Bug #5880 ยป 0001-object.c-rb_obj_is_instance_of-rb_obj_is_kind_of-add.patch
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*
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* Returns <code>true</code> if <i>obj</i> is an instance of the given
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* class. See also <code>Object#kind_of?</code>.
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*
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* class A; end
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* class B < A; end
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* class C < B; end
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*
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* b = B.new
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* b.instance_of? A #=> false
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* b.instance_of? B #=> true
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* b.instance_of? C #=> false
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*/
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VALUE
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| ... | ... | |
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* end
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* class B < A; end
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* class C < B; end
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*
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* b = B.new
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* b.instance_of? A #=> false
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* b.instance_of? B #=> true
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* b.instance_of? C #=> false
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* b.instance_of? M #=> false
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* b.is_a? A #=> true
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* b.is_a? B #=> true
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* b.is_a? C #=> false
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* b.is_a? M #=> true
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*
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* b.kind_of? A #=> true
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* b.kind_of? B #=> true
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* b.kind_of? C #=> false
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