1//=== SelectorExtras.h - Helpers for checkers using selectors -----*- 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#ifndef LLVM_CLANG_LIB_ANALYSIS_SELECTOREXTRAS_H 10#define LLVM_CLANG_LIB_ANALYSIS_SELECTOREXTRAS_H 11 12#include "clang/AST/ASTContext.h" 13 14namespace clang { 15 16template <typename... IdentifierInfos> 17static inline Selector getKeywordSelector(ASTContext &Ctx, 18 IdentifierInfos *... IIs) { 19 static_assert(sizeof...(IdentifierInfos), 20 "keyword selectors must have at least one argument"); 21 SmallVector<IdentifierInfo *, 10> II({&Ctx.Idents.get(IIs)...}); 22 23 return Ctx.Selectors.getSelector(II.size(), &II[0]); 24} 25 26template <typename... IdentifierInfos> 27static inline void lazyInitKeywordSelector(Selector &Sel, ASTContext &Ctx, 28 IdentifierInfos *... IIs) { 29 if (!Sel.isNull()) 30 return; 31 Sel = getKeywordSelector(Ctx, IIs...); 32} 33 34} // end namespace clang 35 36#endif 37