diff options
author | orivej <[email protected]> | 2022-02-10 16:44:49 +0300 |
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committer | Daniil Cherednik <[email protected]> | 2022-02-10 16:44:49 +0300 |
commit | 718c552901d703c502ccbefdfc3c9028d608b947 (patch) | |
tree | 46534a98bbefcd7b1f3faa5b52c138ab27db75b7 /contrib/libs/llvm12/lib/Support/BinaryStreamRef.cpp | |
parent | e9656aae26e0358d5378e5b63dcac5c8dbe0e4d0 (diff) |
Restoring authorship annotation for <[email protected]>. Commit 1 of 2.
Diffstat (limited to 'contrib/libs/llvm12/lib/Support/BinaryStreamRef.cpp')
-rw-r--r-- | contrib/libs/llvm12/lib/Support/BinaryStreamRef.cpp | 260 |
1 files changed, 130 insertions, 130 deletions
diff --git a/contrib/libs/llvm12/lib/Support/BinaryStreamRef.cpp b/contrib/libs/llvm12/lib/Support/BinaryStreamRef.cpp index 6bcc504ffad..523f55c05a6 100644 --- a/contrib/libs/llvm12/lib/Support/BinaryStreamRef.cpp +++ b/contrib/libs/llvm12/lib/Support/BinaryStreamRef.cpp @@ -1,130 +1,130 @@ -//===- BinaryStreamRef.cpp - ----------------------------------------------===// -// -// 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 -// -//===----------------------------------------------------------------------===// - -#include "llvm/Support/BinaryStreamRef.h" -#include "llvm/Support/BinaryByteStream.h" - -using namespace llvm; -using namespace llvm::support; - -namespace { - -class ArrayRefImpl : public BinaryStream { -public: - ArrayRefImpl(ArrayRef<uint8_t> Data, endianness Endian) : BBS(Data, Endian) {} - - llvm::support::endianness getEndian() const override { - return BBS.getEndian(); - } - Error readBytes(uint32_t Offset, uint32_t Size, - ArrayRef<uint8_t> &Buffer) override { - return BBS.readBytes(Offset, Size, Buffer); - } - Error readLongestContiguousChunk(uint32_t Offset, - ArrayRef<uint8_t> &Buffer) override { - return BBS.readLongestContiguousChunk(Offset, Buffer); - } - uint32_t getLength() override { return BBS.getLength(); } - -private: - BinaryByteStream BBS; -}; - -class MutableArrayRefImpl : public WritableBinaryStream { -public: - MutableArrayRefImpl(MutableArrayRef<uint8_t> Data, endianness Endian) - : BBS(Data, Endian) {} - - // Inherited via WritableBinaryStream - llvm::support::endianness getEndian() const override { - return BBS.getEndian(); - } - Error readBytes(uint32_t Offset, uint32_t Size, - ArrayRef<uint8_t> &Buffer) override { - return BBS.readBytes(Offset, Size, Buffer); - } - Error readLongestContiguousChunk(uint32_t Offset, - ArrayRef<uint8_t> &Buffer) override { - return BBS.readLongestContiguousChunk(Offset, Buffer); - } - uint32_t getLength() override { return BBS.getLength(); } - - Error writeBytes(uint32_t Offset, ArrayRef<uint8_t> Data) override { - return BBS.writeBytes(Offset, Data); - } - Error commit() override { return BBS.commit(); } - -private: - MutableBinaryByteStream BBS; -}; -} - -BinaryStreamRef::BinaryStreamRef(BinaryStream &Stream) - : BinaryStreamRefBase(Stream) {} -BinaryStreamRef::BinaryStreamRef(BinaryStream &Stream, uint32_t Offset, - Optional<uint32_t> Length) - : BinaryStreamRefBase(Stream, Offset, Length) {} -BinaryStreamRef::BinaryStreamRef(ArrayRef<uint8_t> Data, endianness Endian) - : BinaryStreamRefBase(std::make_shared<ArrayRefImpl>(Data, Endian), 0, - Data.size()) {} -BinaryStreamRef::BinaryStreamRef(StringRef Data, endianness Endian) - : BinaryStreamRef(makeArrayRef(Data.bytes_begin(), Data.bytes_end()), - Endian) {} - -Error BinaryStreamRef::readBytes(uint32_t Offset, uint32_t Size, - ArrayRef<uint8_t> &Buffer) const { - if (auto EC = checkOffsetForRead(Offset, Size)) - return EC; - return BorrowedImpl->readBytes(ViewOffset + Offset, Size, Buffer); -} - -Error BinaryStreamRef::readLongestContiguousChunk( - uint32_t Offset, ArrayRef<uint8_t> &Buffer) const { - if (auto EC = checkOffsetForRead(Offset, 1)) - return EC; - - if (auto EC = - BorrowedImpl->readLongestContiguousChunk(ViewOffset + Offset, Buffer)) - return EC; - // This StreamRef might refer to a smaller window over a larger stream. In - // that case we will have read out more bytes than we should return, because - // we should not read past the end of the current view. - uint32_t MaxLength = getLength() - Offset; - if (Buffer.size() > MaxLength) - Buffer = Buffer.slice(0, MaxLength); - return Error::success(); -} - -WritableBinaryStreamRef::WritableBinaryStreamRef(WritableBinaryStream &Stream) - : BinaryStreamRefBase(Stream) {} - -WritableBinaryStreamRef::WritableBinaryStreamRef(WritableBinaryStream &Stream, - uint32_t Offset, - Optional<uint32_t> Length) - : BinaryStreamRefBase(Stream, Offset, Length) {} - -WritableBinaryStreamRef::WritableBinaryStreamRef(MutableArrayRef<uint8_t> Data, - endianness Endian) - : BinaryStreamRefBase(std::make_shared<MutableArrayRefImpl>(Data, Endian), - 0, Data.size()) {} - - -Error WritableBinaryStreamRef::writeBytes(uint32_t Offset, - ArrayRef<uint8_t> Data) const { - if (auto EC = checkOffsetForWrite(Offset, Data.size())) - return EC; - - return BorrowedImpl->writeBytes(ViewOffset + Offset, Data); -} - -WritableBinaryStreamRef::operator BinaryStreamRef() const { - return BinaryStreamRef(*BorrowedImpl, ViewOffset, Length); -} - -/// For buffered streams, commits changes to the backing store. -Error WritableBinaryStreamRef::commit() { return BorrowedImpl->commit(); } +//===- BinaryStreamRef.cpp - ----------------------------------------------===// +// +// 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 +// +//===----------------------------------------------------------------------===// + +#include "llvm/Support/BinaryStreamRef.h" +#include "llvm/Support/BinaryByteStream.h" + +using namespace llvm; +using namespace llvm::support; + +namespace { + +class ArrayRefImpl : public BinaryStream { +public: + ArrayRefImpl(ArrayRef<uint8_t> Data, endianness Endian) : BBS(Data, Endian) {} + + llvm::support::endianness getEndian() const override { + return BBS.getEndian(); + } + Error readBytes(uint32_t Offset, uint32_t Size, + ArrayRef<uint8_t> &Buffer) override { + return BBS.readBytes(Offset, Size, Buffer); + } + Error readLongestContiguousChunk(uint32_t Offset, + ArrayRef<uint8_t> &Buffer) override { + return BBS.readLongestContiguousChunk(Offset, Buffer); + } + uint32_t getLength() override { return BBS.getLength(); } + +private: + BinaryByteStream BBS; +}; + +class MutableArrayRefImpl : public WritableBinaryStream { +public: + MutableArrayRefImpl(MutableArrayRef<uint8_t> Data, endianness Endian) + : BBS(Data, Endian) {} + + // Inherited via WritableBinaryStream + llvm::support::endianness getEndian() const override { + return BBS.getEndian(); + } + Error readBytes(uint32_t Offset, uint32_t Size, + ArrayRef<uint8_t> &Buffer) override { + return BBS.readBytes(Offset, Size, Buffer); + } + Error readLongestContiguousChunk(uint32_t Offset, + ArrayRef<uint8_t> &Buffer) override { + return BBS.readLongestContiguousChunk(Offset, Buffer); + } + uint32_t getLength() override { return BBS.getLength(); } + + Error writeBytes(uint32_t Offset, ArrayRef<uint8_t> Data) override { + return BBS.writeBytes(Offset, Data); + } + Error commit() override { return BBS.commit(); } + +private: + MutableBinaryByteStream BBS; +}; +} + +BinaryStreamRef::BinaryStreamRef(BinaryStream &Stream) + : BinaryStreamRefBase(Stream) {} +BinaryStreamRef::BinaryStreamRef(BinaryStream &Stream, uint32_t Offset, + Optional<uint32_t> Length) + : BinaryStreamRefBase(Stream, Offset, Length) {} +BinaryStreamRef::BinaryStreamRef(ArrayRef<uint8_t> Data, endianness Endian) + : BinaryStreamRefBase(std::make_shared<ArrayRefImpl>(Data, Endian), 0, + Data.size()) {} +BinaryStreamRef::BinaryStreamRef(StringRef Data, endianness Endian) + : BinaryStreamRef(makeArrayRef(Data.bytes_begin(), Data.bytes_end()), + Endian) {} + +Error BinaryStreamRef::readBytes(uint32_t Offset, uint32_t Size, + ArrayRef<uint8_t> &Buffer) const { + if (auto EC = checkOffsetForRead(Offset, Size)) + return EC; + return BorrowedImpl->readBytes(ViewOffset + Offset, Size, Buffer); +} + +Error BinaryStreamRef::readLongestContiguousChunk( + uint32_t Offset, ArrayRef<uint8_t> &Buffer) const { + if (auto EC = checkOffsetForRead(Offset, 1)) + return EC; + + if (auto EC = + BorrowedImpl->readLongestContiguousChunk(ViewOffset + Offset, Buffer)) + return EC; + // This StreamRef might refer to a smaller window over a larger stream. In + // that case we will have read out more bytes than we should return, because + // we should not read past the end of the current view. + uint32_t MaxLength = getLength() - Offset; + if (Buffer.size() > MaxLength) + Buffer = Buffer.slice(0, MaxLength); + return Error::success(); +} + +WritableBinaryStreamRef::WritableBinaryStreamRef(WritableBinaryStream &Stream) + : BinaryStreamRefBase(Stream) {} + +WritableBinaryStreamRef::WritableBinaryStreamRef(WritableBinaryStream &Stream, + uint32_t Offset, + Optional<uint32_t> Length) + : BinaryStreamRefBase(Stream, Offset, Length) {} + +WritableBinaryStreamRef::WritableBinaryStreamRef(MutableArrayRef<uint8_t> Data, + endianness Endian) + : BinaryStreamRefBase(std::make_shared<MutableArrayRefImpl>(Data, Endian), + 0, Data.size()) {} + + +Error WritableBinaryStreamRef::writeBytes(uint32_t Offset, + ArrayRef<uint8_t> Data) const { + if (auto EC = checkOffsetForWrite(Offset, Data.size())) + return EC; + + return BorrowedImpl->writeBytes(ViewOffset + Offset, Data); +} + +WritableBinaryStreamRef::operator BinaryStreamRef() const { + return BinaryStreamRef(*BorrowedImpl, ViewOffset, Length); +} + +/// For buffered streams, commits changes to the backing store. +Error WritableBinaryStreamRef::commit() { return BorrowedImpl->commit(); } |