| //===- IPDBEnumChildren.h - base interface for child enumerator -*- 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 |
| //===----------------------------------------------------------------------===// |
| #ifndef LLVM_DEBUGINFO_PDB_IPDBENUMCHILDREN_H |
| #define LLVM_DEBUGINFO_PDB_IPDBENUMCHILDREN_H |
| #include "llvm/DebugInfo/CodeView/LazyRandomTypeCollection.h" |
| template <typename ChildType> class IPDBEnumChildren { |
| using ChildTypePtr = std::unique_ptr<ChildType>; |
| using MyType = IPDBEnumChildren<ChildType>; |
| virtual ~IPDBEnumChildren() = default; |
| virtual uint32_t getChildCount() const = 0; |
| virtual ChildTypePtr getChildAtIndex(uint32_t Index) const = 0; |
| virtual ChildTypePtr getNext() = 0; |
| virtual void reset() = 0; |
| template <typename ChildType> |
| class NullEnumerator : public IPDBEnumChildren<ChildType> { |
| uint32_t getChildCount() const override { return 0; } |
| std::unique_ptr<ChildType> getChildAtIndex(uint32_t Index) const override { |
| std::unique_ptr<ChildType> getNext() override { return nullptr; } |
| #endif // LLVM_DEBUGINFO_PDB_IPDBENUMCHILDREN_H |