Re: GObject Introspection support for GSList or other types without a GLib type

[Owen Taylor <otaylor redhat com>]

On Sun, 2009-06-21 at 19:33 -0500, Daniel Espinosa wrote:
> That's true, but is there any data type check when g_object_set/get
> function is called?
> 
> If GLib plans to use G_TYPE_POINTER for GSList, GError, gshort, and
> any other data type without G_TYPE* macro defined, then just tell it
> on the documentation: "if you (programer) want to use a not defined
> type use G_TYPE_POINTER on properties declaration".
> 
> If documented or the better practice is stablished, some projects like
> Anjuta doesn't need to define a G_TYPE_ERROR from him self.

You are misunderstanding my comment.

I'm talking in *particular* about GSList. Well and GList, GHashTable and
other container types.

Without parameterized types (a list of what?) G_TYPE_SLIST is useless.

- Owen

> 2009/6/17 Owen Taylor <otaylor redhat com>
>         On Sun, 2009-06-14 at 02:30 -0500, Daniel Espinosa wrote:
>         > How to handle data types without a GLib GType defined.
>         >
>         > On libgda, it define a GType for GError and a GSList becouse
>         these
>         > doesn't exist on GLib and it uses them as parameters when
>         creating
>         > properties and events.
>         >
>         > For now may be the library (as Anjuta does) must create its
>         own GType
>         > definition but with the following rule: the name of the type
>         must be
>         > defined as "GError" and "GSList", in order to allow
>         g-ri-scanner to
>         > detects the currect types GError and GSList as the example.
>         >
>         > In GDA it has GDA_TYPE_ERROR and GDA_TYPE_SLIST with
>         "GdaError" and
>         > "GdaSList", then the scanner tries to find a definition to
>         GdaError
>         > and GdaSList but they don't exist, when changed this types'
>         names as
>         > avobe the correct type is detected.
>         
>         
>         To point out what may be obvious - there is zero advantage of
>         a
>         <X>_TYPE_SLIST over G_TYPE_POINTER.
>         
>         This is true in general, and true for gobject-introspection -
>         if
>         gobject-introspection finds a property by introspection and
>         deduces a
>         type of GSList for it, it still doesn't have the element-type.
>         
>         - Owen
>         
>         
> 
> 
> 
> -- 
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