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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef SUPPORT_TYPE_ID_H
#define SUPPORT_TYPE_ID_H
#include <string>
#include <cassert>
#include "test_macros.h"
#if TEST_STD_VER < 11
#error This header requires C++11 or greater
#endif
// TypeID - Represent a unique identifier for a type. TypeID allows equality
// comparisons between different types.
struct TypeID {
friend bool operator==(TypeID const& LHS, TypeID const& RHS)
{return LHS.m_id == RHS.m_id; }
friend bool operator!=(TypeID const& LHS, TypeID const& RHS)
{return LHS.m_id != RHS.m_id; }
std::string name() const {
return m_id;
}
private:
explicit constexpr TypeID(const char* xid) : m_id(xid) {}
TypeID(const TypeID&) = delete;
TypeID& operator=(TypeID const&) = delete;
const char* const m_id;
template <class T> friend TypeID const& makeTypeIDImp();
};
// makeTypeID - Return the TypeID for the specified type 'T'.
template <class T>
inline TypeID const& makeTypeIDImp() {
#ifdef _MSC_VER
static const TypeID id(__FUNCSIG__);
#else
static const TypeID id(__PRETTY_FUNCTION__);
#endif // _MSC_VER
return id;
}
template <class T>
struct TypeWrapper {};
template <class T>
inline TypeID const& makeTypeID() {
return makeTypeIDImp<TypeWrapper<T>>();
}
template <class ...Args>
struct ArgumentListID {};
// makeArgumentID - Create and return a unique identifier for a given set
// of arguments.
template <class ...Args>
inline TypeID const& makeArgumentID() {
return makeTypeIDImp<ArgumentListID<Args...>>();
}
#endif // SUPPORT_TYPE_ID_H