Can't bound types with paths from macros

[alexcrichton]

This code:

macro_rules! foo(($t:path) => {
    impl<T:$t> Foo for T {}
})

foo!(A)

fn main() {}

fails with

foo.rs:2:12: 2:13 error: expected `,` but found `an interpolated path`
foo.rs:2     impl<T:$t> Foo for T {}
                     ^

I may be doing something wrong, but this should be allowed, right?

[emberian]

Still an issue with 63cfc99

[pnkfelix]

Assigning P-low, not a 1.0 blocker.

[steveklabnik]

Triage:

hello.rs:2:16: 2:18 error: expected one of `,`, `=`, `>`, or `?`, found `A`
hello.rs:2         impl<T:$t> Foo for T {}
                          ^~

[KalitaAlexey]

Hi @steveklabnik,
I am working on it. Please assign it to me.