1 ! Copyright (C) 2008, 2009 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 : (underlying) ( n c-type -- array )
23 heap-size * (byte-array) ; inline
25 : <underlying> ( n type -- array )
26 heap-size * <byte-array> ; inline
30 FUNCTOR: define-array ( T -- )
32 A DEFINES-CLASS ${T}-array
35 <direct-A> DEFINES <direct-${A}>
36 malloc-A DEFINES malloc-${A}
38 byte-array>A DEFINES byte-array>${A}
43 NTH [ T dup c-type-getter-boxer array-accessor ]
44 SET-NTH [ T dup c-setter array-accessor ]
49 { underlying c-ptr read-only }
50 { length array-capacity read-only } ; final
52 : <direct-A> ( alien len -- specialized-array ) A boa ; inline
54 : <A> ( n -- specialized-array )
55 [ \ T <underlying> ] keep <direct-A> ; inline
57 : (A) ( n -- specialized-array )
58 [ \ T (underlying) ] keep <direct-A> ; inline
60 : malloc-A ( len -- specialized-array )
61 [ \ T heap-size calloc ] keep <direct-A> ; inline
63 : byte-array>A ( byte-array -- specialized-array )
64 >c-ptr dup length \ T heap-size /mod 0 =
65 [ drop \ T bad-byte-array-length ] unless
68 M: A clone [ underlying>> clone ] [ length>> ] bi <direct-A> ; inline
70 M: A length length>> ; inline
72 M: A nth-unsafe underlying>> NTH call ; inline
74 M: A set-nth-unsafe underlying>> SET-NTH call ; 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 byte-length length \ 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: string (underlying-type) c-types get at ;
115 M: word (underlying-type) "c-type" word-prop ;
117 : underlying-type ( c-type -- c-type' )
118 dup (underlying-type) {
119 { [ dup not ] [ drop no-c-type ] }
120 { [ dup c-type-name? ] [ nip underlying-type ] }
124 : specialized-array-vocab ( c-type -- vocab )
126 "specialized-arrays.instances." %
127 [ vocabulary>> % "." % ]
134 : define-array-vocab ( type -- vocab )
136 [ specialized-array-vocab ] [ '[ _ define-array ] ] bi
139 M: c-type-name require-c-array define-array-vocab drop ;
141 ERROR: specialized-array-vocab-not-loaded c-type ;
143 M: c-type-name c-array-constructor
145 dup [ name>> "<" "-array>" surround ] [ specialized-array-vocab ] bi lookup
146 [ ] [ specialized-array-vocab-not-loaded ] ?if ; foldable
148 M: c-type-name c-(array)-constructor
150 dup [ name>> "(" "-array)" surround ] [ specialized-array-vocab ] bi lookup
151 [ ] [ specialized-array-vocab-not-loaded ] ?if ; foldable
153 M: c-type-name c-direct-array-constructor
155 dup [ name>> "<direct-" "-array>" surround ] [ specialized-array-vocab ] bi lookup
156 [ ] [ specialized-array-vocab-not-loaded ] ?if ; foldable
158 SYNTAX: SPECIALIZED-ARRAYS:
159 ";" parse-tokens [ parse-c-type define-array-vocab use-vocab ] each ;
161 SYNTAX: SPECIALIZED-ARRAY:
162 scan-c-type define-array-vocab use-vocab ;
164 "prettyprint" vocab [
165 "specialized-arrays.prettyprint" require
169 "specialized-arrays.mirrors" require