Expected behavior. Syntax properties and source locations are stripped
from syntax objects when bytecode is marshaled (eg, to a .zo file). See
the first paragraph of http://docs.racket-lang.org/reference/stxprops.html.
Ryan
On 08/11/2015 02:47 PM, Stephen Chang wrote:
file A.rkt:
#lang racket
(require (for-syntax syntax/parse))
(provide test)
(define-syntax (test stx)
(syntax-parse stx
[_
#:when (displayln (syntax-property #'[1] 'paren-shape))
#'(void)]))
(test)
file B.rkt:
#lang racket
(require "A.rkt")
(test)
Running B.rkt in drracket (version 6.2.900.6) produces:
[
#f
Is this expected behavior or a bug?
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