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Bug #6659

closed

prepend した Class/Module の ancestors に Class が混入する

Added by nagachika (Tomoyuki Chikanaga) over 12 years ago. Updated over 12 years ago.

Status:
Rejected
Target version:
ruby -v:
ruby 2.0.0dev (2012-06-27 trunk 36240) [x86_64-darwin10.8.0]
Backport:
[ruby-dev:45861]

Description

Module#prepend を利用した Class/Module に対して ancestors を呼ぶと Class が入りこみます。
ancestors に入るだけで Object#is_a? の判定やメソッド呼び出しができるようになったりはしていないようです。

module M1
end

module M2
prepend M1
end
M2.ancestors # => [M2, M1, Class]

class C
prepend M1
end
C.ancestors # => [C, M1, Class, Object, Kernel, BasicObject]
C.new.is_a(Class) # => false
C.new.superclass # => NoMethodError: undefined method `allocate' for #<C:0x0000010103ba90>


Related issues 1 (0 open1 closed)

Is duplicate of Ruby master - Bug #6658: Module#ancestors & prependClosed06/28/2012Actions
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