| 1 | //===--- UnnamedNamespaceInHeaderCheck.cpp - 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 | #include "UnnamedNamespaceInHeaderCheck.h" |
| 10 | #include "clang/AST/ASTContext.h" |
| 11 | #include "clang/ASTMatchers/ASTMatchFinder.h" |
| 12 | #include "clang/ASTMatchers/ASTMatchers.h" |
| 13 | |
| 14 | using namespace clang::ast_matchers; |
| 15 | |
| 16 | namespace clang::tidy::google::build { |
| 17 | |
| 18 | UnnamedNamespaceInHeaderCheck::UnnamedNamespaceInHeaderCheck( |
| 19 | StringRef Name, ClangTidyContext *Context) |
| 20 | : ClangTidyCheck(Name, Context), |
| 21 | HeaderFileExtensions(Context->getHeaderFileExtensions()) {} |
| 22 | |
| 23 | void UnnamedNamespaceInHeaderCheck::registerMatchers( |
| 24 | ast_matchers::MatchFinder *Finder) { |
| 25 | Finder->addMatcher(NodeMatch: namespaceDecl(isAnonymous()).bind(ID: "anonymousNamespace"), |
| 26 | Action: this); |
| 27 | } |
| 28 | |
| 29 | void UnnamedNamespaceInHeaderCheck::check( |
| 30 | const MatchFinder::MatchResult &Result) { |
| 31 | const auto *N = Result.Nodes.getNodeAs<NamespaceDecl>(ID: "anonymousNamespace"); |
| 32 | SourceLocation Loc = N->getBeginLoc(); |
| 33 | if (!Loc.isValid()) |
| 34 | return; |
| 35 | |
| 36 | if (utils::isPresumedLocInHeaderFile(Loc, SM&: *Result.SourceManager, |
| 37 | HeaderFileExtensions)) |
| 38 | diag(Loc, Description: "do not use unnamed namespaces in header files"); |
| 39 | } |
| 40 | |
| 41 | } // namespace clang::tidy::google::build |
| 42 |