Date: 2016/11/25 (Fri)
Time: 14:00- 19:00 (JST)
Place: Tokyo office
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.

I want to clear my assigned tickets (shyouhei)

About 2.4 timeframe

Carry-over from previous meeting(s)

  • [Feature #12695] File.expand_path should resolve ~/ using /etc/passwd when HOME is not set (shyouhei) conclusion?
  • [Feature #4897] Define Math::TAU and BigMath.TAU. The "true" circle constant, Tau=2*Pi. See (shyouhei) wating for matz (or time?)
  • [Feature #12721] public_module_function (shyouhei)
  • [Feature #12732] An option to pass to Integer, Float, to return nil instead of raise an exception (shyouhei) conclusion?
  • [Feature #12745] String#(g)sub(!) should pass a MatchData to the block, not a String (shyouhei) conclusion?
  • [Feature #12753] Useful operator to check bit-flag is true or false (shyouhei)
  • [Feature #12754] Want to use prepared buffer with Array#pack (shyouhei)
  • [Feature #12752] Unpacking a value from a binary requires additional '.first' (shyouhei)
  • [Feature #12746] class Array: alias .prepend to .unshift ? (shyouhei)
  • [Feature #11815] Proposal for method Array#difference (shyouhei)
  • [Feature #12770] Hash#left_merge (shyouhei)
  • [Feature #12760] Optional block argument for itself (shyouhei)
  • [Feature #12775] Random subset of array (shyouhei)
  • [Bug #10290] segfault when calling a lambda recursively after rescuing SystemStackError (shyouhei)
  • [Bug #12688] Thread unsafety in autoload (shyouhei)
  • [Feature #12786] String#casecmp? (shyouhei)
  • [Feature #12612] Switch Range#=== to use cover? instead of include? (shyouhei)
  • [Bug #9244] unexpected behaviour of 'require' when $LOAD_PATH gets changed (shyouhei)
  • [Feature #12719] Struct#merge for partial updates (shyouhei)
  • [Feature #12715] Allow ruby hackers to omit having to specify class or module mandatory, if they know exactly what they want to do (shyouhei)
  • [Feature #12698] Method to delete a substring by regex match (shyouhei)
  • [Feature #12697] Why shouldn't Module meta programming methods be public? (shyouhei)
  • [Feature #8960] Add Exception#backtrace_locations (shyouhei) another problem is issued or...?
  • [Feature #10208] Passing block to Enumerable#to_h (knu) a better name?

From attendees

  • [Bug #11929] No programatic way to check ability to dup/clone an object (duerst)
  • [Feature #12979] Avoid exception for #dup on Integer (and similar cases) (duerst)
  • [Feature #2074] json の j や jj は module_function にするべき?
  • [Feature #9209][Feature #11925] Struct instances creatable with named args (nobu)
  • [Feature #12063] KeyError#receiver and KeyError#name (nobu)
  • [Feature #12802] Add BLAKE2 support to Digest (nobu)
  • [Feature #12861] Lexically scoped super (nobu)
  • [Bug #12952] Incompatibility of a method signature between Float#round and BigDecimal#round (yui-knk)
  • [Feature #12953] (Float, Integer, Rational)#round(half: :down) (shyouhei)
  • [Bug #12666] Fatal error: glibc detected an invalid stdio handle (shyouhei)
  • [Bug #12945] Use-after-free in vm_trace.c (shyouhei)
  • [Bug #12961] Bad value for range using infinity for Date or Time (shyouhei)
  • [Bug #12831] /\X/ (extended grapheme cluster) can't pass's GraphemeBreakTest (shyouhei)
  • [Bug #12809] passing a proc to Kernel#lambda does not create a lambda (shyouhei)
  • [Bug #12812] Added Coverage#result= (shyuohei)
  • [Feature #12813] Calling chunk_while, slice_after, slice_before, slice_when with no block (shyouhei) cf #2172
  • [Feature #12180] switch id_table.c variant (shyouhei) ko1?
  • [Feature #8158] lightweight structure for loaded features index (shyouhei)
  • [Feature #12839] CSV - Give not nil but empty strings for empty fields (shyouhei) assign who?
  • [Feature #12854] Proc#curry should return an instance of the class, not Proc (shyouhei)
  • [Bug #12855] Inconsistent keys identity in compare_by_identity Hash when using literals (shyouhei) bug or...?
  • [Feature #12871] Using the algorithm like math.fsum of Python for Array#sum (shyouhei) mrkn?
  • [Feature #12882] Add caller/file/line information to internal Kernel#warn calls (shyouhei)
  • [Feature #7360] Adding Pathname#glob (shyouhei)
  • [Feature #11286] [PATCH] Add case equality arity to Enumerable's sequence predicates. (shyouhei)
  • [Feature #5446] at_fork callback API (shyouhei)
  • [Feature #12780] BigDecimal#round returns different types depending on argument (shyouhei)
  • [Feature #11428] system/exec/etc. should to_s their argument to restore Pathname functionality as it was in 1.8 (shyouhei)
  • [Bug #12907] rb_respond_to() return value is incorrect (shyouhei)
  • [Feature #12180] switch id_table.c variant (shyouhei)
  • [Bug #12551] Exception accessing file with long path on windows (shyouhei) ping?
  • [Feature #12901] Anonymous functions without scope lookup overhead (shyouhei)
  • [Feature #12906] do/end blocks work with ensure/rescue/else (shyouhei)
  • [Bug #12914] FTPTest#test_list_read_timeout_exceeded causes EPROTOTYPE on Mac OS X 10.10 (shyouhei) assign who?
  • [Bug #12919] Net::FTP does not have a default open_timeout (shyouhei) assign who?
  • [Feature #12913] A way to configure the default maximum width of pp (shyouhei)
  • [Feature #12902] How about Enumerable#sum uses initial value rather than 0 as default? (shyouhei)
  • [Feature #12926] -l flag for line end processing should use chomp! instead of chop! (shyouhei)
  • [Feature #12912] An endless range (1..) (shyouhei)
  • [Feature #12933] Add Some and Optional (shyouhei)
  • [Feature #12931] Add support for Binding#instance_eval (shyouhei)
  • [Feature #12929] ternary should look ahead w/in a block (and not care about newlines) (shyouhei)
  • [Feature #12898] String#match? method in addition to Regexp#match? (shyouhei)
  • [Feature #12944] Change Kernel#warn to call Warning.warn (shyouhei)
  • [Misc #12935] Webrick: Update HTTP Status codes, share them (shyouhei)
  • [Feature #12962] Feature Proposal: Extend 'protected' to support module friendship (shyouhei)
  • [Feature #12957] A more OO way to create lambda Procs (shyouhei)
  • [Feature #12963] ?string longer than one char (shyouhei)
  • [Feature #12965] net/ftp module to support optional path parameter for status (shyouhei) who's going to handle this?
  • [Feature #12966] net/ftp to include fxp support? (shyouhei) who's going to handle this?
  • [Feature #12967] Add a default for RUBY_GC_HEAP_GROWTH_MAX_SLOTS out-of-the-box (shyouhei)
  • [Feature #12969] Allow optional parameter in String#strip and related (shyouhei)
  • [Feature #12968] Allow default value via block for Integer(), Float() and Rational() (shyouhei)
  • [Feature #12978] Symbol after keyword (nobu)

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)
  • [Bug #12958] Breaking change in how #round works (yui-knk listed on this agenda)
    Is there any migration path for changing behavior of round? For example only warning on Ruby 2.4 and chnage behavior on Ruby 2.5.