stdlib/resolv: Resolv::DNS::Resource::Generic.create returns a class #1655
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`Resolv::DNS::Resource::Generic.create` is not a data constructor but defines a new subclass of `Resolv::DNS::Resource::Generic` and returns it. ``` % irb -rresolv irb(main):001> rrtype = Resolv::DNS::Resource::Generic.create(65280, Resolv::DNS::Resource::IN::ClassValue) => Resolv::DNS::Resource::Generic::Type65280_Class1 irb(main):002> rrtype.class => Class irb(main):003> rrtype.superclass => Resolv::DNS::Resource::Generic ```
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Resolv::DNS::Resource::Generic.createis not a data constructor but defines a new subclass ofResolv::DNS::Resource::Genericand returns it.The result type is some subclass of
Generic, but, IIUC, RBS currently has no way to express the upper bound for aClass(ref. #1542).