62 lines · cpp
1//===- FileUtilities.cpp - utilities for working with files ---------------===//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// Definitions of common utilities for working with files.10//11//===----------------------------------------------------------------------===//12 13#include "mlir/Support/FileUtilities.h"14#include "mlir/Support/LLVM.h"15#include "llvm/Support/Alignment.h"16#include "llvm/Support/FileUtilities.h"17#include "llvm/Support/MemoryBuffer.h"18#include "llvm/Support/ToolOutputFile.h"19 20using namespace mlir;21 22static std::unique_ptr<llvm::MemoryBuffer>23openInputFileImpl(StringRef inputFilename, std::string *errorMessage,24 std::optional<llvm::Align> alignment) {25 auto fileOrErr = llvm::MemoryBuffer::getFileOrSTDIN(26 inputFilename, /*IsText=*/false, /*RequiresNullTerminator=*/true,27 alignment);28 if (std::error_code error = fileOrErr.getError()) {29 if (errorMessage)30 *errorMessage = "cannot open input file '" + inputFilename.str() +31 "': " + error.message();32 return nullptr;33 }34 35 return std::move(*fileOrErr);36}37std::unique_ptr<llvm::MemoryBuffer>38mlir::openInputFile(StringRef inputFilename, std::string *errorMessage) {39 return openInputFileImpl(inputFilename, errorMessage,40 /*alignment=*/std::nullopt);41}42std::unique_ptr<llvm::MemoryBuffer>43mlir::openInputFile(llvm::StringRef inputFilename, llvm::Align alignment,44 std::string *errorMessage) {45 return openInputFileImpl(inputFilename, errorMessage, alignment);46}47 48std::unique_ptr<llvm::ToolOutputFile>49mlir::openOutputFile(StringRef outputFilename, std::string *errorMessage) {50 std::error_code error;51 auto result = std::make_unique<llvm::ToolOutputFile>(outputFilename, error,52 llvm::sys::fs::OF_None);53 if (error) {54 if (errorMessage)55 *errorMessage = "cannot open output file '" + outputFilename.str() +56 "': " + error.message();57 return nullptr;58 }59 60 return result;61}62