LanguageClient: Hide plugin class definition in cpp

As part of that, move test object creation closer to tested code.

Change-Id: I60f1e431fbdd4ebc2a01ab6ed0c779c288c81b06
Reviewed-by: David Schulz <david.schulz@qt.io>

src/plugins/languageclient/CMakeLists.txt

@@ -23,7 +23,7 @@ add_qtc_plugin(LanguageClient
     languageclientinterface.cpp languageclientinterface.h
     languageclientmanager.cpp languageclientmanager.h
     languageclientoutline.cpp languageclientoutline.h
-    languageclientplugin.cpp languageclientplugin.h
+    languageclientplugin.cpp
     languageclientquickfix.cpp languageclientquickfix.h
     languageclientsettings.cpp languageclientsettings.h
     languageclientsymbolsupport.cpp languageclientsymbolsupport.h

src/plugins/languageclient/languageclient.qbs

@@ -46,7 +46,6 @@ QtcPlugin {
         "languageclientoutline.cpp",
         "languageclientoutline.h",
         "languageclientplugin.cpp",
-        "languageclientplugin.h",
         "languageclientquickfix.cpp",
         "languageclientquickfix.h",
         "languageclientsettings.cpp",

src/plugins/languageclient/languageclientplugin.cpp

@@ -1,33 +1,41 @@
 // Copyright (C) 2018 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
 
-#include "languageclientplugin.h"
-
 #include "callhierarchy.h"
 #include "languageclientmanager.h"
+#include "languageclientoutline.h"
 #include "languageclientsettings.h"
 #include "languageclienttr.h"
+#include "snippet.h"
 
 #include <coreplugin/actionmanager/actioncontainer.h>
 #include <coreplugin/actionmanager/actionmanager.h>
 
+#include <extensionsystem/iplugin.h>
+
 #include <QAction>
 #include <QMenu>
 
 namespace LanguageClient {
 
-static LanguageClientPlugin *m_instance = nullptr;
-
-LanguageClientPlugin::LanguageClientPlugin()
+class LanguageClientPlugin final : public ExtensionSystem::IPlugin
 {
-    m_instance = this;
+    Q_OBJECT
+    Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QtCreatorPlugin" FILE "LanguageClient.json")
+
+public:
+    LanguageClientPlugin()
+    {
         qRegisterMetaType<LanguageServerProtocol::JsonRpcMessage>();
-}
+    }
 
-LanguageClientPlugin::~LanguageClientPlugin()
-{
-    m_instance = nullptr;
-}
+private:
+    void initialize() final;
+    void extensionsInitialized() final;
+    ShutdownFlag aboutToShutdown() final;
+
+    LanguageClientOutlineWidgetFactory m_outlineFactory;
+};
 
 void LanguageClientPlugin::initialize()
 {
@@ -37,6 +45,10 @@ void LanguageClientPlugin::initialize()
     setupLanguageClientProjectPanel();
     setupLanguageClientManager(this);
 
+#ifdef WITH_TESTS
+    addTestCreator(&createSnippetParsingTest);
+#endif
+
     LanguageClientSettings::registerClientType({Constants::LANGUAGECLIENT_STDIO_SETTINGS_ID,
                                                 Tr::tr("Generic StdIO Language Server"),
                                                 []() { return new StdIOSettings; }});
@@ -65,3 +77,5 @@ ExtensionSystem::IPlugin::ShutdownFlag LanguageClientPlugin::aboutToShutdown()
 }
 
 } // namespace LanguageClient
+
+#include "languageclientplugin.moc"

src/plugins/languageclient/languageclientplugin.h

@@ -1,36 +0,0 @@
-// Copyright (C) 2018 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
-
-#pragma once
-
-#include "languageclientoutline.h"
-
-#include <extensionsystem/iplugin.h>
-
-namespace LanguageClient {
-
-class LanguageClientPlugin : public ExtensionSystem::IPlugin
-{
-    Q_OBJECT
-    Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QtCreatorPlugin" FILE "LanguageClient.json")
-public:
-    LanguageClientPlugin();
-    ~LanguageClientPlugin() override;
-
-    // IPlugin interface
-private:
-    void initialize() override;
-    void extensionsInitialized() override;
-    ShutdownFlag aboutToShutdown() override;
-
-private:
-    LanguageClientOutlineWidgetFactory m_outlineFactory;
-
-#ifdef WITH_TESTS
-private slots:
-    void testSnippetParsing_data();
-    void testSnippetParsing();
-#endif
-};
-
-} // namespace LanguageClient

src/plugins/languageclient/snippet.cpp

@@ -3,8 +3,6 @@
 
 #include "snippet.h"
 
-#include "languageclientplugin.h"
-
 #ifdef WITH_TESTS
 #include <QtTest>
 #endif
@@ -201,8 +199,20 @@ struct SnippetPart
 };
 Q_DECLARE_METATYPE(SnippetPart);
 
+namespace LanguageClient {
+
 using Parts = QList<SnippetPart>;
-void LanguageClient::LanguageClientPlugin::testSnippetParsing_data()
+
+class SnippetParsingTest final : public QObject
+{
+    Q_OBJECT
+
+private slots:
+    void testSnippetParsing_data();
+    void testSnippetParsing();
+};
+
+void SnippetParsingTest::testSnippetParsing_data()
 {
     QTest::addColumn<QString>("input");
     QTest::addColumn<bool>("success");
@@ -234,7 +244,7 @@ void LanguageClient::LanguageClientPlugin::testSnippetParsing_data()
         << Parts{SnippetPart("foo", 1), SnippetPart("bar", 1)};
 }
 
-void LanguageClient::LanguageClientPlugin::testSnippetParsing()
+void SnippetParsingTest::testSnippetParsing()
 {
     QFETCH(QString, input);
     QFETCH(bool, success);
@@ -259,4 +269,14 @@ void LanguageClient::LanguageClientPlugin::testSnippetParsing()
     for (int i = 0; i < parts.count(); ++i)
         rangesCompare(snippet.parts.at(i), parts.at(i));
 }
+
+QObject *createSnippetParsingTest()
+{
+    return new SnippetParsingTest;
+}
+
+} // namespace LanguageClient
+
+#include "snippet.moc"
+
 #endif

src/plugins/languageclient/snippet.h

@@ -11,4 +11,8 @@ namespace LanguageClient {
 
 LANGUAGECLIENT_EXPORT TextEditor::SnippetParseResult parseSnippet(const QString &snippet);
 
+#ifdef WITH_TESTS
+QObject *createSnippetParsingTest();
+#endif
+
 } // namespace LanguageClient