[PDB] Make the native reader support enumerators.

[android-x86/external-llvm.git] / include / llvm / DebugInfo / PDB / IPDBEnumChildren.h

diff --git a/include/llvm/DebugInfo/PDB/IPDBEnumChildren.h b/include/llvm/DebugInfo/PDB/IPDBEnumChildren.h
index e846ffd..380302e 100644 (file)
--- a/include/llvm/DebugInfo/PDB/IPDBEnumChildren.h
+++ b/include/llvm/DebugInfo/PDB/IPDBEnumChildren.h
@@ -29,6 +29,21 @@ public:
   virtual void reset() = 0;
 };
 
+template <typename ChildType>
+class NullEnumerator : public IPDBEnumChildren<ChildType> {
+  virtual uint32_t getChildCount() const override { return 0; }
+  virtual std::unique_ptr<ChildType>
+  getChildAtIndex(uint32_t Index) const override {
+    assert(false);
+    return nullptr;
+  }
+  virtual std::unique_ptr<ChildType> getNext() override {
+    assert(false);
+    return nullptr;
+  }
+  virtual void reset() override {}
+};
+
 } // end namespace pdb
 } // end namespace llvm