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