From: hanmac@... Date: 2018-02-02T08:37:14+00:00 Subject: [ruby-core:85342] [CommonRuby Feature#13581] Syntax sugar for method reference Issue #13581 has been updated by Hanmac (Hans Mackowiak). nobu (Nobuyoshi Nakada) wrote: > Hanmac (Hans Mackowiak) wrote: > > i don't know about the rubyVM but can `xyz(&method(:symbol))` or `xyz(&obj.method(:symbol))` be optimized like `xyz(&:symbol)` is? > > They have different meanings all. > > `xyz(&method(:symbol))` == `xyz {|x| symbol(x)}` > `xyz(&obj.method(:symbol))` == `xyz {|x| obj.symbol(x)}` > `xyz(&:symbol)` == `xyz {|x| x.symbol}` i know they are different meanings, i was just wondering if they can be optimized for the VM too, to make them run faster if able like with not creating extra ruby objects if not needed ---------------------------------------- Feature #13581: Syntax sugar for method reference https://bugs.ruby-lang.org/issues/13581#change-70127 * 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/ Unsubscribe: