[GROOVY-9276] Improve the performance of parsing

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.0.0-rc-1
• Component/s: parser-antlr4
• Assignee: Daniel Sun
• Reporter: Daniel Sun
• Created: 11/Oct/19 00:05
• Updated: 11/Oct/19 13:56
• Resolved: 11/Oct/19 13:56

Description

When semantic predicate fails, FailedPredicateException will be thrown to change the control flow. But as we all know, filling the stack trace is expensive especially when FailedPredicateException is thrown frequently. So eliminating the stack trace can improve the performance of parsing to some extent.