Leslie Nielsen explains how to declare variable types
in squeak.
"surely you can't be serious?!" "
"of course i'm serious...
And stop calling me Shirley".
--Leslie Nielsen -airplane-
The way you declare a serious variable type in squeak
is to write an instance message for the class Joking
that does nothing when asked #surelyYouCantBeSerious
and maybe another for the class Serious that tells you
to stop calling it shirley. ;-)
Then in any method needing a type check you just ask
the variable the question and proceed.
QED.
Yours in curiosity and service, --Jerome Peace
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