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Ingy döt Net 2013-04-10 23:57:08 -07:00
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commit b83f433714
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Task/Polymorphism/Factor/polymorphism.factor Normal file
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QUALIFIED: io ! there already is print in io
GENERIC: print ( shape -- )
TUPLE: point x y ;
C: <point> point ! shorthand constructor definition
M: point print drop "Point" io:print ;
TUPLE: circle radius x y ;
C: <circle> circle
M: circle print drop "Circle" io:print ;