1 //===--- UseAnonymousNamespaceCheck.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_MISC_USEANONYMOUSNAMESPACECHECK_H
10 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_USEANONYMOUSNAMESPACECHECK_H
11 
12 #include "../ClangTidyCheck.h"
13 #include "../utils/FileExtensionsUtils.h"
14 
15 namespace clang::tidy::misc {
16 
17 /// Warns when using 'static' functions or variables at global scope, and
18 /// suggests moving them to an anonymous namespace.
19 ///
20 /// The check supports these options:
21 ///   - `HeaderFileExtensions`: a semicolon-separated list of filename
22 ///     extensions of header files (The filename extension should not contain
23 ///     "." prefix). ";h;hh;hpp;hxx" by default.
24 ///
25 ///     For extension-less header files, using an empty string or leaving an
26 ///     empty string between ";" if there are other filename extensions.
27 ///
28 /// For the user-facing documentation see:
29 /// http://clang.llvm.org/extra/clang-tidy/checks/misc/use-anonymous-namespace.html
30 class UseAnonymousNamespaceCheck : public ClangTidyCheck {
31 public:
32   UseAnonymousNamespaceCheck(StringRef Name, ClangTidyContext *Context);
isLanguageVersionSupported(const LangOptions & LangOpts)33   bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {
34     return LangOpts.CPlusPlus;
35   }
36   void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
37   void registerMatchers(ast_matchers::MatchFinder *Finder) override;
38   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
39 
40 private:
41   StringRef RawStringHeaderFileExtensions;
42   FileExtensionsSet HeaderFileExtensions;
43 };
44 
45 } // namespace clang::tidy::misc
46 
47 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_USEANONYMOUSNAMESPACECHECK_H
48