QmlDesigner: Disable Qml*Parser if there is no QmlDom

We simple provide an empty implementation. The project storage is anyway
not used by default. So it is expected that the programmer is providing
a qml dom if he wants to use the project storage.

Change-Id: Ib652e7589b4f773a4474974f6762490c5d515999
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>

src/plugins/qmldesigner/CMakeLists.txt

@@ -50,6 +50,28 @@ add_qtc_plugin(QmlDesigner
 include(qmldesignercore.cmake)
 extend_with_qmldesigner_core(QmlDesigner)
 
+get_filename_component(
+    QMLDOM_STANDALONE_CMAKELISTS
+    "${CMAKE_CURRENT_SOURCE_DIR}/../../../../qmldom_standalone/src/qmldom/standalone/"
+    ABSOLUTE
+)
+
+if(EXISTS ${QMLDOM_STANDALONE_CMAKELISTS} AND Qt6_FOUND AND NOT TARGET qmldomlib)
+  add_subdirectory(
+    ../../../../qmldom_standalone/src/qmldom/standalone
+    ${CMAKE_BINARY_DIR}/qmldom_standalone)
+
+  set_target_properties(qmldomlib PROPERTIES
+    RUNTIME_OUTPUT_DIRECTORY "$<TARGET_PROPERTY:QmlJS,RUNTIME_OUTPUT_DIRECTORY>"
+    LIBRARY_OUTPUT_DIRECTORY "$<TARGET_PROPERTY:QmlJS,LIBRARY_OUTPUT_DIRECTORY>")
+endif()
+
+extend_qtc_target(QmlDesigner
+    CONDITION TARGET qmldomlib
+    DEFINES QDS_HAS_QMLDOM
+    DEPENDS qmldomlib
+)
+
 if (QTC_STATIC_BUILD AND TARGET QmlDesigner)
   get_target_property(_designerType Qt5::Designer TYPE)
   if (${_designerType} STREQUAL "STATIC_LIBRARY")

src/plugins/qmldesigner/designercore/projectstorage/qmldocumentparser.cpp

@@ -30,13 +30,17 @@
 
 #include <sqlitedatabase.h>
 
+#ifdef QDS_HAS_QMLDOM
 #include <qmldom/qqmldomtop_p.h>
+#endif
 
 #include <filesystem>
 #include <QDateTime>
 
 namespace QmlDesigner {
 
+#ifdef QDS_HAS_QMLDOM
+
 namespace QmlDom = QQmlJS::Dom;
 
 namespace {
@@ -195,4 +199,15 @@ Storage::Type QmlDocumentParser::parse(const QString &sourceContent,
     return type;
 }
 
+#else
+
+Storage::Type QmlDocumentParser::parse([[maybe_unused]] const QString &sourceContent,
+                                       [[maybe_unused]] Storage::Imports &imports,
+                                       [[maybe_unused]] SourceId sourceId,
+                                       [[maybe_unused]] Utils::SmallStringView directoryPath)
+{
+    return Storage::Type{};
+}
+
+#endif
 } // namespace QmlDesigner

src/plugins/qmldesigner/designercore/projectstorage/qmltypesparser.cpp

@@ -30,8 +30,10 @@
 
 #include <sqlitedatabase.h>
 
+#ifdef QDS_HAS_QMLDOM
 #include <qmlcompiler/qqmljstypedescriptionreader_p.h>
 #include <qmldom/qqmldomtop_p.h>
+#endif
 
 #include <QDateTime>
 
@@ -40,6 +42,7 @@
 
 namespace QmlDesigner {
 
+#ifdef QDS_HAS_QMLDOM
 namespace QmlDom = QQmlJS::Dom;
 
 namespace {
@@ -304,4 +307,14 @@ void QmlTypesParser::parse(const QString &sourceContent,
     addTypes(types, projectData, components, m_storage);
 }
 
+#else
+
+void QmlTypesParser::parse([[maybe_unused]] const QString &sourceContent,
+                           [[maybe_unused]] Storage::Imports &imports,
+                           [[maybe_unused]] Storage::Types &types,
+                           [[maybe_unused]] const Storage::ProjectData &projectData)
+{}
+
+#endif
+
 } // namespace QmlDesigner