clang-tools 10.0.0

ProTypeUnionAccessCheck.cpp
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1 //===--- ProTypeUnionAccessCheck.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 "ProTypeUnionAccessCheck.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 cppcoreguidelines {
18
19 void ProTypeUnionAccessCheck::registerMatchers(MatchFinder *Finder) {
20 if (!getLangOpts().CPlusPlus)
21 return;
22
23 Finder->addMatcher(
24 memberExpr(hasObjectExpression(hasType(recordDecl(isUnion()))))
25 .bind("expr"),
26 this);
27 }
28
29 void ProTypeUnionAccessCheck::check(const MatchFinder::MatchResult &Result) {
30 const auto *Matched = Result.Nodes.getNodeAs<MemberExpr>("expr");
31 diag(Matched->getMemberLoc(),
32 "do not access members of unions; use (boost::)variant instead");
33 }
34
35 } // namespace cppcoreguidelines
36 } // namespace tidy
37 } // namespace clang
clang::ast_matchers
Definition: AbseilMatcher.h:14
ProTypeUnionAccessCheck.h
clang
===– Representation.cpp - ClangDoc Representation --------—*- C++ -*-===//
Definition: ApplyReplacements.h:27