22 lines
560 B
Factor
22 lines
560 B
Factor
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! Copyright (C) 2008 Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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USING: accessors models kernel assocs ;
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IN: models.mapping
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TUPLE: mapping < model assoc ;
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: <mapping> ( models -- mapping )
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f mapping new-model
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over values >>dependencies
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swap >>assoc ;
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M: mapping model-changed
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nip [ assoc>> [ value>> ] assoc-map ] keep set-model ;
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M: mapping model-activated
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dup model-changed ;
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M: mapping update-model
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[ value>> ] [ assoc>> ] bi
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[ swapd at set-model ] curry assoc-each ;
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