forked from OSchip/llvm-project
50 lines
1.6 KiB
C++
50 lines
1.6 KiB
C++
//===--- ImplementationInNamespaceCheck.cpp - clang-tidy ------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "ImplementationInNamespaceCheck.h"
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#include "clang/AST/ASTContext.h"
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#include "clang/ASTMatchers/ASTMatchFinder.h"
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using namespace clang::ast_matchers;
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namespace clang {
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namespace tidy {
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namespace llvm_libc {
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const static StringRef RequiredNamespace = "__llvm_libc";
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void ImplementationInNamespaceCheck::registerMatchers(MatchFinder *Finder) {
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Finder->addMatcher(
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decl(hasParent(translationUnitDecl()), unless(linkageSpecDecl()))
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.bind("child_of_translation_unit"),
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this);
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}
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void ImplementationInNamespaceCheck::check(
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const MatchFinder::MatchResult &Result) {
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const auto *MatchedDecl =
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Result.Nodes.getNodeAs<Decl>("child_of_translation_unit");
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if (!Result.SourceManager->isInMainFile(MatchedDecl->getLocation()))
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return;
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if (const auto *NS = dyn_cast<NamespaceDecl>(MatchedDecl)) {
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if (NS->getName() != RequiredNamespace) {
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diag(NS->getLocation(), "'%0' needs to be the outermost namespace")
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<< RequiredNamespace;
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}
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return;
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}
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diag(MatchedDecl->getLocation(),
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"declaration must be declared within the '%0' namespace")
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<< RequiredNamespace;
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return;
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}
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} // namespace llvm_libc
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} // namespace tidy
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} // namespace clang
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