clang-tools 10.0.0

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
9 #include "DontModifyStdNamespaceCheck.h"
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 if (!getLangOpts().CPlusPlus)
21 return;
22
23 Finder->addMatcher(
24 namespaceDecl(unless(isExpansionInSystemHeader()),
25 anyOf(hasName("std"), hasName("posix")),
26 has(decl(unless(anyOf(
27 functionDecl(isExplicitTemplateSpecialization()),
28 cxxRecordDecl(isExplicitTemplateSpecialization()))))))
29 .bind("nmspc"),
30 this);
31 }
32
33 void DontModifyStdNamespaceCheck::check(
34 const MatchFinder::MatchResult &Result) {
35 const auto *N = Result.Nodes.getNodeAs<NamespaceDecl>("nmspc");
36
37 // Only consider top level namespaces.
38 if (N->getParent() != Result.Context->getTranslationUnitDecl())
39 return;
40
41 diag(N->getLocation(),
42 "modification of %0 namespace can result in undefined behavior")
43 << N;
44 }
45
46 } // namespace cert
47 } // namespace tidy
48 } // namespace clang
clang::ast_matchers
Definition: AbseilMatcher.h:14
clang::clangd::isExplicitTemplateSpecialization
bool isExplicitTemplateSpecialization(const NamedDecl *D)
Indicates if D is an explicit template specialization, e.g.
Definition: AST.cpp:153
clang
===– Representation.cpp - ClangDoc Representation --------—*- C++ -*-===//
Definition: ApplyReplacements.h:27
DontModifyStdNamespaceCheck.h