Bug #1996: ||= &&= doesn't return rval, but result of method

• Status: Closed
• Assignee: -
• Target version: -

[joshbuddy (Joshua Hull)]

=begin
Inconsistent behvaiour introduced in Ruby 1.9.1 with compound assignment operators.

o = Object.new
=> #Object:0x00000100975a80
def o.foo=(x); x * 2 end
=> nil
def o.foo; nil end
=> nil
o.foo = 1
=> 1
o.foo ||= 1
=> 2
RUBY_VERSION
=> "1.9.2"
RUBY_RELEASE_DATE
=> "2009-07-24"
RUBY_REVISION
=> 24260

In ruby 1.8

o = Object.new
=> #Object:0xe6c8
def o.foo=(x); x * 2 end
=> nil
def o.foo; nil end
=> nil
o.foo = 1
=> 1
o.foo ||= 1
=> 1
RUBY_VERSION
=> "1.8.7"
=end

[yugui (Yuki Sonoda)]

=begin
Redmineプロジェクト宛に来てしまったissueを転送します。

---------- 転送メッセージ ----------
From: Joshua Hull [e-mail]
日付: 2009/08/26 11:01
件名: [redmine4ruby-lang:256] [Bug #1996] ||= &&= doesn't return rval,
but result of method
To: [e-mail]

Bug #1996: ||= &&= doesn't return rval, but result of method
http://redmine.ruby-lang.org/issues/show/1996

起票者: Joshua Hull
ステータス: Open, 優先度: Normal

Inconsistent behvaiour introduced in Ruby 1.9.1 with compound
assignment operators.

o = Object.new
=> #Object:0x00000100975a80
def o.foo=(x); x * 2 end
=> nil
def o.foo; nil end
=> nil
o.foo = 1
=> 1
o.foo ||= 1
=> 2
RUBY_VERSION
=> "1.9.2"
RUBY_RELEASE_DATE
=> "2009-07-24"
RUBY_REVISION
=> 24260

In ruby 1.8

o = Object.new
=> #Object:0xe6c8
def o.foo=(x); x * 2 end
=> nil
def o.foo; nil end
=> nil
o.foo = 1
=> 1
o.foo ||= 1
=> 1
RUBY_VERSION
=> "1.8.7"

---

http://redmine.ruby-lang.org

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ML-> [e-mail]

=end

[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Closed
• % Done changed from 0 to 100

=begin
Applied in changeset r24757.
=end