47 lines · cpp
1//===----------------------------------------------------------------------===//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-exception6//7//===----------------------------------------------------------------------===//8 9#include "NoInternalDependenciesCheck.h"10#include "AbseilMatcher.h"11#include "clang/ASTMatchers/ASTMatchFinder.h"12 13using namespace clang::ast_matchers;14 15namespace clang::tidy::abseil {16 17void NoInternalDependenciesCheck::registerMatchers(MatchFinder *Finder) {18 // TODO: refactor matcher to be configurable or just match on any internal19 // access from outside the enclosing namespace.20 21 Finder->addMatcher(22 nestedNameSpecifierLoc(loc(specifiesNamespace(namespaceDecl(23 matchesName("internal"),24 hasParent(namespaceDecl(hasName("absl")))))),25 unless(isInAbseilFile()))26 .bind("InternalDep"),27 this);28}29 30void NoInternalDependenciesCheck::check(31 const MatchFinder::MatchResult &Result) {32 const auto *InternalDependency =33 Result.Nodes.getNodeAs<NestedNameSpecifierLoc>("InternalDep");34 35 const SourceLocation LocAtFault =36 Result.SourceManager->getSpellingLoc(InternalDependency->getBeginLoc());37 38 if (!LocAtFault.isValid())39 return;40 41 diag(LocAtFault,42 "do not reference any 'internal' namespaces; those implementation "43 "details are reserved to Abseil");44}45 46} // namespace clang::tidy::abseil47