[pdb] Round trip the PDB stream between YAML and binary PDB.

This gets writing of the PDB stream working.

llvm-svn: 274647

1 files changed, 20 insertions, 0 deletions

diff --git a/llvm/lib/DebugInfo/PDB/Raw/NameMap.cpp b/llvm/lib/DebugInfo/PDB/Raw/NameMap.cpp
index 51ec66a1b9d..3638380eb22 100644
--- a/llvm/lib/DebugInfo/PDB/Raw/NameMap.cpp
+++ b/llvm/lib/DebugInfo/PDB/Raw/NameMap.cpp
@@ -10,9 +10,11 @@
 #include "llvm/DebugInfo/PDB/Raw/NameMap.h"
 #include "llvm/ADT/SparseBitVector.h"
 #include "llvm/DebugInfo/CodeView/StreamReader.h"
+#include "llvm/DebugInfo/CodeView/StreamWriter.h"
 #include "llvm/DebugInfo/PDB/Raw/RawError.h"
 
 using namespace llvm;
+using namespace llvm::codeview;
 using namespace llvm::pdb;
 
 NameMap::NameMap() {}
@@ -143,6 +145,24 @@ Error NameMap::load(codeview::StreamReader &Stream) {
   return Error::success();
 }
 
+Error NameMap::commit(codeview::StreamWriter &Writer) {
+  if (auto EC = Writer.writeInteger(0U)) // Number of bytes in table
+    return EC;
+
+  if (auto EC = Writer.writeInteger(0U)) // Hash Size
+    return EC;
+
+  if (auto EC = Writer.writeInteger(0U)) // Max Number of Strings
+    return EC;
+
+  if (auto EC = Writer.writeInteger(0U)) // Num Present Words
+    return EC;
+
+  if (auto EC = Writer.writeInteger(0U)) // Num Deleted Words
+    return EC;
+  return Error::success();
+}
+
 iterator_range<StringMapConstIterator<uint32_t>> NameMap::entries() const {
   return llvm::make_range<StringMapConstIterator<uint32_t>>(Mapping.begin(),
                                                             Mapping.end());