1 //===--- NoNamespaceCheck.cpp - clang-tidy---------------------------------===// 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 "NoNamespaceCheck.h" 10 #include "AbseilMatcher.h" 11 #include "clang/AST/ASTContext.h" 12 #include "clang/ASTMatchers/ASTMatchFinder.h" 13 14 using namespace clang::ast_matchers; 15 16 namespace clang::tidy::abseil { 17 registerMatchers(MatchFinder * Finder)18void NoNamespaceCheck::registerMatchers(MatchFinder *Finder) { 19 Finder->addMatcher( 20 namespaceDecl(hasName("::absl"), unless(isInAbseilFile())) 21 .bind("abslNamespace"), 22 this); 23 } 24 check(const MatchFinder::MatchResult & Result)25void NoNamespaceCheck::check(const MatchFinder::MatchResult &Result) { 26 const auto *AbslNamespaceDecl = 27 Result.Nodes.getNodeAs<NamespaceDecl>("abslNamespace"); 28 29 diag(AbslNamespaceDecl->getLocation(), 30 "namespace 'absl' is reserved for implementation of the Abseil library " 31 "and should not be opened in user code"); 32 } 33 34 } // namespace clang::tidy::abseil 35