[REBOL] Re: On mutability and sameness
From: lmecir:mbox:vol:cz at: 17-Jun-2001 3:47
a sample thought (you need not take it seriously):
> MY MODEL:
> a) All set-path expressions cause something to be mutated.
> The "something" is identified by the set-path up to the
> last #"/" and which part of that "something" is identified by
> what follows the last #"/". Any such "something" is mutable.
A possible POV: once upon a time the time values in Rebol behaved like:
a: 12:30 ; == 12:30
a/hour: 13 ; == 13:30
a ; == 12:30
Back then your rule was incorrect. Your rule hasn't changed since then and
therefore it is still incorrect.