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#pragma once
#ifdef __GNUC__
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-parameter"
#endif
//===-- NoopLattice.h -------------------------------------------*- 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
//
//===----------------------------------------------------------------------===//
//
// This file defines the lattice with exactly one element.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_ANALYSIS_FLOWSENSITIVE_NOOP_LATTICE_H
#define LLVM_CLANG_ANALYSIS_FLOWSENSITIVE_NOOP_LATTICE_H
#include "clang/Analysis/FlowSensitive/DataflowLattice.h"
#include <ostream>
namespace clang {
namespace dataflow {
/// Trivial lattice for dataflow analysis with exactly one element.
///
/// Useful for analyses that only need the Environment and nothing more.
class NoopLattice {
public:
bool operator==(const NoopLattice &Other) const { return true; }
LatticeJoinEffect join(const NoopLattice &Other) {
return LatticeJoinEffect::Unchanged;
}
};
inline std::ostream &operator<<(std::ostream &OS, const NoopLattice &) {
return OS << "noop";
}
} // namespace dataflow
} // namespace clang
#endif // LLVM_CLANG_ANALYSIS_FLOWSENSITIVE_NOOP_LATTICE_H
#ifdef __GNUC__
#pragma GCC diagnostic pop
#endif
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