> A `define-values` in a signature adds a definition to any *importing*
> context (in contrast to `define-values-for-export` which adds a
> definition in any *exporting* context). The `define-values/invoke-unit`
> form "imports" the signature into the definition context.
I reread the documentation
There is some documentation in the pre-release docs at
http://www.cs.utah.edu/plt/snapshots/current/doc/ts-reference/Typed_Classes.html?q=Class
#:implements should be used inside of a Class type form.
The following is an example from the documentation:
> (define-type Point<%> (Class (field [x
I'm trying to make sense of how prefix/rename work for signatures, but in
trying to run some examples the actual implementation doesn't seem to match
either my intuition or the documentation.
For example I have the following simple signature:
(define-signature a^ (a))
I then try to build a ne
I've been digging in to this some more, and it seems that the prefix form works
backwards on a sig-spec, for example:
(define-signature a^ (a))
(define-signature dcc^ ((open (prefix d: (prefix c: (prefix c: a^))
(define d@ (unit (import dcc^) (export) c:c:d:a))
(unit (import)
(export (
Have you looked into Typed Racket?
http://docs.racket-lang.org/ts-guide/index.html
You can write things similar to the following:
(define (f [x : Number]) : Number x)
- Original Message -
From: "קוראל אלימלך"
To: users@racket-lang.org
Sent: Sunday, July 20, 2014 7:04:39 AM GMT -05:0
I'm attaching a model of the simply typed lambda calculus which demonstrates
the issue. The file includes a language definition, the necessary judgment
forms, and a few macros for generating and timing programs of a given size.
I hope this helps.
Thanks
Dan
- Original Message -
From:
Keywords should be followed by an id+ctc as described in the documentation, so
something like the following should work
(->i ([lst list?])
(#:foo [foo (lst) foo?])
(result list?))
Hope this helps
Dan
- Original Message -
From: "Kevin Forchione"
To: "Racket Users"
Sent:
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