| 1 | //===- FileUtilities.cpp - utilities for working with files ---------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | // |
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| 9 | // Definitions of common utilities for working with files. |
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| 10 | // |
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| 11 | //===----------------------------------------------------------------------===// |
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| 12 | |
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| 13 | #include "mlir/Support/FileUtilities.h" |
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| 14 | #include "mlir/Support/LLVM.h" |
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| 15 | #include "llvm/Support/Alignment.h" |
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| 16 | #include "llvm/Support/FileUtilities.h" |
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| 17 | #include "llvm/Support/MemoryBuffer.h" |
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| 18 | #include "llvm/Support/ToolOutputFile.h" |
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| 19 | |
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| 20 | using namespace mlir; |
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| 21 | |
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| 22 | static std::unique_ptr<llvm::MemoryBuffer> |
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| 23 | openInputFileImpl(StringRef inputFilename, std::string *errorMessage, |
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| 24 | std::optional<llvm::Align> alignment) { |
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| 25 | auto fileOrErr = llvm::MemoryBuffer::getFileOrSTDIN( |
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| 26 | Filename: inputFilename, /*IsText=*/false, /*RequiresNullTerminator=*/true, |
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| 27 | Alignment: alignment); |
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| 28 | if (std::error_code error = fileOrErr.getError()) { |
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| 29 | if (errorMessage) |
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| 30 | *errorMessage = "cannot open input file '" + inputFilename.str() + |
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| 31 | "': " + error.message(); |
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| 32 | return nullptr; |
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| 33 | } |
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| 34 | |
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| 35 | return std::move(*fileOrErr); |
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| 36 | } |
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| 37 | std::unique_ptr<llvm::MemoryBuffer> |
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| 38 | mlir::openInputFile(StringRef inputFilename, std::string *errorMessage) { |
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| 39 | return openInputFileImpl(inputFilename, errorMessage, |
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| 40 | /*alignment=*/std::nullopt); |
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| 41 | } |
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| 42 | std::unique_ptr<llvm::MemoryBuffer> |
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| 43 | mlir::openInputFile(llvm::StringRef inputFilename, llvm::Align alignment, |
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| 44 | std::string *errorMessage) { |
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| 45 | return openInputFileImpl(inputFilename, errorMessage, alignment); |
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| 46 | } |
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| 47 | |
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| 48 | std::unique_ptr<llvm::ToolOutputFile> |
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| 49 | mlir::openOutputFile(StringRef outputFilename, std::string *errorMessage) { |
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| 50 | std::error_code error; |
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| 51 | auto result = std::make_unique<llvm::ToolOutputFile>(args&: outputFilename, args&: error, |
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| 52 | args: llvm::sys::fs::OF_None); |
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| 53 | if (error) { |
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| 54 | if (errorMessage) |
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| 55 | *errorMessage = "cannot open output file '" + outputFilename.str() + |
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| 56 | "': " + error.message(); |
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| 57 | return nullptr; |
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| 58 | } |
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| 59 | |
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| 60 | return result; |
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| 61 | } |
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| 62 | |
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