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https://issues.apache.org/jira/browse/DAFFODIL-2354?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dave Thompson closed DAFFODIL-2354.
-----------------------------------
Verified the specified commits (commit 779e9803ba7708d700c0205cbd690a179841b084
and cf57e0d04ed7414081febb0992e6ebdbb6cd708d) is included in the latest pull
from the incubator-daffodil repository.
Verified the effected incubator-daffodil sbt test suites execute successfully.
Verified the nightly test schemas compile and save successfully.
Verified the nightly test suite executes successfully.
> 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
> Priority: Critical
> Fix For: 3.0.0
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> 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.
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