clang-tools  16.0.0git
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 
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  Finder->addMatcher(
21  memberExpr(hasObjectExpression(hasType(recordDecl(isUnion()))))
22  .bind("expr"),
23  this);
24 }
25 
26 void ProTypeUnionAccessCheck::check(const MatchFinder::MatchResult &Result) {
27  const auto *Matched = Result.Nodes.getNodeAs<MemberExpr>("expr");
28  diag(Matched->getMemberLoc(),
29  "do not access members of unions; use (boost::)variant instead");
30 }
31 
32 } // namespace cppcoreguidelines
33 } // namespace tidy
34 } // namespace clang
ProTypeUnionAccessCheck.h
clang::ast_matchers
Definition: AbseilMatcher.h:14
clang
===– Representation.cpp - ClangDoc Representation --------—*- C++ -*-===//
Definition: ApplyReplacements.h:27
clang::clangd::check
bool check(llvm::StringRef File, const ThreadsafeFS &TFS, const ClangdLSPServer::Options &Opts)
Definition: Check.cpp:415