De-~[] libsemver and liburl

[sfackler]

No description provided.

[brson]

Is this vec! macro a permanent part of our Vec-construction strategy?

[huonw]

There has been some general talk of a generalising vec!() to a macro like seq!(a, b, c), that expands to something like

{
    let mut seq = Sequence::new();
    seq.insert(a);
    seq.insert(b);
    seq.insert(c);
    seq
}

where Sequence is a trait that types like Vec, HashMap and TreeSet etc. all implement. I.e.

let v: Vec<i32> = seq!(1, 2, 3);
let m: HashMap<int, ~str> = seq!((1, ~"foo"), (2, ~"bar"));
let s: TreeSet<&st>> = seq!("foo", "bar");

This could be our replacement for generic container literals in C++.

[brson]

From @pcwalton's other PR's it looks like we're just blanket removing all boxed arrays. I'm fine with that but note that it shouldn't be necessary and there are real use cases for ~[T].

[thestinger]

@huonw: Ideally, it would use a generic with_capacity method too.

@brson: I think all of the ~[T] need to be removed before the feature can be removed and the new implementation via DST can land. That's why @pcwalton has been stripping them all out.

[brson]

@thestinger I see, thanks.