Re: [Vala] generated c code and properties

[Brian Grooman <thebutterknife gmail com>]

https://wiki.gnome.org/Projects/Vala/PropertiesSample

perhaps this is outdated?


On Mon, Jun 9, 2014 at 3:09 PM, Luca Bruno <lethalman88 gmail com> wrote:

> Sorry, where did you read that in the documentation?
>
>
> On Mon, Jun 9, 2014 at 9:06 PM, Brian Grooman <thebutterknife gmail com>
> wrote:
>
> > I just figured out the problem a few hours ago.
> >
> > The documentation recommends declaring properties in two parts, the value
> > and the getter/setter block.  so, for example:
> >
> > int _myvalue;
> >
> > public int myvalue{get; set;}
> >
> > The leading underscore on the int is there to prevent a naming conflict.
> >
> > I'm using vala to rewrite existing C code with gobjects.  I did not want
> > to rename the variables, so I instead put the underscore in front of the
> > getter/setter block, as so:
> >
> > int myvalue;
> >
> > public int _myvalue{get; set;}
> >
> > I guess valac didn't like that.  It would skip generating much of the
> > code.  Anyway, i found that you don't need to declare the variable at all:
> >
> > public int myvalue{get; set;}
> >
> > works just fine by itself.  A stupid mistake on my part.
> >
> >
> >
> > On Mon, Jun 9, 2014 at 2:49 PM, Luca Bruno <lethalman88 gmail com> wrote:
> >
> > > Sorry I've read your post several times, but I don't understand what
> > > Vala generated code is missing. Can you please provide vala code and say
> > > what the generated C code is missing?
> > >
> > >
> > > On Fri, Jun 6, 2014 at 6:19 PM, Brian <thebutterknife gmail com> wrote:
> > >
> > > > Hi all,
> > > > I've searched high and low for some information, but have been unable
> > > > to find
> > > > any on this particular situation.
> > > >
> > > > Hand coding GObjects in C allows for one get and one set function that
> > > > take
> > > > property id as an input. For example:
> > > >
> > > > object_set_property (GObject * object, guint property_id, Gvalue,
> > > > GParamSpec);
> > > >
> > > > And then a switch case statement inside the set function uses the
> > > > property_id
> > > > to decide which property to set. the property_id values are defined
> > > > with an
> > > > enum.
> > > >
> > > > When coding GObjects in vala, however, each property is given its own
> > > > get and
> > > > set function in the C code.  The funny thing is I still see a property
> > > > value
> > > > enum (that does not get filled out), as well as the generic get and set
> > > > functions with empty (default only) switch case statements.
> > > >
> > > > I already have gobject bindings that use the generic get/set functions.
> > > > I'd
> > > > rather not have to edit the vala-generated C code to use them.
> > > >
> > > > My question is, is there a way to get vala to automatically generate the
> > > > enums, and switch case statements? If not, is there a recommended
> > > > approach?
> > > >
> > > > I love the idea of not having to write all the GObject boilerplate and
> > > > writing
> > > > in vala rather than C. I really hope that I'm just missing something.
> > > > Any help
> > > > or ideas are much appreciated.
> > > >
> > > > Brian
> > > >
> > > > _______________________________________________
> > > > vala-list mailing list
> > > > vala-list gnome org
> > > > https://mail.gnome.org/mailman/listinfo/vala-list
> > >
> > >
> > >
> > > --
> > > www.debian.org - The Universal Operating System
>
>
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