| 1 | //===--- ConcatNestedNamespacesCheck.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_MODERNIZE_CONCATNESTEDNAMESPACESCHECK_H |
| 10 | #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_CONCATNESTEDNAMESPACESCHECK_H |
| 11 | |
| 12 | #include "../ClangTidyCheck.h" |
| 13 | #include "llvm/ADT/SmallString.h" |
| 14 | #include "llvm/ADT/SmallVector.h" |
| 15 | |
| 16 | namespace clang::tidy::modernize { |
| 17 | |
| 18 | using NamespaceName = llvm::SmallString<40>; |
| 19 | |
| 20 | class NS : public llvm::SmallVector<const NamespaceDecl *, 6> { |
| 21 | public: |
| 22 | std::optional<SourceRange> |
| 23 | getCleanedNamespaceFrontRange(const SourceManager &SM, |
| 24 | const LangOptions &LangOpts) const; |
| 25 | SourceRange getReplacedNamespaceFrontRange() const; |
| 26 | SourceRange getNamespaceBackRange(const SourceManager &SM, |
| 27 | const LangOptions &LangOpts) const; |
| 28 | SourceRange getDefaultNamespaceBackRange() const; |
| 29 | void appendName(NamespaceName &Str) const; |
| 30 | void appendCloseComment(NamespaceName &Str) const; |
| 31 | }; |
| 32 | |
| 33 | class ConcatNestedNamespacesCheck : public ClangTidyCheck { |
| 34 | public: |
| 35 | ConcatNestedNamespacesCheck(StringRef Name, ClangTidyContext *Context) |
| 36 | : ClangTidyCheck(Name, Context) {} |
| 37 | bool unsupportedNamespace(const NamespaceDecl &ND, bool IsChild) const; |
| 38 | bool singleNamedNamespaceChild(const NamespaceDecl &ND) const; |
| 39 | bool isLanguageVersionSupported(const LangOptions &LangOpts) const override { |
| 40 | return LangOpts.CPlusPlus17; |
| 41 | } |
| 42 | void registerMatchers(ast_matchers::MatchFinder *Finder) override; |
| 43 | void check(const ast_matchers::MatchFinder::MatchResult &Result) override; |
| 44 | |
| 45 | private: |
| 46 | using NamespaceContextVec = llvm::SmallVector<NS, 6>; |
| 47 | |
| 48 | void reportDiagnostic(const SourceManager &SM, const LangOptions &LangOpts); |
| 49 | NamespaceContextVec Namespaces; |
| 50 | }; |
| 51 | } // namespace clang::tidy::modernize |
| 52 | |
| 53 | #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_CONCATNESTEDNAMESPACESCHECK_H |
| 54 |