6024e5c395
clang 20.0.0 (based on r547379) from build 12806354. Bug: http://b/379133546 Test: N/A Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
42 lines
1.3 KiB
C++
42 lines
1.3 KiB
C++
//===-- NoopLattice.h -------------------------------------------*- C++ -*-===//
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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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//
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// This file defines the lattice with exactly one element.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_ANALYSIS_FLOWSENSITIVE_NOOP_LATTICE_H
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#define LLVM_CLANG_ANALYSIS_FLOWSENSITIVE_NOOP_LATTICE_H
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#include "clang/Analysis/FlowSensitive/DataflowLattice.h"
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#include <ostream>
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namespace clang {
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namespace dataflow {
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/// Trivial lattice for dataflow analysis with exactly one element.
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///
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/// Useful for analyses that only need the Environment and nothing more.
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class NoopLattice {
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public:
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bool operator==(const NoopLattice &Other) const { return true; }
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LatticeJoinEffect join(const NoopLattice &Other) {
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return LatticeJoinEffect::Unchanged;
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}
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};
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inline std::ostream &operator<<(std::ostream &OS, const NoopLattice &) {
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return OS << "noop";
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}
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} // namespace dataflow
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} // namespace clang
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#endif // LLVM_CLANG_ANALYSIS_FLOWSENSITIVE_NOOP_LATTICE_H
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