1 ! Copyright (C) 2008 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: functors sequences sequences.private prettyprint.custom
4 kernel words classes math math.vectors.specialization parser
5 alien.c-types byte-arrays accessors summary ;
6 IN: specialized-arrays.functor
8 ERROR: bad-byte-array-length byte-array type ;
10 M: bad-byte-array-length summary
11 drop "Byte array length doesn't divide type width" ;
13 : (underlying) ( n c-type -- array )
14 heap-size * (byte-array) ; inline
16 : <underlying> ( n type -- array )
17 heap-size * <byte-array> ; inline
19 FUNCTOR: define-array ( T -- )
21 A DEFINES-CLASS ${T}-array
22 S DEFINES-CLASS ${T}-sequence
26 byte-array>A DEFINES byte-array>${A}
29 NTH [ T dup c-type-getter-boxer array-accessor ]
30 SET-NTH [ T dup c-setter array-accessor ]
37 { length array-capacity read-only }
38 { underlying byte-array read-only } ;
40 : <A> ( n -- specialized-array ) dup T <underlying> A boa ; inline
42 : (A) ( n -- specialized-array ) dup T (underlying) A boa ; inline
44 : byte-array>A ( byte-array -- specialized-array )
45 dup length T heap-size /mod 0 = [ drop T bad-byte-array-length ] unless
48 M: A clone [ length>> ] [ underlying>> clone ] bi A boa ; inline
50 M: A length length>> ; inline
52 M: A nth-unsafe underlying>> NTH call ; inline
54 M: A set-nth-unsafe underlying>> SET-NTH call ; inline
56 : >A ( seq -- specialized-array ) A new clone-like ;
58 M: A like drop dup A instance? [ >A ] unless ; inline
60 M: A new-sequence drop (A) ; inline
62 M: A equal? over A instance? [ sequence= ] [ 2drop f ] if ;
66 [ T heap-size * ] [ underlying>> ] bi*
71 M: A byte-length underlying>> length ; inline
73 M: A pprint-delims drop \ A{ \ } ;
75 M: A >pprint-sequence ;
77 M: A pprint* pprint-object ;
79 SYNTAX: A{ \ } [ >A ] parse-literal ;
84 A T c-type-boxed-class specialize-vector-words
88 \ <A> >>array-constructor
89 \ (A) >>(array)-constructor
90 \ S >>sequence-mixin-class