clang-tools 22.0.0git
UnnamedNamespaceInHeaderCheck.cpp
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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-exception
6//
7//===----------------------------------------------------------------------===//
8
10#include "clang/ASTMatchers/ASTMatchFinder.h"
11#include "clang/ASTMatchers/ASTMatchers.h"
12
13using namespace clang::ast_matchers;
14
16
18 StringRef Name, ClangTidyContext *Context)
19 : ClangTidyCheck(Name, Context),
20 HeaderFileExtensions(Context->getHeaderFileExtensions()) {}
21
23 ast_matchers::MatchFinder *Finder) {
24 Finder->addMatcher(namespaceDecl(isAnonymous()).bind("anonymousNamespace"),
25 this);
26}
27
29 const MatchFinder::MatchResult &Result) {
30 const auto *N = Result.Nodes.getNodeAs<NamespaceDecl>("anonymousNamespace");
31 SourceLocation Loc = N->getBeginLoc();
32 if (!Loc.isValid())
33 return;
34
35 if (utils::isPresumedLocInHeaderFile(Loc, *Result.SourceManager,
36 HeaderFileExtensions))
37 diag(Loc, "do not use unnamed namespaces in header files");
38}
39
40} // namespace clang::tidy::google::build
Every ClangTidyCheck reports errors through a DiagnosticsEngine provided by this context.
UnnamedNamespaceInHeaderCheck(StringRef Name, ClangTidyContext *Context)
void check(const ast_matchers::MatchFinder::MatchResult &Result) override
void registerMatchers(ast_matchers::MatchFinder *Finder) override
bool isPresumedLocInHeaderFile(SourceLocation Loc, SourceManager &SM, const FileExtensionsSet &HeaderFileExtensions)
Checks whether presumed location of Loc is in header file.