6024e5c395
clang 20.0.0 (based on r547379) from build 12806354. Bug: http://b/379133546 Test: N/A Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
44 lines
1.2 KiB
C++
44 lines
1.2 KiB
C++
//===- ASTDiffInternal.h --------------------------------------*- C++ -*- -===//
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//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_TOOLING_ASTDIFF_ASTDIFFINTERNAL_H
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#define LLVM_CLANG_TOOLING_ASTDIFF_ASTDIFFINTERNAL_H
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#include "clang/AST/ASTTypeTraits.h"
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namespace clang {
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namespace diff {
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using DynTypedNode = DynTypedNode;
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/// Within a tree, this identifies a node by its preorder offset.
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struct NodeId {
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private:
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static constexpr int InvalidNodeId = -1;
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public:
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int Id;
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NodeId() : Id(InvalidNodeId) {}
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NodeId(int Id) : Id(Id) {}
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operator int() const { return Id; }
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NodeId &operator++() { return ++Id, *this; }
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NodeId &operator--() { return --Id, *this; }
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// Support defining iterators on NodeId.
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NodeId &operator*() { return *this; }
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bool isValid() const { return Id != InvalidNodeId; }
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bool isInvalid() const { return Id == InvalidNodeId; }
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};
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} // end namespace diff
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} // end namespace clang
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#endif
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