31 lines
1.1 KiB
Factor
31 lines
1.1 KiB
Factor
USING: kernel cocoa cocoa.types alien.c-types locals math sequences
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vectors fry libc ;
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IN: cocoa.enumeration
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: NS-EACH-BUFFER-SIZE 16 ; inline
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: (with-enumeration-buffers) ( quot -- )
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"NSFastEnumerationState" heap-size swap '[
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NS-EACH-BUFFER-SIZE "id" heap-size * [
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NS-EACH-BUFFER-SIZE @
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] with-malloc
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] with-malloc ; inline
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:: (NSFastEnumeration-each) ( object quot: ( elt -- ) 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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state NSFastEnumerationState-itemsPtr [ stackbuf ] unless*
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'[ , void*-nth quot call ] each
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object quot state stackbuf count (NSFastEnumeration-each)
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] if ; inline recursive
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: NSFastEnumeration-each ( object quot -- )
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[ (NSFastEnumeration-each) ] (with-enumeration-buffers) ; inline
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: NSFastEnumeration-map ( object quot -- vector )
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NS-EACH-BUFFER-SIZE <vector>
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[ '[ @ , push ] NSFastEnumeration-each ] keep ; inline
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: NSFastEnumeration>vector ( object -- vector )
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[ ] NSFastEnumeration-map ;
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