| //=== 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" |
| #include <cstdarg> |
| |
| namespace clang { |
| namespace ento { |
| |
| static inline Selector getKeywordSelectorImpl(ASTContext &Ctx, |
| const char *First, |
| va_list argp) { |
| SmallVector<IdentifierInfo*, 10> II; |
| II.push_back(&Ctx.Idents.get(First)); |
| |
| while (const char *s = va_arg(argp, const char *)) |
| II.push_back(&Ctx.Idents.get(s)); |
| |
| return Ctx.Selectors.getSelector(II.size(), &II[0]); |
| } |
| |
| static inline Selector getKeywordSelector(ASTContext &Ctx, va_list argp) { |
| const char *First = va_arg(argp, const char *); |
| assert(First && "keyword selectors must have at least one argument"); |
| return getKeywordSelectorImpl(Ctx, First, argp); |
| } |
| |
| LLVM_END_WITH_NULL |
| static inline Selector getKeywordSelector(ASTContext &Ctx, |
| const char *First, ...) { |
| va_list argp; |
| va_start(argp, First); |
| Selector result = getKeywordSelectorImpl(Ctx, First, argp); |
| va_end(argp); |
| return result; |
| } |
| |
| LLVM_END_WITH_NULL |
| static inline void lazyInitKeywordSelector(Selector &Sel, ASTContext &Ctx, |
| const char *First, ...) { |
| if (!Sel.isNull()) |
| return; |
| va_list argp; |
| va_start(argp, First); |
| Sel = getKeywordSelectorImpl(Ctx, First, argp); |
| va_end(argp); |
| } |
| |
| 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 |