Additionally, some primitives are optional, they are only used to
speed up lengthy computations. Like searching in a string or adding
large numbers (ever tried "1000 factorial" ?). If the primitive is
not available, the Smalltalk code will be executed instead.
look at @
the point creation method is sped up using an optional primitive call.
@ y
"Primitive. Answer a Point whose x value is the receiver and whose y
value is the argument. Optional. No Lookup. See Object documentation
whatIsAPrimitive."
<primitive: 18>
^Point x: self y: y
_______________________________________________
Beginners mailing list
[email protected]
http://lists.squeakfoundation.org/mailman/listinfo/beginners
