The String class does that though, doesn't it? For example,
var sid1 :String = new String("ID_101-102-103");
var sid2 :String = "ID_101-102-103";
var sid3 :String = new String(sid1);
are all legal. Maybe there is a reason why String can't be extended
(I haven't tried it), but it might be worth looking into.
--- In flexcoders@yahoogroups.com, "Michael Schmalle"
<[EMAIL PROTECTED]> wrote:
>
> Hi,
>
> > var sid2 :StringId = "ID_101-102-103";
>
> There is no way you can do that. AS3 uses typing and that is all
you are
> doing.
>
> The "" is the string constructor and there is no way to change that.
>
> If I understand what you are asking there is something you can use
so you
> don't have to use toString().
>
>
> public function StringId(stringId :Object)
> {
> if (stringid is StringId)
> this.guid = stringId.toString();
> else if(stringid is String)
> this.guid = stringid;
> else
> throw new Error("Incorrect argument type. Must be of type
String or
> StringId");
> }
>
>
> On 5/4/07, Sebastian Feher <[EMAIL PROTECTED]> wrote:
> >
> > I need a class that contains one string that has some
constrains when
> > is created.
> >
> > package mypackage
> > {
> > public class StringId
> > {
> > private var stringId :String;
> >
> > public function StringId(stringId :Id)
> > {
> > this.guid = stringId;
> > }
> > }
> > }
> >
> > This works fine:
> > var sid1 :StringId = new StringId("ID_101-102-103");
> >
> > but I would like to be able to type also:
> > var sid2 :StringId = "ID_101-102-103";
> >
> > and:
> > var sid3 :StringId = new StringId(sid1);
> >
> > Is there any copy constructor / assignment operator / multiple
> > constructors trick that I can use?
> >
> > The last one I can either replace with:
> > var sid3 :StringId = new StringId(sid1.toString());
> >
> > or have the constructor make the distinction between the String
and
> > StringId being passed in.
> >
> > Any ideas/hints ?
> >
> > Thanks,
> > Sebastian
> >
> >
> >
>
>
>
> --
> Teoti Graphix
> http://www.teotigraphix.com
>
> Blog - Flex2Components
> http://www.flex2components.com
>
> You can find more by solving the problem then by 'asking the
question'.
>
