If you take this program (which is a lot like the implementation of
`racket/fixnum`):
#lang racket/base
(require '#%flfxnum
racket/private/vector-wraps
racket/unsafe/ops
(for-syntax racket/base))
(define-vector-wraps "fxvector"
"fixnum?" fixnum?
fxvector? fxvector-length fxvector-ref fxvector-set! make-fxvector
unsafe-fxvector-ref unsafe-fxvector-set! unsafe-fxvector-length
in-fxvector*
in-fxvector
for/fxvector
for*/fxvector
fxvector-copy
0)
And run it in the macro stepper with macro hiding off, at the end you
get a fully-expanded module where the first definition is
`:fXvector-gen`. However, if you click on this identifier, either in
the definition or in a subsequent use, it says "Apparent identifier
binding: none" (which means that `identifier-binding` returns #f,
which can be confirmed on the expanded syntax).
How can this happen? Is it a bug in something, or a special case that
I didn't expect?
Sam
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