SYMBOL: can be used anywhere, but you'll notice that if you define it within the M:, it's still available on the outside. It's generally considered contrary to coding conventions to put SYMBOL: within a word body, since it means the same thing as if it's outside of the word body.
Dan On Mon, Jan 12, 2009 at 9:11 AM, Ludovic Kuty <mail...@kuty.be> wrote: > It looks like SYMBOL: can be used anywhere. Thus my example becomes: > > M: rectangle area > SYMBOL: temp > temp [ temp get width>> temp get height>> * ] with-variable ; > > And in fact "\ temp" has no meaning if temp is not defined somewhere. > That's why "\ +" works but not "\ not_defined". The documentation for > DEFER: states that "Due to the way the parser works, words cannot be > referenced before they are defined". > > That answers my second question. However I'm not sure this is the > correct way to express access to multiple slots. > > On 12 Jan 2009, at 15:55, Ludovic Kuty wrote: > >> I thought of doing like this: >> SYMBOL: temp >> M: rectangle area >> temp [ temp get width>> temp get height>> * ] with-variable ; >> >> But now I have an implementation detail (the fact that temp is a >> symbol) that is leaking out of the method body. It doesn't feel right. >> I should be able to avoid SYMBOL and use "\ temp" but Factor curiously >> complains: "Word not found in current vocabulary search path". The \ >> parsing word should avoid trying to execute the word. Any idea are >> welcome. > > > ------------------------------------------------------------------------------ > Check out the new SourceForge.net Marketplace. > It is the best place to buy or sell services for > just about anything Open Source. > http://p.sf.net/sfu/Xq1LFB > _______________________________________________ > Factor-talk mailing list > Factor-talk@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/factor-talk > ------------------------------------------------------------------------------ This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword _______________________________________________ Factor-talk mailing list Factor-talk@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/factor-talk
