| //===--- ConcatNestedNamespacesCheck.h - clang-tidy--------------*- C++ -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_CONCATNESTEDNAMESPACESCHECK_H |
| #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_CONCATNESTEDNAMESPACESCHECK_H |
| |
| #include "../ClangTidyCheck.h" |
| #include "llvm/ADT/SmallString.h" |
| #include "llvm/ADT/SmallVector.h" |
| |
| namespace clang::tidy::modernize { |
| |
| using NamespaceName = llvm::SmallString<40>; |
| |
| class NS : public llvm::SmallVector<const NamespaceDecl *, 6> { |
| public: |
| std::optional<SourceRange> |
| getCleanedNamespaceFrontRange(const SourceManager &SM, |
| const LangOptions &LangOpts) const; |
| SourceRange getReplacedNamespaceFrontRange() const; |
| SourceRange getNamespaceBackRange(const SourceManager &SM, |
| const LangOptions &LangOpts) const; |
| SourceRange getDefaultNamespaceBackRange() const; |
| void appendName(NamespaceName &Str) const; |
| void appendCloseComment(NamespaceName &Str) const; |
| }; |
| |
| class ConcatNestedNamespacesCheck : public ClangTidyCheck { |
| public: |
| ConcatNestedNamespacesCheck(StringRef Name, ClangTidyContext *Context) |
| : ClangTidyCheck(Name, Context) {} |
| bool unsupportedNamespace(const NamespaceDecl &ND, bool IsChild) const; |
| bool singleNamedNamespaceChild(const NamespaceDecl &ND) const; |
| bool isLanguageVersionSupported(const LangOptions &LangOpts) const override { |
| return LangOpts.CPlusPlus17; |
| } |
| void registerMatchers(ast_matchers::MatchFinder *Finder) override; |
| void check(const ast_matchers::MatchFinder::MatchResult &Result) override; |
| |
| private: |
| using NamespaceContextVec = llvm::SmallVector<NS, 6>; |
| |
| void reportDiagnostic(const SourceManager &SM, const LangOptions &LangOpts); |
| NamespaceContextVec Namespaces; |
| }; |
| } // namespace clang::tidy::modernize |
| |
| #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_CONCATNESTEDNAMESPACESCHECK_H |