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From: minforth <minforth@gmx.net>
Newsgroups: comp.lang.forth
Subject: Re: Nested definitions
Date: Wed, 2 Jul 2025 18:34:00 +0200
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In-Reply-To: <2025Jul2.171200@mips.complang.tuwien.ac.at>

Am 02.07.2025 um 17:12 schrieb Anton Ertl:
> Ruvim <ruvim.pinka@gmail.com> writes:
>> On 2025-07-02 15:37, albert@spenarnc.xs4all.nl wrote:
>>> Or it has not even know it, if [ is smart enough to compile a jump to
>>> after ].
>>
>> This can be tricky because the following should work:
>>
>>    create foo [ 123 , ] [ 456 ,
>>
>>    : bar  [ ' foo compile, 123 lit, ] ;
> 
> The benefit of defining a normal colon definition inside another colon
> definition eludes me, however.  Maybe mutual recursion, but the need
> is rare and deferred words handle that well.
> 

Many roads lead to Rome. By accident, my quotations have read/write
access to the locals of the parent function, but not vice versa.

Apart from function encapsulation, the benefit is that I don't
have to pass all quotation parameters over the stack, which makes
the code very straightforward and readable.