| //===--- UnnamedNamespaceInHeaderCheck.cpp - clang-tidy ---------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "UnnamedNamespaceInHeaderCheck.h" |
| #include "clang/ASTMatchers/ASTMatchFinder.h" |
| #include "clang/ASTMatchers/ASTMatchers.h" |
| #include "clang/AST/ASTContext.h" |
| |
| using namespace clang::ast_matchers; |
| |
| namespace clang { |
| namespace ast_matchers { |
| AST_MATCHER(NamespaceDecl, isAnonymousNamespace) { |
| return Node.isAnonymousNamespace(); |
| } |
| } // namespace ast_matchers |
| |
| namespace tidy { |
| namespace build { |
| |
| void UnnamedNamespaceInHeaderCheck::registerMatchers( |
| ast_matchers::MatchFinder *Finder) { |
| Finder->addMatcher( |
| namespaceDecl(isAnonymousNamespace()).bind("anonymousNamespace"), this); |
| } |
| |
| void |
| UnnamedNamespaceInHeaderCheck::check(const MatchFinder::MatchResult &Result) { |
| SourceManager *SM = Result.SourceManager; |
| const auto *N = Result.Nodes.getNodeAs<NamespaceDecl>("anonymousNamespace"); |
| SourceLocation Loc = N->getLocStart(); |
| if (!Loc.isValid()) |
| return; |
| |
| // Look if we're inside a header, check for common suffixes only. |
| // TODO: Allow configuring the set of file extensions. |
| StringRef FileName = SM->getPresumedLoc(Loc).getFilename(); |
| if (FileName.endswith(".h") || FileName.endswith(".hh") || |
| FileName.endswith(".hpp") || FileName.endswith(".hxx")) |
| diag(Loc, "do not use unnamed namespaces in header files."); |
| } |
| |
| } // namespace build |
| } // namespace tidy |
| } // namespace clang |