annotate arrows/afield.m @ 6:0ce3c2070089
Removed duplicate code and fixed doc in timed_action.
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samer |
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Mon, 14 Jan 2013 14:33:37 +0000 |
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672052bd81f8 |
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line source |
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1 % afield - arrow to extract named field from structure
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2 %
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3 % afield :: N:string ~'field name' -> arrow({struct{N::T;}, {T}, empty).
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4 %
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5 % If input is structure with a field named N of type T,
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6 % the single output is of type T.
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7 function o=afield(nm,sz)
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8 o=arr(@(x)getfield(x,nm),'sizefn',@(s){sz});
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9 end
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