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https://issues.apache.org/jira/browse/DAFFODIL-2629?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17480089#comment-17480089
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Mike Beckerle commented on DAFFODIL-2629:
-----------------------------------------
See testSetVarWithValueLength1 which reproduces this failure.
PR https://github.com/apache/daffodil/pull/731
{code:java}
org.apache.daffodil.tdml.TDMLExceptionImpl: (Implementation: daffodil)
RuntimeSchemaDefinitionError: Runtime Schema Definition Error: Expression
Evaluation Error: Value length unknown for element '{}someElement'.
Schema context: element reference ex:root Location line 1 in
file:/tmp/s1_8930945727707811594.dfdl.xsd
Data location was preceding byte 4 limit(bytes) 4
at org.apache.daffodil.tdml.TDMLException$.apply(TDMLException.scala:32)
at
org.apache.daffodil.tdml.ParserTestCase.doParseExpectSuccess(TDMLRunner.scala:1064)
{code}
> Runtime SDE with SetVariable expression
> ---------------------------------------
>
> Key: DAFFODIL-2629
> URL: https://issues.apache.org/jira/browse/DAFFODIL-2629
> Project: Daffodil
> Issue Type: Bug
> Components: Back End, Middle "End"
> Affects Versions: 3.2.1
> Reporter: Mike Beckerle
> Priority: Major
>
> I get a runtime SDE when I have a situation like this:
> ```
> <element name="message" .....
> .... big definition....
> </element>
> ....
> <dfdl:setVariable ref="$x:myVar">{ dfdl:valueLength(message, "bytes")
> }</dfdl:setVariable>
> ```
> The runtime SDE (when parsing) is that message has no value length.
> (Working on test case to reproduce it.)
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