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Re: [Chicken-users] Internal Definitions / begin
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From: |
Peter Bex |
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Subject: |
Re: [Chicken-users] Internal Definitions / begin |
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Date: |
Mon, 16 Jul 2018 16:11:31 +0200 |
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User-agent: |
NeoMutt/20170113 (1.7.2) |
On Mon, Jul 16, 2018 at 03:51:09PM +0200, Martin Schneeweis wrote:
> Hi,
>
> is it expected behaviour that (a) does not work but (b) does?
yeah, this is a bit unexpected, but "let" will start a new
definition body whereas "begin" does not. Try it in another
Scheme, you'll see the same thing.
CHICKEN extends the standard already a little bit by being more
lenient in where internal defines may be placed, but it's not
a free-for-all.
In CHICKEN 4 we don't detect illegal internal defines, and they
will actually "fall through" and be treated as global defines,
which is a total mindfuck. In CHICKEN 5 we've improved the situation
by raising an error when an illegally-placed define is detected.
Cheers,
Peter
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