On 1/13/2021 8:56 PM, Greg Ewing wrote:
On 14/01/21 1:13 pm, Paul Sokolovsky wrote:
But nobody talked about optimizing away generic "pure"-annotated
functions (which would differ from "mathematical" definition of
purity), only about optimizing "pure" *dunder* methods
The same thing applies. If we decide that print() is pure,
then a __bool__ that calls print() is also pure, so there's
nothing wrong with optimising it away, right?
I say 'yes', because the purpose of logging is to document what happens,
and if nothing happens, there is nothing to document. Wrapping a
.__bool__ in a logging decorator might be part of testing it.
--
Terry Jan Reedy
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