Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/lib/DebugInfo/PDB/Native/ModuleDebugStream.cpp

@@ -1,123 +0,0 @@
-//===- ModuleDebugStream.cpp - PDB Module Info Stream Access --------------===//
-//
-//                     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/Native/ModuleDebugStream.h"
-#include "llvm/ADT/iterator_range.h"
-#include "llvm/DebugInfo/CodeView/CodeView.h"
-#include "llvm/DebugInfo/CodeView/DebugChecksumsSubsection.h"
-#include "llvm/DebugInfo/CodeView/SymbolRecord.h"
-#include "llvm/DebugInfo/PDB/Native/DbiModuleDescriptor.h"
-#include "llvm/DebugInfo/PDB/Native/RawError.h"
-#include "llvm/Support/BinaryStreamReader.h"
-#include "llvm/Support/BinaryStreamRef.h"
-#include "llvm/Support/Error.h"
-#include <algorithm>
-#include <cstdint>
-
-using namespace llvm;
-using namespace llvm::codeview;
-using namespace llvm::msf;
-using namespace llvm::pdb;
-
-ModuleDebugStreamRef::ModuleDebugStreamRef(
-    const DbiModuleDescriptor &Module,
-    std::unique_ptr<MappedBlockStream> Stream)
-    : Mod(Module), Stream(std::move(Stream)) {}
-
-ModuleDebugStreamRef::~ModuleDebugStreamRef() = default;
-
-Error ModuleDebugStreamRef::reload() {
-  BinaryStreamReader Reader(*Stream);
-
-  uint32_t SymbolSize = Mod.getSymbolDebugInfoByteSize();
-  uint32_t C11Size = Mod.getC11LineInfoByteSize();
-  uint32_t C13Size = Mod.getC13LineInfoByteSize();
-
-  if (C11Size > 0 && C13Size > 0)
-    return make_error<RawError>(raw_error_code::corrupt_file,
-                                "Module has both C11 and C13 line info");
-
-  BinaryStreamRef S;
-
-  if (auto EC = Reader.readInteger(Signature))
-    return EC;
-  if (auto EC = Reader.readSubstream(SymbolsSubstream, SymbolSize - 4))
-    return EC;
-  if (auto EC = Reader.readSubstream(C11LinesSubstream, C11Size))
-    return EC;
-  if (auto EC = Reader.readSubstream(C13LinesSubstream, C13Size))
-    return EC;
-
-  BinaryStreamReader SymbolReader(SymbolsSubstream.StreamData);
-  if (auto EC =
-          SymbolReader.readArray(SymbolArray, SymbolReader.bytesRemaining()))
-    return EC;
-
-  BinaryStreamReader SubsectionsReader(C13LinesSubstream.StreamData);
-  if (auto EC = SubsectionsReader.readArray(Subsections,
-                                            SubsectionsReader.bytesRemaining()))
-    return EC;
-
-  uint32_t GlobalRefsSize;
-  if (auto EC = Reader.readInteger(GlobalRefsSize))
-    return EC;
-  if (auto EC = Reader.readSubstream(GlobalRefsSubstream, GlobalRefsSize))
-    return EC;
-  if (Reader.bytesRemaining() > 0)
-    return make_error<RawError>(raw_error_code::corrupt_file,
-                                "Unexpected bytes in module stream.");
-
-  return Error::success();
-}
-
-BinarySubstreamRef ModuleDebugStreamRef::getSymbolsSubstream() const {
-  return SymbolsSubstream;
-}
-
-BinarySubstreamRef ModuleDebugStreamRef::getC11LinesSubstream() const {
-  return C11LinesSubstream;
-}
-
-BinarySubstreamRef ModuleDebugStreamRef::getC13LinesSubstream() const {
-  return C13LinesSubstream;
-}
-
-BinarySubstreamRef ModuleDebugStreamRef::getGlobalRefsSubstream() const {
-  return GlobalRefsSubstream;
-}
-
-iterator_range<codeview::CVSymbolArray::Iterator>
-ModuleDebugStreamRef::symbols(bool *HadError) const {
-  return make_range(SymbolArray.begin(HadError), SymbolArray.end());
-}
-
-iterator_range<ModuleDebugStreamRef::DebugSubsectionIterator>
-ModuleDebugStreamRef::subsections() const {
-  return make_range(Subsections.begin(), Subsections.end());
-}
-
-bool ModuleDebugStreamRef::hasDebugSubsections() const {
-  return !C13LinesSubstream.empty();
-}
-
-Error ModuleDebugStreamRef::commit() { return Error::success(); }
-
-Expected<codeview::DebugChecksumsSubsectionRef>
-ModuleDebugStreamRef::findChecksumsSubsection() const {
-  codeview::DebugChecksumsSubsectionRef Result;
-  for (const auto &SS : subsections()) {
-    if (SS.kind() != DebugSubsectionKind::FileChecksums)
-      continue;
-
-    if (auto EC = Result.initialize(SS.getRecordData()))
-      return std::move(EC);
-    return Result;
-  }
-  return Result;
-}