From: etienne.barrie@... Date: 2020-12-29T20:49:09+00:00 Subject: [ruby-core:101808] [Ruby master Feature#16746] Endless method definition Issue #16746 has been updated by etienne (�tienne Barri�). I haven't seen it mentioned in the comments so I just wanted to point out that the regular method-definition syntax doesn't require semicolons, and is very close to this experiment, given the parentheses are mandatory: ``` ruby def fib(x) x < 2 ? x : fib(x-1) + fib(x-2) end # one-line style def value() @value end # one-line style 3.0 def value() = @value # one-line style setter def value=(value) @value = value end # not supported in 3.0 def value=(value) = @value = value ``` It doesn't remove the `end` which is the purpose of this feature sorry, but I like it because it keeps the consistency of having `end`, while not using more punctuation like `;` or `=`. ---------------------------------------- Feature #16746: Endless method definition https://bugs.ruby-lang.org/issues/16746#change-89635 * Author: mame (Yusuke Endoh) * Status: Closed * Priority: Normal * Assignee: nobu (Nobuyoshi Nakada) ---------------------------------------- Ruby syntax is full of "end"s. I'm paranoid that the ends end Ruby. I hope Ruby is endless. So, I'd like to propose a new method definition syntax. ```ruby def: value(args) = expression ``` As you see, there is no "end". Examples. ```ruby def: hello(name) = puts("Hello, #{ name }") hello("endless Ruby") #=> Hello, endless Ruby ``` ```ruby def: inc(x) = x + 1 p inc(42) #=> 43 ``` ```ruby x = Object.new def: x.foo = "FOO" p x.foo #=> "FOO" ``` ```ruby def: fib(x) = x < 2 ? x : fib(x-1) + fib(x-2) p fib(10) #=> 55 ``` Limitations. * `def: foo x = x` is invalid; the parentheses for formal arguments are mandatory. * `private def: foo = x` is invalid; this method definition cannot be an method argument. A patch is attached. No conflicts. ---Files-------------------------------- endless-method-definition.patch (2.47 KB) -- https://bugs.ruby-lang.org/ Unsubscribe: