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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#include <memory>
#include <cassert>
#include <string>
#include <iostream>
#include <fstream>
#include <set>
#include "plugin.hxx"
/**
Check for calls to operator== on a std::container< std::unique_ptr >, which is not useful,
because std::container will compare the pointers so it is never true
*/
namespace {
class PtrVector:
public RecursiveASTVisitor<PtrVector>, public loplugin::Plugin
{
public:
explicit PtrVector(loplugin::InstantiationData const & data): Plugin(data)
{}
virtual void run() override
{
TraverseDecl(compiler.getASTContext().getTranslationUnitDecl());
}
bool shouldVisitTemplateInstantiations () const { return true; }
bool VisitCXXOperatorCallExpr(const CXXOperatorCallExpr* );
};
bool PtrVector::VisitCXXOperatorCallExpr(const CXXOperatorCallExpr* expr)
{
if (ignoreLocation(expr)) {
return true;
}
if (expr->getOperator() != clang::OverloadedOperatorKind::OO_EqualEqual
&& expr->getOperator() != clang::OverloadedOperatorKind::OO_ExclaimEqual)
{
return true;
}
if (isa<CXXNullPtrLiteralExpr>(expr->getArg(1))) {
return true;
}
const Expr* argExpr = expr->getArg(0);
std::string s = argExpr->getType().getDesugaredType(compiler.getASTContext()).getAsString();
if (s.find("iterator") != std::string::npos) {
return true;
}
if (s.find("array") == std::string::npos && s.find("deque") == std::string::npos
&& s.find("list") == std::string::npos && s.find("vector") == std::string::npos
&& s.find("set") == std::string::npos && s.find("map") == std::string::npos
&& s.find("stack") == std::string::npos && s.find("queue") == std::string::npos)
{
return true;
}
if (s.find("unique_ptr") != std::string::npos) {
expr->getArg(1)->dump();
report(
DiagnosticsEngine::Warning,
"do not call operator== on a std container containing a unique_ptr " + s,
expr->getExprLoc());
}
return true;
}
loplugin::Plugin::Registration< PtrVector > X("ptrvector");
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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