GNU Smalltalk Library Reference: Object-VM callbacks

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1.123.19 Object: VM callbacks

badReturnError

Called back when a block performs a bad return.

mustBeBoolean

Called by the system when ifTrue:*, ifFalse:*, and: or or: are sent to anything but a boolean

noRunnableProcess

Called back when all processes are suspended

userInterrupt

Called back when the user presses Ctrl-Break