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//===- FileUtilities.cpp - utilities for working with files ---------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// Definitions of common utilities for working with files.
//
//===----------------------------------------------------------------------===//
#include "mlir/Support/FileUtilities.h"
#include "mlir/Support/LLVM.h"
#include "llvm/Support/Alignment.h"
#include "llvm/Support/FileUtilities.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/ToolOutputFile.h"
using namespace mlir;
static std::unique_ptr<llvm::MemoryBuffer>
openInputFileImpl(StringRef inputFilename, std::string *errorMessage,
std::optional<llvm::Align> alignment) {
auto fileOrErr = llvm::MemoryBuffer::getFileOrSTDIN(
inputFilename, /*IsText=*/false, /*RequiresNullTerminator=*/true,
alignment);
if (std::error_code error = fileOrErr.getError()) {
if (errorMessage)
*errorMessage = "cannot open input file '" + inputFilename.str() +
"': " + error.message();
return nullptr;
}
return std::move(*fileOrErr);
}
std::unique_ptr<llvm::MemoryBuffer>
mlir::openInputFile(StringRef inputFilename, std::string *errorMessage) {
return openInputFileImpl(inputFilename, errorMessage,
/*alignment=*/std::nullopt);
}
std::unique_ptr<llvm::MemoryBuffer>
mlir::openInputFile(llvm::StringRef inputFilename, llvm::Align alignment,
std::string *errorMessage) {
return openInputFileImpl(inputFilename, errorMessage, alignment);
}
std::unique_ptr<llvm::ToolOutputFile>
mlir::openOutputFile(StringRef outputFilename, std::string *errorMessage) {
std::error_code error;
auto result = std::make_unique<llvm::ToolOutputFile>(outputFilename, error,
llvm::sys::fs::OF_None);
if (error) {
if (errorMessage)
*errorMessage = "cannot open output file '" + outputFilename.str() +
"': " + error.message();
return nullptr;
}
return result;
}
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