clang-tools 17.0.0git
AvoidConstOrRefDataMembersCheck.cpp
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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
10#include "clang/AST/ASTContext.h"
11#include "clang/ASTMatchers/ASTMatchFinder.h"
12
13using namespace clang::ast_matchers;
14
16namespace {
17
18AST_MATCHER(FieldDecl, isMemberOfLambda) {
19 return Node.getParent()->isLambda();
20}
21
22} // namespace
23
25 Finder->addMatcher(fieldDecl(unless(isMemberOfLambda()),
26 hasType(hasCanonicalType(referenceType())))
27 .bind("ref"),
28 this);
29 Finder->addMatcher(fieldDecl(unless(isMemberOfLambda()),
30 hasType(qualType(isConstQualified())))
31 .bind("const"),
32 this);
33}
34
36 const MatchFinder::MatchResult &Result) {
37 if (const auto *MatchedDecl = Result.Nodes.getNodeAs<FieldDecl>("ref"))
38 diag(MatchedDecl->getLocation(), "member %0 of type %1 is a reference")
39 << MatchedDecl << MatchedDecl->getType();
40 if (const auto *MatchedDecl = Result.Nodes.getNodeAs<FieldDecl>("const"))
41 diag(MatchedDecl->getLocation(), "member %0 of type %1 is const qualified")
42 << MatchedDecl << MatchedDecl->getType();
43}
44
45} // namespace clang::tidy::cppcoreguidelines
DiagnosticBuilder diag(SourceLocation Loc, StringRef Description, DiagnosticIDs::Level Level=DiagnosticIDs::Warning)
Add a diagnostic with the check's name.
void check(const ast_matchers::MatchFinder::MatchResult &Result) override
ClangTidyChecks that register ASTMatchers should do the actual work in here.
void registerMatchers(ast_matchers::MatchFinder *Finder) override
Override this to register AST matchers with Finder.
AST_MATCHER(FieldDecl, hasIntBitwidth)