[REBOL] Re: Function Context Query
From: robbo1mark:aol at: 4-Dec-2001 4:21
Joel Neeely/ everybody,
perhaps you misunderstood my previous post,
my concern was that uninitialised local words
are treated differently between contexts and
function-contexts.
Please see below,
>> use [my-word] [print unset? get/any 'my-word]
true
>> my-func: has [my-word] [print unset? get/any 'my-word]
>> my-func
false
>> my-func: has [my-word] [print none? get/any 'my-word]
>> my-func
true
>>
In a use context they are initialised to the unset! value if they are not set BUT in
a function context they are initialised to the none! value and that's what bothers me.
I don't see a reason or logic for the distinction, can anybody please explain why these
contexts are treated differently, as from what I can see it is possible to use uninitialised
words in function contexts, well they're not actually uninitialised as REBOL sets them
to 'none during function context creation,
but WHY?
What makes function contexts a special case?
cheers,
Mark Dickson
