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//===--- NoInternalDependenciesCheck.cpp - clang-tidy----------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "NoInternalDependenciesCheck.h"
#include "AbseilMatcher.h"
#include "clang/AST/ASTContext.h"
#include "clang/ASTMatchers/ASTMatchFinder.h"
using namespace clang::ast_matchers;
namespace clang {
namespace tidy {
namespace abseil {
void NoInternalDependenciesCheck::registerMatchers(MatchFinder *Finder) {
// TODO: refactor matcher to be configurable or just match on any internal
// access from outside the enclosing namespace.
Finder->addMatcher(
nestedNameSpecifierLoc(loc(specifiesNamespace(namespaceDecl(
matchesName("internal"),
hasParent(namespaceDecl(hasName("absl")))))),
unless(isInAbseilFile()))
.bind("InternalDep"),
this);
}
void NoInternalDependenciesCheck::check(const MatchFinder::MatchResult &Result) {
const auto *InternalDependency =
Result.Nodes.getNodeAs<NestedNameSpecifierLoc>("InternalDep");
SourceLocation LocAtFault =
Result.SourceManager->getSpellingLoc(InternalDependency->getBeginLoc());
if (!LocAtFault.isValid())
return;
diag(LocAtFault,
"do not reference any 'internal' namespaces; those implementation "
"details are reserved to Abseil");
}
} // namespace abseil
} // namespace tidy
} // namespace clang
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