61 lines
1.9 KiB
C++
61 lines
1.9 KiB
C++
#pragma once
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#include <string>
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#include <typeinfo>
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#include "exports.h"
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namespace ShadowEngine {
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/**
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* \brief This is the base class for every class in the Engine that uses runtime reflection.
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* Currently it provides a runtime TypeID and TypeName witch can be accesed as static and as class memebers.
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* The ID is a int type number witch is generated incramently, on the first call to get a type.
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* Each class that inherits from this or it's parent inheris form it must implement the
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SHObject::GetType and SHObject::GetTypeId methodes and make it's own static methodes.
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To make it easier a standard implementation of these can be used with the SHObject_Base() macro
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witch implements all of these functions. It uses the typeid().name of the class.
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*/
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class SHObject
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{
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public:
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/**
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* \brief Generates a new UID for each call
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* \return the next Unique ID that was just generated
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*/
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API static uint64_t GenerateId() noexcept;
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public:
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/**
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* \brief Returns the top level class type name of the object
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* \return The class Class name as a string
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*/
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virtual const std::string& GetType() const = 0;
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/**
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* \brief Gets the top level type ID
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* \return UID of the class
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*/
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virtual const uint64_t GetTypeId() const = 0;
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virtual ~SHObject() = default;
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};
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/**
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* \brief Macro to make the override functions of SHObject. This should be added in each derived class
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* \param type The type of the class
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*/
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#define SHObject_Base(type) \
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public: \
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static const std::string& Type(); \
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static uint64_t TypeId(); \
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const std::string& GetType() const override { return Type(); } \
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const uint64_t GetTypeId() const override { return type::TypeId(); } \
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private:
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#define SHObject_Base_Impl(type) \
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const std::string& type::Type() { static const std::string t = typeid(type).name(); return t; } \
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uint64_t type::TypeId() { static const uint64_t id = GenerateId(); return id; }
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} |