1 //===--- AvoidConstOrRefDataMembersCheck.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 "AvoidConstOrRefDataMembersCheck.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 AvoidConstOrRefDataMembersCheck::registerMatchers(MatchFinder *Finder) {
20   Finder->addMatcher(
21       fieldDecl(hasType(hasCanonicalType(referenceType()))).bind("ref"), this);
22   Finder->addMatcher(
23       fieldDecl(hasType(qualType(isConstQualified()))).bind("const"), this);
24 }
25 
26 void AvoidConstOrRefDataMembersCheck::check(
27     const MatchFinder::MatchResult &Result) {
28   if (const auto *MatchedDecl = Result.Nodes.getNodeAs<FieldDecl>("ref"))
29     diag(MatchedDecl->getLocation(), "member %0 of type %1 is a reference")
30         << MatchedDecl << MatchedDecl->getType();
31   if (const auto *MatchedDecl = Result.Nodes.getNodeAs<FieldDecl>("const"))
32     diag(MatchedDecl->getLocation(), "member %0 of type %1 is const qualified")
33         << MatchedDecl << MatchedDecl->getType();
34 }
35 
36 } // namespace cppcoreguidelines
37 } // namespace tidy
38 } // namespace clang
39