6024e5c395
clang 20.0.0 (based on r547379) from build 12806354. Bug: http://b/379133546 Test: N/A Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
57 lines
1.9 KiB
C++
57 lines
1.9 KiB
C++
//===-- UnresolvedSet.h - Unresolved sets of declarations ------*- 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 WeakInfo class, which is used to store
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// information about the target of a #pragma weak directive.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_SEMA_WEAK_H
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#define LLVM_CLANG_SEMA_WEAK_H
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#include "clang/Basic/SourceLocation.h"
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#include "llvm/ADT/DenseMapInfo.h"
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namespace clang {
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class IdentifierInfo;
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/// Captures information about a \#pragma weak directive.
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class WeakInfo {
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const IdentifierInfo *alias = nullptr; // alias (optional)
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SourceLocation loc; // for diagnostics
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public:
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WeakInfo() = default;
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WeakInfo(const IdentifierInfo *Alias, SourceLocation Loc)
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: alias(Alias), loc(Loc) {}
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inline const IdentifierInfo *getAlias() const { return alias; }
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inline SourceLocation getLocation() const { return loc; }
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bool operator==(WeakInfo RHS) const = delete;
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bool operator!=(WeakInfo RHS) const = delete;
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struct DenseMapInfoByAliasOnly
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: private llvm::DenseMapInfo<const IdentifierInfo *> {
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static inline WeakInfo getEmptyKey() {
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return WeakInfo(DenseMapInfo::getEmptyKey(), SourceLocation());
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}
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static inline WeakInfo getTombstoneKey() {
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return WeakInfo(DenseMapInfo::getTombstoneKey(), SourceLocation());
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}
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static unsigned getHashValue(const WeakInfo &W) {
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return DenseMapInfo::getHashValue(W.getAlias());
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}
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static bool isEqual(const WeakInfo &LHS, const WeakInfo &RHS) {
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return DenseMapInfo::isEqual(LHS.getAlias(), RHS.getAlias());
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}
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};
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};
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} // end namespace clang
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#endif // LLVM_CLANG_SEMA_WEAK_H
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