of work done towards Godot 4.0 and great improvements backported to the long-lived 3.2 branch. We've had close to 400 contributors to engine code this year, authoring near 7,000 commit! (And that's only for the `master` branch and for the engine code, there's a lot more when counting docs, demos and other first-party repos.) Here's to a great year 2021 for all Godot users 🎆
2021-01-01 20:13:46 +01:00
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
Refactor MethodBind to use variadic templates Removed make_binders and the old style generated binders.
2020-10-15 12:29:59 -03:00
/* */
/* 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 BINDER_COMMON_H
#define BINDER_COMMON_H
Reorganized core/ directory, it was too fatty already -Removed FuncRef, since Callable makes it obsolete -Removed int_types.h as its obsolete in c++11+ -Changed color names code
2020-11-07 19:33:38 -03:00
#include "core/object/object.h"
#include "core/templates/list.h"
#include "core/templates/simple_type.h"
Refactor MethodBind to use variadic templates Removed make_binders and the old style generated binders.
2020-10-15 12:29:59 -03:00
#include "core/typedefs.h"
Reorganized core/ directory, it was too fatty already -Removed FuncRef, since Callable makes it obsolete -Removed int_types.h as its obsolete in c++11+ -Changed color names code
2020-11-07 19:33:38 -03:00
#include "core/variant/method_ptrcall.h"
#include "core/variant/type_info.h"
#include "core/variant/variant.h"
#include "core/variant/variant_internal.h"
Refactor MethodBind to use variadic templates Removed make_binders and the old style generated binders.
2020-10-15 12:29:59 -03:00
#include <stdio.h>
template <class T>
struct VariantCaster {
static _FORCE_INLINE_ T cast(const Variant &p_variant) {
return p_variant;
}
};
template <class T>
struct VariantCaster<T &> {
static _FORCE_INLINE_ T cast(const Variant &p_variant) {
return p_variant;
}
};
template <class T>
struct VariantCaster<const T &> {
static _FORCE_INLINE_ T cast(const Variant &p_variant) {
return p_variant;
}
};
#define VARIANT_ENUM_CAST(m_enum) \
MAKE_ENUM_TYPE_INFO(m_enum) \
template <> \
struct VariantCaster<m_enum> { \
static _FORCE_INLINE_ m_enum cast(const Variant &p_variant) { \
return (m_enum)p_variant.operator int(); \
} \
}; \
template <> \
struct PtrToArg<m_enum> { \
_FORCE_INLINE_ static m_enum convert(const void *p_ptr) { \
return m_enum(*reinterpret_cast<const int *>(p_ptr)); \
} \
_FORCE_INLINE_ static void encode(m_enum p_val, const void *p_ptr) { \
*(int *)p_ptr = p_val; \
} \
};
// Object enum casts must go here
VARIANT_ENUM_CAST(Object::ConnectFlags);
VARIANT_ENUM_CAST(Vector3::Axis);
VARIANT_ENUM_CAST(Error);
Rename Control margin to offset
2020-12-22 16:24:29 +00:00
VARIANT_ENUM_CAST(Side);
Refactor MethodBind to use variadic templates Removed make_binders and the old style generated binders.
2020-10-15 12:29:59 -03:00
VARIANT_ENUM_CAST(Corner);
VARIANT_ENUM_CAST(Orientation);
VARIANT_ENUM_CAST(HAlign);
VARIANT_ENUM_CAST(VAlign);
VARIANT_ENUM_CAST(PropertyHint);
VARIANT_ENUM_CAST(PropertyUsageFlags);
VARIANT_ENUM_CAST(Variant::Type);
VARIANT_ENUM_CAST(Variant::Operator);
template <>
struct VariantCaster<char32_t> {
static _FORCE_INLINE_ char32_t cast(const Variant &p_variant) {
return (char32_t)p_variant.operator int();
}
};
Core: Always enable ptrcall, remove PTRCALL_ENABLED define ptrcall is now also used to optimize calls in GDScript, on top of the existing use by the GDNative and Mono modules. It no longer makes sense to make it optional.
2020-11-25 14:08:17 +01:00
Refactor MethodBind to use variadic templates Removed make_binders and the old style generated binders.
2020-10-15 12:29:59 -03:00
template <>
struct PtrToArg<char32_t> {
_FORCE_INLINE_ static char32_t convert(const void *p_ptr) {
return char32_t(*reinterpret_cast<const int *>(p_ptr));
}
_FORCE_INLINE_ static void encode(char32_t p_val, const void *p_ptr) {
*(int *)p_ptr = p_val;
}
};
template <typename T>
struct VariantObjectClassChecker {
static _FORCE_INLINE_ bool check(const Variant &p_variant) {
return true;
}
};
template <>
struct VariantObjectClassChecker<Node *> {
static _FORCE_INLINE_ bool check(const Variant &p_variant) {
Object *obj = p_variant;
Node *node = p_variant;
return node || !obj;
}
};
template <>
struct VariantObjectClassChecker<Control *> {
static _FORCE_INLINE_ bool check(const Variant &p_variant) {
Object *obj = p_variant;
Control *control = p_variant;
return control || !obj;
}
};
#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) ||
!VariantObjectClassChecker<T>::check(p_args[p_arg_idx])) {
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) ||
!VariantObjectClassChecker<T>::check(p_args[p_arg_idx])) {
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) ||
!VariantObjectClassChecker<T>::check(p_args[p_arg_idx])) {
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
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
(void)(p_args); //avoid warning
}
template <class T, class... P, size_t... Is>
void call_with_variant_argsc_helper(T *p_instance, void (T::*p_method)(P...) const, 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
(void)(p_args); //avoid warning
}
template <class T, class... P, size_t... Is>
void call_with_ptr_args_helper(T *p_instance, void (T::*p_method)(P...), const void **p_args, IndexSequence<Is...>) {
(p_instance->*p_method)(PtrToArg<P>::convert(p_args[Is])...);
}
template <class T, class... P, size_t... Is>
void call_with_ptr_argsc_helper(T *p_instance, void (T::*p_method)(P...) const, const void **p_args, IndexSequence<Is...>) {
(p_instance->*p_method)(PtrToArg<P>::convert(p_args[Is])...);
}
template <class T, class R, class... P, size_t... Is>
void call_with_ptr_args_ret_helper(T *p_instance, R (T::*p_method)(P...), const void **p_args, void *r_ret, IndexSequence<Is...>) {
PtrToArg<R>::encode((p_instance->*p_method)(PtrToArg<P>::convert(p_args[Is])...), r_ret);
}
template <class T, class R, class... P, size_t... Is>
void call_with_ptr_args_retc_helper(T *p_instance, R (T::*p_method)(P...) const, const void **p_args, void *r_ret, IndexSequence<Is...>) {
PtrToArg<R>::encode((p_instance->*p_method)(PtrToArg<P>::convert(p_args[Is])...), r_ret);
}
template <class T, class R, class... P, size_t... Is>
void call_with_ptr_args_static_retc_helper(T *p_instance, R (*p_method)(T *, P...), const void **p_args, void *r_ret, IndexSequence<Is...>) {
PtrToArg<R>::encode(p_method(p_instance, PtrToArg<P>::convert(p_args[Is])...), r_ret);
}
template <class T, class... P, size_t... Is>
void call_with_validated_variant_args_helper(T *p_instance, void (T::*p_method)(P...), const Variant **p_args, IndexSequence<Is...>) {
(p_instance->*p_method)((VariantInternalAccessor<typename GetSimpleTypeT<P>::type_t>::get(p_args[Is]))...);
}
template <class T, class... P, size_t... Is>
void call_with_validated_variant_argsc_helper(T *p_instance, void (T::*p_method)(P...) const, const Variant **p_args, IndexSequence<Is...>) {
(p_instance->*p_method)((VariantInternalAccessor<typename GetSimpleTypeT<P>::type_t>::get(p_args[Is]))...);
}
template <class T, class R, class... P, size_t... Is>
void call_with_validated_variant_args_ret_helper(T *p_instance, R (T::*p_method)(P...), const Variant **p_args, Variant *r_ret, IndexSequence<Is...>) {
VariantInternalAccessor<typename GetSimpleTypeT<R>::type_t>::set(r_ret, (p_instance->*p_method)((VariantInternalAccessor<typename GetSimpleTypeT<P>::type_t>::get(p_args[Is]))...));
}
template <class T, class R, class... P, size_t... Is>
void call_with_validated_variant_args_retc_helper(T *p_instance, R (T::*p_method)(P...) const, const Variant **p_args, Variant *r_ret, IndexSequence<Is...>) {
VariantInternalAccessor<typename GetSimpleTypeT<R>::type_t>::set(r_ret, (p_instance->*p_method)((VariantInternalAccessor<typename GetSimpleTypeT<P>::type_t>::get(p_args[Is]))...));
}
template <class T, class R, class... P, size_t... Is>
void call_with_validated_variant_args_static_retc_helper(T *p_instance, R (*p_method)(T *, P...), const Variant **p_args, Variant *r_ret, IndexSequence<Is...>) {
VariantInternalAccessor<typename GetSimpleTypeT<R>::type_t>::set(r_ret, p_method(p_instance, (VariantInternalAccessor<typename GetSimpleTypeT<P>::type_t>::get(p_args[Is]))...));
}
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>
void call_with_variant_args_dv(T *p_instance, void (T::*p_method)(P...), const Variant **p_args, int p_argcount, Callable::CallError &r_error, const Vector<Variant> &default_values) {
#ifdef DEBUG_ENABLED
if ((size_t)p_argcount > sizeof...(P)) {
r_error.error = Callable::CallError::CALL_ERROR_TOO_MANY_ARGUMENTS;
r_error.argument = sizeof...(P);
return;
}
#endif
int32_t missing = (int32_t)sizeof...(P) - (int32_t)p_argcount;
int32_t dvs = default_values.size();
#ifdef DEBUG_ENABLED
if (missing > dvs) {
r_error.error = Callable::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS;
r_error.argument = sizeof...(P);
return;
}
#endif
const Variant *args[sizeof...(P) == 0 ? 1 : sizeof...(P)]; //avoid zero sized array
for (int32_t i = 0; i < (int32_t)sizeof...(P); i++) {
if (i < p_argcount) {
args[i] = p_args[i];
} else {
args[i] = &default_values[i - p_argcount + (dvs - missing)];
}
}
call_with_variant_args_helper(p_instance, p_method, args, r_error, BuildIndexSequence<sizeof...(P)>{});
}
template <class T, class... P>
void call_with_variant_argsc(T *p_instance, void (T::*p_method)(P...) const, 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>
void call_with_variant_argsc_dv(T *p_instance, void (T::*p_method)(P...) const, const Variant **p_args, int p_argcount, Callable::CallError &r_error, const Vector<Variant> &default_values) {
#ifdef DEBUG_ENABLED
if ((size_t)p_argcount > sizeof...(P)) {
r_error.error = Callable::CallError::CALL_ERROR_TOO_MANY_ARGUMENTS;
r_error.argument = sizeof...(P);
return;
}
#endif
int32_t missing = (int32_t)sizeof...(P) - (int32_t)p_argcount;
int32_t dvs = default_values.size();
#ifdef DEBUG_ENABLED
if (missing > dvs) {
r_error.error = Callable::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS;
r_error.argument = sizeof...(P);
return;
}
#endif
const Variant *args[sizeof...(P) == 0 ? 1 : sizeof...(P)]; //avoid zero sized array
for (int32_t i = 0; i < (int32_t)sizeof...(P); i++) {
if (i < p_argcount) {
args[i] = p_args[i];
} else {
args[i] = &default_values[i - p_argcount + (dvs - missing)];
}
}
call_with_variant_argsc_helper(p_instance, p_method, args, r_error, BuildIndexSequence<sizeof...(P)>{});
}
template <class T, class R, class... P>
void call_with_variant_args_ret_dv(T *p_instance, R (T::*p_method)(P...), const Variant **p_args, int p_argcount, Variant &r_ret, Callable::CallError &r_error, const Vector<Variant> &default_values) {
#ifdef DEBUG_ENABLED
if ((size_t)p_argcount > sizeof...(P)) {
r_error.error = Callable::CallError::CALL_ERROR_TOO_MANY_ARGUMENTS;
r_error.argument = sizeof...(P);
return;
}
#endif
int32_t missing = (int32_t)sizeof...(P) - (int32_t)p_argcount;
int32_t dvs = default_values.size();
#ifdef DEBUG_ENABLED
if (missing > dvs) {
r_error.error = Callable::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS;
r_error.argument = sizeof...(P);
return;
}
#endif
const Variant *args[sizeof...(P) == 0 ? 1 : sizeof...(P)]; //avoid zero sized array
for (int32_t i = 0; i < (int32_t)sizeof...(P); i++) {
if (i < p_argcount) {
args[i] = p_args[i];
} else {
args[i] = &default_values[i - p_argcount + (dvs - missing)];
}
}
call_with_variant_args_ret_helper(p_instance, p_method, args, r_ret, r_error, BuildIndexSequence<sizeof...(P)>{});
}
template <class T, class R, class... P>
void call_with_variant_args_retc_dv(T *p_instance, R (T::*p_method)(P...) const, const Variant **p_args, int p_argcount, Variant &r_ret, Callable::CallError &r_error, const Vector<Variant> &default_values) {
#ifdef DEBUG_ENABLED
if ((size_t)p_argcount > sizeof...(P)) {
r_error.error = Callable::CallError::CALL_ERROR_TOO_MANY_ARGUMENTS;
r_error.argument = sizeof...(P);
return;
}
#endif
int32_t missing = (int32_t)sizeof...(P) - (int32_t)p_argcount;
int32_t dvs = default_values.size();
#ifdef DEBUG_ENABLED
if (missing > dvs) {
r_error.error = Callable::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS;
r_error.argument = sizeof...(P);
return;
}
#endif
const Variant *args[sizeof...(P) == 0 ? 1 : sizeof...(P)]; //avoid zero sized array
for (int32_t i = 0; i < (int32_t)sizeof...(P); i++) {
if (i < p_argcount) {
args[i] = p_args[i];
} else {
args[i] = &default_values[i - p_argcount + (dvs - missing)];
}
}
call_with_variant_args_retc_helper(p_instance, p_method, args, r_ret, r_error, BuildIndexSequence<sizeof...(P)>{});
}
template <class T, class... P>
void call_with_ptr_args(T *p_instance, void (T::*p_method)(P...), const void **p_args) {
call_with_ptr_args_helper<T, P...>(p_instance, p_method, p_args, BuildIndexSequence<sizeof...(P)>{});
}
template <class T, class... P>
void call_with_ptr_argsc(T *p_instance, void (T::*p_method)(P...) const, const void **p_args) {
call_with_ptr_argsc_helper<T, P...>(p_instance, p_method, p_args, BuildIndexSequence<sizeof...(P)>{});
}
template <class T, class R, class... P>
void call_with_ptr_args_ret(T *p_instance, R (T::*p_method)(P...), const void **p_args, void *r_ret) {
call_with_ptr_args_ret_helper<T, R, P...>(p_instance, p_method, p_args, r_ret, BuildIndexSequence<sizeof...(P)>{});
}
template <class T, class R, class... P>
void call_with_ptr_args_retc(T *p_instance, R (T::*p_method)(P...) const, const void **p_args, void *r_ret) {
call_with_ptr_args_retc_helper<T, R, P...>(p_instance, p_method, p_args, r_ret, BuildIndexSequence<sizeof...(P)>{});
}
template <class T, class R, class... P>
void call_with_ptr_args_static_retc(T *p_instance, R (*p_method)(T *, P...), const void **p_args, void *r_ret) {
call_with_ptr_args_static_retc_helper<T, R, P...>(p_instance, p_method, p_args, r_ret, BuildIndexSequence<sizeof...(P)>{});
}
template <class T, class... P>
void call_with_validated_variant_args(Variant *base, void (T::*p_method)(P...), const Variant **p_args) {
call_with_validated_variant_args_helper<T, P...>(VariantGetInternalPtr<T>::get_ptr(base), p_method, p_args, BuildIndexSequence<sizeof...(P)>{});
}
template <class T, class R, class... P>
void call_with_validated_variant_args_ret(Variant *base, R (T::*p_method)(P...), const Variant **p_args, Variant *r_ret) {
call_with_validated_variant_args_ret_helper<T, R, P...>(VariantGetInternalPtr<T>::get_ptr(base), p_method, p_args, r_ret, BuildIndexSequence<sizeof...(P)>{});
}
template <class T, class R, class... P>
void call_with_validated_variant_args_retc(Variant *base, R (T::*p_method)(P...) const, const Variant **p_args, Variant *r_ret) {
call_with_validated_variant_args_retc_helper<T, R, P...>(VariantGetInternalPtr<T>::get_ptr(base), p_method, p_args, r_ret, BuildIndexSequence<sizeof...(P)>{});
}
template <class T, class R, class... P>
void call_with_validated_variant_args_static_retc(Variant *base, R (*p_method)(T *, P...), const Variant **p_args, Variant *r_ret) {
call_with_validated_variant_args_static_retc_helper<T, R, P...>(VariantGetInternalPtr<T>::get_ptr(base), p_method, p_args, r_ret, BuildIndexSequence<sizeof...(P)>{});
}
// GCC raises "parameter 'p_args' set but not used" when P = {},
// it's not clever enough to treat other P values as making this branch valid.
#if defined(DEBUG_METHODS_ENABLED) && defined(__GNUC__) && !defined(__clang__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-but-set-parameter"
#endif
#ifdef DEBUG_METHODS_ENABLED
template <class Q>
void call_get_argument_type_helper(int p_arg, int &index, Variant::Type &type) {
if (p_arg == index) {
type = GetTypeInfo<Q>::VARIANT_TYPE;
}
index++;
}
template <class... P>
Variant::Type call_get_argument_type(int p_arg) {
Variant::Type type = Variant::NIL;
int index = 0;
// I think rocket science is simpler than modern C++.
using expand_type = int[];
expand_type a{ 0, (call_get_argument_type_helper<P>(p_arg, index, type), 0)... };
(void)a; // Suppress (valid, but unavoidable) -Wunused-variable warning.
(void)index; // Suppress GCC warning.
return type;
}
template <class Q>
void call_get_argument_type_info_helper(int p_arg, int &index, PropertyInfo &info) {
if (p_arg == index) {
info = GetTypeInfo<Q>::get_class_info();
}
index++;
}
template <class... P>
void call_get_argument_type_info(int p_arg, PropertyInfo &info) {
int index = 0;
// I think rocket science is simpler than modern C++.
using expand_type = int[];
expand_type a{ 0, (call_get_argument_type_info_helper<P>(p_arg, index, info), 0)... };
(void)a; // Suppress (valid, but unavoidable) -Wunused-variable warning.
(void)index; // Suppress GCC warning.
}
template <class Q>
void call_get_argument_metadata_helper(int p_arg, int &index, GodotTypeInfo::Metadata &md) {
if (p_arg == index) {
md = GetTypeInfo<Q>::METADATA;
}
index++;
}
template <class... P>
GodotTypeInfo::Metadata call_get_argument_metadata(int p_arg) {
GodotTypeInfo::Metadata md = GodotTypeInfo::METADATA_NONE;
int index = 0;
// I think rocket science is simpler than modern C++.
using expand_type = int[];
expand_type a{ 0, (call_get_argument_metadata_helper<P>(p_arg, index, md), 0)... };
(void)a; // Suppress (valid, but unavoidable) -Wunused-variable warning.
(void)index;
return md;
}
#else
template <class... P>
Variant::Type call_get_argument_type(int p_arg) {
return Variant::NIL;
}
#endif // DEBUG_METHODS_ENABLED
//////////////////////
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
r_ret = (p_instance->*p_method)(VariantCaster<P>::cast(*p_args[Is])...);
#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, size_t... Is>
void call_with_variant_args_retc_helper(T *p_instance, R (T::*p_method)(P...) const, 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
r_ret = (p_instance->*p_method)(VariantCaster<P>::cast(*p_args[Is])...);
#endif
(void)p_args;
}
template <class T, class R, class... P>
void call_with_variant_args_retc(T *p_instance, R (T::*p_method)(P...) const, 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_retc_helper<T, R, P...>(p_instance, p_method, p_args, r_ret, r_error, BuildIndexSequence<sizeof...(P)>{});
}
template <class T, class R, class... P, size_t... Is>
void call_with_variant_args_retc_static_helper(T *p_instance, R (*p_method)(T *, 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_method)(p_instance, VariantCasterAndValidate<P>::cast(p_args, Is, r_error)...);
#else
r_ret = (p_method)(p_instance, VariantCaster<P>::cast(*p_args[Is])...);
#endif
(void)p_args;
}
Refactor variant built-in methods yet again. * Using C-style function pointers now, InternalMethod is gone. * This ensures much better performance in typed code. * Renamed builtin_funcs to utility_funcs, to avoid naming confusion
2020-11-11 13:16:08 -03:00
template <class T, class R, class... P>
void call_with_variant_args_retc_static_helper_dv(T *p_instance, R (*p_method)(T *, P...), const Variant **p_args, int p_argcount, Variant &r_ret, const Vector<Variant> &default_values, Callable::CallError &r_error) {
#ifdef DEBUG_ENABLED
if ((size_t)p_argcount > sizeof...(P)) {
r_error.error = Callable::CallError::CALL_ERROR_TOO_MANY_ARGUMENTS;
r_error.argument = sizeof...(P);
return;
}
#endif
int32_t missing = (int32_t)sizeof...(P) - (int32_t)p_argcount;
int32_t dvs = default_values.size();
#ifdef DEBUG_ENABLED
if (missing > dvs) {
r_error.error = Callable::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS;
r_error.argument = sizeof...(P);
return;
}
#endif
const Variant *args[sizeof...(P) == 0 ? 1 : sizeof...(P)]; //avoid zero sized array
for (int32_t i = 0; i < (int32_t)sizeof...(P); i++) {
if (i < p_argcount) {
args[i] = p_args[i];
} else {
args[i] = &default_values[i - p_argcount + (dvs - missing)];
}
}
call_with_variant_args_retc_static_helper(p_instance, p_method, args, r_ret, r_error, BuildIndexSequence<sizeof...(P)>{});
}
Refactor MethodBind to use variadic templates Removed make_binders and the old style generated binders.
2020-10-15 12:29:59 -03:00
#if defined(DEBUG_METHODS_ENABLED) && defined(__GNUC__) && !defined(__clang__)
#pragma GCC diagnostic pop
#endif
#endif // BINDER_COMMON_H
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