Steve Lawrence created DAFFODIL-2162:
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Summary: direct dispatch choice that has an array branch causes
abort during compilation
Key: DAFFODIL-2162
URL: https://issues.apache.org/jira/browse/DAFFODIL-2162
Project: Daffodil
Issue Type: Bug
Components: Front End
Reporter: Steve Lawrence
Fix For: 2.4.0
This schema has a direct dispatch where a choice branch is an array:
{code:xml}
<xs:include
schemaLocation="org/apache/daffodil/xsd/DFDLGeneralFormat.dfdl.xsd" />
<xs:annotation>
<xs:appinfo source="http://www.ogf.org/dfdl/";>
<dfdl:format ref="ex:GeneralFormat"
lengthKind="implicit"
representation="binary" />
</xs:appinfo>
</xs:annotation>
<xs:element name="root">
<xs:complexType>
<xs:sequence>
<xs:element name="index" type="xs:int" />
<xs:choice dfdl:choiceDispatchKey="{ xs:string(./index) } ">
<xs:element name="values1" type="xs:int" minOccurs="1" maxOccurs="2"
dfdl:choiceBranchKey="1" />
<xs:element name="values2" type="xs:int" dfdl:choiceBranchKey="2" />
</xs:choice>
</xs:sequence>
</xs:complexType>
</xs:element>
{code}
{quote}
org.apache.daffodil.exceptions.Abort: Not to be called on choice branches.
org.apache.daffodil.exceptions.Assert$.abort(Assert.scala:129)
org.apache.daffodil.exceptions.Assert$.usageError(Assert.scala:117)
org.apache.daffodil.dsom.ChoiceBranchImpliedSequence.emptyFormatFactory(SequenceGroup.scala:413)
org.apache.daffodil.dsom.AnnotatedMixin.$anonfun$formatAnnotation$1(AnnotatedSchemaComponent.scala:352)
at org.apache.daffodil.exceptions.Assert$.abort(Assert.scala:129)
at org.apache.daffodil.exceptions.Assert$.usageError(Assert.scala:117)
at
org.apache.daffodil.dsom.ChoiceBranchImpliedSequence.emptyFormatFactory(SequenceGroup.scala:413)
at
org.apache.daffodil.dsom.AnnotatedMixin.$anonfun$formatAnnotation$1(AnnotatedSchemaComponent.scala:352
...
{quote}
If i remove the choice dispatch or change maxOccurs="1" the exception goes away.
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