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_ANALYSIS_SELECTOREXTRAS_H |
10 | #define |
11 | |
12 | #include "clang/AST/ASTContext.h" |
13 | |
14 | namespace clang { |
15 | |
16 | template <typename... IdentifierInfos> |
17 | static inline Selector getKeywordSelector(ASTContext &Ctx, |
18 | IdentifierInfos *... IIs) { |
19 | static_assert(sizeof...(IdentifierInfos) > 0, |
20 | "keyword selectors must have at least one argument" ); |
21 | SmallVector<IdentifierInfo *, 10> II({&Ctx.Idents.get(IIs)...}); |
22 | |
23 | return Ctx.Selectors.getSelector(NumArgs: II.size(), IIV: &II[0]); |
24 | } |
25 | |
26 | template <typename... IdentifierInfos> |
27 | static 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 | |