I'd like to generate an override for a class at compile time. for example, an override of `hashCode(...

# getting-started

[y]

I'd like to generate an override for a class at compile time. for example, an override of hashCode(). is this possible using annotations?

[jamshedalamqaderi]

You can do this using ksp plugin

[y]

oh lovely, that's exactly what I wanted

[zyfuni]

https://kotlinlang.slack.com/archives/C013BA8EQSE/p1691326740485449?thread_ts=1691326740.485449&cid=C013BA8EQSE

[Casey Brooks]

KSP, like Java’s annotation processor, cannot modify source code, it is only capable of generating new code. It cannot add functions/properties to existing classes, for example. While you can use KSP to generate extension functions which look like adding members to a class, it cannot be used to generate overrides like hashCode()

Unlike a full-fledged compiler plugin, processors cannot modify the code. A compiler plugin that changes language semantics can sometimes be very confusing. KSP avoids that by treating the source programs as read-only.

https://kotlinlang.org/docs/ksp-overview.html#overview