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Subject: AW: [PHP-DEV] [RFC:generics]
From: php@tutteli.ch ("Robert Stoll")

> > In this case I would suggest to use class A<T <: T1> which leaves =
room
> > open to define lower bounds later on
>=20
> IMHO that is bordering on unreadable - all those brackets are really =
confusing and hard on the eyes.
>=20

I agree, it looks quite ugly :-)=20
Therefore another suggestion:

class A<T1, T2> [Foo <: T1, T2 <: Bar] {
  //....
}

> Either way, using : does not prevent us from adding lower bounds later =
on - but even then, upper bound is the 99% use
> case, so I don't think it makes sense to design the syntax around a =
possible future upper bound.
>=20
> If we do support it in the future, I don't think anyone's going to =
care what it looks like, as it's unlikely most people will ever
> encounter it or need it.
>=20

You're probably right. I use wildcard types with lower bounds in Java =
from time to time but rather rarely.=20