Mailing List Archive: 49091 messages
  • Home
  • Script library
  • AltME Archive
  • Mailing list
  • Articles Index
  • Site search

[REBOL] Re: Context - code included- 2nd version

From: lmecir:mbox:vol:cz at: 16-Sep-2001 13:48

Hi Romano,
> I've read your new implementation of Contexts. Now it is more near to Core > Doc. Must re-read it in the next days. > For now (but you have abandoned Loaded idea):
I accepted Holger's suggestion.
> 1) I prefer this for a pratical reason: it doesn't change the global
> gen-bind: func [ > {Binds WORD to a specified context.} > word {A value to bind.} > known-word [word!] {A sample word from the target context.} > ] [ > first bind to-block mold :word known-word > ]
As far as I know my definition of GEN-BIND doesn't change the Global Context. (If your findings are different, post an example, please.) Moreover, your implementation has got a "hole" : word: to word! "nonsense:" ; == nonsense: type? word ; == word! type? first to block! mold :word ; == set-word!
> 2) My new s-c? This could change the GC but it is very concise. I have
> which doen't change the Gc but it is more long. Is this bug Free?
same-context?: func [ { find out, if the given Words are bound to the same Context } word1 [any-word!] word2 [word!] ] [ found? any [ all [ undefined? word2 undefined? :word1 ] all [ not special? word2 same? :word1 gen-bind to-word :word1 word2 ] ] ] No, it isn't. It resembles one of my older implementations, but it doesn't yield the correct result e.g. in this case: word1: 'word1 word2: use 'word2 ['word2]
> Ciao (my english is bad) > Romano
Ciao (neither my english is perfect) Ladislav