clang-tools  11.0.0
DontModifyStdNamespaceCheck.cpp
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1 //===--- DontModifyStdNamespaceCheck.cpp - clang-tidy----------------------===//
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/AST/ASTContext.h"
11 #include "clang/ASTMatchers/ASTMatchFinder.h"
12 
13 using namespace clang::ast_matchers;
14 
15 namespace clang {
16 namespace tidy {
17 namespace cert {
18 
19 void DontModifyStdNamespaceCheck::registerMatchers(MatchFinder *Finder) {
20  Finder->addMatcher(
21  namespaceDecl(unless(isExpansionInSystemHeader()),
22  hasAnyName("std", "posix"),
23  has(decl(unless(anyOf(
24  functionDecl(isExplicitTemplateSpecialization()),
25  cxxRecordDecl(isExplicitTemplateSpecialization()))))))
26  .bind("nmspc"),
27  this);
28 }
29 
30 void DontModifyStdNamespaceCheck::check(
31  const MatchFinder::MatchResult &Result) {
32  const auto *N = Result.Nodes.getNodeAs<NamespaceDecl>("nmspc");
33 
34  // Only consider top level namespaces.
35  if (N->getParent() != Result.Context->getTranslationUnitDecl())
36  return;
37 
38  diag(N->getLocation(),
39  "modification of %0 namespace can result in undefined behavior")
40  << N;
41 }
42 
43 } // namespace cert
44 } // namespace tidy
45 } // namespace clang
clang::ast_matchers
Definition: AbseilMatcher.h:14
clang
===– Representation.cpp - ClangDoc Representation --------—*- C++ -*-===//
Definition: ApplyReplacements.h:27
clang::clangd::isExplicitTemplateSpecialization
bool isExplicitTemplateSpecialization(const NamedDecl *D)
Indicates if D is an explicit template specialization, e.g.
Definition: AST.cpp:152
DontModifyStdNamespaceCheck.h