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[REBOL] Re: Function Context Query

From: greggirwin:mindspring at: 4-Dec-2001 13:40

Hi Romano, et al << Mine is only an idea, i'm not sure this is the true reason, but a none value can be used directly in expression like: if ref [...] either ref [][] An unset value would generate an error in these cases. >> That's exactly what I was thinking. I have no clue about the inner workings, but I can say, from my persepctive, that I wouldn't want to use unset? to check for refinements. The current approach makes for very readable code IMO. --Gregg