1 //===-- UnresolvedSet.h - Unresolved sets of declarations ------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This file defines the WeakInfo class, which is used to store 10 // information about the target of a #pragma weak directive. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef LLVM_CLANG_SEMA_WEAK_H 15 #define LLVM_CLANG_SEMA_WEAK_H 16 17 #include "clang/Basic/SourceLocation.h" 18 19 namespace clang { 20 21 class IdentifierInfo; 22 23 /// Captures information about a \#pragma weak directive. 24 class WeakInfo { 25 IdentifierInfo *alias; // alias (optional) 26 SourceLocation loc; // for diagnostics 27 bool used; // identifier later declared? 28 public: 29 WeakInfo() 30 : alias(nullptr), loc(SourceLocation()), used(false) {} 31 WeakInfo(IdentifierInfo *Alias, SourceLocation Loc) 32 : alias(Alias), loc(Loc), used(false) {} 33 inline IdentifierInfo * getAlias() const { return alias; } 34 inline SourceLocation getLocation() const { return loc; } 35 void setUsed(bool Used=true) { used = Used; } 36 inline bool getUsed() { return used; } 37 bool operator==(WeakInfo RHS) const { 38 return alias == RHS.getAlias() && loc == RHS.getLocation(); 39 } 40 bool operator!=(WeakInfo RHS) const { return !(*this == RHS); } 41 }; 42 43 } // end namespace clang 44 45 #endif // LLVM_CLANG_SEMA_WEAK_H 46