Issue #17398 has been updated by yui-knk (Kaneko Yuichiro).
Note that private def hello = puts "Hello" does not parse for technical reason.
It's possible. Patch is https://github.com/yui-knk/ruby/tree/bug_17398. This change allows single endless method definition with command body as an argument of the method. Some cases you might be aware are * `private :m, def hello = puts "Hello"` * This is SyntaxError because only single argument case is allowed. * This is same with one command is passed to argument. `obj.m 0, cmd 1, 2` is SyntaxError. * `private def hello = puts "Hello", "World"` * This is interpreted as `private def hello = puts("Hello", "World")` not `private (def hello = puts "Hello"), "World"`. * This is same with one command is passed to argument. `obj.m cmd 1, 2` is interpreted as `obj.m cmd(1, 2)` not `obj.m (cmd 1), 2`. * `private def hello = puts "Hello" do expr end` * This is interpreted as `private (def hello = puts "Hello") do expr end` not `private (def hello = puts "Hello" do expr end)` * This is same with one command is passed to argument. `obj.m cmd 1, 2 do expr end` is interpreted as `obj.m (cmd 1, 2) do expr end` not `obj.m (cmd 1, 2 do expr end)` ---------------------------------------- Feature #17398: SyntaxError in endless method https://bugs.ruby-lang.org/issues/17398#change-114484 * Author: zverok (Victor Shepelev) * Status: Closed ---------------------------------------- This works: ```ruby def foo() = puts("bar") ``` This does not: ```ruby def foo() = puts "bar" # ^ syntax error, unexpected string literal, expecting `do' or '{' or '(' ``` Is this intentional or accidental? Not sure how it is reasoned. ---Files-------------------------------- allow-command-style-endless-method-def.patch (3.44 KB) -- https://bugs.ruby-lang.org/