On 2021-05-26 09:43, Ricky Teachey wrote:
These two ideas of a decorator syntax result are not the same:
RESULT A: function decorator
# func = decorator("spam")(func)
RESULT B: variable decorator
# name = decorator("spam")("name")
...because func is passed as an object, but "name" a string representing
the name of the object. Two very different things.
For this reason I think I would agree even more so that the differences
in the decorator behavior would be an extremely significant point of
confusion.
This got me to thinking: what if access to the variable name were
provided by another means, and ONLY when the decorator syntax is employed?
This seems contradictory to me. It looks like you're saying, "We
shouldn't use decorator syntax to represent two different things (object
vs name), but instead decorator syntax should give us access to two
different things (object vs name)." I realize based on your proposal
there is a distinction here but I think it's quite a narrow one and
doesn't resolve the basic problem, which is that currently decorators
operate on objects and these new proposals are about making them operate
on names.
I think there may be value in having some feature that lets us get
access to the name side of an assignment. But I wouldn't call such a
thing a "decorator", nor would I want to use the same @ syntax that is
used for decorators. To me that would be confusing, because the
behavior is totally different. Even with your __decorator_call__
proposal, there's still a jarring shift from, in some cases, using just
the object, and in other cases stuffing a new parameter (the name) into
the parameter list. That seems awkward to me.
--
Brendan Barnwell
"Do not follow where the path may lead. Go, instead, where there is no
path, and leave a trail."
--author unknown
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