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kotlinlang

[Protocol Buffers] Would you welcome a way to write .proto files with kotlin DSL scripts, say .proto.kts?

My primary use case would be to reduce boilerplate of some common structures, otherwise I have to use some marco engine.

Hypothetical example:
```val Wheel by message {
   field("index", int32, 1)
   field("size", float, 2)
}

val Car by message {
   list("wheels", Wheel, 1)
}```

if I may
```val Wheel by message {
   "index".int32 = 1
}```

<@U2H3SABQF> Well, this exact one probably wouldn't do because there is no way to use custom message type, also modifiers like `optional` would have to be supported, but yeah, some magic like that could probably be applied.

<https://kotlin.github.io/kotlinx.serialization/kotlinx-serialization-protobuf/kotlinx-serialization-protobuf/kotlinx.serialization.protobuf.schema/index.html|https://kotlin.github.io/kotlinx.serialization/kotlinx-serialization-protobuf/kotlinx[…]on-protobuf/kotlinx.serialization.protobuf.schema/index.html>