summaryrefslogtreecommitdiff
path: root/contrib/llvm/lib/Support/BinaryStreamWriter.cpp
diff options
context:
space:
mode:
authorDimitry Andric <dim@FreeBSD.org>2019-12-20 19:53:05 +0000
committerDimitry Andric <dim@FreeBSD.org>2019-12-20 19:53:05 +0000
commit0b57cec536236d46e3dba9bd041533462f33dbb7 (patch)
tree56229dbdbbf76d18580f72f789003db17246c8d9 /contrib/llvm/lib/Support/BinaryStreamWriter.cpp
parent718ef55ec7785aae63f98f8ca05dc07ed399c16d (diff)
Notes
Diffstat (limited to 'contrib/llvm/lib/Support/BinaryStreamWriter.cpp')
-rw-r--r--contrib/llvm/lib/Support/BinaryStreamWriter.cpp103
1 files changed, 0 insertions, 103 deletions
diff --git a/contrib/llvm/lib/Support/BinaryStreamWriter.cpp b/contrib/llvm/lib/Support/BinaryStreamWriter.cpp
deleted file mode 100644
index 986e18da281d..000000000000
--- a/contrib/llvm/lib/Support/BinaryStreamWriter.cpp
+++ /dev/null
@@ -1,103 +0,0 @@
-//===- BinaryStreamWriter.cpp - Writes objects to a BinaryStream ----------===//
-//
-// 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/BinaryStreamWriter.h"
-
-#include "llvm/Support/BinaryStreamError.h"
-#include "llvm/Support/BinaryStreamReader.h"
-#include "llvm/Support/BinaryStreamRef.h"
-#include "llvm/Support/LEB128.h"
-
-using namespace llvm;
-
-BinaryStreamWriter::BinaryStreamWriter(WritableBinaryStreamRef Ref)
- : Stream(Ref) {}
-
-BinaryStreamWriter::BinaryStreamWriter(WritableBinaryStream &Stream)
- : Stream(Stream) {}
-
-BinaryStreamWriter::BinaryStreamWriter(MutableArrayRef<uint8_t> Data,
- llvm::support::endianness Endian)
- : Stream(Data, Endian) {}
-
-Error BinaryStreamWriter::writeBytes(ArrayRef<uint8_t> Buffer) {
- if (auto EC = Stream.writeBytes(Offset, Buffer))
- return EC;
- Offset += Buffer.size();
- return Error::success();
-}
-
-Error BinaryStreamWriter::writeULEB128(uint64_t Value) {
- uint8_t EncodedBytes[10] = {0};
- unsigned Size = encodeULEB128(Value, &EncodedBytes[0]);
- return writeBytes({EncodedBytes, Size});
-}
-
-Error BinaryStreamWriter::writeSLEB128(int64_t Value) {
- uint8_t EncodedBytes[10] = {0};
- unsigned Size = encodeSLEB128(Value, &EncodedBytes[0]);
- return writeBytes({EncodedBytes, Size});
-}
-
-Error BinaryStreamWriter::writeCString(StringRef Str) {
- if (auto EC = writeFixedString(Str))
- return EC;
- if (auto EC = writeObject('\0'))
- return EC;
-
- return Error::success();
-}
-
-Error BinaryStreamWriter::writeFixedString(StringRef Str) {
-
- return writeBytes(arrayRefFromStringRef(Str));
-}
-
-Error BinaryStreamWriter::writeStreamRef(BinaryStreamRef Ref) {
- return writeStreamRef(Ref, Ref.getLength());
-}
-
-Error BinaryStreamWriter::writeStreamRef(BinaryStreamRef Ref, uint32_t Length) {
- BinaryStreamReader SrcReader(Ref.slice(0, Length));
- // This is a bit tricky. If we just call readBytes, we are requiring that it
- // return us the entire stream as a contiguous buffer. There is no guarantee
- // this can be satisfied by returning a reference straight from the buffer, as
- // an implementation may not store all data in a single contiguous buffer. So
- // we iterate over each contiguous chunk, writing each one in succession.
- while (SrcReader.bytesRemaining() > 0) {
- ArrayRef<uint8_t> Chunk;
- if (auto EC = SrcReader.readLongestContiguousChunk(Chunk))
- return EC;
- if (auto EC = writeBytes(Chunk))
- return EC;
- }
- return Error::success();
-}
-
-std::pair<BinaryStreamWriter, BinaryStreamWriter>
-BinaryStreamWriter::split(uint32_t Off) const {
- assert(getLength() >= Off);
-
- WritableBinaryStreamRef First = Stream.drop_front(Offset);
-
- WritableBinaryStreamRef Second = First.drop_front(Off);
- First = First.keep_front(Off);
- BinaryStreamWriter W1{First};
- BinaryStreamWriter W2{Second};
- return std::make_pair(W1, W2);
-}
-
-Error BinaryStreamWriter::padToAlignment(uint32_t Align) {
- uint32_t NewOffset = alignTo(Offset, Align);
- if (NewOffset > getLength())
- return make_error<BinaryStreamError>(stream_error_code::stream_too_short);
- while (Offset < NewOffset)
- if (auto EC = writeInteger('\0'))
- return EC;
- return Error::success();
-}