From: artur.moczulski@... Date: 2019-03-04T22:02:59+00:00 Subject: [ruby-core:91664] [Ruby trunk Bug#15636] ::Socket#to_a hangs Ruby interpreter Issue #15636 has been reported by arturmoczulski (Artur Moczulski). ---------------------------------------- Bug #15636: ::Socket#to_a hangs Ruby interpreter https://bugs.ruby-lang.org/issues/15636 * Author: arturmoczulski (Artur Moczulski) * Status: Open * Priority: Normal * Assignee: * Target version: * ruby -v: 2.6.1 * Backport: 2.4: UNKNOWN, 2.5: UNKNOWN, 2.6: UNKNOWN ---------------------------------------- `ruby -v`: `ruby 2.6.1p33 (2019-01-30 revision 66950) [x86_64-linux]` ## Reproducible script ``` ruby require 'socket' s = Socket.new(:INET, :STREAM) s.connect Socket.pack_sockaddr_in(80, 'example.com') s.to_a ``` ## Result Ruby hangs infinitely. ## Expected Socket instance converted to an array representation (whatever that might be). I expect this as `to_a` comes from the `::Enumerable` mixin included in `::IO` - one of `::Socket`'s parent classes. ## Background I came across this while working on Redis client serialization in our Rollbar SDK here: https://github.com/rollbar/rollbar-gem/blob/master/spec/rollbar/item_spec.rb#L682-L686. This becomes a problem when you try to use ActiveSupport JSON to serialize a Redis client instance: `activesupport`: `v4.2.8` `redis`: `v4.1.0` 1. `Object#as_json` in `active_support/core_ext/object/json.rb#50` <- calls `as_json` on the `instance_values` 2. `Hash@as_json` in `active_support/core_ext/object/json.rb#159` <- calls `as_json` 3. `Enumerable#as_json` in `lib/active_support/core_ext/object/json.rb#128` <- calls to_a on a `Redis::Connection::TCPSocket` object -- https://bugs.ruby-lang.org/ Unsubscribe: