[ruby-core:82580] [CommonRuby Feature#13581] Syntax sugar for method reference

From: hanmac@...
Date: 2017-08-31 10:10:09 UTC
List: ruby-core #82580
Issue #13581 has been updated by Hanmac (Hans Mackowiak).


nobu (Nobuyoshi Nakada) wrote:
> `obj\.method`

i am not sure about that:

~~~ ruby
obj\
.method
~~~
is already valid ruby code, so i am not sure

PS: when using "&obj.method(:symbol)" should that be optimized if able?

----------------------------------------
Feature #13581: Syntax sugar for method reference
https://bugs.ruby-lang.org/issues/13581#change-66401

* 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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