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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:
----------------------------------------
Description:
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
was:
CQL parsing is missing a mechanism similar to
http://www.antlr.org/api/Java/org/antlr/v4/runtime/BailErrorStrategy.html
This solrves:
- 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
> 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: 3.10
>
>
> 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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