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https://issues.apache.org/jira/browse/CASSANDRA-12598?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Berenguer Blasi updated CASSANDRA-12598:
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Status: Patch Available (was: Open)
> BailErrorStragery alike for ANTLR grammar parsing
> -------------------------------------------------
>
> Key: CASSANDRA-12598
> URL: https://issues.apache.org/jira/browse/CASSANDRA-12598
> Project: Cassandra
> Issue Type: Bug
> Components: CQL
> Reporter: Berenguer Blasi
> Fix For: 3.x
>
>
> CQL parsing is missing a mechanism similar to
> http://www.antlr.org/api/Java/org/antlr/v4/runtime/BailErrorStrategy.html
> This solves:
> - Stopping parsing instead of continuing when we've got already an error
> which is wasteful.
> - Any skipped java code tied to 'recovered' missing tokens might later cause
> java exceptions (think non-init variables, non incremented integers (div by
> zero), etc.) which will bubble up directly and will hide properly formatted
> error messages to the user with no indication on what went wrong at all. Just
> a cryptic NPE i.e
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