A hashability problem

[lorentey (Karoy "Vector is not an Array type" Lorentey)]

@total_swiftification

But does anybody has an opinion about the actual problem which is that Hashable s should also be Equatable s

This is because hashing is defined in terms of equality, and is meaningless without it.

@total_swiftification

and that Hashable is hardcoded to provide only Int as hash representing value and you cant customize it?

Hashing -- by definition -- works by mapping arbitrary types into a fixed-width bit sequence, which is usually modeled as an integer value.

But this is not how Hashable works -- you are supposed to implement hash(into:), not hashValue. See SE-0206 for the full explanation for this.