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https://issues.apache.org/jira/browse/DAFFODIL-2565?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17421026#comment-17421026
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Mike Beckerle commented on DAFFODIL-2565:
-----------------------------------------
Changed from bug to improvement. Turns out code was not wrong. Just a cleanup
to make it clearer what code is responsible for maintaining the
changedVariablesStack (answer: PState is, exclusively, and VariableMap doesn't
know anything about the changedVariablesStack.)
> PState.changedVariablesStack not being maintained by VRef in DPath expressions
> ------------------------------------------------------------------------------
>
> Key: DAFFODIL-2565
> URL: https://issues.apache.org/jira/browse/DAFFODIL-2565
> Project: Daffodil
> Issue Type: Improvement
> Components: Back End
> Affects Versions: 3.1.0
> Reporter: Mike Beckerle
> Assignee: Mike Beckerle
> Priority: Major
>
> By inspection found that while PState.setVariable was maintaining the
> changedVariableStack, other places that read variables were not.
> Specifically, in DPath expression evaluation, VRef is not.
> We should do all variable sets/gets from PState/UState so as to always
> maintain this stack properly.
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