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