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/*************************************************************************/
/* gd_mono_method_thunk.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 GD_MONO_METHOD_THUNK_H
#define GD_MONO_METHOD_THUNK_H
#include <type_traits>
#include "gd_mono_class.h"
#include "gd_mono_header.h"
#include "gd_mono_marshal.h"
#include "gd_mono_method.h"
#include "gd_mono_utils.h"
#if !defined(JAVASCRIPT_ENABLED) && !defined(IPHONE_ENABLED)
#define HAVE_METHOD_THUNKS
#endif
#ifdef HAVE_METHOD_THUNKS
template <class... ParamTypes>
struct GDMonoMethodThunk {
typedef void(GD_MONO_STDCALL *M)(ParamTypes... p_args, MonoException **);
M mono_method_thunk;
public:
_FORCE_INLINE_ void invoke(ParamTypes... p_args, MonoException **r_exc) {
GD_MONO_BEGIN_RUNTIME_INVOKE;
mono_method_thunk(p_args..., r_exc);
GD_MONO_END_RUNTIME_INVOKE;
}
_FORCE_INLINE_ bool is_null() {
return mono_method_thunk == NULL;
}
_FORCE_INLINE_ void nullify() {
mono_method_thunk = NULL;
}
_FORCE_INLINE_ void set_from_method(GDMonoMethod *p_mono_method) {
#ifdef DEBUG_ENABLED
CRASH_COND(p_mono_method == NULL);
CRASH_COND(p_mono_method->get_return_type().type_encoding != MONO_TYPE_VOID);
if (p_mono_method->is_static()) {
CRASH_COND(p_mono_method->get_parameters_count() != sizeof...(ParamTypes));
} else {
CRASH_COND(p_mono_method->get_parameters_count() != (sizeof...(ParamTypes) - 1));
}
#endif
mono_method_thunk = (M)mono_method_get_unmanaged_thunk(p_mono_method->get_mono_ptr());
}
GDMonoMethodThunk() :
mono_method_thunk(NULL) {
}
explicit GDMonoMethodThunk(GDMonoMethod *p_mono_method) {
set_from_method(p_mono_method);
}
};
template <class R, class... ParamTypes>
struct GDMonoMethodThunkR {
typedef R(GD_MONO_STDCALL *M)(ParamTypes... p_args, MonoException **);
M mono_method_thunk;
public:
_FORCE_INLINE_ R invoke(ParamTypes... p_args, MonoException **r_exc) {
GD_MONO_BEGIN_RUNTIME_INVOKE;
R r = mono_method_thunk(p_args..., r_exc);
GD_MONO_END_RUNTIME_INVOKE;
return r;
}
_FORCE_INLINE_ bool is_null() {
return mono_method_thunk == NULL;
}
_FORCE_INLINE_ void nullify() {
mono_method_thunk = NULL;
}
_FORCE_INLINE_ void set_from_method(GDMonoMethod *p_mono_method) {
#ifdef DEBUG_ENABLED
CRASH_COND(p_mono_method == NULL);
CRASH_COND(p_mono_method->get_return_type().type_encoding == MONO_TYPE_VOID);
if (p_mono_method->is_static()) {
CRASH_COND(p_mono_method->get_parameters_count() != sizeof...(ParamTypes));
} else {
CRASH_COND(p_mono_method->get_parameters_count() != (sizeof...(ParamTypes) - 1));
}
#endif
mono_method_thunk = (M)mono_method_get_unmanaged_thunk(p_mono_method->get_mono_ptr());
}
GDMonoMethodThunkR() :
mono_method_thunk(NULL) {
}
explicit GDMonoMethodThunkR(GDMonoMethod *p_mono_method) {
#ifdef DEBUG_ENABLED
CRASH_COND(p_mono_method == NULL);
#endif
mono_method_thunk = (M)mono_method_get_unmanaged_thunk(p_mono_method->get_mono_ptr());
}
};
#else
template <unsigned int ThunkParamCount, class P1, class... ParamTypes>
struct VariadicInvokeMonoMethodImpl {
static void invoke(GDMonoMethod *p_mono_method, P1 p_arg1, ParamTypes... p_args, MonoException **r_exc) {
if (p_mono_method->is_static()) {
void *args[ThunkParamCount] = { p_arg1, p_args... };
p_mono_method->invoke_raw(NULL, args, r_exc);
} else {
void *args[ThunkParamCount] = { p_args... };
p_mono_method->invoke_raw((MonoObject *)p_arg1, args, r_exc);
}
}
};
template <unsigned int ThunkParamCount, class... ParamTypes>
struct VariadicInvokeMonoMethod {
static void invoke(GDMonoMethod *p_mono_method, ParamTypes... p_args, MonoException **r_exc) {
VariadicInvokeMonoMethodImpl<ThunkParamCount, ParamTypes...>::invoke(p_mono_method, p_args..., r_exc);
}
};
template <>
struct VariadicInvokeMonoMethod<0> {
static void invoke(GDMonoMethod *p_mono_method, MonoException **r_exc) {
#ifdef DEBUG_ENABLED
CRASH_COND(!p_mono_method->is_static());
#endif
p_mono_method->invoke_raw(NULL, NULL, r_exc);
}
};
template <class P1>
struct VariadicInvokeMonoMethod<1, P1> {
static void invoke(GDMonoMethod *p_mono_method, P1 p_arg1, MonoException **r_exc) {
if (p_mono_method->is_static()) {
void *args[1] = { p_arg1 };
p_mono_method->invoke_raw(NULL, args, r_exc);
} else {
p_mono_method->invoke_raw((MonoObject *)p_arg1, NULL, r_exc);
}
}
};
template <class R>
R unbox_if_needed(MonoObject *p_val, const ManagedType &, typename std::enable_if<!std::is_pointer<R>::value>::type * = 0) {
return GDMonoMarshal::unbox<R>(p_val);
}
template <class R>
R unbox_if_needed(MonoObject *p_val, const ManagedType &p_type, typename std::enable_if<std::is_pointer<R>::value>::type * = 0) {
if (mono_class_is_valuetype(p_type.type_class->get_mono_ptr())) {
return GDMonoMarshal::unbox<R>(p_val);
} else {
// If it's not a value type, we assume 'R' is a pointer to 'MonoObject' or a compatible type, like 'MonoException'.
return (R)p_val;
}
}
template <unsigned int ThunkParamCount, class R, class P1, class... ParamTypes>
struct VariadicInvokeMonoMethodRImpl {
static R invoke(GDMonoMethod *p_mono_method, P1 p_arg1, ParamTypes... p_args, MonoException **r_exc) {
if (p_mono_method->is_static()) {
void *args[ThunkParamCount] = { p_arg1, p_args... };
MonoObject *r = p_mono_method->invoke_raw(NULL, args, r_exc);
return unbox_if_needed<R>(r, p_mono_method->get_return_type());
} else {
void *args[ThunkParamCount] = { p_args... };
MonoObject *r = p_mono_method->invoke_raw((MonoObject *)p_arg1, args, r_exc);
return unbox_if_needed<R>(r, p_mono_method->get_return_type());
}
}
};
template <unsigned int ThunkParamCount, class R, class... ParamTypes>
struct VariadicInvokeMonoMethodR {
static R invoke(GDMonoMethod *p_mono_method, ParamTypes... p_args, MonoException **r_exc) {
return VariadicInvokeMonoMethodRImpl<ThunkParamCount, R, ParamTypes...>::invoke(p_mono_method, p_args..., r_exc);
}
};
template <class R>
struct VariadicInvokeMonoMethodR<0, R> {
static R invoke(GDMonoMethod *p_mono_method, MonoException **r_exc) {
#ifdef DEBUG_ENABLED
CRASH_COND(!p_mono_method->is_static());
#endif
MonoObject *r = p_mono_method->invoke_raw(NULL, NULL, r_exc);
return unbox_if_needed<R>(r, p_mono_method->get_return_type());
}
};
template <class R, class P1>
struct VariadicInvokeMonoMethodR<1, R, P1> {
static R invoke(GDMonoMethod *p_mono_method, P1 p_arg1, MonoException **r_exc) {
if (p_mono_method->is_static()) {
void *args[1] = { p_arg1 };
MonoObject *r = p_mono_method->invoke_raw(NULL, args, r_exc);
return unbox_if_needed<R>(r, p_mono_method->get_return_type());
} else {
MonoObject *r = p_mono_method->invoke_raw((MonoObject *)p_arg1, NULL, r_exc);
return unbox_if_needed<R>(r, p_mono_method->get_return_type());
}
}
};
template <class... ParamTypes>
struct GDMonoMethodThunk {
GDMonoMethod *mono_method;
public:
_FORCE_INLINE_ void invoke(ParamTypes... p_args, MonoException **r_exc) {
VariadicInvokeMonoMethod<sizeof...(ParamTypes), ParamTypes...>::invoke(mono_method, p_args..., r_exc);
}
_FORCE_INLINE_ bool is_null() {
return mono_method == NULL;
}
_FORCE_INLINE_ void nullify() {
mono_method = NULL;
}
_FORCE_INLINE_ void set_from_method(GDMonoMethod *p_mono_method) {
#ifdef DEBUG_ENABLED
CRASH_COND(p_mono_method == NULL);
CRASH_COND(p_mono_method->get_return_type().type_encoding != MONO_TYPE_VOID);
if (p_mono_method->is_static()) {
CRASH_COND(p_mono_method->get_parameters_count() != sizeof...(ParamTypes));
} else {
CRASH_COND(p_mono_method->get_parameters_count() != (sizeof...(ParamTypes) - 1));
}
#endif
mono_method = p_mono_method;
}
GDMonoMethodThunk() :
mono_method(NULL) {
}
explicit GDMonoMethodThunk(GDMonoMethod *p_mono_method) {
set_from_method(p_mono_method);
}
};
template <class R, class... ParamTypes>
struct GDMonoMethodThunkR {
GDMonoMethod *mono_method;
public:
_FORCE_INLINE_ R invoke(ParamTypes... p_args, MonoException **r_exc) {
return VariadicInvokeMonoMethodR<sizeof...(ParamTypes), R, ParamTypes...>::invoke(mono_method, p_args..., r_exc);
}
_FORCE_INLINE_ bool is_null() {
return mono_method == NULL;
}
_FORCE_INLINE_ void nullify() {
mono_method = NULL;
}
_FORCE_INLINE_ void set_from_method(GDMonoMethod *p_mono_method) {
#ifdef DEBUG_ENABLED
CRASH_COND(p_mono_method == NULL);
CRASH_COND(p_mono_method->get_return_type().type_encoding == MONO_TYPE_VOID);
if (p_mono_method->is_static()) {
CRASH_COND(p_mono_method->get_parameters_count() != sizeof...(ParamTypes));
} else {
CRASH_COND(p_mono_method->get_parameters_count() != (sizeof...(ParamTypes) - 1));
}
#endif
mono_method = p_mono_method;
}
GDMonoMethodThunkR() :
mono_method(NULL) {
}
explicit GDMonoMethodThunkR(GDMonoMethod *p_mono_method) {
set_from_method(p_mono_method);
}
};
#endif
#endif // GD_MONO_METHOD_THUNK_H
|