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https://issues.apache.org/jira/browse/GROOVY-10212?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Paul King closed GROOVY-10212.
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> Provide a mechanism for users to enable Antlr4's SLL (fast but only simple)
> mode
> ---------------------------------------------------------------------------------
>
> Key: GROOVY-10212
> URL: https://issues.apache.org/jira/browse/GROOVY-10212
> Project: Groovy
> Issue Type: Improvement
> Reporter: Paul King
> Assignee: Daniel Sun
> Priority: Major
> Fix For: 4.0.0-beta-1, 3.0.9
>
>
> The Antlr4 framework provides both an SLL (simple) and LL (powerful) mode. To
> support all Groovy syntax LL is needed. However, for users needing a subset
> of Groovy, e.g. perhaps a DSL scenario, SLL could be sufficient and may be
> significantly faster. This issue is about allowing users to enable trying the
> fast mode (with a fallback to the normal mode). It will be disabled by
> default. This feature is initially incubating.
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