On Fri, Aug 19, 2016 at 2:50 PM, Joachim Breitner
Hi,
Am Freitag, den 19.08.2016, 11:16 -0700 schrieb Theodore Lief Gannon:
Well... there's that rather worrisome introductory paragraph of the Data.Composition docs, though:
"This module is for convenience and demonstrative purposes more than it is for providing actual value. I do not recommend that you rely on this module for performance-sensitive code. Because this module is not based on Prelude's (.), some chances at optimization might be missed by your compiler."
I wonder if that is really something to worry about. Prelude’s (.) is not special in any way:
<snip>
The INLINE pragma and the definition with the right arity could be used in Data.Composition as well, and it would yield the same results.
Any RULEs involving Prelude’s (.) would need to be copied as well.
--
Dave Menendez