[ruby-core:89811] [CommonRuby Feature#13581] Syntax sugar for method reference

[zverok.offline@gmail.com]

Issue #13581 has been updated by zverok (Victor Shepelev).


> I like solutions for real problems, not imaginary.

The `map(&method(:local_method))` or `yield_self(&method(:local_method))` pattern is absolutely real and very useful. My point was, we have plenty in our current codebase (and no, they are not "you just need to wrap collection items", my example was exaggerated for the illustrative purposes). 

And I can definitely say it brings value for code design and clarity, and will be even more so with `map(&.:local_method)` syntax.

----------------------------------------
Feature #13581: Syntax sugar for method reference
https://bugs.ruby-lang.org/issues/13581#change-74873

* 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?



-- 
https://bugs.ruby-lang.org/