1 //===-- UnresolvedSet.h - Unresolved sets of declarations  ------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 //  This file defines the WeakInfo class, which is used to store
11 //  information about the target of a #pragma weak directive.
12 //
13 //===----------------------------------------------------------------------===//
14 
15 #ifndef LLVM_CLANG_SEMA_WEAK_H
16 #define LLVM_CLANG_SEMA_WEAK_H
17 
18 #include "clang/Basic/SourceLocation.h"
19 
20 namespace clang {
21 
22 class IdentifierInfo;
23 
24 /// \brief Captures information about a \#pragma weak directive.
25 class WeakInfo {
26   IdentifierInfo *alias;  // alias (optional)
27   SourceLocation loc;     // for diagnostics
28   bool used;              // identifier later declared?
29 public:
WeakInfo()30   WeakInfo()
31     : alias(nullptr), loc(SourceLocation()), used(false) {}
WeakInfo(IdentifierInfo * Alias,SourceLocation Loc)32   WeakInfo(IdentifierInfo *Alias, SourceLocation Loc)
33     : alias(Alias), loc(Loc), used(false) {}
getAlias()34   inline IdentifierInfo * getAlias() const { return alias; }
getLocation()35   inline SourceLocation getLocation() const { return loc; }
36   void setUsed(bool Used=true) { used = Used; }
getUsed()37   inline bool getUsed() { return used; }
38   bool operator==(WeakInfo RHS) const {
39     return alias == RHS.getAlias() && loc == RHS.getLocation();
40   }
41   bool operator!=(WeakInfo RHS) const { return !(*this == RHS); }
42 };
43 
44 } // end namespace clang
45 
46 #endif // LLVM_CLANG_SEMA_WEAK_H
47