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#pragma once
#ifdef __GNUC__
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-parameter"
#endif
//===- 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"
#include <cassert>
#include <cstdint>
#include <memory>
namespace llvm {
namespace pdb {
template <typename ChildType> class IPDBEnumChildren {
public:
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 {
return nullptr;
}
std::unique_ptr<ChildType> getNext() override { return nullptr; }
void reset() override {}
};
} // end namespace pdb
} // end namespace llvm
#endif // LLVM_DEBUGINFO_PDB_IPDBENUMCHILDREN_H
#ifdef __GNUC__
#pragma GCC diagnostic pop
#endif
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