IntelliJ crashes after writing a certain parser rule with EOF.

[peterhenryd]

NOTE: The steps below may crash IntelliJ.

Steps to recreate:

• Use version 2020.1.2 EAP, it may or may not occur on other versions. Using Pop!_OS Linux.
• Use the sample grammar below.

grammar Test;

sourceTest: thing* EOF;

thing: '\r' | '\n' | EOF;

• Select the rule set sourceTest in the ANTLR preview.

IntelliJ will stop responding. I've personally tested this 5 times with the same result each time; if I'm missing any relevant variables, please let me now.

[peterhenryd]

I see there is already an issue with seemingly the same problem.

#393

EDIT:

Though it does seem odd that the issue still occurs even though it reportedly has been fixed. Perhaps it's the EAP update?

[peterhenryd]

It's unclear to me whether the fix has been implemented yet. I'm going to assume it has not been and close this.

[bjansen]

The problem has been fixed, but the fix has not been released yet. I'll schedule a release in the coming days.