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singleton class cannot call methods of regular class #3509

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christopheraue opened this issue Mar 14, 2017 · 0 comments
Closed

singleton class cannot call methods of regular class #3509

christopheraue opened this issue Mar 14, 2017 · 0 comments

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@christopheraue
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christopheraue commented Mar 14, 2017

$ cat singleton_class.mrb 
class Klass
  def self.meth
    :result
  end
end

o = Klass.new
# o.singleton_class.singleton_class

p o.singleton_class.meth

Running this raises an error:

$ ./mruby singleton_class.mrb 
trace:
        [0] singleton_class.mrb:10
NoMethodError: undefined method 'meth' for #<Class:#<Klass:0x213e350>>

Explicitly accessing the singleton class of the singleton class (uncommenting the commented line in singleton_class.mrb) prevents the issue and prints :result.

@matz matz closed this as completed in fa502b4 Mar 18, 2017
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