.@gmail.com] On
Behalf Of Jens Axel Søgaard
Sent: jueves, 27 de agosto de 2015 17:35
To: Jos Koot
Cc: Racket-Users List
Subject: Re: [racket-users] namespace-undefine-variable! question
The issue here is whether the namespance's identifier mapping is used or
not.
The documentation fo
> *From:* jensaxelsoega...@gmail.com [mailto:jensaxelsoega...@gmail.com] *On
> Behalf Of *Jens Axel Søgaard
> *Sent:* jueves, 27 de agosto de 2015 17:35
> *To:* Jos Koot
> *Cc:* Racket-Users List
> *Subject:* Re: [racket-users] namespace-undefine-variable! question
>
> The issue
playing around.
Thanks for your comment, Jos
_
From: Deren Dohoda [mailto:deren.doh...@gmail.com]
Sent: jueves, 27 de agosto de 2015 20:19
To: Jos Koot
Cc: Jens Axel Søgaard; Racket-Users List
Subject: Re: [racket-users] namespace-undefine-variable! question
Hi Jos,
>But some of them
---
> *From:* jensaxelsoega...@gmail.com [mailto:jensaxelsoega...@gmail.com] *On
> Behalf Of *Jens Axel Søgaard
> *Sent:* jueves, 27 de agosto de 2015 17:35
> *To:* Jos Koot
> *Cc:* Racket-Users List
> *Subject:* Re: [racket-users] namespace-undefine-variable! quest
hanks again,
Jos
_
From: jensaxelsoega...@gmail.com [mailto:jensaxelsoega...@gmail.com] On
Behalf Of Jens Axel Søgaard
Sent: jueves, 27 de agosto de 2015 17:35
To: Jos Koot
Cc: Racket-Users List
Subject: Re: [racket-users] namespace-undefine-variable! question
The issue here is whethe
The issue here is whether the namespance's identifier mapping is used or
not.
The documentation for namespace-undefine-variable! says:
Removes the sym variable, if any, in the top-level environment of
namespace in
its base phase
.
The namespace’s identifier
mapping
(see Namespaces
)
is
The following works:
#lang racket/base
#;1 (define ns (make-base-namespace))
#;2 (namespace-variable-value 'list #t (λ () 'not-found) ns)
; -> #
#;3 (namespace-set-variable-value! 'list 'whatever (λ () #f) ns)
#;4 (namespace-undefine-variable! 'list ns)
#;5 (namespace-variable-value 'list#t (λ ()
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