10 lines
422 B
Smalltalk
10 lines
422 B
Smalltalk
!Block methodsFor:'looping'!
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loopWithExit
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"the receiver must be a block of one argument. It is evaluated in a loop forever,
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and is passed a block, which, if sent a value:-message, will exit the receiver block,
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returning the parameter of the value:-message. Used for loops with exit in the middle."
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|exitBlock|
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exitBlock := [:exitValue | ^ exitValue].
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[true] whileTrue:[ self value:exitBlock ]
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