[plt-scheme] (typeof obj)

But name equality isn't type equality for structs (or am I missing
something? we're being pretty terse :)

On 6/11/07, Shriram Krishnamurthi <sk at cs.brown.edu> wrote:
> Counter-counter: name-equality =/=> type-equality for structs.
>
> On 6/11/07, Robby Findler <robby at cs.uchicago.edu> wrote:
> > On 6/11/07, Shriram Krishnamurthi <sk at cs.brown.edu> wrote:
> > > I assume you mean 'procedure (-:.
> > >
> > > So you don't really want the type at all: you just want the run-time
> > > tag on a value.  (That's what *you* want -- is that what the OP
> > > wants?)  I don't find that very useful.  What you want you can write
> > > just as well in Scheme:
> > >
> > > (define (run-time-tag-of v)
> > >   (cond
> > >     [(number? v) 'number]
> > >     [(string? v) 'string]
> > >     ...
> > >     [(procedure? v) 'procedure]))
> > >
> > > Fill in the ... lines (about ten of them), and make a SRFI -- done!
> > >
> > > Shriram
> > >
> > > PS: I can guess the counter-argument you will give.
> >
> > Structs?
> >
> > > I have my
> > >     counter-counter-argment ready. <-;
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> >
>