Date: 2017/04/17 (Mon)
Time: 14:00- 19:00 (JST)
Place: Cookpad Inc. Headquarter
log edit:
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 2.5 timeframe

Carry-over from previous meeting(s)

  • [Bug #13257] Symbol#respond_to?(:singleton_class) should be false (naruse)
  • [Misc #13163] Uncaught exceptions may not be reported when Thread#report_on_exception=true and Thread#abort_on_exception=true (naruse)
  • [Bug #13181] Unexpected line in rescue backtrace (shyouhei) what's this?
  • [Feature #8263] Support discovering yield state of individual Fibers (shyouhei)
  • [Feature #8576] Add optimized method type for constant value methods (shyouhei)
  • [Bug #13188] Reinitialize Ruby VM. (shyouhei) New C API ...?
  • [Feature #2740] Extend const_missing to pass in the nesting (shyouhei)
  • [Feature #13211] Hash#delete taking a splat (shyouhei)
  • [Bug #11567] Segmentation fault CFUNC :gets (shyouhei)
  • [Feature #13172] Method that yields object to block and returns result (shyouhei) new name candicate
  • [Feature #13224] Add FrozenError as a subclass of RuntimeError (shyouhei)
  • [Misc #13230] Better Do ... while structure (shyouhei)
  • [Feature #13245] [PATCH] reject inter-thread TLS modification (shyouhei)
  • [Feature #13252] C API for creating strings without copying (shyouhei)
  • [Bug #13249] Access modifiers don't have an effect inside class methods in Ruby >= 2.3 (shyouhei) design issue or bug?
  • [Feature #13265] TracePoint for basic operation redefinition (shyouhei)
  • [Bug #12834] prepend getting prepended even if it already exists in the ancestors chain (shyouhei)
  • [Bug #7976] TracePoint call is at call point, not call site (shyouhei)
  • [Feature #12901] Anonymous functions without scope lookup overhead (shyouhei) status?
  • [Feature #12573] Introduce a straightforward way to discover whether a process is running (shyouhei)
  • [Feature #13263] Add companion integer nth-root method to recent Integer#isqrt (shyouhei)
  • [Feature #9453] Return symbols of defined methods for attr and friends (shyouhei) look at the last comment
  • [Feature #13302] Provide a (force) --enable-openssl switch for ruby ./configure (or similar) (shyouhei)
  • [Feature #13303] String#any? as !String#empty? (shyouhei)

From attendees

  • [Feature #13334] Removed deprecated mathn extentions. (hsbt)
  • Assign who? section (shyouhei)
    • [Bug #13228] s[i]=c(assigning a character) for String is slower than Array on Linux
    • [Bug #13264] Binding#irb does not work in context of frozen object
    • [Bug #12642] Net::HTTP populates host header incorrectly when using an IPv6 Address
    • [Bug #13196] Improve keyword argument errors when non-keyword arguments given
    • [Bug #13320] rescue blocks get an entry in backtrace locations
    • [Bug #13324] IRB Segmentation Fault from eval infinite loop
    • [Bug #13330] Array.include? is slow for symbols
    • [Bug #13336] Default Parameters don't work
    • [Bug #13337] Eval and Later Defined Local Variables
    • [Bug #13338] MinGW SEGV in test/ruby/test_keyword.rb svn 58034, ok in svn 58021.
    • [Bug #13390] MinGW build test-all SEGV, issue in test framework or error recovery?
    • [Bug #13350] :newline option not respected on Linux
    • [Feature #13362] [PATCH] socket: avoid fcntl for read/write_nonblock on Linux
    • [Bug #13351] net/http: Net::HTTP.start sets wrong default arg value
    • watson's
      • [Bug #13341] Improve performance of implicit type conversion
      • [Bug #13342] Improve yielding block performance
      • [Bug #13354] Improve Time#<=> performance
      • [Bug #13357] Improve Time#+ & Time#- performance
      • [Bug #13365] Improve performance of rb_equal() with special constants
      • [Bug #13368] Improve performance of Array#sum with float elements
      • [Bug #13374] Fix one of performance regressions in method calling
    • [Bug #13373] FileUtils methods for copy, move and remove directories is not providing a decent error trace for letting know if it was success or fail
    • [Bug #13101] Date#rfc2822 and Time#rfc2822 don't return the same format
    • [Bug #13312] String#casecmp raises TypeError instead of returning nil
    • [Bug #12684] Delegator#eql? missing
    • [Feature #13389] [PATCH] POP3 support timeout for TLS handshake
    • [Bug #13319] GC issues seen with GCC7
    • [Bug #13404] Hash#any? yields arguments to lambdas with proc semantics
    • [Bug #13406] URI.parse
    • [Bug #13413] --with-static-linked-ext doesn't install extension files on make install
    • [Bug #13420] Integer#{round,floor,ceil,truncate} should always return an integer, not a float
    • [Bug #13429] Net::SMTP has no read timeout when connexion over TLS
  • [Feature #13309] Locale paramter for Integer(), Float(), Rational() (shyouhei)
  • [Feature #12733] Bundle bundler to ruby core (shyouhei) updates?
  • [Feature #11302] Dir.entries and Dir.foreach without [".", ".."] (shyouhei)
  • [Feature #13332] Forwardable#def_instance_delegator nil (shyouhei)
  • [Feature #13334] Removed deprecated mathn extentions. (shyouhei)
  • [Bug #12921] Retrieve user and password for proxy from env (shyouhei)
  • [Feature #13333] block to yield (shyouhei)
  • [Feature #13378] Eliminate 4 of 8 syscalls when requiring file by absolute path (shyouhei)
  • [Feature #13381] [PATCH] Expose rb_fstring and its family to C extensions (shyouhei)
  • [Bug #13315] Single "%" at the end of printf format string appears in the result (shyouhei)
  • [Feature #13385] [PATCH] Make Resolv::DNS::Name validation similar to host and dig commands (shyouhei)
  • [Feature #13383] [PATCH] Module#source_location (shyouhei)
  • [Feature #12063] KeyError#receiver and KeyError#name (shyouhei) status?
  • [Bug #13397] #object_id should not be signed (shyouhei)
  • [Feature #13396] Net::HTTP has no write timeout (shyouhei)
  • [Bug #13407] We have recv_nonblock but not send_nonblock... can we add it? (shyouhei)
  • [Feature #13395] Add a method to check for not nil (shyouhei)

From non-attendees

Write your name and your interest (what do you want to ask and to whom?) please.

  • example: [Feature #10917] Add GC.stat[:total_time] when GC profiling enabled (ko1)

  • [Feature #12886] URI#merge doesn't handle paths correctly (hsbt)