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kotlinlang

I have a basic question , Kotlin compiler is written in Kotlin itself , so how is the compiler compiled ?

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

going by the reconstruction done by <https://github.com/ebourg/kotlin-bootstrapping>, the Kotlin compiler ≤ 0.6.786 contained only Java code, and the compiler could be compiled with a Java compiler only. then you just need to use a previous version of the Kotlin compiler to compile the Kotlin code in the next version of the Kotlin compiler, and iterate from there onwards.