46 lines
1.1 KiB
Factor
46 lines
1.1 KiB
Factor
! Copyright (C) 2005 Slava Pestov.
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! See http://factor.sf.net/license.txt for BSD license.
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IN: inspector
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USING: arrays generic io kernel listener math memory namespaces
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prettyprint sequences words ;
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SYMBOL: inspector-slots
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: sheet-numbers ( sheet -- sheet )
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dup [ peek ] map inspector-slots set
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dup length [ 1+ add* ] 2map ;
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SYMBOL: inspector-stack
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: inspecting ( -- obj ) inspector-stack get peek ;
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: (inspect) ( obj -- )
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dup inspector-stack get push
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dup summary print
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sheet sheet-numbers sheet. ;
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: inspector-help ( -- )
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terpri
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"Object inspector." print
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terpri
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"inspecting ( -- obj ) push current object" print
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"go ( n -- ) inspect nth slot" print
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"up -- return to previous object" print
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"bye -- exit inspector" print ;
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: inspector ( obj -- )
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[
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inspector-help
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terpri
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"inspector " listener-prompt set
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V{ } clone inspector-stack set
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(inspect)
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] listener ;
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: inspect ( obj -- )
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inspector-stack get [ (inspect) ] [ inspector ] if ;
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: go ( n -- ) 1- inspector-slots get nth (inspect) ;
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: up ( -- ) inspector-stack get dup pop* pop (inspect) ;
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