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 : (underlying) ( n c-type -- array )
16 heap-size * (byte-array) ; inline
18 : <underlying> ( n type -- array )
19 heap-size * <byte-array> ; inline
21 GENERIC: underlying-type ( c-type -- c-type' )
23 M: c-type-word underlying-type
24 dup "c-type" word-prop {
25 { [ dup not ] [ drop no-c-type ] }
26 { [ dup pointer? ] [ 2drop void* ] }
27 { [ dup c-type-word? ] [ nip underlying-type ] }
31 M: pointer underlying-type
36 GENERIC: nth-c-ptr ( n seq -- displaced-alien )
37 GENERIC: direct-like ( alien len exemplar -- seq )
39 FUNCTOR: define-array ( T -- )
41 A DEFINES-CLASS ${T}-array
44 <direct-A> DEFINES <direct-${A}>
45 malloc-A DEFINES malloc-${A}
46 A-cast DEFINES ${A}-cast
53 { underlying c-ptr read-only }
54 { length array-capacity read-only } ; final
56 : <direct-A> ( alien len -- specialized-array ) A boa ; inline
58 M: A direct-like drop <direct-A> ; inline
60 : <A> ( n -- specialized-array )
61 [ \ T <underlying> ] keep <direct-A> ; inline
63 : (A) ( n -- specialized-array )
64 [ \ T (underlying) ] keep <direct-A> ; inline
66 M: A clone [ underlying>> clone ] [ length>> ] bi <direct-A> ; inline
68 M: A length length>> ; inline
70 M: A nth-unsafe underlying>> \ T alien-element ; inline
72 M: A nth-c-ptr underlying>> \ T array-accessor drop swap <displaced-alien> ; inline
74 M: A set-nth-unsafe underlying>> \ T set-alien-element ; inline
76 M: A like drop dup A instance? [ \ T >c-array ] unless ; inline
78 M: A new-sequence drop (A) ; inline
80 M: A equal? over A instance? [ sequence= ] [ 2drop f ] if ;
84 [ \ T heap-size * ] [ underlying>> ] bi*
89 M: A element-size drop \ T heap-size ; inline
91 M: A underlying-type drop \ T ;
93 M: A pprint-delims drop \ A{ \ } ;
95 M: A >pprint-sequence ;
97 SYNTAX: A{ \ } [ \ T >c-array ] parse-literal ;
99 INSTANCE: A specialized-array
101 M: A vs+ [ + \ T c-type-clamp ] 2map ; inline
102 M: A vs- [ - \ T c-type-clamp ] 2map ; inline
103 M: A vs* [ * \ T c-type-clamp ] 2map ; inline
105 M: A v*high [ * \ T heap-size neg shift ] 2map ; inline
109 : specialized-array-vocab ( c-type -- vocab )
111 "specialized-arrays.instances." %
112 [ vocabulary>> % "." % ]
117 : direct-slice-unsafe ( from to seq -- seq' )
120 [ 2nip ] 3tri direct-like ; inline
124 : direct-slice ( from to seq -- seq' )
125 check-slice direct-slice-unsafe ; inline
127 : direct-head ( seq n -- seq' ) (head) direct-slice ; inline
128 : direct-tail ( seq n -- seq' ) (tail) direct-slice ; inline
129 : direct-head* ( seq n -- seq' ) from-end direct-head ; inline
130 : direct-tail* ( seq n -- seq' ) from-end direct-tail ; inline
132 : define-array-vocab ( type -- vocab )
134 [ specialized-array-vocab ] [ '[ _ define-array ] ] bi
137 ERROR: specialized-array-vocab-not-loaded c-type ;
139 M: c-type-word c-array-constructor
141 dup [ name>> "<" "-array>" surround ] [ specialized-array-vocab ] bi lookup
142 [ ] [ specialized-array-vocab-not-loaded ] ?if ; foldable
144 M: pointer c-array-constructor drop void* c-array-constructor ;
146 M: c-type-word c-(array)-constructor
148 dup [ name>> "(" "-array)" surround ] [ specialized-array-vocab ] bi lookup
149 [ ] [ specialized-array-vocab-not-loaded ] ?if ; foldable
151 M: pointer c-(array)-constructor drop void* c-(array)-constructor ;
153 M: c-type-word c-direct-array-constructor
155 dup [ name>> "<direct-" "-array>" surround ] [ specialized-array-vocab ] bi lookup
156 [ ] [ specialized-array-vocab-not-loaded ] ?if ; foldable
158 M: pointer c-direct-array-constructor drop void* c-direct-array-constructor ;
160 M: c-type-word c-array-type
162 dup [ name>> "-array" append ] [ specialized-array-vocab ] bi lookup
163 [ ] [ specialized-array-vocab-not-loaded ] ?if ; foldable
165 M: pointer c-array-type drop void* c-array-type ;
167 M: c-type-word c-array-type?
169 dup [ name>> "-array?" append ] [ specialized-array-vocab ] bi lookup
170 [ ] [ specialized-array-vocab-not-loaded ] ?if ; foldable
172 M: pointer c-array-type? drop void* c-array-type? ;
174 SYNTAX: SPECIALIZED-ARRAYS:
175 ";" [ parse-c-type define-array-vocab use-vocab ] each-token ;
177 SYNTAX: SPECIALIZED-ARRAY:
178 scan-c-type define-array-vocab use-vocab ;
180 { "specialized-arrays" "prettyprint" } "specialized-arrays.prettyprint" require-when
182 { "specialized-arrays" "mirrors" } "specialized-arrays.mirrors" require-when