//===- llvm/Support/FileSystem/UniqueID.h - UniqueID for files --*- C++ -*-===// // // 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 // //===----------------------------------------------------------------------===// // // This file is cut out of llvm/Support/FileSystem.h to allow UniqueID to be // reused without bloating the includes. // //===----------------------------------------------------------------------===// #ifndef LLVM_SUPPORT_FILESYSTEM_UNIQUEID_H #define LLVM_SUPPORT_FILESYSTEM_UNIQUEID_H #include <cstdint> namespace llvm { namespace sys { namespace fs { class UniqueID { uint64_t Device; uint64_t File; public: UniqueID() = default; UniqueID(uint64_t Device, uint64_t File) : Device(Device), File(File) {} bool operator==(const UniqueID &Other) const { return Device == Other.Device && File == Other.File; } bool operator!=(const UniqueID &Other) const { return !(*this == Other); } bool operator<(const UniqueID &Other) const { /// Don't use std::tie since it bloats the compile time of this header. if (Device < Other.Device) return true; if (Other.Device < Device) return false; return File < Other.File; } uint64_t getDevice() const { return Device; } uint64_t getFile() const { return File; } }; } // end namespace fs } // end namespace sys } // end namespace llvm #endif // LLVM_SUPPORT_FILESYSTEM_UNIQUEID_H |