Bug #10744: Kernel#singleton_method returns refined method

• Status: Closed
• Assignee: -
• Target version: -
• ruby -v: ruby 2.3.0dev (2015-01-15 trunk 49258) [x86_64-darwin14]
• Backport: 2.0.0: DONTNEED, 2.1: REQUIRED, 2.2: DONE

[hanachin (Seiei Miyagi)]

Kernel#singleton_method is an indirect method access.
it should not return Method object like Kernel#method.

following code does not works as I expected in ruby-trunk, 2.2.0, 2.1.5

class C
end

module RefinementBug
  refine C.singleton_class do
    def foo
    end
  end
end

p C.singleton_method(:foo)
p C.singleton_method(:foo).call

# expected:
#   refined_singleton_method.rb:11:in `singleton_method': undefined singleton method `foo' for `C' (NameError)
#   from refined_singleton_method.rb:11:in `<main>'
#
# actual:
#   #<Method: C.foo>
#   bug.rb:35:in `call': super: no superclass method `foo' for C:Class (NoMethodError)
#   from bug.rb:35:in `<main>'

[hanachin (Seiei Miyagi)]

• File 0001-proc.c-Kernel-singleton_method-should-not-use-refine.patch 0001-proc.c-Kernel-singleton_method-should-not-use-refine.patch added

i wrote a patch for this.

[nobu (Nobuyoshi Nakada)]

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

Applied in changeset r49259.

---

proc.c: singleton_method should not use refinements

• proc.c (rb_obj_singleton_method): Kernel#singleton_method should
  not use refinements, as well as Kernel#method.
  [ruby-core:67603] [Bug #10744]

[nagachika (Tomoyuki Chikanaga)]

• Backport changed from 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN to 2.0.0: UNKNOWN, 2.1: REQUIRED, 2.2: REQUIRED

[usa (Usaku NAKAMURA)]

• Backport changed from 2.0.0: UNKNOWN, 2.1: REQUIRED, 2.2: REQUIRED to 2.0.0: DONTNEED, 2.1: REQUIRED, 2.2: REQUIRED

[naruse (Yui NARUSE)]

• Backport changed from 2.0.0: DONTNEED, 2.1: REQUIRED, 2.2: REQUIRED to 2.0.0: DONTNEED, 2.1: REQUIRED, 2.2: DONE

ruby_2_2 r49646 merged revision(s) 49259.