geode/loader/include/Geode/modify/AsStaticFunction.hpp

51 lines
3.6 KiB
C++

#pragma once
#include "../utils/addresser.hpp"
#include "Traits.hpp"
#include "../loader/Log.hpp"
namespace geode::modifier {
/**
* A helper struct that generates a static function that calls the given function.
*/
#define GEODE_AS_STATIC_FUNCTION(FunctionName_) \
template <class Class2, class FunctionType> \
struct AsStaticFunction_##FunctionName_ { \
template <class FunctionType2> \
struct Impl {}; \
template <class Return, class... Params> \
struct Impl<Return (*)(Params...)> { \
static Return GEODE_CDECL_CALL function(Params... params) { \
return Class2::FunctionName_(params...); \
} \
}; \
template <class Return, class Class, class... Params> \
struct Impl<Return (Class::*)(Params...)> { \
static Return GEODE_CDECL_CALL function(Class* self, Params... params) { \
auto self2 = addresser::rthunkAdjust( \
Resolve<Params...>::func(&Class2::FunctionName_), self \
); \
return self2->Class2::FunctionName_(params...); \
} \
}; \
template <class Return, class Class, class... Params> \
struct Impl<Return (Class::*)(Params...) const> { \
static Return GEODE_CDECL_CALL function(Class const* self, Params... params) { \
auto self2 = addresser::rthunkAdjust( \
Resolve<Params...>::func(&Class2::FunctionName_), self \
); \
return self2->Class2::FunctionName_(params...); \
} \
}; \
static constexpr auto value = &Impl<FunctionType>::function; \
};
GEODE_AS_STATIC_FUNCTION(constructor)
GEODE_AS_STATIC_FUNCTION(destructor)
#define GEODE_CONCEPT_FUNCTION_CHECK(FunctionName_) \
template <class Class, class... Args> \
concept FunctionExists_##FunctionName_ = requires(Class* self, Args... args) { \
self->FunctionName_(args...); \
};
}