Bug #13669: Enumerable#uniq is ignoring second and following block arguments

• Status: Closed
• Assignee: -
• Target version: -
• ruby -v: ruby 2.5.0dev (2017-06-20 trunk 59122) [x86_64-darwin16]
• Backport: 2.2: DONTNEED, 2.3: DONTNEED, 2.4: DONE

[kachick (Kenichi Kamiya)]

github: https://github.com/ruby/ruby/pull/1658

enum = Object.new.to_enum
class << enum
  def each
    yield
    yield nil
    yield 0
    yield 1
    yield 0, :LABEL
    yield [0, :LABEL]
    yield 1, :LABEL
    yield 1, :LABEL
    yield 1, :DIFFERENT
  end
end

p enum.uniq

Current

[nil, 0, 1, [0, :LABEL]]

Is this intentional?

Expected

[nil, 0, 1, [0, :LABEL], [1, :LABEL], [1, :DIFFERENT]]

[nobu (Nobuyoshi Nakada)]

• Backport changed from 2.2: UNKNOWN, 2.3: UNKNOWN, 2.4: UNKNOWN to 2.2: DONTNEED, 2.3: DONTNEED, 2.4: REQUIRED

[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Closed

Applied in changeset trunk|r59128.

---

Fix Enumerable#uniq with non single yield arguments

• enum.c (uniq_func, uniq_iter): need packed value as the unique
  key. [ruby-core:81734] [Bug #13669] [Fix GH-1658]

Author: Kenichi Kamiya [e-mail]

[nagachika (Tomoyuki Chikanaga)]

• Backport changed from 2.2: DONTNEED, 2.3: DONTNEED, 2.4: REQUIRED to 2.2: DONTNEED, 2.3: DONTNEED, 2.4: DONE

ruby_2_4 r59515 merged revision(s) 59128.