1 ! Copyright (C) 2008, 2010 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: accessors alien alien.c-types alien.data alien.parser
4 assocs byte-arrays classes compiler.units functors kernel lexer
5 libc math math.vectors math.vectors.private namespaces
6 parser prettyprint.custom sequences sequences.private strings
7 summary vocabs vocabs.loader vocabs.parser vocabs.generated
8 words fry combinators make ;
11 MIXIN: specialized-array
13 INSTANCE: specialized-array sequence
15 GENERIC: direct-array-syntax ( obj -- word )
17 ERROR: bad-byte-array-length byte-array type ;
19 M: bad-byte-array-length summary
20 drop "Byte array length doesn't divide type width" ;
22 ERROR: not-a-byte-array alien ;
24 M: not-a-byte-array summary
25 drop "Not a byte array" ;
27 : (underlying) ( n c-type -- array )
28 heap-size * (byte-array) ; inline
30 : <underlying> ( n type -- array )
31 heap-size * <byte-array> ; inline
35 FUNCTOR: define-array ( T -- )
37 A DEFINES-CLASS ${T}-array
40 <direct-A> DEFINES <direct-${A}>
41 malloc-A DEFINES malloc-${A}
43 A-cast DEFINES ${A}-cast
50 { underlying c-ptr read-only }
51 { length array-capacity read-only } ; final
53 : <direct-A> ( alien len -- specialized-array ) A boa ; inline
55 : <A> ( n -- specialized-array )
56 [ \ T <underlying> ] keep <direct-A> ; inline
58 : (A) ( n -- specialized-array )
59 [ \ T (underlying) ] keep <direct-A> ; inline
61 : malloc-A ( len -- specialized-array )
62 [ \ T heap-size calloc ] keep <direct-A> ; inline
64 : A-cast ( byte-array -- specialized-array )
65 binary-object \ T heap-size /mod 0 =
66 [ <direct-A> ] [ drop \ T bad-byte-array-length ] if ; inline
68 M: A clone [ underlying>> clone ] [ length>> ] bi <direct-A> ; inline
70 M: A length length>> ; inline
72 M: A nth-unsafe underlying>> \ T alien-element ; inline
74 M: A set-nth-unsafe underlying>> \ T set-alien-element ; inline
76 : >A ( seq -- specialized-array ) A new clone-like ;
78 M: A like drop dup A instance? [ >A ] unless ; inline
80 M: A new-sequence drop (A) ; inline
82 M: A equal? over A instance? [ sequence= ] [ 2drop f ] if ;
86 [ \ T heap-size * ] [ underlying>> ] bi*
91 M: A element-size drop \ T heap-size ; inline
93 M: A direct-array-syntax drop \ A@ ;
95 M: A pprint-delims drop \ A{ \ } ;
97 M: A >pprint-sequence ;
99 SYNTAX: A{ \ } [ >A ] parse-literal ;
100 SYNTAX: A@ scan-object scan-object <direct-A> suffix! ;
102 INSTANCE: A specialized-array
104 M: A vs+ [ + \ T c-type-clamp ] 2map ; inline
105 M: A vs- [ - \ T c-type-clamp ] 2map ; inline
106 M: A vs* [ * \ T c-type-clamp ] 2map ; inline
108 M: A v*high [ * \ T heap-size neg shift ] 2map ; inline
112 GENERIC: underlying-type ( c-type -- c-type' )
114 M: c-type-word underlying-type
115 dup "c-type" word-prop {
116 { [ dup not ] [ drop no-c-type ] }
117 { [ dup pointer? ] [ 2drop void* ] }
118 { [ dup c-type-word? ] [ nip underlying-type ] }
122 M: pointer underlying-type
125 : specialized-array-vocab ( c-type -- vocab )
127 "specialized-arrays.instances." %
128 [ vocabulary>> % "." % ]
135 : define-array-vocab ( type -- vocab )
137 [ specialized-array-vocab ] [ '[ _ define-array ] ] bi
140 ERROR: specialized-array-vocab-not-loaded c-type ;
142 M: c-type-word c-array-constructor
144 dup [ name>> "<" "-array>" surround ] [ specialized-array-vocab ] bi lookup
145 [ ] [ specialized-array-vocab-not-loaded ] ?if ; foldable
147 M: pointer c-array-constructor drop void* c-array-constructor ;
149 M: c-type-word c-(array)-constructor
151 dup [ name>> "(" "-array)" surround ] [ specialized-array-vocab ] bi lookup
152 [ ] [ specialized-array-vocab-not-loaded ] ?if ; foldable
154 M: pointer c-(array)-constructor drop void* c-(array)-constructor ;
156 M: c-type-word c-direct-array-constructor
158 dup [ name>> "<direct-" "-array>" surround ] [ specialized-array-vocab ] bi lookup
159 [ ] [ specialized-array-vocab-not-loaded ] ?if ; foldable
161 M: pointer c-direct-array-constructor drop void* c-direct-array-constructor ;
163 SYNTAX: SPECIALIZED-ARRAYS:
164 ";" [ parse-c-type define-array-vocab use-vocab ] each-token ;
166 SYNTAX: SPECIALIZED-ARRAY:
167 scan-c-type define-array-vocab use-vocab ;
169 { "specialized-arrays" "prettyprint" } "specialized-arrays.prettyprint" require-when
171 { "specialized-arrays" "mirrors" } "specialized-arrays.mirrors" require-when