How does this grammar file generate the PSI layer of Kotlin source code?

[Terrency]

Does this grammar file have no relationship with the PSI layer of Kotlin source code anymore?

[ice-phoenix]

Hi mate! It was never the intention to have any kind of relationship between the ANTLR grammar and the Kotlin PSI. What are your reasons for wanting this?

[Terrency]

Hi Ice,
It's great to receive your response. As I have been going through the Kotlin source code, I noticed that it only includes Flex, but there is no BNF syntax section. So when I came across the ANTLR grammar portion here, I was curious about how Kotlin generates the PSI layer code. I wondered if ANTLR's grammar could be used to automatically generate the PSI.