I've just pushed a repair for this bug. Thanks for the report!
> On Jul 20, 2015, at 12:47 PM, Stephen Chang <[email protected]> wrote: > > The following code produces a seg fault with the new expander (today's > build) in the scenario described below: > > file1.rkt: > > #lang racket > (require (for-syntax syntax/parse)) > > (define-syntax (define-constructor stx) > (syntax-parse stx > [(_ X:id) > #'(define-syntax X > (syntax-parser > [(_ x (... ...)) #'(void x (... ...))]))])) > > (define-constructor C) > > (define-syntax define-alias > (syntax-parser > [(_ alias:id e) > #:with e+ (local-expand #'e 'expression null) > #'(define-syntax alias > (syntax-parser [x:id #'e+]))])) > > (define-alias D (C 1)) > > file2.rkt: > (require "file1.rkt") > > A few notes: > - running file2.rkt in DrRacket with the new expander crashes drracket > with the error: > > SIGSEGV MAPERR si_code 1 fault on addr (nil) > Aborted > > - running file2.rkt with racket (new expander) produces no error > - running file2.rkt produced no error with the old expander > - running file1.rkt with either racket or drracket, new expander or > old expander, produces no error > > I'm not completely caught up with the new expander threads so > apologies in advance if someone has already raised this issue. > > -- > You received this message because you are subscribed to the Google Groups > "Racket Developers" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/racket-dev/CAFfiA1LDBwHox-1iP9UdDQOKSLMU-TbhUVtbsd-TLrNNO0eB_g%40mail.gmail.com. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Racket Developers" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/racket-dev/AFC6C489-57DB-424F-9CA3-D61E83653442%40cs.utah.edu. For more options, visit https://groups.google.com/d/optout.
