clang-1/include/clang/Sema/Weak.h

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//===-- UnresolvedSet.h - Unresolved sets of declarations ------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines the WeakInfo class, which is used to store
// information about the target of a #pragma weak directive.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_SEMA_WEAK_H
#define LLVM_CLANG_SEMA_WEAK_H
#include "clang/Basic/SourceLocation.h"
namespace clang {
class IdentifierInfo;
/// \brief Captures information about a #pragma weak directive.
class WeakInfo {
IdentifierInfo *alias; // alias (optional)
SourceLocation loc; // for diagnostics
bool used; // identifier later declared?
public:
WeakInfo()
: alias(0), loc(SourceLocation()), used(false) {}
WeakInfo(IdentifierInfo *Alias, SourceLocation Loc)
: alias(Alias), loc(Loc), used(false) {}
inline IdentifierInfo * getAlias() const { return alias; }
inline SourceLocation getLocation() const { return loc; }
void setUsed(bool Used=true) { used = Used; }
inline bool getUsed() { return used; }
bool operator==(WeakInfo RHS) const {
return alias == RHS.getAlias() && loc == RHS.getLocation();
}
bool operator!=(WeakInfo RHS) const { return !(*this == RHS); }
};
} // end namespace clang
#endif // LLVM_CLANG_SEMA_WEAK_H