1 files changed, 59 insertions, 0 deletions
diff --git a/include/llvm/DebugInfo/PDB/ConcreteSymbolEnumerator.h b/include/llvm/DebugInfo/PDB/ConcreteSymbolEnumerator.h
new file mode 100644
index 0000000..96ce12f
--- /dev/null
+++ b/include/llvm/DebugInfo/PDB/ConcreteSymbolEnumerator.h
@@ -0,0 +1,59 @@
+//===- ConcreteSymbolEnumerator.h -------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_DEBUGINFO_PDB_CONCRETESYMBOLENUMERATOR_H
+#define LLVM_DEBUGINFO_PDB_CONCRETESYMBOLENUMERATOR_H
+
+#include "IPDBEnumChildren.h"
+#include "llvm/Support/Casting.h"
+#include <memory>
+
+namespace llvm {
+
+template <typename ChildType>
+class ConcreteSymbolEnumerator : public IPDBEnumChildren<ChildType> {
+public:
+  ConcreteSymbolEnumerator(std::unique_ptr<IPDBEnumSymbols> SymbolEnumerator)
+      : Enumerator(std::move(SymbolEnumerator)) {}
+
+  virtual ~ConcreteSymbolEnumerator() {}
+
+  uint32_t getChildCount() const override {
+    return Enumerator->getChildCount();
+  }
+
+  std::unique_ptr<ChildType> getChildAtIndex(uint32_t Index) const override {
+    std::unique_ptr<PDBSymbol> Child = Enumerator->getChildAtIndex(Index);
+    return make_concrete_child(std::move(Child));
+  }
+
+  std::unique_ptr<ChildType> getNext() override {
+    std::unique_ptr<PDBSymbol> Child = Enumerator->getNext();
+    return make_concrete_child(std::move(Child));
+  }
+
+  void reset() override { Enumerator->reset(); }
+
+  ConcreteSymbolEnumerator<ChildType> *clone() const override {
+    std::unique_ptr<IPDBEnumSymbols> WrappedClone(Enumerator->clone());
+    return new ConcreteSymbolEnumerator<ChildType>(std::move(WrappedClone));
+  }
+
+private:
+  std::unique_ptr<ChildType>
+  make_concrete_child(std::unique_ptr<PDBSymbol> Child) const {
+    ChildType *ConcreteChild = dyn_cast_or_null<ChildType>(Child.release());
+    return std::unique_ptr<ChildType>(ConcreteChild);
+  }
+
+  std::unique_ptr<IPDBEnumSymbols> Enumerator;
+};
+}
+
+#endif