gproperty: Allow control over the accessors copy semanticsg-property

It should be possible to define whether a property will take a
reference, or make a copy, of the value being set or retrieved,
so that we can reflect this behaviour inside the introspection
and documentation.

In order to do that, we can add two new flags to GProperty, detailing
the behaviour for setter and getter separately (and a simple shorthand
for both).

By default, GProperty will now not copy a boxed type, or take a
reference on an object type, when setting a new value; it is up
to the developer to specify this behaviour.

0 files changed, 0 insertions, 0 deletions