[therein]

It is like S: where S = []E where E: comperable.

I like the way Rust has it a lot more but it is still imperfect and feels arbitrary in ways.

I find myself unsure where to put the templatization parameters and it doesn't feel perfectly symmetrical.

Unsure if impl MyType<T> where T: X

is comperable to impl MyType<T: X> Sometimes it needs impl<T> MyType<T> where T: X

[shakow]

Agreed, the Rust syntax is no golden standard either - but at least it's regular; this one really weirds me out.