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329 lines
11 KiB
C
329 lines
11 KiB
C
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/**************************************************************************/
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/* gd_mono_method_thunk.h */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#ifndef GD_MONO_METHOD_THUNK_H
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#define GD_MONO_METHOD_THUNK_H
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#include <type_traits>
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#include "gd_mono_class.h"
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#include "gd_mono_header.h"
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#include "gd_mono_marshal.h"
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#include "gd_mono_method.h"
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#include "gd_mono_utils.h"
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#if !defined(JAVASCRIPT_ENABLED) && !defined(IPHONE_ENABLED)
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#define HAVE_METHOD_THUNKS
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#endif
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#ifdef HAVE_METHOD_THUNKS
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template <class... ParamTypes>
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struct GDMonoMethodThunk {
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typedef void(GD_MONO_STDCALL *M)(ParamTypes... p_args, MonoException **);
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M mono_method_thunk;
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public:
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_FORCE_INLINE_ void invoke(ParamTypes... p_args, MonoException **r_exc) {
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GD_MONO_BEGIN_RUNTIME_INVOKE;
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mono_method_thunk(p_args..., r_exc);
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GD_MONO_END_RUNTIME_INVOKE;
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}
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_FORCE_INLINE_ bool is_null() {
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return mono_method_thunk == NULL;
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}
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_FORCE_INLINE_ void nullify() {
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mono_method_thunk = NULL;
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}
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_FORCE_INLINE_ void set_from_method(GDMonoMethod *p_mono_method) {
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#ifdef DEBUG_ENABLED
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CRASH_COND(p_mono_method == NULL);
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CRASH_COND(p_mono_method->get_return_type().type_encoding != MONO_TYPE_VOID);
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if (p_mono_method->is_static()) {
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CRASH_COND(p_mono_method->get_parameters_count() != sizeof...(ParamTypes));
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} else {
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CRASH_COND(p_mono_method->get_parameters_count() != (sizeof...(ParamTypes) - 1));
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}
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#endif
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mono_method_thunk = (M)mono_method_get_unmanaged_thunk(p_mono_method->get_mono_ptr());
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}
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GDMonoMethodThunk() :
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mono_method_thunk(NULL) {
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}
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explicit GDMonoMethodThunk(GDMonoMethod *p_mono_method) {
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set_from_method(p_mono_method);
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}
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};
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template <class R, class... ParamTypes>
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struct GDMonoMethodThunkR {
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typedef R(GD_MONO_STDCALL *M)(ParamTypes... p_args, MonoException **);
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M mono_method_thunk;
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public:
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_FORCE_INLINE_ R invoke(ParamTypes... p_args, MonoException **r_exc) {
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GD_MONO_BEGIN_RUNTIME_INVOKE;
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R r = mono_method_thunk(p_args..., r_exc);
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GD_MONO_END_RUNTIME_INVOKE;
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return r;
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}
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_FORCE_INLINE_ bool is_null() {
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return mono_method_thunk == NULL;
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}
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_FORCE_INLINE_ void nullify() {
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mono_method_thunk = NULL;
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}
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_FORCE_INLINE_ void set_from_method(GDMonoMethod *p_mono_method) {
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#ifdef DEBUG_ENABLED
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CRASH_COND(p_mono_method == NULL);
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CRASH_COND(p_mono_method->get_return_type().type_encoding == MONO_TYPE_VOID);
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if (p_mono_method->is_static()) {
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CRASH_COND(p_mono_method->get_parameters_count() != sizeof...(ParamTypes));
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} else {
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CRASH_COND(p_mono_method->get_parameters_count() != (sizeof...(ParamTypes) - 1));
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}
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#endif
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mono_method_thunk = (M)mono_method_get_unmanaged_thunk(p_mono_method->get_mono_ptr());
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}
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GDMonoMethodThunkR() :
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mono_method_thunk(NULL) {
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}
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explicit GDMonoMethodThunkR(GDMonoMethod *p_mono_method) {
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#ifdef DEBUG_ENABLED
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CRASH_COND(p_mono_method == NULL);
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#endif
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mono_method_thunk = (M)mono_method_get_unmanaged_thunk(p_mono_method->get_mono_ptr());
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}
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};
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#else
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template <unsigned int ThunkParamCount, class P1, class... ParamTypes>
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struct VariadicInvokeMonoMethodImpl {
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static void invoke(GDMonoMethod *p_mono_method, P1 p_arg1, ParamTypes... p_args, MonoException **r_exc) {
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if (p_mono_method->is_static()) {
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void *args[ThunkParamCount] = { p_arg1, p_args... };
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p_mono_method->invoke_raw(NULL, args, r_exc);
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} else {
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void *args[ThunkParamCount] = { p_args... };
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p_mono_method->invoke_raw((MonoObject *)p_arg1, args, r_exc);
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}
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}
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};
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template <unsigned int ThunkParamCount, class... ParamTypes>
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struct VariadicInvokeMonoMethod {
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static void invoke(GDMonoMethod *p_mono_method, ParamTypes... p_args, MonoException **r_exc) {
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VariadicInvokeMonoMethodImpl<ThunkParamCount, ParamTypes...>::invoke(p_mono_method, p_args..., r_exc);
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}
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};
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template <>
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struct VariadicInvokeMonoMethod<0> {
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static void invoke(GDMonoMethod *p_mono_method, MonoException **r_exc) {
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#ifdef DEBUG_ENABLED
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CRASH_COND(!p_mono_method->is_static());
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#endif
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p_mono_method->invoke_raw(NULL, NULL, r_exc);
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}
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};
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template <class P1>
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struct VariadicInvokeMonoMethod<1, P1> {
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static void invoke(GDMonoMethod *p_mono_method, P1 p_arg1, MonoException **r_exc) {
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if (p_mono_method->is_static()) {
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void *args[1] = { p_arg1 };
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p_mono_method->invoke_raw(NULL, args, r_exc);
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} else {
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p_mono_method->invoke_raw((MonoObject *)p_arg1, NULL, r_exc);
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}
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}
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};
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template <class R>
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R unbox_if_needed(MonoObject *p_val, const ManagedType &, typename std::enable_if<!std::is_pointer<R>::value>::type * = 0) {
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return GDMonoMarshal::unbox<R>(p_val);
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}
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template <class R>
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R unbox_if_needed(MonoObject *p_val, const ManagedType &p_type, typename std::enable_if<std::is_pointer<R>::value>::type * = 0) {
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if (mono_class_is_valuetype(p_type.type_class->get_mono_ptr())) {
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return GDMonoMarshal::unbox<R>(p_val);
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} else {
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// If it's not a value type, we assume 'R' is a pointer to 'MonoObject' or a compatible type, like 'MonoException'.
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return (R)p_val;
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}
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}
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template <unsigned int ThunkParamCount, class R, class P1, class... ParamTypes>
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struct VariadicInvokeMonoMethodRImpl {
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static R invoke(GDMonoMethod *p_mono_method, P1 p_arg1, ParamTypes... p_args, MonoException **r_exc) {
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if (p_mono_method->is_static()) {
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void *args[ThunkParamCount] = { p_arg1, p_args... };
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MonoObject *r = p_mono_method->invoke_raw(NULL, args, r_exc);
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return unbox_if_needed<R>(r, p_mono_method->get_return_type());
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} else {
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void *args[ThunkParamCount] = { p_args... };
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MonoObject *r = p_mono_method->invoke_raw((MonoObject *)p_arg1, args, r_exc);
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return unbox_if_needed<R>(r, p_mono_method->get_return_type());
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}
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}
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};
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template <unsigned int ThunkParamCount, class R, class... ParamTypes>
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struct VariadicInvokeMonoMethodR {
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static R invoke(GDMonoMethod *p_mono_method, ParamTypes... p_args, MonoException **r_exc) {
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return VariadicInvokeMonoMethodRImpl<ThunkParamCount, R, ParamTypes...>::invoke(p_mono_method, p_args..., r_exc);
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}
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};
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template <class R>
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struct VariadicInvokeMonoMethodR<0, R> {
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static R invoke(GDMonoMethod *p_mono_method, MonoException **r_exc) {
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#ifdef DEBUG_ENABLED
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CRASH_COND(!p_mono_method->is_static());
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#endif
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MonoObject *r = p_mono_method->invoke_raw(NULL, NULL, r_exc);
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return unbox_if_needed<R>(r, p_mono_method->get_return_type());
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}
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};
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template <class R, class P1>
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struct VariadicInvokeMonoMethodR<1, R, P1> {
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static R invoke(GDMonoMethod *p_mono_method, P1 p_arg1, MonoException **r_exc) {
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if (p_mono_method->is_static()) {
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void *args[1] = { p_arg1 };
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MonoObject *r = p_mono_method->invoke_raw(NULL, args, r_exc);
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return unbox_if_needed<R>(r, p_mono_method->get_return_type());
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} else {
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MonoObject *r = p_mono_method->invoke_raw((MonoObject *)p_arg1, NULL, r_exc);
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return unbox_if_needed<R>(r, p_mono_method->get_return_type());
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}
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}
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};
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template <class... ParamTypes>
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struct GDMonoMethodThunk {
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GDMonoMethod *mono_method;
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public:
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_FORCE_INLINE_ void invoke(ParamTypes... p_args, MonoException **r_exc) {
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VariadicInvokeMonoMethod<sizeof...(ParamTypes), ParamTypes...>::invoke(mono_method, p_args..., r_exc);
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}
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_FORCE_INLINE_ bool is_null() {
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return mono_method == NULL;
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}
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_FORCE_INLINE_ void nullify() {
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mono_method = NULL;
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}
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_FORCE_INLINE_ void set_from_method(GDMonoMethod *p_mono_method) {
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#ifdef DEBUG_ENABLED
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CRASH_COND(p_mono_method == NULL);
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CRASH_COND(p_mono_method->get_return_type().type_encoding != MONO_TYPE_VOID);
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if (p_mono_method->is_static()) {
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CRASH_COND(p_mono_method->get_parameters_count() != sizeof...(ParamTypes));
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} else {
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CRASH_COND(p_mono_method->get_parameters_count() != (sizeof...(ParamTypes) - 1));
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}
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#endif
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mono_method = p_mono_method;
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}
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GDMonoMethodThunk() :
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mono_method(NULL) {
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}
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explicit GDMonoMethodThunk(GDMonoMethod *p_mono_method) {
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set_from_method(p_mono_method);
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}
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};
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template <class R, class... ParamTypes>
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struct GDMonoMethodThunkR {
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GDMonoMethod *mono_method;
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public:
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_FORCE_INLINE_ R invoke(ParamTypes... p_args, MonoException **r_exc) {
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return VariadicInvokeMonoMethodR<sizeof...(ParamTypes), R, ParamTypes...>::invoke(mono_method, p_args..., r_exc);
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}
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_FORCE_INLINE_ bool is_null() {
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return mono_method == NULL;
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}
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_FORCE_INLINE_ void nullify() {
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mono_method = NULL;
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}
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_FORCE_INLINE_ void set_from_method(GDMonoMethod *p_mono_method) {
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#ifdef DEBUG_ENABLED
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CRASH_COND(p_mono_method == NULL);
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CRASH_COND(p_mono_method->get_return_type().type_encoding == MONO_TYPE_VOID);
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if (p_mono_method->is_static()) {
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CRASH_COND(p_mono_method->get_parameters_count() != sizeof...(ParamTypes));
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} else {
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CRASH_COND(p_mono_method->get_parameters_count() != (sizeof...(ParamTypes) - 1));
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}
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#endif
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mono_method = p_mono_method;
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}
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GDMonoMethodThunkR() :
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mono_method(NULL) {
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}
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explicit GDMonoMethodThunkR(GDMonoMethod *p_mono_method) {
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set_from_method(p_mono_method);
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}
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};
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#endif
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#endif // GD_MONO_METHOD_THUNK_H
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