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//=== SelectorExtras.h - Helpers for checkers using selectors -----*- C++ -*-=//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_LIB_STATICANALYZER_CHECKERS_SELECTOREXTRAS_H
#define LLVM_CLANG_LIB_STATICANALYZER_CHECKERS_SELECTOREXTRAS_H
#include "clang/AST/ASTContext.h"
namespace clang {
namespace ento {
template <typename... IdentifierInfos>
static inline Selector getKeywordSelector(ASTContext &Ctx,
IdentifierInfos *... IIs) {
static_assert(sizeof...(IdentifierInfos),
"keyword selectors must have at least one argument");
SmallVector<IdentifierInfo *, 10> II({&Ctx.Idents.get(IIs)...});
return Ctx.Selectors.getSelector(II.size(), &II[0]);
}
template <typename... IdentifierInfos>
static inline void lazyInitKeywordSelector(Selector &Sel, ASTContext &Ctx,
IdentifierInfos *... IIs) {
if (!Sel.isNull())
return;
Sel = getKeywordSelector(Ctx, IIs...);
}
static inline void lazyInitNullarySelector(Selector &Sel, ASTContext &Ctx,
const char *Name) {
if (!Sel.isNull())
return;
Sel = GetNullarySelector(Name, Ctx);
}
} // end namespace ento
} // end namespace clang
#endif
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