[racket] help about a macro that uses a struct define with "make-struct-type"

> (define-syntax (mm stx)
>   (syntax-case stx ()                
>      [(_ input ...)
>          (let* ((l1 (syntax '(input ...)))
>                 (templates (... process/and/recognize msets in
> l1 ...)))
>            (datum->syntax stx 
>                          `(lambda (x) ,(inject-code
> patterns)) ;mistake
                         `(lambda (x) ,(inject-code templates))
>  stx))])) 

Sorry, I did a mistake in the macro example...

Cheers,
Maurizio.