method

instance_of?

v1_9_3_125 - Show latest stable - Class: Object

instance_of?(p1)

public

Returns true if obj is an instance of the given class. See also Object#kind_of?.

class A;     end
class B < A; end
class C < B; end

b = B.new
b.instance_of? A   #=> false
b.instance_of? B   #=> true
b.instance_of? C   #=> false

VALUE
rb_obj_is_instance_of(VALUE obj, VALUE c)
{
    switch (TYPE(c)) {
      case T_MODULE:
      case T_CLASS:
      case T_ICLASS:
        break;
      default:
        rb_raise(rb_eTypeError, "class or module required");
    }

    if (rb_obj_class(obj) == c) return Qtrue;
    return Qfalse;
}

instance_of?

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