DevelopersMeeting20140726JapanSummary¶

DevelopersMeeting20140726Japan
attendee: ko1, sora_h, akr, naruse, knu
on-line: matz, zzak, nobu, kosaki

[Feature #7797] Hash should be renamed to StrictHash and a new Hash should be created to behave like AS HashWithIndifferentAccess
matz: I have to reject, since it breaks compatibility
→ reject
[Feature #9980] Create HashWithIndiferentAccess using new syntax {a: 1}i
matz: Suffix i is used for complex (imaginary) numbers. It's bit confusing.
Maybe what you want can be gained by shorter/nicer name for Hash#compare_by_identity.
→ reject
[Feature #9064] Add support for packages, like in Java
Action: Matz to write a few questions back to the proposer
[Feature #8631] Add a new method to ERB to allow assigning the local variables from a hash
Now it can be implemnted with Pure Ruby.
If hash is given, what will be self of ERB?
[Bug #8543] rb_iseq_load
Modify it (best effort).
[Feature #10084] Add Unicode String Normalization to String class
Proposed method names by Matz: unicode_normalize or normalize_kd,... (not too short)
How to deal with non-Unicode encodings: Matz: raise Exception
Other than UTF-8: UTF8-Mac: return type should be UTF-8, or deal with it as legacy (not really Unicode). UTF8-DoCoMo,..? Yui should decide. UTF-16/32: Needed data,... differs by whether implementation is internal ( C) or pure Ruby.
Todo (for eprun): measure load time, compare with unf, avoid Module Normalize

require “unicode_normalize”
method name: String#unicode_normalize(form)
form: :nfc, :nfd, :nfkc, :nfkd
encodng: UTF-32BE/LE, UTF-16BE/LE, UTF-8
allow UTF8-MAC is confusing.
[Feature #10085] Add non-ASCII case conversion to String#upcase/downcase/swapcase/capitalize

[Feature #4276] Allow use of quotes in symbol syntactic sugar for hashes
Compare with JSON, it is ambiguous (String or Symbol).
[Feature #9924] Revisitting GC.stat keys
no objection.
approval.
[Feature #9781] Feature Proposal: Method#super_method
super: ambiguous which is calling method or getting method object of super.
-> “super_method”
[Feature #10095] Object#as
many bike shedding.

current workaround:
(1+2+3+4).tap { |x| break x ** 2 }
(1 + 2 + 3 + 4).tap{|x| next x ** 2}

bike shed discussion
(1 + 2 + 3 + 4).with{|x| x ** 2}
alias as instance_exec
with(1 + 2 + 3 + 4){|x| x ** 2}
(1 + 2 + 3 + 4).as -> {|x| x ** 2}
(1 + 2 + 3 + 4).and {|x| x ** 2}
p (1 + 2 + 3 + 4).next{|x| x ** 2}
.once
(1+2+3*+4).break{|x| x**2}
(1 + 2 + 3 + 4).pat{|x| x ** 2}
pass
continue
(1 + 2 + 3 + 4).to{|x| x ** 2}
(1 + 2 + 3 + 4).tobe{|x| x ** 2}
(1 + 2 + 3 + 4).then{|x| x ** 2}
reverse_call
(1 + 2 + 3 + 4)._{|x| x ** 2}
(1 + 2 + 3 + 4) -> {|x| x ** 2}
(1 + 2 + 3 + 4).do{|x| x ** 2}
(1 + 2 + 3 + 4).・{|x| x ** 2}
(1+2+3+4).bind {|x| x ** 2 }
tappp
(1 + 2 + 3 + 4).return{|x| x ** 2}.return{|x| x + 2}
(1 + 2 + 3 + 4).pass {|x| x ** 2}
(1 + 2 + 3 + 4) => {|x| x ** 2} => {|x| x + 2}
(1+2+3+4).= {|x| x ** 2 }
…

not concluded.