Was Langium's features made by Langium?

[negahama]

It's just my curiosity
As more as I learned Langium, Langium is perfect tools for making the Langium's features.
long time ago, I heard C compiler is re-written by C language after C compiler was made...
Was Langium re-written by Langium? ^^

[msujew]

Hey @negahama,

Yes, Langium's grammar language is completely self-hosted. You will find it's implementation here.

The first few commits in this repo featured a hand-written parser, that was replaced pretty quickly with a Langium-based implementation. You're completely right in that regard :)

[negahama]

It's cool...

[spoenemann]

See https://en.wikipedia.org/wiki/Bootstrapping_(compilers)