54 lines
1.4 KiB
Ruby
54 lines
1.4 KiB
Ruby
class Pry
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class Method
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# A Disowned Method is one that's been removed from the class on which it was defined.
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#
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# e.g.
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# class C
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# def foo
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# C.send(:undefine_method, :foo)
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# Pry::Method.from_binding(binding)
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# end
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# end
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#
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# In this case we assume that the "owner" is the singleton class of the receiver.
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#
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# This occurs mainly in Sinatra applications.
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class Disowned < Method
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attr_reader :receiver, :name
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# Create a new Disowned method.
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#
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# @param [Object] receiver
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# @param [String] method_name
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def initialize(receiver, method_name, binding=nil)
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@receiver, @name = receiver, method_name
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end
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# Is the method undefined? (aka `Disowned`)
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# @return [Boolean] true
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def undefined?
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true
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end
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# Can we get the source for this method?
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# @return [Boolean] false
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def source?
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false
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end
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# Get the hypothesized owner of the method.
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#
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# @return [Object]
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def owner
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class << receiver; self; end
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end
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# Raise a more useful error message instead of trying to forward to nil.
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def method_missing(meth_name, *args, &block)
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raise "Cannot call '#{meth_name}' on an undef'd method." if method(:name).respond_to?(meth_name)
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Object.instance_method(:method_missing).bind(self).call(meth_name, *args, &block)
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end
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end
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end
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end
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