Find Value by Annotation about enumeratum HOT 5 CLOSED

Can you expand a little bit on what you mean by avoiding the overhead of overriding value? Current usage looks quite similar to what you've got there.

sealed abstract class LibraryItem(val value: Int, val name: String) extends IntEnumEntry

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Currently, i have to override the method value:

sealed abstract class LibraryItem(val value: Int, val name: String) extends IntEnumEntry {
  override def value: Int = code
}

What I propose is a macro annotation for the parameter:

sealed abstract class Code(@Value val value: Int, val door: String) extends IntEnumEntry

Here it's not necessary to override the value method...

from enumeratum.

Currently, i have to override the method value:

sealed abstract class LibraryItem(val value: Int, val name: String) extends IntEnumEntry {
  override def value: Int = code
}

What I propose is a macro annotation for the parameter:

sealed abstract class Code(@Value val value: Int, val door: String) extends IntEnumEntry

Here it's not necessary to override the value method...

Just to make sure I understand fully what you mean, you probably have this situation right now:

sealed abstract class LibraryItem(val code: Int, val name: String) extends IntEnumEntry {
  override def value: Int = code
}

and what you want is

sealed abstract class Code(@Value val code: Int, val door: String) extends IntEnumEntry

?

from enumeratum.

Exactly! :)

from enumeratum.

I think it's do-able, but maybe it's a nice-to-have. Also, I don't think there's going to be much actual runtime performance overhead to the alias method once JIT kicks in.

If you would like to contribute this feature, please feel free to give it a try :) My only request is that it be done without adding dependencies and that error cases be handled nicely !

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