1 //===--- ProTypeConstCastCheck.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 "ProTypeConstCastCheck.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 
registerMatchers(MatchFinder * Finder)19 void ProTypeConstCastCheck::registerMatchers(MatchFinder *Finder) {
20   if (!getLangOpts().CPlusPlus)
21     return;
22 
23   Finder->addMatcher(cxxConstCastExpr().bind("cast"), this);
24 }
25 
check(const MatchFinder::MatchResult & Result)26 void ProTypeConstCastCheck::check(const MatchFinder::MatchResult &Result) {
27   const auto *MatchedCast = Result.Nodes.getNodeAs<CXXConstCastExpr>("cast");
28   diag(MatchedCast->getOperatorLoc(), "do not use const_cast");
29 }
30 
31 } // namespace cppcoreguidelines
32 } // namespace tidy
33 } // namespace clang
34