9f4d23c151
by checking if the current namespace decl is in our code, so we have to scan less stuff, which results in a 10% perf improvement for me Change-Id: Idf0e30d57b6d0dcd13daa9ed679c28b9d233d387 Reviewed-on: https://gerrit.libreoffice.org/58942 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
92 lines
2.7 KiB
C++
92 lines
2.7 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#include <memory>
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#include <cassert>
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#include <string>
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#include <iostream>
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#include <fstream>
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#include <set>
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#include "plugin.hxx"
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/**
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Find calls to "delete x" where x is a field on an object.
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Should rather be using std::unique_ptr
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*/
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namespace {
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class AutoMem:
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public loplugin::FilteringPlugin<AutoMem>
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{
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public:
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explicit AutoMem(loplugin::InstantiationData const & data): FilteringPlugin(data), mbInsideDestructor(false) {}
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virtual void run() override
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{
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TraverseDecl(compiler.getASTContext().getTranslationUnitDecl());
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}
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bool TraverseCXXDestructorDecl(CXXDestructorDecl* );
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bool VisitCXXDeleteExpr(const CXXDeleteExpr* );
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private:
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bool mbInsideDestructor;
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};
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bool AutoMem::TraverseCXXDestructorDecl(CXXDestructorDecl* expr)
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{
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mbInsideDestructor = true;
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bool ret = RecursiveASTVisitor::TraverseCXXDestructorDecl(expr);
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mbInsideDestructor = false;
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return ret;
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}
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bool AutoMem::VisitCXXDeleteExpr(const CXXDeleteExpr* expr)
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{
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if (ignoreLocation( expr ))
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return true;
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StringRef aFileName = getFileNameOfSpellingLoc(compiler.getSourceManager().getSpellingLoc(compat::getBeginLoc(expr)));
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if (loplugin::hasPathnamePrefix(aFileName, SRCDIR "/include/salhelper/")
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|| loplugin::hasPathnamePrefix(aFileName, SRCDIR "/include/osl/")
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|| loplugin::hasPathnamePrefix(aFileName, SRCDIR "/salhelper/")
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|| loplugin::hasPathnamePrefix(aFileName, SRCDIR "/store/")
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|| loplugin::hasPathnamePrefix(aFileName, SRCDIR "/sal/"))
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return true;
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if (mbInsideDestructor)
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return true;
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const ImplicitCastExpr* pCastExpr = dyn_cast<ImplicitCastExpr>(expr->getArgument());
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if (!pCastExpr)
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return true;
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const MemberExpr* pMemberExpr = dyn_cast<MemberExpr>(pCastExpr->getSubExpr());
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if (!pMemberExpr)
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return true;
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// ignore union games
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const FieldDecl* pFieldDecl = dyn_cast<FieldDecl>(pMemberExpr->getMemberDecl());
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if (!pFieldDecl)
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return true;
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TagDecl const * td = dyn_cast<TagDecl>(pFieldDecl->getDeclContext());
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if (td->isUnion())
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return true;
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report(
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DiagnosticsEngine::Warning,
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"calling delete on object field, rather use std::unique_ptr or std::scoped_ptr",
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compat::getBeginLoc(expr))
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<< expr->getSourceRange();
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return true;
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}
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loplugin::Plugin::Registration< AutoMem > X("automem", false);
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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