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1//===-- ErrorHandling.h - Error handler -------------------------*- C++ -*-===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef LLVM_TOOLS_LLVM_PROFGEN_ERRORHANDLING_H10#define LLVM_TOOLS_LLVM_PROFGEN_ERRORHANDLING_H11 12#include "llvm/ADT/Twine.h"13#include "llvm/Support/Errc.h"14#include "llvm/Support/Error.h"15#include "llvm/Support/ErrorOr.h"16#include "llvm/Support/WithColor.h"17#include <system_error>18 19namespace llvm {20 21[[noreturn]] inline void exitWithError(const Twine &Message,22 StringRef Whence = StringRef(),23 StringRef Hint = StringRef()) {24 WithColor::error(errs(), "llvm-profgen");25 if (!Whence.empty())26 errs() << Whence.str() << ": ";27 errs() << Message << "\n";28 if (!Hint.empty())29 WithColor::note() << Hint.str() << "\n";30 ::exit(EXIT_FAILURE);31}32 33[[noreturn]] inline void exitWithError(std::error_code EC,34 StringRef Whence = StringRef()) {35 exitWithError(EC.message(), Whence);36}37 38[[noreturn]] inline void exitWithError(Error E, StringRef Whence) {39 exitWithError(errorToErrorCode(std::move(E)), Whence);40}41 42template <typename T, typename... Ts>43T unwrapOrError(Expected<T> EO, Ts &&... Args) {44 if (EO)45 return std::move(*EO);46 exitWithError(EO.takeError(), std::forward<Ts>(Args)...);47}48 49inline void emitWarningSummary(uint64_t Num, uint64_t Total, StringRef Msg) {50 if (!Total || !Num)51 return;52 WithColor::warning() << format("%.2f", static_cast<double>(Num) * 100 / Total)53 << "%(" << Num << "/" << Total << ") " << Msg << "\n";54}55 56} // end namespace llvm57 58#endif59