ESLint version

V8.0.0

What problem do you want to solve?

Eslint spent most of its time in parsing files. A javascript parser written in go or rust can potentially improve the the performance of eslint. However this is not possible now, because a parser written in go or rust can only be accessed by an asynchrous function, and eslint only accepts a synchronous parse function.

These external parsers can be accessed asynchronously by 1. Webassembly 2. Communicating to a child process using stdin/stdout or networking.

An example of parser written in rust is swc: https://docs.rs/swc_ecma_parser/latest/swc_ecma_parser/ .

What do you think is the correct solution?

Accept a parser with an asynchronous parse function.

Participation

• I am willing to submit a pull request for this change.

Additional comments

No response