42 lines
1.2 KiB
Factor
42 lines
1.2 KiB
Factor
! Copyright (C) 2008 Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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USING: accessors arrays sequences kernel sequences assocs
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namespaces stack-checker.recursive-state.tree ;
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IN: stack-checker.recursive-state
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TUPLE: recursive-state word words quotations inline-words ;
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: prepare-recursive-state ( word rstate -- rstate )
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swap >>word
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f >>quotations
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f >>inline-words ; inline
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: initial-recursive-state ( word -- state )
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recursive-state new
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f >>words
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prepare-recursive-state ; inline
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f initial-recursive-state recursive-state set-global
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: add-recursive-state ( word -- rstate )
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recursive-state get clone
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[ word>> dup ] keep [ store ] change-words
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prepare-recursive-state ;
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: add-local-quotation ( recursive-state quot -- rstate )
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swap clone [ dupd store ] change-quotations ;
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: add-inline-word ( word label -- rstate )
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swap recursive-state get clone
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[ store ] change-inline-words ;
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: recursive-word? ( word -- ? )
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recursive-state get 2dup word>> eq?
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[ 2drop t ] [ words>> lookup ] if ;
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: inline-recursive-label ( word -- label/f )
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recursive-state get inline-words>> lookup ;
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: recursive-quotation? ( quot -- ? )
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recursive-state get quotations>> lookup ;
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