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From "Gabor Gevay (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLINK-2806) No TypeInfo for Scala's Nothing type
Date Fri, 02 Oct 2015 10:22:26 GMT
Gabor Gevay created FLINK-2806:
----------------------------------

             Summary: No TypeInfo for Scala's Nothing type
                 Key: FLINK-2806
                 URL: https://issues.apache.org/jira/browse/FLINK-2806
             Project: Flink
          Issue Type: Bug
          Components: Scala API
            Reporter: Gabor Gevay
            Assignee: Gabor Gevay
            Priority: Minor


When writing some generic code, I encountered a situation where I needed a TypeInformation[Nothing].
Two problems prevent me from getting it:
1. TypeInformationGen.mkTypeInfo doesn't return a real TypeInformation[Nothing]. (It actually
returns a casted null in that case.)
2. The line
implicit def createTypeInformation[T]: TypeInformation[T] = macro TypeUtils.createTypeInfo[T]
does not fire in some situations when it should, when T = Nothing. (I guess this is a compiler
bug.)

I will open a PR shortly.



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