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Posted to dev@daffodil.apache.org by GitBox <gi...@apache.org> on 2019/03/05 18:59:15 UTC

[GitHub] [incubator-daffodil] stevedlawrence opened a new pull request #193: Ensure content/valueLength expressions are not considered constants

stevedlawrence opened a new pull request #193: Ensure content/valueLength expressions are not considered constants
URL: https://github.com/apache/incubator-daffodil/pull/193
 
 
   Although it should result in an error, calling contentLength() or
   valueLength() on an immediate parent does not always trigger the normal
   code paths that determine that an expression is not a constant. This can
   lead to an unknown state and ultimately a NullPointerException. By
   overriding the contentLength and valueLength methods in the FakeDINode,
   we ensure that if this special case occurs we correctly determine this
   expression is not a constant.
   
   Also removes debugging information from the error message that results
   when this expression is eventually evaluated.
   
   DAFFODIL-2078

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