103 lines
2.7 KiB
C++
103 lines
2.7 KiB
C++
// Copyright (c) Wojciech Figat. All rights reserved.
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#pragma once
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#include "Engine/Core/Log.h"
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#include "Engine/Debug/DebugLog.h"
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#include "Engine/Scripting/ScriptingType.h"
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#include "Engine/Scripting/Types.h"
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#if defined(__clang__)
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// Helper utility to override vtable entry with automatic restore
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// See BindingsGenerator.Cpp.cs that generates virtuall method wrappers for scripting to properly call overriden base method
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struct FLAXENGINE_API VTableFunctionInjector
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{
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void** VTableAddr;
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void* OriginalValue;
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VTableFunctionInjector(void* object, void* originalFunc, void* func)
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{
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void** vtable = *(void***)object;
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const int32 vtableIndex = GetVTableIndex(vtable, 200, originalFunc);
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VTableAddr = vtable + vtableIndex;
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OriginalValue = *VTableAddr;
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*VTableAddr = func;
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}
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~VTableFunctionInjector()
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{
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*VTableAddr = OriginalValue;
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}
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};
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#elif defined(_MSC_VER)
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#define MSVC_FUNC_EXPORT(name) __pragma(comment(linker, "/EXPORT:" #name "=" __FUNCDNAME__))
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#endif
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#if USE_CSHARP
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#if USE_NETCORE
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#define ADD_INTERNAL_CALL(fullName, method)
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#define DEFINE_INTERNAL_CALL(returnType) extern "C" DLLEXPORT returnType
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#else
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extern "C" FLAXENGINE_API void mono_add_internal_call(const char* name, const void* method);
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#define ADD_INTERNAL_CALL(fullName, method) mono_add_internal_call(fullName, (const void*)method)
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#define DEFINE_INTERNAL_CALL(returnType) static returnType
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#endif
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#if BUILD_RELEASE && 0
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// Using invalid handle will crash engine in Release build
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#define INTERNAL_CALL_CHECK(obj)
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#define INTERNAL_CALL_CHECK_EXP(expression)
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#define INTERNAL_CALL_CHECK_RETURN(obj, defaultValue)
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#define INTERNAL_CALL_CHECK_EXP_RETURN(expression, defaultValue)
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#else
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// Use additional checks in debug/development builds
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#define INTERNAL_CALL_CHECK(obj) \
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if (obj == nullptr) \
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{ \
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DebugLog::ThrowNullReference(); \
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return; \
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}
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#define INTERNAL_CALL_CHECK_EXP(expression) \
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if (expression) \
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{ \
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DebugLog::ThrowNullReference(); \
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return; \
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}
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#define INTERNAL_CALL_CHECK_RETURN(obj, defaultValue) \
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if (obj == nullptr) \
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{ \
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DebugLog::ThrowNullReference(); \
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return defaultValue; \
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}
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#define INTERNAL_CALL_CHECK_EXP_RETURN(expression, defaultValue) \
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if (expression) \
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{ \
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DebugLog::ThrowNullReference(); \
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return defaultValue; \
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}
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#endif
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#else
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#define ADD_INTERNAL_CALL(fullName, method)
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#define DEFINE_INTERNAL_CALL(returnType) static returnType
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#define INTERNAL_CALL_CHECK(obj)
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#define INTERNAL_CALL_CHECK_EXP(expression)
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#define INTERNAL_CALL_CHECK_RETURN(obj, defaultValue)
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#define INTERNAL_CALL_CHECK_EXP_RETURN(expression, defaultValue)
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#endif
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template<typename T>
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T& InternalGetReference(T* obj)
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{
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if (!obj)
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DebugLog::ThrowNullReference();
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return *obj;
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}
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