1 ! Copyright (C) 2013 John Benediktsson.
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2 ! See http://factorcode.org/license.txt for BSD license.
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3 USING: accessors hash-sets hash-sets.wrapped kernel parser
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4 sequences sets sets.private vocabs.loader ;
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5 IN: hash-sets.identity
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7 TUPLE: identity-wrapper < wrapped-key identity-hashcode ;
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9 : <identity-wrapper> ( wrapped-key -- identity-wrapper )
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10 dup identity-hashcode identity-wrapper boa ; inline
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12 M: identity-wrapper equal?
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13 over identity-wrapper?
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14 [ [ underlying>> ] bi@ eq? ]
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15 [ 2drop f ] if ; inline
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17 M: identity-wrapper hashcode* nip identity-hashcode>> ; inline
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19 TUPLE: identity-hash-set < wrapped-hash-set ;
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21 : <identity-hash-set> ( n -- ihash-set )
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22 <hash-set> identity-hash-set boa ; inline
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24 M: identity-hash-set wrap-key drop <identity-wrapper> ;
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26 M: identity-hash-set clone
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27 underlying>> clone identity-hash-set boa ; inline
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29 : >identity-hash-set ( members -- ihash-set )
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30 [ <identity-wrapper> ] map >hash-set identity-hash-set boa ; inline
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32 M: identity-hash-set set-like
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33 drop dup identity-hash-set? [ ?members >identity-hash-set ] unless ; inline
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35 SYNTAX: IHS{ \ } [ >identity-hash-set ] parse-literal ;
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37 { "hash-sets.identity" "prettyprint" } "hash-sets.identity.prettyprint" require-when
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