Imported Upstream version 5.18.0.161

Former-commit-id: 4db48158d3a35497b8f118ab21b5f08ac3d86d98

external/llvm/lib/DebugInfo/PDB/DIA/DIAEnumSourceFiles.cpp

@@ -0,0 +1,51 @@
+//==- DIAEnumSourceFiles.cpp - DIA Source File Enumerator impl ---*- C++ -*-==//
+//
+//                     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/DIA/DIAEnumSourceFiles.h"
+#include "llvm/DebugInfo/PDB/DIA/DIASourceFile.h"
+#include "llvm/DebugInfo/PDB/PDBSymbol.h"
+
+using namespace llvm;
+using namespace llvm::pdb;
+
+DIAEnumSourceFiles::DIAEnumSourceFiles(
+    const DIASession &PDBSession, CComPtr<IDiaEnumSourceFiles> DiaEnumerator)
+    : Session(PDBSession), Enumerator(DiaEnumerator) {}
+
+uint32_t DIAEnumSourceFiles::getChildCount() const {
+  LONG Count = 0;
+  return (S_OK == Enumerator->get_Count(&Count)) ? Count : 0;
+}
+
+std::unique_ptr<IPDBSourceFile>
+DIAEnumSourceFiles::getChildAtIndex(uint32_t Index) const {
+  CComPtr<IDiaSourceFile> Item;
+  if (S_OK != Enumerator->Item(Index, &Item))
+    return nullptr;
+
+  return std::unique_ptr<IPDBSourceFile>(new DIASourceFile(Session, Item));
+}
+
+std::unique_ptr<IPDBSourceFile> DIAEnumSourceFiles::getNext() {
+  CComPtr<IDiaSourceFile> Item;
+  ULONG NumFetched = 0;
+  if (S_OK != Enumerator->Next(1, &Item, &NumFetched))
+    return nullptr;
+
+  return std::unique_ptr<IPDBSourceFile>(new DIASourceFile(Session, Item));
+}
+
+void DIAEnumSourceFiles::reset() { Enumerator->Reset(); }
+
+DIAEnumSourceFiles *DIAEnumSourceFiles::clone() const {
+  CComPtr<IDiaEnumSourceFiles> EnumeratorClone;
+  if (S_OK != Enumerator->Clone(&EnumeratorClone))
+    return nullptr;
+  return new DIAEnumSourceFiles(Session, EnumeratorClone);
+}