Rename some PDB classes.

We have a lot of very similarly named classes related to
dealing with module debug info.  This patch has NFC, it just
renames some classes to be more descriptive (albeit slightly
more to type).  The mapping from old to new class names is as
follows:

   Old          |        New
ModInfo         | DbiModuleDescriptor
ModuleSubstream | ModuleDebugFragment
ModStream       | ModuleDebugStream

With the corresponding Builder classes renamed accordingly.

Differential Revision: https://reviews.llvm.org/D32506

llvm-svn: 301555

1 files changed, 90 insertions, 0 deletions

diff --git a/llvm/lib/DebugInfo/PDB/Native/DbiModuleDescriptor.cpp b/llvm/lib/DebugInfo/PDB/Native/DbiModuleDescriptor.cpp
new file mode 100644
index 00000000000..e04388be7f3
--- /dev/null
+++ b/llvm/lib/DebugInfo/PDB/Native/DbiModuleDescriptor.cpp
@@ -0,0 +1,90 @@
+//===- DbiModuleDescriptor.cpp - PDB module information -------------------===//
+//
+//                     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/DbiModuleDescriptor.h"
+#include "llvm/DebugInfo/PDB/Native/RawTypes.h"
+#include "llvm/Support/BinaryStreamReader.h"
+#include "llvm/Support/Endian.h"
+#include "llvm/Support/Error.h"
+#include "llvm/Support/MathExtras.h"
+#include <cstdint>
+
+using namespace llvm;
+using namespace llvm::pdb;
+using namespace llvm::support;
+
+DbiModuleDescriptor::DbiModuleDescriptor() = default;
+
+DbiModuleDescriptor::DbiModuleDescriptor(const DbiModuleDescriptor &Info) =
+    default;
+
+DbiModuleDescriptor::~DbiModuleDescriptor() = default;
+
+Error DbiModuleDescriptor::initialize(BinaryStreamRef Stream,
+                                      DbiModuleDescriptor &Info) {
+  BinaryStreamReader Reader(Stream);
+  if (auto EC = Reader.readObject(Info.Layout))
+    return EC;
+
+  if (auto EC = Reader.readCString(Info.ModuleName))
+    return EC;
+
+  if (auto EC = Reader.readCString(Info.ObjFileName))
+    return EC;
+  return Error::success();
+}
+
+bool DbiModuleDescriptor::hasECInfo() const {
+  return (Layout->Flags & ModInfoFlags::HasECFlagMask) != 0;
+}
+
+uint16_t DbiModuleDescriptor::getTypeServerIndex() const {
+  return (Layout->Flags & ModInfoFlags::TypeServerIndexMask) >>
+         ModInfoFlags::TypeServerIndexShift;
+}
+
+uint16_t DbiModuleDescriptor::getModuleStreamIndex() const {
+  return Layout->ModDiStream;
+}
+
+uint32_t DbiModuleDescriptor::getSymbolDebugInfoByteSize() const {
+  return Layout->SymBytes;
+}
+
+uint32_t DbiModuleDescriptor::getLineInfoByteSize() const {
+  return Layout->LineBytes;
+}
+
+uint32_t DbiModuleDescriptor::getC13LineInfoByteSize() const {
+  return Layout->C13Bytes;
+}
+
+uint32_t DbiModuleDescriptor::getNumberOfFiles() const {
+  return Layout->NumFiles;
+}
+
+uint32_t DbiModuleDescriptor::getSourceFileNameIndex() const {
+  return Layout->SrcFileNameNI;
+}
+
+uint32_t DbiModuleDescriptor::getPdbFilePathNameIndex() const {
+  return Layout->PdbFilePathNI;
+}
+
+StringRef DbiModuleDescriptor::getModuleName() const { return ModuleName; }
+
+StringRef DbiModuleDescriptor::getObjFileName() const { return ObjFileName; }
+
+uint32_t DbiModuleDescriptor::getRecordLength() const {
+  uint32_t M = ModuleName.str().size() + 1;
+  uint32_t O = ObjFileName.str().size() + 1;
+  uint32_t Size = sizeof(ModuleInfoHeader) + M + O;
+  Size = alignTo(Size, 4);
+  return Size;
+}