[jira] [Commented] (DAFFODIL-2596) lengthKind property is not inherited for types with dfdlx:repType

["Mike Beckerle (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/DAFFODIL-2596?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17647728#comment-17647728 ] 

Mike Beckerle commented on DAFFODIL-2596:
-----------------------------------------

We ran into a related problem. Our data is binary with 1-bit alignment.

For our enums which have binary repTypes, but strings as the enumeration values, not only did we need to put in dfdl:lengthKind='delimited' but dfdl:alignment="8" in our format because Daffodil thinks somehow the string is being used for representation and issues errors about the characters of a US-ASCII string not being 8-bit aligned. 

Basically, some of this checking in Daffodil pre-dates the introduction of dfdlx:repType, so does not treat the string as just a computed element. 

> lengthKind property is not inherited for types with dfdlx:repType
> -----------------------------------------------------------------
>
>                 Key: DAFFODIL-2596
>                 URL: https://issues.apache.org/jira/browse/DAFFODIL-2596
>             Project: Daffodil
>          Issue Type: Bug
>          Components: Front End
>    Affects Versions: 3.2.0
>            Reporter: Josh Adams
>            Assignee: Josh Adams
>            Priority: Major
>
> Ran into this while working on a customer schema
> Essentially if the default dfdl:lengthKind="implicit" and you attempt to use a dfdl:repType that involves uses string values for its enumeration, you will either get an error complaining that you cannot have an xs:string with lengthKind="implicit" without specifying a maxLength, OR for some unknown reason you can get a completely different usage error:
> org.apache.daffodil.exceptions.Abort: Usage error: v.>=(0)
> org.apache.daffodil.exceptions.Assert$.abort(Assert.scala:137)
> org.apache.daffodil.util.MaybeULong$.apply(MaybeULong.scala:54)
> org.apache.daffodil.util.MaybeJULong$.apply(MaybeULong.scala:84)
> org.apache.daffodil.processors.LengthInBitsEvBase.compute(EvElement.scala:144)
>         at org.apache.daffodil.exceptions.Assert$.abort(Assert.scala:137)
>         at org.apache.daffodil.util.MaybeULong$.apply(MaybeULong.scala:54)
>         at org.apache.daffodil.util.MaybeJULong$.apply(MaybeULong.scala:84)
>         at org.apache.daffodil.processors.LengthInBitsEvBase.compute(EvElement.scala:144)
>         at org.apache.daffodil.processors.LengthInBitsEvBase.compute(EvElement.scala:118)
>         at org.apache.daffodil.processors.Evaluatable.evaluate(Evaluatable.scala:281)
>         at org.apache.daffodil.processors.Evaluatable.compileTimeEvaluate(Evaluatable.scala:212)
>         at org.apache.daffodil.processors.Evaluatable.compile(Evaluatable.scala:317)
>         at org.apache.daffodil.processors.Evaluatable.compile(Evaluatable.scala:326)



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