stevedlawrence commented on a change in pull request #100: Moved
pushDiscriminator to fix separators bug.
URL: https://github.com/apache/incubator-daffodil/pull/100#discussion_r210110761
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File path:
daffodil-runtime1/src/main/scala/org/apache/daffodil/processors/parsers/SeparatedSequenceParsers.scala
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@@ -299,6 +299,18 @@ final class OrderedSeparatedSequenceParser(
val bitPosBeforeSeparator = pstate.bitPos0b
+ pstate.pushDiscriminator
Review comment:
If we pushing the discriminator here, it means that if a separator parser
fails and processFailedSeparatorsWithPoU is called, the condition that checks
pstate.discriminator == true will never pass and Failed_WithDiscriminatorSet
will never be used (at least because of a missing separator), I think? So it
seems like that condition is never going to be hit?
If so, maybe the right fix is to put the pushDiscriminator back where it
was, and just remove the pstate.discriminitor == true check so that
processFailedSeparatorsWithPoU always returns Failed_SpeculativeParse if a
separator parser fails? Or is there some more complexity related to separators
and discriminators that is missing?
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