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Re: [Chicken-users] wrong number of arguments to continuation when escap
From: |
Peter Bex |
Subject: |
Re: [Chicken-users] wrong number of arguments to continuation when escaping? |
Date: |
Thu, 18 Jul 2019 07:40:35 +0200 |
User-agent: |
Mutt/1.10.1 (2018-07-13) |
On Thu, Jul 18, 2019 at 06:43:06AM +0200, Marco Maggi wrote:
> I do not understand why some place expects 1 argument. The problem goes
> away if I replace:
>
> (escape)
>
> with:
>
> (escape 1)
Hi Marco,
This is a known "issue", see #1390 and #1601. Improving this so
that such non-explicit "value" continuations accept different argument
counts would have a big impact on performance because every single
continuation would then need to start checking its argument count.
It's unfortunate, but easy to fix; just use something like "receive"
or "call-with-values" to explicitly allow the continuation to handle
multiple values.
Cheers,
Peter
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