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72e08fb87b
Dealing with GParamSpec is tedious and less efficient than necessary; property definitions should be able to either directly access a struct field or specify the accessors pair that control a property. On top of that, most of the property and accessor definition can be autogenerated from simple pre-processor directives. So, here's to you GProperty. GProperty is a GParamSpec sub-class that encapsulates all the types inside a single, opaque structure (to avoid leaking out implementation details); a GProperty can access the structure member holding the value of the property, or invoke the accessor functions passed to its constructor. Type safety is maintained through the GType system and without having to use GValue. Along with GProperty, this patch introduces a series of macros for automating the declaration and definition of property accessor functions, and for automating the collection and lcopy of values without going through GValue. GObject will recognize whether a GParamSpec used to set or get a property is really a GProperty, and thus will shortcircuit most of the GValue-based marshalled code, preferring the direct C function and direct argument collection instead of boxing/unboxing of GValues. https://bugzilla.gnome.org/show_bug.cgi?id=648526