hashtables.numbers: adding number-hashcode version of hashtables.

extra/hashtables/numbers/authors.txt

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+John Benediktsson

extra/hashtables/numbers/numbers-tests.factor

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+! Copyright (C) 2013 John Benediktsson
+! See http://factorcode.org/license.txt for BSD license
+
+USING: assocs hashtables.numbers kernel literals sequences
+tools.test ;
+
+IN: hashtables.numbers.tests
+
+[ 1000 ] [ 3/2 NH{ { 1.5 1000 } } at ] unit-test
+
+[ 1001 ] [
+    1001 1.5 NH{ { 3/2 1000 } }
+    [ set-at ] [ at ] 2bi
+] unit-test
+
+[ 1001 ] [
+    NH{ } clone 1001 1.5 pick set-at
+    3/2 of
+] unit-test
+
+[ { { 1.0 1000 } } ] [ NH{ { 1.0 1000 } } >alist ] unit-test
+

extra/hashtables/numbers/numbers.factor

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+! Copyright (C) 2013 John Benediktsson
+! See http://factorcode.org/license.txt for BSD license
+
+USING: accessors assocs combinators hashtables
+hashtables.wrapped kernel math math.hashcodes parser
+vocabs.loader ;
+
+IN: hashtables.numbers
+
+TUPLE: number-wrapper < wrapped-key ;
+
+C: <number-wrapper> number-wrapper
+
+M: number-wrapper equal?
+    over number-wrapper?
+    [ [ underlying>> ] bi@ number= ]
+    [ 2drop f ] if ; inline
+
+M: number-wrapper hashcode*
+    nip underlying>> number-hashcode ; inline
+
+TUPLE: number-hashtable < wrapped-hashtable ;
+
+: <number-hashtable> ( n -- shashtable )
+    <hashtable> number-hashtable boa ; inline
+
+M: number-hashtable wrap-key drop <number-wrapper> ;
+
+M: number-hashtable clone
+    underlying>> clone number-hashtable boa ; inline
+
+: >number-hashtable ( assoc -- shashtable )
+    [ assoc-size <number-hashtable> ] keep assoc-union! ;
+
+M: number-hashtable new-assoc drop <number-hashtable> ;
+
+SYNTAX: NH{ \ } [ >number-hashtable ] parse-literal ;
+
+{ "hashtables.numbers" "prettyprint" } "hashtables.numbers.prettyprint" require-when

extra/hashtables/numbers/prettyprint/prettyprint.factor

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+! Copyright (C) 2013 John Benediktsson
+! See http://factorcode.org/license.txt for BSD license
+
+USING: hashtables.numbers kernel prettyprint.custom ;
+
+IN: hashtables.numbers
+
+M: number-hashtable pprint-delims drop \ NH{ \ } ;