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https://issues.apache.org/jira/browse/DAFFODIL-1221?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Beckerle resolved DAFFODIL-1221.
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Resolution: Fixed
Assignee: Dave Thompson (was: Michael Beckerle)
Fixed in cd439d16294a0fc6a23783c3333dd49544d88c95
> Abort: Invariant Broken when XPath expression moves past root
> -------------------------------------------------------------
>
> Key: DAFFODIL-1221
> URL: https://issues.apache.org/jira/browse/DAFFODIL-1221
> Project: Daffodil
> Issue Type: Bug
> Components: General
> Affects Versions: 1.0.0
> Reporter: Jessie Chab
> Assignee: Dave Thompson
> Priority: Major
> Fix For: deferred
>
>
> If the XPath expression extends beyond the root of the tree, you get the
> following error:
> {code}
> [error] Test
> edu.illinois.ncsa.daffodil.section23.dfdl_expressions.TestDFDLExpressions.test_beyondRoot_01
> failed: edu.illinois.ncsa.daffodil.exceptions.Abort: Invariant broken.
> UpMove past root. Should never happen since an expression like that won't
> typecheck statically.
> [error] edu.illinois.ncsa.daffodil.exceptions.Assert$.abort(Assert.scala:95)
> [error]
> edu.illinois.ncsa.daffodil.exceptions.Assert$.invariantFailed(Assert.scala:136)
> [error]
> edu.illinois.ncsa.daffodil.dpath.UpMove$$anonfun$1.apply(UpDownMoves.scala:32)
> [error]
> edu.illinois.ncsa.daffodil.dpath.UpMove$$anonfun$1.apply(UpDownMoves.scala:32)
> [error] at
> edu.illinois.ncsa.daffodil.exceptions.Assert$.abort(Assert.scala:95)
> [error] at
> edu.illinois.ncsa.daffodil.exceptions.Assert$.invariantFailed(Assert.scala:136)
> [error] at
> edu.illinois.ncsa.daffodil.dpath.UpMove$$anonfun$1.apply(UpDownMoves.scala:32)
> [error] at
> edu.illinois.ncsa.daffodil.dpath.UpMove$$anonfun$1.apply(UpDownMoves.scala:32)
> [error] at
> edu.illinois.ncsa.daffodil.util.Maybe$.getOrElse$extension(Maybe.scala:30)
> [error] at
> edu.illinois.ncsa.daffodil.dpath.UpMove$.run(UpDownMoves.scala:32)
> [error] at
> edu.illinois.ncsa.daffodil.dpath.CompiledDPath.run(DPathRuntime.scala:85)
> [error] at
> edu.illinois.ncsa.daffodil.dpath.CompiledDPath.runExpression(DPathRuntime.scala:31)
> [error] at
> edu.illinois.ncsa.daffodil.dpath.RuntimeExpressionDPath.liftedTree1$1(DPath.scala:92)
> [error] at
> edu.illinois.ncsa.daffodil.dpath.RuntimeExpressionDPath.evaluate(DPath.scala:91)
> [error] at
> edu.illinois.ncsa.daffodil.processors.parsers.ExpressionEvaluationParser.eval(ExpressionEvaluatingParsers.scala:30)
> [error] at
> edu.illinois.ncsa.daffodil.processors.parsers.IVCParser$$anonfun$parse$1.apply(ExpressionEvaluatingParsers.scala:44)
> [error] at
> edu.illinois.ncsa.daffodil.processors.parsers.IVCParser$$anonfun$parse$1.apply(ExpressionEvaluatingParsers.scala:41)
> [error] at
> edu.illinois.ncsa.daffodil.processors.WithParseErrorThrowing$class.withParseErrorThrowing(ParseErrors.scala:205)
> [error] at
> edu.illinois.ncsa.daffodil.processors.parsers.ExpressionEvaluationParser.withParseErrorThrowing(ExpressionEvaluatingParsers.scala:19)
> [error] at
> edu.illinois.ncsa.daffodil.processors.parsers.IVCParser.parse(ExpressionEvaluatingParsers.scala:41)
> ....
> {code}
> I first noticed this with the interactive debugger, but have written a TDML
> test to demonstrate the issue:
> test_beyondRoot_01
> daffodil-test/src/test/resources/edu/illinois/ncsa/daffodil/section23/dfdl_expressions/expressions.tdml
> daffodil-test/src/test/scala-debug/edu/illinois/ncsa/daffodil/section23/dfdl_expressions/TestDFDLExpressionsDebug.scala
> daffodil-test/src/test/scala/edu/illinois/ncsa/daffodil/section23/dfdl_expressions/TestDFDLExpressions.scala
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