1 files changed, 47 insertions, 0 deletions
diff --git a/llvm/lib/DebugInfo/PDB/DIA/DIAEnumSymbols.cpp b/llvm/lib/DebugInfo/PDB/DIA/DIAEnumSymbols.cpp
new file mode 100644
index 0000000000000..5153596d52ae0
--- /dev/null
+++ b/llvm/lib/DebugInfo/PDB/DIA/DIAEnumSymbols.cpp
@@ -0,0 +1,47 @@
+//==- DIAEnumSymbols.cpp - DIA Symbol Enumerator impl ------------*- C++ -*-==//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/DebugInfo/PDB/DIA/DIAEnumSymbols.h"
+#include "llvm/DebugInfo/PDB/DIA/DIARawSymbol.h"
+#include "llvm/DebugInfo/PDB/DIA/DIASession.h"
+#include "llvm/DebugInfo/PDB/PDBSymbol.h"
+
+using namespace llvm;
+using namespace llvm::pdb;
+
+DIAEnumSymbols::DIAEnumSymbols(const DIASession &PDBSession,
+                               CComPtr<IDiaEnumSymbols> DiaEnumerator)
+    : Session(PDBSession), Enumerator(DiaEnumerator) {}
+
+uint32_t DIAEnumSymbols::getChildCount() const {
+  LONG Count = 0;
+  return (S_OK == Enumerator->get_Count(&Count)) ? Count : 0;
+}
+
+std::unique_ptr<PDBSymbol>
+DIAEnumSymbols::getChildAtIndex(uint32_t Index) const {
+  CComPtr<IDiaSymbol> Item;
+  if (S_OK != Enumerator->Item(Index, &Item))
+    return nullptr;
+
+  std::unique_ptr<DIARawSymbol> RawSymbol(new DIARawSymbol(Session, Item));
+  return std::unique_ptr<PDBSymbol>(PDBSymbol::create(Session, std::move(RawSymbol)));
+}
+
+std::unique_ptr<PDBSymbol> DIAEnumSymbols::getNext() {
+  CComPtr<IDiaSymbol> Item;
+  ULONG NumFetched = 0;
+  if (S_OK != Enumerator->Next(1, &Item, &NumFetched))
+    return nullptr;
+
+  std::unique_ptr<DIARawSymbol> RawSymbol(new DIARawSymbol(Session, Item));
+  return std::unique_ptr<PDBSymbol>(
+      PDBSymbol::create(Session, std::move(RawSymbol)));
+}
+
+void DIAEnumSymbols::reset() { Enumerator->Reset(); }