[Squeak-ev] [Smalltalk syntax on a postcard]

stepken stepken at web.de
Don Mar 22 19:40:09 UTC 2007


*exampleWithNumber:* /x/

"A method that illustrates every part of Smalltalk method syntax

except primitives. It has unary, binary, and keyword messages,

declares arguments and temporaries, accesses a global variable

(but not and instance variable), uses literals (array, character,

symbol, string, integer, float), uses the pseudo variables

true false, nil, self, and super, and has sequence, assignment,

return and cascade. It has both zero argument and one argument blocks."

|y|

true & false not & (nil isNil) ifFalse: [self halt].

y := self size + super size.

#($a #a "a" 1 1.0)

do: [:each | Transcript show: (each class name);

show: ' '].

^ x < y