Well, I didn't try it. It appears that you cannot define a syntax within a begin for syntax. The following works:
(begin-for-syntax (struct proc-struct (name args loe) #:omit-define-syntaxes)) However you'll miss the the structure type descriptor. Another way is to define the struct in a seperate module and to provide all defined and require the module for syntax. This time I checked and it works. Jos > -----Original Message----- > From: Veer [mailto:diggerr...@gmail.com] > Sent: 21 April 2011 15:05 > To: Jos Koot > Cc: users@racket-lang.org > Subject: Re: [racket] How to use structure inside define-syntax ? > > Thanks for reply Jos. > > I still get error when i do > > (begin-for-syntax > (struct proc-struct (name args loe))) > > error: " define-syntaxes: syntax definitions not allowed within > begin-for-syntax ..." > > Sorry , if this is not what you meant. > > > On Thu, Apr 21, 2011 at 6:06 PM, Jos Koot > <jos.k...@telefonica.net> wrote: > > Wrap the definition of the struct in begin-for-syntax. > > Jos > > > >> -----Original Message----- > >> From: users-boun...@racket-lang.org > >> [mailto:users-boun...@racket-lang.org] On Behalf Of Veer > >> Sent: 21 April 2011 14:22 > >> To: users@racket-lang.org > >> Subject: [racket] How to use structure inside define-syntax ? > >> > >> How do I use structure's constructor in define-syntax . > >> > >> I want to do something like this : > >> > >> (struct proc-struct (name args loe)) > >> > >> (define-for-syntax (process ps) > >> #'#t) > >> > >> > >> (define-syntax (procedure stx) > >> (syntax-case stx () > >> [(_ name args e1 e2 ...) > >> (process (proc-struct #'name (syntax->list #'args) > (syntax->list > >> #'(e1 e2 ...))))])) > >> > >> > >> > >> (procedure abc (x y) 2 3) > >> > >> > >> Is there something like struct-for-syntax ? > >> > >> Thanks > >> _________________________________________________ > >> For list-related administrative tasks: > >> http://lists.racket-lang.org/listinfo/users > > > > _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users
