! Copyright (C) 2008 Slava Pestov.
! See http://factorcode.org/license.txt for BSD license.
USING: functors sequences sequences.private prettyprint.custom
kernel words classes math math.vectors.specialization parser
alien.c-types byte-arrays accessors summary ;
IN: specialized-arrays.functor
ERROR: bad-byte-array-length byte-array type ;
M: bad-byte-array-length summary
drop "Byte array length doesn't divide type width" ;
: (c-array) ( n c-type -- array )
heap-size * (byte-array) ; inline
FUNCTOR: define-array ( T -- )
A DEFINES-CLASS ${T}-array
S DEFINES-CLASS ${T}-sequence
DEFINES <${A}>
(A) DEFINES (${A})
>A DEFINES >${A}
byte-array>A DEFINES byte-array>${A}
A{ DEFINES ${A}{
NTH [ T dup c-type-getter-boxer array-accessor ]
SET-NTH [ T dup c-setter array-accessor ]
WHERE
MIXIN: S
TUPLE: A
{ length array-capacity read-only }
{ underlying byte-array read-only } ;
: ( n -- specialized-array ) dup T A boa ; inline
: (A) ( n -- specialized-array ) dup T (c-array) A boa ; inline
: byte-array>A ( byte-array -- specialized-array )
dup length T heap-size /mod 0 = [ drop T bad-byte-array-length ] unless
swap A boa ; inline
M: A clone [ length>> ] [ underlying>> clone ] bi A boa ; inline
M: A length length>> ; inline
M: A nth-unsafe underlying>> NTH call ; inline
M: A set-nth-unsafe underlying>> SET-NTH call ; inline
: >A ( seq -- specialized-array ) A new clone-like ;
M: A like drop dup A instance? [ >A ] unless ; inline
M: A new-sequence drop (A) ; inline
M: A equal? over A instance? [ sequence= ] [ 2drop f ] if ;
M: A resize
[ drop ] [
[ T heap-size * ] [ underlying>> ] bi*
resize-byte-array
] 2bi
A boa ; inline
M: A byte-length underlying>> length ; inline
M: A pprint-delims drop \ A{ \ } ;
M: A >pprint-sequence ;
M: A pprint* pprint-object ;
SYNTAX: A{ \ } [ >A ] parse-literal ;
INSTANCE: A sequence
INSTANCE: A S
A T c-type-boxed-class specialize-vector-words
T c-type
\ A >>array-class
\ >>array-constructor
\ S >>sequence-mixin-class
drop
;FUNCTOR