clang-tools 20.0.0git
OverloadedOperatorCheck.cpp
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1//===--- OverloadedOperatorCheck.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
11using namespace clang::ast_matchers;
12
13namespace clang::tidy::fuchsia {
14
15namespace {
16AST_MATCHER(FunctionDecl, isFuchsiaOverloadedOperator) {
17 if (const auto *CXXMethodNode = dyn_cast<CXXMethodDecl>(&Node)) {
18 if (CXXMethodNode->isCopyAssignmentOperator() ||
19 CXXMethodNode->isMoveAssignmentOperator())
20 return false;
21 if (CXXMethodNode->getParent()->isLambda())
22 return false;
23 }
24 return Node.isOverloadedOperator();
25}
26} // namespace
27
29 Finder->addMatcher(functionDecl(isFuchsiaOverloadedOperator()).bind("decl"),
30 this);
31}
32
33void OverloadedOperatorCheck::check(const MatchFinder::MatchResult &Result) {
34 const auto *D = Result.Nodes.getNodeAs<FunctionDecl>("decl");
35 assert(D && "No FunctionDecl captured!");
36
37 SourceLocation Loc = D->getBeginLoc();
38 if (Loc.isValid())
39 diag(Loc, "overloading %0 is disallowed") << D;
40}
41
42} // namespace clang::tidy::fuchsia
SourceLocation Loc
::clang::DynTypedNode Node
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(Decl, declHasNoReturnAttr)
matches a Decl if it has a "no return" attribute of any kind