| //=== 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_ANALYSIS_SELECTOREXTRAS_H |
| #define LLVM_CLANG_LIB_ANALYSIS_SELECTOREXTRAS_H |
| |
| #include "clang/AST/ASTContext.h" |
| |
| namespace clang { |
| |
| 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...); |
| } |
| |
| } // end namespace clang |
| |
| #endif |
