[codeview] Move StreamInterface and StreamReader to libcodeview.

We have need to reuse this functionality, including making
additional generic stream types that are smarter about how and
when they copy memory versus referencing the original memory.
So all of these structures belong in the common library
rather than being pdb specific.

llvm-svn: 270751

1 files changed, 0 insertions, 50 deletions

diff --git a/llvm/lib/DebugInfo/PDB/Raw/StreamReader.cpp b/llvm/lib/DebugInfo/PDB/Raw/StreamReader.cpp
deleted file mode 100644
index ed9c9d400af..00000000000
--- a/llvm/lib/DebugInfo/PDB/Raw/StreamReader.cpp
+++ /dev/null
@@ -1,50 +0,0 @@
-//===- StreamReader.cpp - Reads bytes and objects from a stream -----------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/DebugInfo/PDB/Raw/StreamReader.h"
-#include "llvm/DebugInfo/PDB/Raw/RawError.h"
-
-using namespace llvm;
-using namespace llvm::pdb;
-
-StreamReader::StreamReader(const StreamInterface &S) : Stream(S), Offset(0) {}
-
-Error StreamReader::readBytes(MutableArrayRef<uint8_t> Buffer) {
-  if (auto EC = Stream.readBytes(Offset, Buffer))
-    return EC;
-  Offset += Buffer.size();
-  return Error::success();
-}
-
-Error StreamReader::readInteger(uint32_t &Dest) {
-  support::ulittle32_t P;
-  if (auto EC = readObject(&P))
-    return EC;
-  Dest = P;
-  return Error::success();
-}
-
-Error StreamReader::readZeroString(std::string &Dest) {
-  Dest.clear();
-  char C;
-  do {
-    if (auto EC = readObject(&C))
-      return EC;
-    if (C != '\0')
-      Dest.push_back(C);
-  } while (C != '\0');
-  return Error::success();
-}
-
-Error StreamReader::getArrayRef(ArrayRef<uint8_t> &Array, uint32_t Length) {
-  if (auto EC = Stream.getArrayRef(Offset, Array, Length))
-    return EC;
-  Offset += Length;
-  return Error::success();
-}