[ruby-core:82614] [CommonRuby Feature#13581] Syntax sugar for method reference

Issue #13581 has been updated by tom-lord (Tom Lord).


Consider the following:

~~~ ruby
def get_method(object, sym)
  object.send(:method, sym)
end
~~~


This allows us to write code like:

~~~ ruby
[1, 4, 9].map &get_method(Math, :sqrt)
~~~


So as an idea, how about introducing some syntax sugar for the above - such as:

~~~ ruby
[1, 4, 9].map &~>(Math, :sqrt)
~~~


Where in general, ~> (or whatever) could be the "method lookup operator".

----------------------------------------
Feature #13581: Syntax sugar for method reference
https://bugs.ruby-lang.org/issues/13581#change-66437

* Author: americodls (Americo Duarte)
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
----------------------------------------
Some another programming languages (even Java, in version 8) has a cool way to refer a method as a reference.

I wrote some examples here: https://gist.github.com/americodls/20981b2864d166eee8d231904303f24b

I miss this thing in ruby.

I would thinking if is possible some like this:

~~~
roots = [1, 4, 9].map &Math.method(:sqrt)
~~~

Could be like this:

~~~
roots = [1, 4, 9].map Math->method
~~~

What do you guys thinking about it?



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