Operator overloading for collections?

[david Grajales]

Dear Amber team,

I hope this message finds you well.

I recently watched Brian’s talk "Growing the java language" and I found the
discussion on operator overloading particularly interesting. I appreciated
how the proposed approach allows operator overloading in a more restricted
and safer way, by enforcing algebraic laws.

This immediately made me think about potential use cases for
collections—for example, using operators for union (+), difference (-),
exclusion, and similar operations. However, since this feature is intended
to be limited to value classes, and the current collection classes are not
value-based, it seems they would not benefit from these new operator
overloading capabilities.

My question is: are there any plans to enhance the collections framework
with value-class-based variants, so that they could take advantage of this
feature? Or is this idea (or any other related to the use case) not
currently under consideration?

I know this is still under discussion, I am just curious about this
particular use case.

Thank you very much for your work and for your time.

Best regards, and always yours.
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