Imported Upstream version 5.18.0.207

Former-commit-id: 3b152f462918d427ce18620a2cbe4f8b79650449

external/llvm/lib/DebugInfo/CodeView/DebugStringTableSubsection.cpp

@@ -1,90 +0,0 @@
-//===- DebugStringTableSubsection.cpp - CodeView String Table -------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/DebugInfo/CodeView/DebugStringTableSubsection.h"
-#include "llvm/ADT/StringRef.h"
-#include "llvm/DebugInfo/CodeView/CodeView.h"
-#include "llvm/Support/BinaryStreamReader.h"
-#include "llvm/Support/BinaryStreamWriter.h"
-#include "llvm/Support/Error.h"
-#include <algorithm>
-#include <cassert>
-#include <cstdint>
-
-using namespace llvm;
-using namespace llvm::codeview;
-
-DebugStringTableSubsectionRef::DebugStringTableSubsectionRef()
-    : DebugSubsectionRef(DebugSubsectionKind::StringTable) {}
-
-Error DebugStringTableSubsectionRef::initialize(BinaryStreamRef Contents) {
-  Stream = Contents;
-  return Error::success();
-}
-
-Error DebugStringTableSubsectionRef::initialize(BinaryStreamReader &Reader) {
-  return Reader.readStreamRef(Stream);
-}
-
-Expected<StringRef>
-DebugStringTableSubsectionRef::getString(uint32_t Offset) const {
-  BinaryStreamReader Reader(Stream);
-  Reader.setOffset(Offset);
-  StringRef Result;
-  if (auto EC = Reader.readCString(Result))
-    return std::move(EC);
-  return Result;
-}
-
-DebugStringTableSubsection::DebugStringTableSubsection()
-    : DebugSubsection(DebugSubsectionKind::StringTable) {}
-
-uint32_t DebugStringTableSubsection::insert(StringRef S) {
-  auto P = Strings.insert({S, StringSize});
-
-  // If a given string didn't exist in the string table, we want to increment
-  // the string table size.
-  if (P.second)
-    StringSize += S.size() + 1; // +1 for '\0'
-  return P.first->second;
-}
-
-uint32_t DebugStringTableSubsection::calculateSerializedSize() const {
-  return StringSize;
-}
-
-Error DebugStringTableSubsection::commit(BinaryStreamWriter &Writer) const {
-  uint32_t Begin = Writer.getOffset();
-  uint32_t End = Begin + StringSize;
-
-  // Write a null string at the beginning.
-  if (auto EC = Writer.writeCString(StringRef()))
-    return EC;
-
-  for (auto &Pair : Strings) {
-    StringRef S = Pair.getKey();
-    uint32_t Offset = Begin + Pair.getValue();
-    Writer.setOffset(Offset);
-    if (auto EC = Writer.writeCString(S))
-      return EC;
-    assert(Writer.getOffset() <= End);
-  }
-
-  Writer.setOffset(End);
-  assert((End - Begin) == StringSize);
-  return Error::success();
-}
-
-uint32_t DebugStringTableSubsection::size() const { return Strings.size(); }
-
-uint32_t DebugStringTableSubsection::getStringId(StringRef S) const {
-  auto Iter = Strings.find(S);
-  assert(Iter != Strings.end());
-  return Iter->second;
-}