Rewrite ::getObjects usage to use predicate version

This makes the code easier to read and shorter.

Change-Id: I6d582bd9861aa0208565301f61f098e9313b6c89
Reviewed-by: hjk <hjk121@nokiamail.com>

src/plugins/coreplugin/editormanager/editormanager.cpp

@@ -1380,11 +1380,10 @@ EditorManager::ExternalEditorList
 template <class EditorFactoryLike>
 EditorFactoryLike *findById(const Core::Id &id)
 {
-    const QList<EditorFactoryLike *> factories = ExtensionSystem::PluginManager::getObjects<EditorFactoryLike>();
-    foreach (EditorFactoryLike *efl, factories)
-        if (id == efl->id())
-            return efl;
-    return 0;
+    return ExtensionSystem::PluginManager::getObject<EditorFactoryLike>(
+        [&id](EditorFactoryLike *efl) {
+            return id == efl->id();
+        });
 }
 
 IEditor *EditorManager::createEditor(const Id &editorId, const QString &fileName)

src/plugins/coreplugin/mainwindow.cpp

@@ -795,14 +795,10 @@ void MainWindow::openFile()
 
 static QList<IDocumentFactory*> getNonEditorDocumentFactories()
 {
-    const QList<IDocumentFactory*> allFileFactories =
-        ExtensionSystem::PluginManager::getObjects<IDocumentFactory>();
-    QList<IDocumentFactory*> nonEditorFileFactories;
-    foreach (IDocumentFactory *factory, allFileFactories) {
-        if (!qobject_cast<IEditorFactory *>(factory))
-            nonEditorFileFactories.append(factory);
-    }
-    return nonEditorFileFactories;
+    return ExtensionSystem::PluginManager::getObjects<IDocumentFactory>(
+        [](IDocumentFactory *factory) {
+            return !qobject_cast<IEditorFactory *>(factory);
+        });
 }
 
 static IDocumentFactory *findDocumentFactory(const QList<IDocumentFactory*> &fileFactories,

src/plugins/cpptools/cppcodestylepreferencesfactory.cpp

@@ -127,12 +127,10 @@ TextEditor::Indenter *CppCodeStylePreferencesFactory::createIndenter() const
 
 TextEditor::ISnippetProvider *CppCodeStylePreferencesFactory::snippetProvider() const
 {
-    const QList<TextEditor::ISnippetProvider *> &providers =
-        ExtensionSystem::PluginManager::getObjects<TextEditor::ISnippetProvider>();
-    foreach (TextEditor::ISnippetProvider *provider, providers)
-        if (provider->groupId() == QLatin1String(CppEditor::Constants::CPP_SNIPPETS_GROUP_ID))
-            return provider;
-    return 0;
+    return ExtensionSystem::PluginManager::getObject<TextEditor::ISnippetProvider>(
+        [](TextEditor::ISnippetProvider *provider) {
+            return provider->groupId() == QLatin1String(CppEditor::Constants::CPP_SNIPPETS_GROUP_ID);
+        });
 }
 
 QString CppCodeStylePreferencesFactory::previewText() const

src/plugins/cpptools/cppcodestylesettingspage.cpp

@@ -486,15 +486,10 @@ void CppCodeStylePreferencesWidget::updatePreview()
 
 void CppCodeStylePreferencesWidget::decorateEditors(const TextEditor::FontSettings &fontSettings)
 {
-    const ISnippetProvider *provider = 0;
-    const QList<ISnippetProvider *> &providers =
-        ExtensionSystem::PluginManager::getObjects<ISnippetProvider>();
-    foreach (const ISnippetProvider *current, providers) {
-        if (current->groupId() == QLatin1String(CppEditor::Constants::CPP_SNIPPETS_GROUP_ID)) {
-            provider = current;
-            break;
-        }
-    }
+    const ISnippetProvider *provider = ExtensionSystem::PluginManager::getObject<ISnippetProvider>(
+        [](ISnippetProvider *current) {
+            return current->groupId() == QLatin1String(CppEditor::Constants::CPP_SNIPPETS_GROUP_ID);
+        });
 
     foreach (TextEditor::SnippetEditorWidget *editor, m_previews) {
         editor->baseTextDocument()->setFontSettings(fontSettings);

src/plugins/projectexplorer/buildconfiguration.cpp

@@ -332,13 +332,10 @@ IBuildConfigurationFactory::~IBuildConfigurationFactory()
 // restore
 IBuildConfigurationFactory *IBuildConfigurationFactory::find(Target *parent, const QVariantMap &map)
 {
-    QList<IBuildConfigurationFactory *> factories
-            = ExtensionSystem::PluginManager::getObjects<IBuildConfigurationFactory>();
-    foreach (IBuildConfigurationFactory *factory, factories) {
-        if (factory->canRestore(parent, map))
-            return factory;
-    }
-    return 0;
+    return ExtensionSystem::PluginManager::getObject<IBuildConfigurationFactory>(
+        [&parent, map](IBuildConfigurationFactory *factory) {
+            return factory->canRestore(parent, map);
+        });
 }
 
 // setup
@@ -378,12 +375,9 @@ IBuildConfigurationFactory * IBuildConfigurationFactory::find(Target *parent)
 // clone
 IBuildConfigurationFactory *IBuildConfigurationFactory::find(Target *parent, BuildConfiguration *bc)
 {
-    QList<IBuildConfigurationFactory *> factories
-            = ExtensionSystem::PluginManager::getObjects<IBuildConfigurationFactory>();
-    foreach (IBuildConfigurationFactory *factory, factories) {
-        if (factory->canClone(parent, bc))
-            return factory;
-    }
-    return 0;
+    return ExtensionSystem::PluginManager::getObject<IBuildConfigurationFactory>(
+        [&parent, &bc](IBuildConfigurationFactory *factory) {
+            return factory->canClone(parent, bc);
+        });
 }
 } // namespace ProjectExplorer

src/plugins/projectexplorer/buildsteplist.cpp

@@ -44,20 +44,18 @@ namespace {
 
 IBuildStepFactory *findCloneFactory(BuildStepList *parent, BuildStep *source)
 {
-    QList<IBuildStepFactory *> factories = ExtensionSystem::PluginManager::getObjects<IBuildStepFactory>();
-    foreach (IBuildStepFactory *factory, factories)
-        if (factory->canClone(parent, source))
-            return factory;
-    return 0;
+    return ExtensionSystem::PluginManager::getObject<IBuildStepFactory>(
+        [&parent, &source](IBuildStepFactory *factory) {
+            return factory->canClone(parent, source);
+        });
 }
 
 IBuildStepFactory *findRestoreFactory(BuildStepList *parent, const QVariantMap &map)
 {
-    QList<IBuildStepFactory *> factories = ExtensionSystem::PluginManager::getObjects<IBuildStepFactory>();
-    foreach (IBuildStepFactory *factory, factories)
-        if (factory->canRestore(parent, map))
-            return factory;
-    return 0;
+    return ExtensionSystem::PluginManager::getObject<IBuildStepFactory>(
+        [&parent, &map](IBuildStepFactory *factory) {
+            return factory->canRestore(parent, map);
+        });
 }
 
 const char STEPS_COUNT_KEY[] = "ProjectExplorer.BuildStepList.StepsCount";

src/plugins/projectexplorer/customwizard/customwizard.cpp

@@ -335,15 +335,16 @@ CustomWizard::CustomWizardContextPtr CustomWizard::context() const
 CustomWizard *CustomWizard::createWizard(const CustomProjectWizard::CustomWizardParametersPtr &p,
                                          const Core::IWizard::Data &b)
 {
+    ICustomWizardFactory * factory = ExtensionSystem::PluginManager::getObject<ICustomWizardFactory>(
+        [&p, &b](ICustomWizardFactory *factory) {
+            return ((p->klass.isEmpty() && b.kind == factory->kind())
+                    || (!p->klass.isEmpty() && p->klass == factory->klass()));
+        });
+
     CustomWizard *rc = 0;
-    QList<ICustomWizardFactory *> factories = ExtensionSystem::PluginManager::getObjects<ICustomWizardFactory>();
-    foreach (ICustomWizardFactory *tmp, factories) {
-        if ((p->klass.isEmpty() && b.kind == tmp->kind())
-                || (!p->klass.isEmpty() && p->klass == tmp->klass())) {
-            rc = tmp->create();
-            break;
-        }
-    }
+    if (factory)
+        rc = factory->create();
+
     if (!rc) {
         qWarning("Unable to create custom wizard for class %s.", qPrintable(p->klass));
         return 0;

src/plugins/projectexplorer/deployconfiguration.cpp

@@ -227,36 +227,26 @@ DeployConfiguration *DeployConfigurationFactory::clone(Target *parent, DeployCon
 
 DeployConfigurationFactory *DeployConfigurationFactory::find(Target *parent, const QVariantMap &map)
 {
-    QList<DeployConfigurationFactory *> factories
-            = ExtensionSystem::PluginManager::getObjects<DeployConfigurationFactory>();
-    foreach (DeployConfigurationFactory *factory, factories) {
-        if (factory->canRestore(parent, map))
-            return factory;
-    }
-    return 0;
+    return ExtensionSystem::PluginManager::getObject<DeployConfigurationFactory>(
+        [&parent, &map](DeployConfigurationFactory *factory) {
+            return factory->canRestore(parent, map);
+        });
 }
 
 QList<DeployConfigurationFactory *> DeployConfigurationFactory::find(Target *parent)
 {
-    QList<DeployConfigurationFactory *> result;
-    QList<DeployConfigurationFactory *> factories
-            = ExtensionSystem::PluginManager::getObjects<DeployConfigurationFactory>();
-    foreach (DeployConfigurationFactory *factory, factories) {
-        if (!factory->availableCreationIds(parent).isEmpty())
-            result << factory;
-    }
-    return result;
+    return ExtensionSystem::PluginManager::getObjects<DeployConfigurationFactory>(
+        [&parent](DeployConfigurationFactory *factory) {
+            return !factory->availableCreationIds(parent).isEmpty();
+        });
 }
 
 DeployConfigurationFactory *DeployConfigurationFactory::find(Target *parent, DeployConfiguration *dc)
 {
-    QList<DeployConfigurationFactory *> factories
-            = ExtensionSystem::PluginManager::getObjects<DeployConfigurationFactory>();
-    foreach (DeployConfigurationFactory *factory, factories) {
-        if (factory->canClone(parent, dc))
-            return factory;
-    }
-    return 0;
+    return ExtensionSystem::PluginManager::getObject<DeployConfigurationFactory>(
+        [&parent, &dc](DeployConfigurationFactory *factory) {
+            return factory->canClone(parent, dc);
+        });
 }
 
 bool DeployConfigurationFactory::canHandle(Target *parent) const

src/plugins/projectexplorer/devicesupport/devicemanager.cpp

@@ -324,16 +324,16 @@ void DeviceManager::setDefaultDevice(Core::Id id)
 
 const IDeviceFactory *DeviceManager::restoreFactory(const QVariantMap &map)
 {
-    const QList<IDeviceFactory *> &factories
-        = ExtensionSystem::PluginManager::getObjects<IDeviceFactory>();
-    foreach (const IDeviceFactory * const factory, factories) {
-        if (factory->canRestore(map))
-            return factory;
-    }
-    qWarning("Warning: No factory found for device '%s' of type '%s'.",
-             qPrintable(IDevice::idFromMap(map).toString()),
-             qPrintable(IDevice::typeFromMap(map).toString()));
-    return 0;
+    IDeviceFactory *factory = ExtensionSystem::PluginManager::getObject<IDeviceFactory>(
+        [&map](IDeviceFactory *factory) {
+            return factory->canRestore(map);
+        });
+
+    if (!factory)
+        qWarning("Warning: No factory found for device '%s' of type '%s'.",
+                 qPrintable(IDevice::idFromMap(map).toString()),
+                 qPrintable(IDevice::typeFromMap(map).toString()));
+    return factory;
 }
 
 DeviceManager::DeviceManager(bool isInstance) : d(new DeviceManagerPrivate)

src/plugins/projectexplorer/devicesupport/devicesettingswidget.cpp

@@ -125,15 +125,12 @@ void DeviceSettingsWidget::initGui()
     m_ui->configurationComboBox->setModel(m_deviceManagerModel);
     m_ui->nameLineEdit->setValidator(m_nameValidator);
 
-    bool hasDeviceFactories = false;
     const QList<IDeviceFactory *> &factories
         = ExtensionSystem::PluginManager::getObjects<IDeviceFactory>();
-    foreach (const IDeviceFactory *f, factories) {
-        if (f->canCreate()) {
-            hasDeviceFactories = true;
-            break;
-        }
-    }
+
+    bool hasDeviceFactories = std::any_of(factories.constBegin(), factories.constEnd(),
+                                          [](IDeviceFactory *factory) { return factory->canCreate(); });
+
     m_ui->addConfigButton->setEnabled(hasDeviceFactories);
 
     int lastIndex = Core::ICore::settings()

src/plugins/projectexplorer/devicesupport/idevicefactory.cpp

@@ -89,13 +89,10 @@ bool IDeviceFactory::canCreate() const
 
 IDeviceFactory *IDeviceFactory::find(Core::Id type)
 {
-    QList<IDeviceFactory *> factories
-            = ExtensionSystem::PluginManager::getObjects<IDeviceFactory>();
-    foreach (IDeviceFactory *factory, factories) {
-        if (factory->availableCreationIds().contains(type))
-            return factory;
-    }
-    return 0;
+    return ExtensionSystem::PluginManager::getObject<IDeviceFactory>(
+        [&type](IDeviceFactory *factory) {
+            return factory->availableCreationIds().contains(type);
+        });
 }
 
 IDeviceFactory::IDeviceFactory(QObject *parent) : QObject(parent)

src/plugins/projectexplorer/kitinformation.cpp

@@ -293,14 +293,13 @@ KitInformation::ItemList DeviceTypeKitInformation::toUserOutput(const Kit *k) co
     Core::Id type = deviceTypeId(k);
     QString typeDisplayName = tr("Unknown device type");
     if (type.isValid()) {
-        QList<IDeviceFactory *> factories
-                = ExtensionSystem::PluginManager::getObjects<IDeviceFactory>();
-        foreach (IDeviceFactory *factory, factories) {
-            if (factory->availableCreationIds().contains(type)) {
-                typeDisplayName = factory->displayNameForId(type);
-                break;
-            }
-        }
+        IDeviceFactory *factory = ExtensionSystem::PluginManager::getObject<IDeviceFactory>(
+            [&type](IDeviceFactory *factory) {
+                return factory->availableCreationIds().contains(type);
+            });
+
+        if (factory)
+            typeDisplayName = factory->displayNameForId(type);
     }
     return ItemList() << qMakePair(tr("Device type"), typeDisplayName);
 }

src/plugins/projectexplorer/projectexplorer.cpp

@@ -2445,11 +2445,10 @@ void ProjectExplorerPlugin::activeRunConfigurationChanged()
 // NBS TODO implement more than one runner
 IRunControlFactory *ProjectExplorerPlugin::findRunControlFactory(RunConfiguration *config, RunMode mode)
 {
-    const QList<IRunControlFactory *> factories = ExtensionSystem::PluginManager::getObjects<IRunControlFactory>();
-    foreach (IRunControlFactory *f, factories)
-        if (f->canRun(config, mode))
-            return f;
-    return 0;
+    return ExtensionSystem::PluginManager::getObject<IRunControlFactory>(
+        [&config, &mode](IRunControlFactory *factory) {
+            return factory->canRun(config, mode);
+        });
 }
 
 void ProjectExplorerPlugin::updateDeployActions()

src/plugins/projectexplorer/runconfiguration.cpp

@@ -429,36 +429,26 @@ RunConfiguration *IRunConfigurationFactory::restore(Target *parent, const QVaria
 
 IRunConfigurationFactory *IRunConfigurationFactory::find(Target *parent, const QVariantMap &map)
 {
-    QList<IRunConfigurationFactory *> factories
-            = ExtensionSystem::PluginManager::getObjects<IRunConfigurationFactory>();
-    foreach (IRunConfigurationFactory *factory, factories) {
-        if (factory->canRestore(parent, map))
-            return factory;
-    }
-    return 0;
+    return ExtensionSystem::PluginManager::getObject<IRunConfigurationFactory>(
+        [&parent, &map](IRunConfigurationFactory *factory) {
+            return factory->canRestore(parent, map);
+        });
 }
 
 IRunConfigurationFactory *IRunConfigurationFactory::find(Target *parent, RunConfiguration *rc)
 {
-    QList<IRunConfigurationFactory *> factories
-            = ExtensionSystem::PluginManager::getObjects<IRunConfigurationFactory>();
-    foreach (IRunConfigurationFactory *factory, factories) {
-        if (factory->canClone(parent, rc))
-            return factory;
-    }
-    return 0;
+    return ExtensionSystem::PluginManager::getObject<IRunConfigurationFactory>(
+        [&parent, rc](IRunConfigurationFactory *factory) {
+            return factory->canClone(parent, rc);
+        });
 }
 
 QList<IRunConfigurationFactory *> IRunConfigurationFactory::find(Target *parent)
 {
-    QList<IRunConfigurationFactory *> factories
-            = ExtensionSystem::PluginManager::getObjects<IRunConfigurationFactory>();
-    QList<IRunConfigurationFactory *> result;
-    foreach (IRunConfigurationFactory *factory, factories) {
-        if (!factory->availableCreationIds(parent).isEmpty())
-            result << factory;
-    }
-    return result;
+    return ExtensionSystem::PluginManager::getObjects<IRunConfigurationFactory>(
+        [&parent](IRunConfigurationFactory *factory) {
+            return !factory->availableCreationIds(parent).isEmpty();
+        });
 }
 
 /*!

src/plugins/projectexplorer/toolchainoptionspage.cpp

@@ -501,7 +501,8 @@ QWidget *ToolChainOptionsPage::widget()
                 this, SLOT(toolChainSelectionChanged()));
 
         // Get toolchainfactories:
-        m_factories = ExtensionSystem::PluginManager::getObjects<ToolChainFactory>();
+        m_factories = ExtensionSystem::PluginManager::getObjects<ToolChainFactory>(
+                    [](ToolChainFactory *factory) { return factory->canCreate();});
 
         // Set up add menu:
         QMenu *addMenu = new QMenu(m_addButton);
@@ -509,14 +510,12 @@ QWidget *ToolChainOptionsPage::widget()
         connect(mapper, SIGNAL(mapped(QObject*)), this, SLOT(createToolChain(QObject*)));
 
         foreach (ToolChainFactory *factory, m_factories) {
-            if (factory->canCreate()) {
-                QAction *action = new QAction(addMenu);
-                action->setText(factory->displayName());
-                connect(action, SIGNAL(triggered()), mapper, SLOT(map()));
-                mapper->setMapping(action, static_cast<QObject *>(factory));
+            QAction *action = new QAction(addMenu);
+            action->setText(factory->displayName());
+            connect(action, SIGNAL(triggered()), mapper, SLOT(map()));
+            mapper->setMapping(action, static_cast<QObject *>(factory));
 
-                addMenu->addAction(action);
-            }
+            addMenu->addAction(action);
         }
         connect(m_cloneButton, SIGNAL(clicked()), mapper, SLOT(map()));
         mapper->setMapping(m_cloneButton, static_cast<QObject *>(0));

src/plugins/qmakeprojectmanager/qmakerunconfigurationfactory.cpp

@@ -42,13 +42,10 @@ QmakeRunConfigurationFactory *QmakeRunConfigurationFactory::find(ProjectExplorer
     if (!t)
         return 0;
 
-    QList<QmakeRunConfigurationFactory *> factories
-            = ExtensionSystem::PluginManager::getObjects<QmakeRunConfigurationFactory>();
-    foreach (QmakeRunConfigurationFactory *factory, factories) {
-        if (factory->canHandle(t))
-            return factory;
-    }
-    return 0;
+    return ExtensionSystem::PluginManager::getObject<QmakeRunConfigurationFactory>(
+        [&t](QmakeRunConfigurationFactory *factory) {
+            return factory->canHandle(t);
+        });
 }
 
 } // namespace QmakeProjectManager

src/plugins/qmljstools/qmljscodestylepreferencesfactory.cpp

@@ -92,12 +92,10 @@ TextEditor::Indenter *QmlJSCodeStylePreferencesFactory::createIndenter() const
 
 TextEditor::ISnippetProvider *QmlJSCodeStylePreferencesFactory::snippetProvider() const
 {
-    const QList<TextEditor::ISnippetProvider *> &providers =
-    ExtensionSystem::PluginManager::getObjects<TextEditor::ISnippetProvider>();
-    foreach (TextEditor::ISnippetProvider *provider, providers)
-        if (provider->groupId() == QLatin1String(QmlJSEditor::Constants::QML_SNIPPETS_GROUP_ID))
-            return provider;
-    return 0;
+    return ExtensionSystem::PluginManager::getObject<TextEditor::ISnippetProvider>(
+        [](TextEditor::ISnippetProvider *provider) {
+            return provider->groupId() == QLatin1String(QmlJSEditor::Constants::QML_SNIPPETS_GROUP_ID);
+        });
 }
 
 QString QmlJSCodeStylePreferencesFactory::previewText() const

src/plugins/qmljstools/qmljscodestylesettingspage.cpp

@@ -61,14 +61,13 @@ QmlJSCodeStylePreferencesWidget::QmlJSCodeStylePreferencesWidget(QWidget *parent
 {
     m_ui->setupUi(this);
 
-    const QList<ISnippetProvider *> &providers =
-        ExtensionSystem::PluginManager::getObjects<ISnippetProvider>();
-    foreach (ISnippetProvider *provider, providers) {
-        if (provider->groupId() == QLatin1String(QmlJSEditor::Constants::QML_SNIPPETS_GROUP_ID)) {
-            provider->decorateEditor(m_ui->previewTextEdit);
-            break;
-        }
-    }
+    ISnippetProvider *provider = ExtensionSystem::PluginManager::getObject<ISnippetProvider>(
+        [](ISnippetProvider *provider) {
+            return provider->groupId() == QLatin1String(QmlJSEditor::Constants::QML_SNIPPETS_GROUP_ID);
+        });
+
+    if (provider)
+        provider->decorateEditor(m_ui->previewTextEdit);
 
     decorateEditor(TextEditorSettings::fontSettings());
     connect(TextEditorSettings::instance(), SIGNAL(fontSettingsChanged(TextEditor::FontSettings)),
@@ -97,15 +96,10 @@ void QmlJSCodeStylePreferencesWidget::setPreferences(TextEditor::ICodeStylePrefe
 
 void QmlJSCodeStylePreferencesWidget::decorateEditor(const TextEditor::FontSettings &fontSettings)
 {
-    const ISnippetProvider *provider = 0;
-    const QList<ISnippetProvider *> &providers =
-        ExtensionSystem::PluginManager::getObjects<ISnippetProvider>();
-    foreach (const ISnippetProvider *current, providers) {
-        if (current->groupId() == QLatin1String(QmlJSEditor::Constants::QML_SNIPPETS_GROUP_ID)) {
-            provider = current;
-            break;
-        }
-    }
+    const ISnippetProvider *provider = ExtensionSystem::PluginManager::getObject<ISnippetProvider>(
+        [](ISnippetProvider *current) {
+            return current->groupId() == QLatin1String(QmlJSEditor::Constants::QML_SNIPPETS_GROUP_ID);
+        });
 
     m_ui->previewTextEdit->baseTextDocument()->setFontSettings(fontSettings);
     if (provider)