[Newbies] Polymorphic or: with block argument
Sean P. DeNigris
sean at clipperadams.com
Sun Sep 17 13:44:35 UTC 2017
Ralph Johnson wrote
> Yes, when the compiler sees exp or: [ ... ] then it assumes that "exp"
> a boolean-valued expression and generates code that fails if it isn't.
I remember the pain of tripping over these little "everything is a message
send to an object*" sins as a new Smalltalker. I wonder now, with the
incredible speed of Cog, Spur, Sista, etc., if these devil's bargains from
prior decades are still necessary. It would be psychologically satisfying
(and nice for newbies) to remove the asterisk from the principle above.
Sent from: http://forum.world.st/Squeak-Beginners-f107673.html
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