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//===--- OverloadedUnaryAndCheck.cpp - clang-tidy ---------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "OverloadedUnaryAndCheck.h"
#include "clang/AST/ASTContext.h"
#include "clang/ASTMatchers/ASTMatchFinder.h"
#include "clang/ASTMatchers/ASTMatchers.h"
using namespace clang::ast_matchers;
namespace clang::tidy::google::runtime {
void OverloadedUnaryAndCheck::registerMatchers(
ast_matchers::MatchFinder *Finder) {
// Match unary methods that overload operator&.
Finder->addMatcher(
cxxMethodDecl(parameterCountIs(0), hasOverloadedOperatorName("&"))
.bind("overload"),
this);
// Also match freestanding unary operator& overloads. Be careful not to match
// binary methods.
Finder->addMatcher(functionDecl(unless(cxxMethodDecl()), parameterCountIs(1),
hasOverloadedOperatorName("&"))
.bind("overload"),
this);
}
void OverloadedUnaryAndCheck::check(const MatchFinder::MatchResult &Result) {
const auto *Decl = Result.Nodes.getNodeAs<FunctionDecl>("overload");
diag(Decl->getBeginLoc(),
"do not overload unary operator&, it is dangerous.");
}
} // namespace clang::tidy::google::runtime
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