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