15 lines
357 B
Factor
15 lines
357 B
Factor
! Copyright (C) 2004, 2005 Slava Pestov.
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! See http://factor.sf.net/license.txt for BSD license.
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IN: generic
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USING: errors kernel kernel-internals ;
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DEFER: standard-combination
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DEFER: math-combination
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: delegate ( obj -- delegate )
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dup tuple? [ 3 slot ] [ drop f ] if ;
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GENERIC: set-delegate ( delegate tuple -- )
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M: tuple set-delegate 3 set-slot ;
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