104 lines
2.9 KiB
C++
104 lines
2.9 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
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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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#ifndef LO_CLANG_SHARED_PLUGINS
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// Find classes deriving from other classes with virtual member functions annotated with
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// SAL_LOPLUGIN_ANNOTATE("mustoverride"), but where the derived class fails to directly override
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// them.
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#include <set>
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#include "plugin.hxx"
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namespace
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{
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void findMustOverride(CXXRecordDecl const* decl, std::set<CXXMethodDecl const*>* mustOverride)
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{
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for (auto const& base : decl->bases())
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{
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auto const d = base.getType()->getAsCXXRecordDecl();
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if (d == nullptr)
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{
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continue;
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}
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findMustOverride(d, mustOverride);
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for (auto const meth : d->methods())
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{
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if (!meth->isVirtual())
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{
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continue;
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}
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for (auto const attr : meth->specific_attrs<AnnotateAttr>())
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{
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if (attr->getAnnotation() == "loplugin:mustoverride")
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{
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mustOverride->insert(meth);
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break;
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}
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}
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}
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}
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}
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class MustOverride : public loplugin::FilteringPlugin<MustOverride>
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{
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public:
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explicit MustOverride(loplugin::InstantiationData const& data)
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: FilteringPlugin(data)
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{
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}
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bool VisitCXXRecordDecl(CXXRecordDecl const* decl)
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{
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if (ignoreLocation(decl))
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{
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return true;
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}
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if (!decl->isThisDeclarationADefinition())
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{
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return true;
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}
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if (!decl->isPolymorphic())
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{
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return true;
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}
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std::set<CXXMethodDecl const*> mustOverride;
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findMustOverride(decl, &mustOverride);
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for (auto const meth : mustOverride)
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{
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if (meth->getCorrespondingMethodDeclaredInClass(decl) != nullptr)
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{
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continue;
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}
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report(DiagnosticsEngine::Warning, "%0 does not override %1 from %2",
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decl->getLocation())
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<< decl << meth << meth->getParent() << decl->getSourceRange();
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report(DiagnosticsEngine::Note, "declared here", meth->getLocation())
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<< meth->getSourceRange();
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}
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return true;
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}
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private:
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void run() override
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{
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if (compiler.getLangOpts().CPlusPlus)
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{
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TraverseDecl(compiler.getASTContext().getTranslationUnitDecl());
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}
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}
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};
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loplugin::Plugin::Registration<MustOverride> mustoverride("mustoverride");
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}
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
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