134 lines
4.1 KiB
C++
134 lines
4.1 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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#ifndef LO_CLANG_SHARED_PLUGINS
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#include <string>
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#include <iostream>
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#include "plugin.hxx"
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#include "check.hxx"
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#include "clang/AST/CXXInheritance.h"
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/*
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what might be more interesting is a warning about subclasses that add
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members but do not override virtual operator==() - that is easily
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forgotten and hard to notice.
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*/
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namespace {
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class SfxPoolItem:
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public loplugin::FilteringPlugin<SfxPoolItem>
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{
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public:
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explicit SfxPoolItem(loplugin::InstantiationData const & data): FilteringPlugin(data)
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{}
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virtual void run() override { TraverseDecl(compiler.getASTContext().getTranslationUnitDecl()); }
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bool VisitCXXRecordDecl( const CXXRecordDecl* );
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};
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bool BaseCheckNotSfxPoolItemSubclass(const CXXRecordDecl *BaseDefinition) {
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if (BaseDefinition && loplugin::TypeCheck(BaseDefinition).Class("SfxPoolItem").GlobalNamespace()) {
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return false;
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}
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return true;
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}
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bool isDerivedFromSfxPoolItem(const CXXRecordDecl *decl) {
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if (!decl)
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return false;
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if (loplugin::TypeCheck(decl).Class("SfxPoolItem").GlobalNamespace())
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return true;
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if (!decl->hasDefinition()) {
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return false;
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}
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if (// not sure what hasAnyDependentBases() does,
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// but it avoids classes we don't want, e.g. WeakAggComponentImplHelper1
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!decl->hasAnyDependentBases() &&
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!decl->forallBases(BaseCheckNotSfxPoolItemSubclass)) {
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return true;
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}
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return false;
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}
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bool BaseCheckNotSwMsgPoolItemSubclass(const CXXRecordDecl *BaseDefinition) {
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if (BaseDefinition && loplugin::TypeCheck(BaseDefinition).Class("SwMsgPoolItem")) {
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return false;
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}
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return true;
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}
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bool isDerivedFromSwMsgPoolItem(const CXXRecordDecl *decl) {
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if (!decl)
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return false;
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if (loplugin::TypeCheck(decl).Class("SwMsgPoolItem").GlobalNamespace())
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return true;
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if (!decl->hasDefinition()) {
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return false;
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}
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if (// not sure what hasAnyDependentBases() does,
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// but it avoids classes we don't want, e.g. WeakAggComponentImplHelper1
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!decl->hasAnyDependentBases() &&
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!decl->forallBases(BaseCheckNotSwMsgPoolItemSubclass)) {
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return true;
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}
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return false;
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}
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bool endsWith(const std::string& a, const std::string& b) {
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if (b.size() > a.size()) return false;
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return std::equal(a.begin() + a.size() - b.size(), a.end(), b.begin());
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}
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bool SfxPoolItem::VisitCXXRecordDecl(const CXXRecordDecl* decl)
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{
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if (ignoreLocation(decl)) {
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return true;
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}
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if (!decl->isThisDeclarationADefinition()) {
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return true;
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}
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// check if this class is derived from Window
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if (!isDerivedFromSfxPoolItem(decl)) {
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return true;
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}
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// the SwMsgPoolItem are some sort of hack to transport down-castable objects to SwClient::Modify(), they're not "real" items
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if (isDerivedFromSwMsgPoolItem(decl)) {
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return true;
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}
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if (decl->field_begin() == decl->field_end()) {
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return true;
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}
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// the enum types do some weird stuff involving SfxEnumItemInterface
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auto tc = loplugin::TypeCheck(decl);
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if (tc.Class("SfxEnumItem").GlobalNamespace() || tc.Class("SfxAllEnumItem").GlobalNamespace())
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return true;
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for (auto it = decl->method_begin(); it != decl->method_end(); ++it) {
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if ( endsWith((*it)->getQualifiedNameAsString(), "::operator==") )
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return true;
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}
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report(
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DiagnosticsEngine::Warning,
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"SfxPoolItem subclass %0 declares new fields, but does not override operator==",
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decl->getBeginLoc())
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<< decl->getQualifiedNameAsString() << decl->getSourceRange();
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return true;
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}
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loplugin::Plugin::Registration< SfxPoolItem > sfxpoolitem("sfxpoolitem");
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} // namespace
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#endif // LO_CLANG_SHARED_PLUGINS
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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