27 lines
942 B
Factor
27 lines
942 B
Factor
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USING: kernel cocoa cocoa.types alien.c-types locals math sequences
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vectors fry ;
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IN: cocoa.enumeration
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: NS-EACH-BUFFER-SIZE 16 ; inline
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: (allocate-enumeration-buffers) ( -- state stackbuf count )
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"NSFastEnumerationState" <c-object>
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NS-EACH-BUFFER-SIZE "id" <c-array>
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NS-EACH-BUFFER-SIZE ;
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:: (NSFastEnumeration-each) ( object quot state stackbuf count -- )
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object state stackbuf count -> countByEnumeratingWithState:objects:count:
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dup zero? [ drop ] [
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[ stackbuf void*-nth quot call ] each
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object quot state stackbuf count (NSFastEnumeration-each)
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] if ; inline
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: NSFastEnumeration-each ( object quot -- )
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(allocate-enumeration-buffers) (NSFastEnumeration-each) ; inline
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: NSFastEnumeration-map ( object quot -- vector )
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NS-EACH-BUFFER-SIZE <vector> [ '[ @ , push ] NSFastEnumeration-each ] keep ; inline
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: NSFastEnumeration>vector ( object -- vector )
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[ ] NSFastEnumeration-map ;
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