1 //===--- NoEscapeCheck.h - clang-tidy ---------------------------*- 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_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_NOESCAPECHECK_H
10 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_NOESCAPECHECK_H
11 
12 #include "../ClangTidyCheck.h"
13 
14 namespace clang {
15 namespace tidy {
16 namespace bugprone {
17 
18 /// Block arguments in `dispatch_async()` and `dispatch_after()` are guaranteed
19 /// to escape. If those blocks capture any pointers with the `noescape`
20 /// attribute, then we warn the user of their error.
21 ///
22 /// For the user-facing documentation see:
23 /// http://clang.llvm.org/extra/clang-tidy/checks/bugprone-no-escape.html
24 class NoEscapeCheck : public ClangTidyCheck {
25 public:
NoEscapeCheck(StringRef Name,ClangTidyContext * Context)26   NoEscapeCheck(StringRef Name, ClangTidyContext *Context)
27       : ClangTidyCheck(Name, Context) {}
isLanguageVersionSupported(const LangOptions & LangOpts)28   bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {
29     return LangOpts.Blocks;
30   }
31   void registerMatchers(ast_matchers::MatchFinder *Finder) override;
32   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
33 };
34 
35 } // namespace bugprone
36 } // namespace tidy
37 } // namespace clang
38 
39 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_NOESCAPECHECK_H
40