13 lines
475 B
Factor
13 lines
475 B
Factor
USING: accessors models models.arrow inverse kernel ;
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IN: models.illusion
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TUPLE: illusion < arrow ;
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: <illusion> ( model quot -- illusion )
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illusion new V{ } clone >>connections V{ } clone >>dependencies 0 >>ref
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swap >>quot over >>model [ add-dependency ] keep dup activate-model ;
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: backtalk ( value object -- )
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[ quot>> [undo] call( a -- b ) ] [ model>> ] bi set-model ;
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M: illusion update-model ( model -- ) [ [ value>> ] keep backtalk ] with-locked-model ; |