Date: 2018/03/15 (Thu)
Time: 14:00-18:00 (JST)
Place: Cookpad, Inc.
log edit:
Attendees: Martin Dürst (from ~16:00) (add your name here if you would like to participate)
Regrets: (add your name here if you often attend, but can't attend this time)
Language: mostly Japanese (sorry for non native Japanese speakers)

Please add your favorite ticket numbers you want to ask to discuss.

  • NOTE
    • Dev meeting IS NOT a decision making place. All decisions should be done at the bug tracker.
    • Dev meeting is a place we can ask Matz, nobu, nurse and other developers directly. Matz is a very busy person. Take this opportunity to ask him. If you can not attend, other attendees can ask instead of you (if attendees can understand your issue).
    • We will write a log about discussion to a file or to each ticket in English.
    • All activities are best-effort (keep in mind that most of us are volunteer developers).
    • The date, time and place is scheduled according to when/where we can reserve Matz's time.


  • NOTE: Write at least "ticket number/title/link" and your name (see example below). Explain details on the ticket. If you cannot attend the meeting, we appreciate a short summary because we can understand it more easily (long discussion is difficult to read, especially in a non-native language). Your motivation is also welcome.

About 2.6 timeframe

From attendees

  • [Feature #12732] An option to pass to Integer, Float, to return nil instead of raise an exception (mrkn)
  • [Feature #14476] Adding same_all? for checking whether all items in an Array are same (mrkn)
  • [Feature #14362] use BigDecimal instead of Float by default (mrkn)
  • [Feature #14044] Introduce a new attribute step in Range (mrkn)

From non-attendees

  • [Feature #14245] Add etc. (shugo)
  • [Feature #14579] Hash value omission (shugo)
  • [Bug #14541] Class variables have broken semantics, let's fix them (eregon). I'd like more opinions and thoughts on whether we can change them.
  • [Bugs #14380] Change Hash#transform_keys! and break compatibility with Ruby 2.5 and ActiveSupport, or not?
  • [Feature #11473] Immutable String literal in Ruby 3 (hsbt): Do you really want to change it at Ruby 3? If It's yes, We should add a warning with destructive action on Ruby 2.6.

Carry-over from previous meeting(s)

  • matz
    • [Feature #4514] #deep_clone and #deep_dup for Objects
    • [Feature #4521] NoMethodError#message may take very long to execute
    • [Feature #4539] Array#zip_with
    • [Feature #4592] Tempfileを直接保存したい
    • [Feature #4780] String#split with a block
    • [Feature #4818] Add method marshalable?
    • [Feature #4824] Provide method Kernel#executed?
    • [Feature #4907] enumerable#permutation and combination
    • [Feature #4910] Classes as factories
    • [Feature #5007] Proc#call_under: Unifying instance_eval and instance_exec
    • [Feature #5064] HTTP user-agent class
    • [Feature #5129] Create a core class "FileArray" and make "ARGF" its instance
    • [Feature #5133] Array#unzip as an alias of Array#transpose
    • [Bug #5179] Complex#rationalize and to_r with approximate zeros
  • nobu
    • [Feature #2324] Dir instance methods for relative path
    • [Bug #3618] inf-ruby prompt and tab completion
    • [Feature #4924] mkmf have_header fails with C++ headers
  • ko1
    • [Feature #2447] reduce GC pressure by symbol table without String instance
    • [Feature #3187] Allow dynamic Fiber stack size
    • [Feature #3731] Easier Embedding API for Ruby
    • [Bug #4040] SystemStackError with Hash[*a] for Large a
  • naruse
    • [Feature #2567] Net::HTTP does not handle encoding correctly
    • [Feature #2631] Allow IO#reopen to take a block
    • [Bug #4173] TestProcess#test_wait_and_sigchild が、たまに失敗する
  • akr
    • [Feature #3608] Enhancing Pathname#each_child to be lazy
    • [Feature #3848] Using http basic authentication for FTP with Open URI
    • [Feature #4560] [PATCH] lib/net/protocol.rb: avoid exceptions in rbuf_fill
  • knu
    • [Feature #3953] TCPSocket / UDPSocket do not accept IPAddr objects.
  • mame
    • [Feature #4247] New features for Array#sample, Array#choice
  • suke
    • [Bug #4405] WIN32OLE & Threads incompatible
  • kosaki
    • [Feature #4464] [PATCH] add Fcntl::Flock object for easier use of POSIX file locks
  • yugui
    • [Feature #4831] Integer#prime_factors
  • hsbt
    • [Bug #5060] Executables in bin folder conflict with their gem versions.
  • anyone
    • [Feature #4017] [PATCH] CSV parsing speedup
    • [Bug #4157] test_pty で、たまに出る Failure
    • [Feature #4483] PStoreをデフォルトで複数のスレッドから扱えるようにしたい