1 //=== SelectorExtras.h - Helpers for checkers using selectors -----*- C++ -*-=// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #ifndef LLVM_CLANG_SA_CHECKERS_SELECTOREXTRAS 11 #define LLVM_CLANG_SA_CHECKERS_SELECTOREXTRAS 12 13 #include "clang/AST/ASTContext.h" 14 #include <cstdarg> 15 16 namespace clang { 17 namespace ento { 18 19 static inline Selector getKeywordSelectorImpl(ASTContext &Ctx, 20 const char *First, 21 va_list argp) { 22 SmallVector<IdentifierInfo*, 10> II; 23 II.push_back(&Ctx.Idents.get(First)); 24 25 while (const char *s = va_arg(argp, const char *)) 26 II.push_back(&Ctx.Idents.get(s)); 27 28 return Ctx.Selectors.getSelector(II.size(), &II[0]); 29 } 30 31 static inline Selector getKeywordSelector(ASTContext &Ctx, va_list argp) { 32 const char *First = va_arg(argp, const char *); 33 assert(First && "keyword selectors must have at least one argument"); 34 return getKeywordSelectorImpl(Ctx, First, argp); 35 } 36 37 END_WITH_NULL 38 static inline Selector getKeywordSelector(ASTContext &Ctx, 39 const char *First, ...) { 40 va_list argp; 41 va_start(argp, First); 42 Selector result = getKeywordSelectorImpl(Ctx, First, argp); 43 va_end(argp); 44 return result; 45 } 46 47 END_WITH_NULL 48 static inline void lazyInitKeywordSelector(Selector &Sel, ASTContext &Ctx, 49 const char *First, ...) { 50 if (!Sel.isNull()) 51 return; 52 va_list argp; 53 va_start(argp, First); 54 Sel = getKeywordSelectorImpl(Ctx, First, argp); 55 va_end(argp); 56 } 57 58 static inline void lazyInitNullarySelector(Selector &Sel, ASTContext &Ctx, 59 const char *Name) { 60 if (!Sel.isNull()) 61 return; 62 Sel = GetNullarySelector(Name, Ctx); 63 } 64 65 } // end namespace ento 66 } // end namespace clang 67 68 #endif 69
