Feature #15373
closed
Proposal: Enable refinements to `#method` and `#instance_method`
Description
Proposal enable refinements to #method and #instance_method.
It can be used in the following cases.
# default call to #pp
module P2PP
refine Kernel do
def p obj
pp obj
end
end
end
using P2PP
# call to Kernel.#pp
[1, 2, 3].map(&method(:p))
Also, when checking the defined position as follows, the refine place is reflected.
module P2PP
refine Kernel do
def p obj
pp obj
end
end
end
# Output to refine defined position
# Before
p method(:p).source_location
# => nil
p Kernel.instance_method(:p).source_location
# => nil
using P2PP
# After
p method(:p).source_location
# => ["../ruby/test.rb", 4]
p Kernel.instance_method(:p).source_location
# => ["../ruby/test.rb", 4]
I want .: operators to work.
https://bugs.ruby-lang.org/issues/13581
pull reqiest: https://github.com/ruby/ruby/pull/2034
Updated by shevegen (Robert A. Heiler) about 6 years ago
I won't comment on the .: here and not about the first part
of the suggestions here either, but about .source_location
I agree as that would make sense (to me at the least).
Returning something that exists is better than returning
nil in this context. In a REPL this can be useful too since
one can e. g. automatically "jump" to the code in question
and modify it (I think pry is doing something like this).
I think matz has to decide whether he wants that functionality
to work (in regards to .source_location; I don't refer to
the other parts of the issue).
If approved I would then recommend, if it is changed, to
also add a comment for the documentation of
.source_location to mention that it works with refinements
too, and perhaps add an example, similar to the one
in this issue request:
https://ruby-doc.org/core/Method.html#method-i-source_location
Updated by osyo (manga osyo) about 6 years ago
Thank you! shevegen :)
Updated by nobu (Nobuyoshi Nakada) almost 6 years ago
- Status changed from Open to Closed