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58 lines
2.3 KiB
C++
58 lines
2.3 KiB
C++
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//===- RemarkUtilHelpers.cpp ----------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// Helpers for remark utilites
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//
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//===----------------------------------------------------------------------===//
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#include "RemarkUtilHelpers.h"
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namespace llvm {
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namespace remarks {
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/// \returns A MemoryBuffer for the input file on success, and an Error
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/// otherwise.
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Expected<std::unique_ptr<MemoryBuffer>>
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getInputMemoryBuffer(StringRef InputFileName) {
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auto MaybeBuf = MemoryBuffer::getFileOrSTDIN(InputFileName);
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if (auto ErrorCode = MaybeBuf.getError())
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return createStringError(ErrorCode,
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Twine("Cannot open file '" + InputFileName +
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"': " + ErrorCode.message()));
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return std::move(*MaybeBuf);
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}
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/// \returns A ToolOutputFile which can be used for outputting the results of
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/// some tool mode.
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/// \p OutputFileName is the desired destination.
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/// \p Flags controls whether or not the file is opened for writing in text
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/// mode, as a binary, etc. See sys::fs::OpenFlags for more detail.
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Expected<std::unique_ptr<ToolOutputFile>>
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getOutputFileWithFlags(StringRef OutputFileName, sys::fs::OpenFlags Flags) {
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if (OutputFileName == "")
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OutputFileName = "-";
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std::error_code ErrorCode;
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auto OF = std::make_unique<ToolOutputFile>(OutputFileName, ErrorCode, Flags);
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if (ErrorCode)
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return errorCodeToError(ErrorCode);
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return std::move(OF);
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}
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/// \returns A ToolOutputFile which can be used for writing remarks on success,
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/// and an Error otherwise.
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/// \p OutputFileName is the desired destination.
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/// \p OutputFormat
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Expected<std::unique_ptr<ToolOutputFile>>
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getOutputFileForRemarks(StringRef OutputFileName, Format OutputFormat) {
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assert((OutputFormat == Format::YAML || OutputFormat == Format::Bitstream) &&
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"Expected one of YAML or Bitstream!");
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return getOutputFileWithFlags(OutputFileName, OutputFormat == Format::YAML
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? sys::fs::OF_TextWithCRLF
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: sys::fs::OF_None);
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}
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} // namespace remarks
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} // namespace llvm
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