Steve Lawrence created DAFFODIL-2354: ----------------------------------------
Summary: newVariableInstance leads to mark state exception Key: DAFFODIL-2354 URL: https://issues.apache.org/jira/browse/DAFFODIL-2354 Project: Daffodil Issue Type: Bug Components: Back End Affects Versions: 2.6.0 Reporter: Steve Lawrence The following schema uses newVariableInstance with the goal of parameterizing repeated types. Note that this snippet does not even use the type and count variables, or parameterizes anything, which is the intention. The ultimate goal is to have set the type and count variables based on the type/count elements, and then use those variables in the choice rather than using XPath to access the elements. Things were simplified to create the smallest test case. {code:xml} <?xml version="1.0" encoding="UTF-8"?> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:dfdl="http://www.ogf.org/dfdl/dfdl-1.0/"> <xs:include schemaLocation="org/apache/daffodil/xsd/DFDLGeneralFormat.dfdl.xsd" /> <xs:annotation> <xs:appinfo source="http://www.ogf.org/dfdl/"> <dfdl:format ref="GeneralFormat" /> <dfdl:defineVariable name="type" type="xs:int" /> <dfdl:defineVariable name="count" type="xs:int" /> </xs:appinfo> </xs:annotation> <xs:element name="file"> <xs:complexType> <xs:sequence> <xs:element name="records" maxOccurs="unbounded" dfdl:terminator="%NL;"> <xs:complexType> <xs:sequence> <xs:element name="type" type="xs:int" dfdl:lengthKind="explicit" dfdl:length="1" /> <xs:element name="count" type="xs:int" dfdl:lengthKind="explicit" dfdl:length="1" /> <xs:sequence> <xs:annotation> <xs:appinfo source="http://www.ogf.org/dfdl/"> <dfdl:newVariableInstance ref="type" /> <dfdl:newVariableInstance ref="count" /> </xs:appinfo> </xs:annotation> <xs:sequence> <xs:choice dfdl:choiceDispatchKey="{ xs:string(./type) }"> <xs:element name="int" type="xs:int" dfdl:choiceBranchKey="1" maxOccurs="unbounded" dfdl:occursCountKind="expression" dfdl:occursCount="{ ../count }" dfdl:lengthKind="explicit" dfdl:length="1" /> <xs:element name="str" type="xs:string" dfdl:choiceBranchKey="2" maxOccurs="unbounded" dfdl:occursCountKind="expression" dfdl:occursCount="{ ../count }" dfdl:lengthKind="explicit" dfdl:length="1" /> </xs:choice> </xs:sequence> </xs:sequence> </xs:sequence> </xs:complexType> </xs:element> </xs:sequence> </xs:complexType> </xs:element> {code} So each line has a type (either 1 for int or 2 for string) and a count, followed by count occurrances of that type. This should parse data that looks something like this: {code} 1512345 26abcdef {code} However, trying to parse this data leads to a usage exception about the mark state being messed up. Simply removing the newVariableInstance annotation allows things to work, so somehow that is messing with state in a way that is unexpected. -- This message was sent by Atlassian Jira (v8.3.4#803005)