From: zverok.offline@... Date: 2020-04-20T17:18:59+00:00 Subject: [ruby-core:97982] [Ruby master Feature#15921] R-assign (rightward-assignment) operator Issue #15921 has been updated by zverok (Victor Shepelev). In current head, it is so: ```ruby x1 = 5 + 3 => y1 p [x1, y1] # [8, 8] 5 + 3 => x2 => y2 p [x2, y2] # [8, 8] *[1, 2, 3] => x3, y3 # ^ syntax error, unexpected =>, expecting '.' or &. or :: or '[' [1, 2, 3] => x4, y4 p [x4, y4] # => [1, 2] ``` That mostly makes sense to me (except for case 3, which seems to be "intuitively possible"). ---------------------------------------- Feature #15921: R-assign (rightward-assignment) operator https://bugs.ruby-lang.org/issues/15921#change-85211 * Author: nobu (Nobuyoshi Nakada) * Status: Closed * Priority: Normal * Assignee: matz (Yukihiro Matsumoto) ---------------------------------------- From https://bugs.ruby-lang.org/issues/15799#change-78465, proposal of the rightward-assignment operator by `=>`. ``` $ ./ruby -v -e '(1..).lazy.map {|x| x*2} => x' -e 'p x.first(10)' ruby 2.7.0dev (2019-06-12T06:32:32Z feature/rassgn-assoc c928f06b79) [x86_64-darwin18] last_commit=Rightward-assign by ASSOC [2, 4, 6, 8, 10, 12, 14, 16, 18, 20] ``` https://github.com/nobu/ruby/tree/feature/rassgn-assoc -- https://bugs.ruby-lang.org/ Unsubscribe: