[REBOL] Re: (No subject)Date: Thu, 26 Oct 2000 21:40:27 -0500
From: jschuhr::hotmail::com at: 26-Oct-2000 19:39
Would it also complicate deeply nested paths?
For example:
house: make object! [
kitchen-clock: now/time
]
meal-times: make object! [
dinner: house/kitchen-clock
]
>> meal-times/dinner
How would one go about extracting the final value of "now/time" ?
--John
----- Original Message -----
From: Carl Sassenrath
Sent: 12:00 AM
To: [rebol-list--rebol--com]
Subject:
I withdraw the suggestion. Although it's a two line change to the
interpreter, it creates an exception in evaluation semantics, and
that is never good.
The use of :t for general expression traversing is a requirement
anyway, due to parens and functions. The :t works fine here.
-Carl
At 10/26/00 06:46 PM -0700, you wrote:
>I've been annoyed for a while that:
>
>>> obj: make object! [t: first [now/time 1 2]]
>>> obj/t
>== now/time
>
>But:
>
>>> t: first [now/time 1 2]
>== now/time
>>> t
>== 18:35:24
>
>This occurs because paths are aggressively evaluated.
>It's sure cute, but it gets in the way of useful code
>(like REBOL/Link desktop implementation).
>
>I'm seriously thinking of changing this, so that last
>expression would become:
>
>>> t
>== now/time
>
>That is, indirectly referenced paths are by default not
>evaluated.
>
>Comments?
>
>-Carl
>
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