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//===--- UnnamedNamespaceInHeaderCheck.cpp - clang-tidy ---------*- C++ -*-===//
//
// 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 "UnnamedNamespaceInHeaderCheck.h"
#include "clang/ASTMatchers/ASTMatchFinder.h"
#include "clang/ASTMatchers/ASTMatchers.h"
using namespace clang::ast_matchers;
namespace clang::tidy::google::build {
UnnamedNamespaceInHeaderCheck::UnnamedNamespaceInHeaderCheck(
StringRef Name, ClangTidyContext *Context)
: ClangTidyCheck(Name, Context),
HeaderFileExtensions(Context->getHeaderFileExtensions()) {}
void UnnamedNamespaceInHeaderCheck::registerMatchers(
ast_matchers::MatchFinder *Finder) {
Finder->addMatcher(namespaceDecl(isAnonymous()).bind("anonymousNamespace"),
this);
}
void UnnamedNamespaceInHeaderCheck::check(
const MatchFinder::MatchResult &Result) {
const auto *N = Result.Nodes.getNodeAs<NamespaceDecl>("anonymousNamespace");
SourceLocation Loc = N->getBeginLoc();
if (!Loc.isValid())
return;
if (utils::isPresumedLocInHeaderFile(Loc, *Result.SourceManager,
HeaderFileExtensions))
diag(Loc, "do not use unnamed namespaces in header files");
}
} // namespace clang::tidy::google::build
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