Bug #10432: wrong receiver of Binding from Method

• Status: Closed
• Assignee: nobu (Nobuyoshi Nakada)
• Target version: -
• ruby -v: trunk
• Backport: 2.0.0: DONE, 2.1: DONE

[nobu (Nobuyoshi Nakada)]

Methodオブジェクトからto_proc.bindingで作られたBindingのreceiverが、Methodオブジェクトの元になったオブジェクトではなく、Methodオブジェクトになっています。

class C
  def foo;end
end
o = C.new
m = o.method(:foo)
p m.receiver                    # #<C:0x007fcada074e58>
p m.to_proc.binding.receiver    # #<Method: C#foo>

2.0, 2.1ではBinding#receiverはありませんが、eval("self")で同様の結果になります。

[nobu (Nobuyoshi Nakada)]

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

Applied in changeset r48160.

---

proc.c: fix method proc binding receiver

• proc.c (method_proc): the receiver of binding from method should
  be same as the receiver of the method.
  [ruby-core:65917] [Bug #10432]

[nobu (Nobuyoshi Nakada)]

• Related to Bug #10428: Segmentation fault when modifying local variables of binding obtained from the result of Method#to_proc added

[usa (Usaku NAKAMURA)]

• Backport changed from 2.0.0: REQUIRED, 2.1: REQUIRED to 2.0.0: DONE, 2.1: REQUIRED

Backported into ruby_2_0_0 at r48633.
(元のレポートにもあるように2.0.0にはBinding#receiverがないため、テストを一部変更)

[nagachika (Tomoyuki Chikanaga)]

• Backport changed from 2.0.0: DONE, 2.1: REQUIRED to 2.0.0: DONE, 2.1: DONE

Backported into ruby_2_1 at r49472.

[ko1 (Koichi Sasada)]

Methodオブジェクトからto_proc.bindingで作られたBindingのreceiverが、Methodオブジェクトの元になったオブジェクトではなく、Methodオブジェクトになっています。

元々、なんでこれじゃいけないんでしたっけ。
1.8 だと、b.eval('p self') がレシーバになっていたのかな。

[nagachika (Tomoyuki Chikanaga)]

• Related to Bug #11163: Binding from Method#to_proc.binding cause BUG added