On Mon, Mar 5, 2012 at 8:18 AM, Matthias Felleisen <[email protected]> wrote: > > On Mar 4, 2012, at 11:36 PM, Helmut Rohrbacher wrote: > >> Danny & Matthias, >> >> I hadn't known about structure properties. I think lumping enough syntactic >> sugar onto your syntax definitions, Matthais, might make it feasible to >> reproduce something to provide the functionality I'm looking for. >> >> The only thing is, how do you extend these properties to built-in types like >> LIST and VECTOR? I'm guessing that you'd need to wrap them in a user-defined >> type... > > > I imagine that one could use impersonators for vectors and _mutable_ lists. > -- Matthias
Unfortunately, mpairs do not currently support chaperones or impersonators. -- sam th [email protected] ____________________ Racket Users list: http://lists.racket-lang.org/users
