Editor became slow when there are more than 300 lines in file

[CalixHu]

I have some .exs files(unit test) that contain more than 300 lines(some 1000+). When I hit the 'enter', or do a copy/paste, the editor is frozen for 1-2 seconds. I have turn off all the plugins except the intellj-elixir. However, when I turn off this one, everything works fine. I have increased my memory for the idea VM. Is there a solution for this? I just turned from emacs and this plugin help me a lot.
Thanks.

[KronicDeth]

Do you have a lot of stabs in the file? That is ->s? There's a known performance issue with the grammar because it needs to do look-aheads and backtracks to determine if the next line is the starting expression -> or just an expression in the body of the last clause.

[CalixHu]

Yes, I do have lots of that. We have some mock functions in unit test to reduce the duplicates work. Is it possible to fix the issue? Or some workaround?
Thanks.

[KronicDeth]

Yeah, it's possible to fix the issue? Sure. Do I understand how to fix it? Not really. See #580.

Work-arounds in your own Elixir code are to have fewer ->, so have more named functions that you take references to with & instead of inlined fn with ->.

If you can post the the file that causes the problems, I can use it as a test case for #580. Go 👍 the description for #580 to vote for it too.

[CalixHu]

OK, thanks for replying so quickly and give us an awesome tool. : )