69 lines
1.9 KiB
C++
69 lines
1.9 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 "plugin.hxx"
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namespace {
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class DeadClass:
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public loplugin::FilteringPlugin<DeadClass>
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{
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public:
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explicit DeadClass(InstantiationData const & data): FilteringPlugin(data) {}
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void run() override;
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bool VisitCXXRecordDecl(CXXRecordDecl const *);
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};
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void DeadClass::run() {
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if (compiler.getLangOpts().CPlusPlus) {
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TraverseDecl(compiler.getASTContext().getTranslationUnitDecl());
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}
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}
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bool DeadClass::VisitCXXRecordDecl(CXXRecordDecl const * decl) {
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if (ignoreLocation(decl) || !decl->isThisDeclarationADefinition())
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return true;
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if (decl->needsImplicitDefaultConstructor())
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return true;
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if (decl->getDescribedClassTemplate())
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return true;
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if (isa<ClassTemplateSpecializationDecl>(decl))
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return true;
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int otherCnt = 0;
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int copyMoveCnt = 0;
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for (auto i = decl->ctor_begin(); i != decl->ctor_end(); ++i) {
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if (!i->isUserProvided())
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continue;
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if (i->isCopyOrMoveConstructor())
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copyMoveCnt++;
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else
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otherCnt++;
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}
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if (otherCnt == 0 && copyMoveCnt > 0)
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{
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report(
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DiagnosticsEngine::Warning,
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"class has only copy/move constructors, must be dead",
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decl->getLocStart())
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<< decl->getSourceRange();
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for (auto i = decl->ctor_begin(); i != decl->ctor_end(); ++i) {
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if (i->isDeleted())
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continue;
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}
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}
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return true;
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}
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loplugin::Plugin::Registration<DeadClass> X("deadclass");
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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