RangeError: Maximum call stack size exceeded

[zrwsmd]

when i define a langium file and execute npm run langium:generate,this error occured,I want to know what the reason is

[msujew]

Can you share your grammar? The error you're seeing is likely related to this issue: #1246.

[zrwsmd]

if i write like this
entry st:
'PROGRAM' name=Identifier
(defenitions+=Definition)*
(stStatements+=Statement_list)
;
seems have this error

but if i write like
entry st:
'PROGRAM' name=Identifier
(stStatements+=Statement_list)
(defenitions+=Definition)*
;
it works well.
i guess it because * operator represent zero or many match,if it order first,can not decide it number,so report Maximum call stack size exceeded error

[msujew]

Hm, that looks like a new issue. Note that I would recommend to do this instead:

(definitions+=Definition | statements+=Statement)*

Depending on your grammar of course. Limiting in which order rules can appear is often not a good idea.