This works:

counter := Class new��
���� �� �� �� �� �� ��superclass: Object;��
���� �� �� �� �� �� ��addInstVarNamed: 'counter';��
���� �� �� �� �� �� ��compile: 'initialize��
���� �� �� �� �� �� �� �� �� �� �� �� �� counter := 0';
���� �� �� �� �� �� ��compile: 'counterString��
���� �� �� �� �� �� �� �� �� �� �� �� �� ^ counter asString';
���� �� �� �� �� �� ��compile: 'increment��
���� �� �� �� �� �� �� �� �� �� �� �� �� counter := counter + 1.��
���� �� �� �� �� �� �� �� �� �� �� �� �� self changed:#counterString';
���� �� �� �� �� �� ��compile: 'decrement��
���� �� �� �� �� �� �� �� �� �� �� �� �� counter := counter - 1.��
���� �� �� �� �� �� �� �� �� �� �� �� �� self changed:#counterString';
���� �� �� �� �� �� ��new.

(UITheme builder newColumn: {
����UITheme builder newLabelFor: counter getLabel: #counterString getEnabled: nil.
����UITheme builder newRow: {
���� ��UITheme builder newButtonFor: counter action: #increment label: '+' help: nil.
���� ��UITheme builder newButtonFor: counter action: #decrement label: '-' help: nil.
����}
}) openInWindowLabeled: 'Counter example'.



This one crashes the VM (tried on PharoOneClick 1.2 OSX, Cog and StackVM):

(Class new
����superclass: StringMorph;
����compile: 'step self contents: Time now printString';
����new) �� ��
���� ��openCenteredInWorld��



Any idea ?



Laurent Laffont -��@lolgzs

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