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 { 17 namespace tidy { 18 namespace abseil { 19 registerMatchers(MatchFinder * Finder)20void NoNamespaceCheck::registerMatchers(MatchFinder *Finder) { 21 Finder->addMatcher( 22 namespaceDecl(hasName("::absl"), unless(isInAbseilFile())) 23 .bind("abslNamespace"), 24 this); 25 } 26 check(const MatchFinder::MatchResult & Result)27void NoNamespaceCheck::check(const MatchFinder::MatchResult &Result) { 28 const auto *abslNamespaceDecl = 29 Result.Nodes.getNodeAs<NamespaceDecl>("abslNamespace"); 30 31 diag(abslNamespaceDecl->getLocation(), 32 "namespace 'absl' is reserved for implementation of the Abseil library " 33 "and should not be opened in user code"); 34 } 35 36 } // namespace abseil 37 } // namespace tidy 38 } // namespace clang 39