At run time, not all the builtins are always available, but only those
hardcoded into the parser. If we always import all the builtins at
compile time, we introduce subtle errors when they shadow parts of the
JavaScript global object.
Now the builtins need to be actually imported. We cannot rely on the
magic that adds them to the root scope of each document anymore. To this
end, they need to become a regular module.
The builtins are now loaded using a qmldir, just like any other module.
The only thing special about is its "system" attribute which we now
take to mean "read jsroot.qmltypes". Furthermore, the builtins get a
"static" attribute so that we don't warn about them being unused. Even
though they can now technically be unused, we really want people to
still import them.
Pick-to: 6.9 6.8
Fixes: QTBUG-133461
Change-Id: I322e14ba85c939773d36143ca24e88a7c9db23f5
Reviewed-by: Sami Shalayel <sami.shalayel@qt.io>
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Olivier De Cannière <olivier.decanniere@qt.io>
Ulf Hermann