Remove qmltc compilation command in favor of qt_add_qml_module()

[ChangeLog][CMake] The qmltc compilation functionality provided by
qt6_target_compile_qml_to_cpp() is merged into qt6_add_qml_module()
command and is available through ENABLE_TYPE_COMPILER argument. The
qt6_target_compile_qml_to_cpp() function does nothing and is left
only to highlight that users must migrate away from it.

Fixes: QTBUG-100215
Change-Id: Ie7d6b82564dff86176194fce35039ba0d93c0977
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>

1 files changed, 7 insertions, 52 deletions

diff --git a/src/qml/Qt6QmlBuildInternals.cmake b/src/qml/Qt6QmlBuildInternals.cmake
index ad42596931..7ff542b7c7 100644
--- a/src/qml/Qt6QmlBuildInternals.cmake
+++ b/src/qml/Qt6QmlBuildInternals.cmake
@@ -18,6 +18,7 @@ macro(qt_internal_get_internal_add_qml_module_keywords
         NO_GENERATE_QMLDIR
         NO_LINT
         NO_CACHEGEN
+        ENABLE_TYPE_COMPILER
         __QT_INTERNAL_STATIC_MODULE
         __QT_INTERNAL_SYSTEM_MODULE
     )
@@ -29,6 +30,7 @@ macro(qt_internal_get_internal_add_qml_module_keywords
         CLASS_NAME
         CLASSNAME  # TODO: Remove once all other repos have been updated to use
                    #       CLASS_NAME instead.
+        TYPE_COMPILER_NAMESPACE
     )
     set(${multi_args}
         QML_FILES
@@ -306,6 +308,11 @@ function(qt_internal_add_qml_module target)
         list(APPEND add_qml_module_args NAMESPACE ${qt_namespace})
     endif()
 
+    if (arg_ENABLE_TYPE_COMPILER AND NOT arg_TYPE_COMPILER_NAMESPACE)
+        # if qmltc namespace is not specified explicitly, use Qt's namespace
+        list(APPEND add_qml_module_args TYPE_COMPILER_NAMESPACE ${qt_namespace})
+    endif()
+
     # Update the backing and plugin targets with qml-specific things.
     qt6_add_qml_module(${target}
         ${add_qml_module_args}
@@ -437,55 +444,3 @@ function(qt_internal_add_qml_module target)
         endif()
     endif()
 endfunction()
-
-# This function is an internal wrapper around qt6_target_compile_qml_to_cpp().
-# It sets up some pre-defined Qt-specific arguments when calling the
-# qt6_target_compile_qml_to_cpp(). All keywords supported by
-# qt6_target_compile_qml_to_cpp() can be used.
-#
-# Unlike the public command version, the following changes are present:
-# - NAMESPACE argument is set to QT_NAMESPACE by default
-#
-# See qt6_target_compile_qml_to_cpp() for the full set of supported keywords.
-function(qt_internal_target_compile_qml_to_cpp target)
-    set(option_args "")
-    set(single_args NAMESPACE)
-    set(multi_args QML_FILES IMPORT_PATHS)
-    qt_parse_all_arguments(arg "qt_internal_target_compile_qml_to_cpp"
-        "${option_args}"
-        "${single_args}"
-        "${multi_args}"
-        ${ARGN}
-    )
-
-    # internal-only logic:
-    if(NOT arg_NAMESPACE)
-        # NB: assume Qt Core is present. we're in an internal function, so it's
-        # a safe enough assumption
-
-        # Apparently, -DQT_NAMESPACE only exists within qtbase or qt5's
-        # top-level build. Thus, in many other cases that option is unspecified.
-        # To avoid dealing with this, we can query the QT_NAMESPACE for QtCore's
-        # compile definitions (because we have it there).
-        get_target_property(arg_NAMESPACE ${QT_CMAKE_EXPORT_NAMESPACE}::Core _qt_namespace)
-    endif()
-
-    set(target_compile_qml_to_cpp_args "")
-    # Pass through options if given (these are present/absent, not true/false)
-    foreach(opt IN LISTS option_args)
-        if(arg_${opt})
-            list(APPEND target_compile_qml_to_cpp_args ${opt})
-        endif()
-    endforeach()
-    # Pass through single and multi-value args as provided.
-    foreach(arg IN LISTS single_args multi_args)
-        if(DEFINED arg_${arg})
-            list(APPEND target_compile_qml_to_cpp_args ${arg} ${arg_${arg}})
-        endif()
-    endforeach()
-
-    qt6_target_compile_qml_to_cpp(${target}
-        ${target_compile_qml_to_cpp_args}
-    )
-
-endfunction()