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[REBOL] Re: to-block bug?

From: brett:codeconscious at: 14-Aug-2002 10:31

Hi Ashley,
> Anyone care to explain why a fails and b works even though they are > [apparently] identical?
Same words - different (or missing context).
> >> a: [btn green] > == [btn green]
These words are part of global context. The processing of LOADing them gives them this context by default. Same as using LOAD "btn green"
> >> b: to-block "btn green" > == [btn green]
To-block returns a block with words in it, but the words are not automatically given a context.
> >> view layout a > >> view layout b > ** Script Error: green word has no context > ** Where: do-facets > ** Near: green
For the global context, the word GREEN is set to the value 0.255.0. For a word to have a value, it can only be within a given context, and since the word GREEN in b has no context it cannot have a value. Sum up, the words in A have the same names as the words in B, but they are different words. The words in A have a context set for them while those in B do not have a context. Regards, Brett.