34 lines
1.7 KiB
C
34 lines
1.7 KiB
C
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// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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// Simple RTTI implementation.
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// Note: The SimpleRTTI class hierarchy may be different than the actual class hierarchy.
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// Ex.: Some classes in the actual hierarchy can be hidden (do not use INSIGHTS_DECLARE_RTTI, so just inherits type info from parent class).
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// Macro to be used in declaration of the base class of the SimpleRTTI class hierarchy.
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#define INSIGHTS_DECLARE_RTTI_BASE(BaseClassName) \
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public: \
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static const FName& GetStaticTypeName() { return BaseClassName::TypeName; } \
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virtual const FName& GetTypeName() const { return BaseClassName::GetStaticTypeName(); } \
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virtual bool IsKindOf(const FName& InTypeName) const { return InTypeName == BaseClassName::GetStaticTypeName(); } \
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template<typename Type> bool Is() const { return IsKindOf(Type::GetStaticTypeName()); } \
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template<typename Type> const Type& As() const { return *static_cast<const Type*>(this); } \
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template<typename Type> Type& As() { return *static_cast<Type*>(this); } \
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private: \
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static const FName TypeName;
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// Macro to be used in declaration of a derived class in a SimpleRTTI hierarchy.
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#define INSIGHTS_DECLARE_RTTI(ClassName, BaseClassName) \
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public: \
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static const FName& GetStaticTypeName() { return ClassName::TypeName; } \
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virtual const FName& GetTypeName() const override { return ClassName::GetStaticTypeName(); } \
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virtual bool IsKindOf(const FName& InTypeName) const override { return InTypeName == ClassName::GetStaticTypeName() || BaseClassName::IsKindOf(InTypeName); } \
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private: \
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static const FName TypeName;
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// Macro to be used in implementation of a class in a SimpleRTTI hierarchy.
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#define INSIGHTS_IMPLEMENT_RTTI(ClassName) \
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const FName ClassName::TypeName = TEXT(#ClassName);
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