Trait bounds in parameters

[GregBowyer]

Given this I get the following error:

error[E0277]: the trait bound `N: Spanned` is not satisfied
  --> janus/thesius/sql_parser/src/grammar.rs:46:68
   |
15 | fn spanned<N: Spanned>(n: N, start: usize, end: usize) -> N {
   |               ------- required by this bound in `grammar::spanned`
...
46 |             = start:position!() node:x() end:position!() { spanned(node, start, end) }
   |                                                                    ^^^^ the trait `Spanned` is not implemented for `N`
   |
help: consider restricting type parameter `N`
   |
45 |         rule SPAN<N: Spanned>(x: rule<N>) -> N
   |                    ^^^^^^^^^

but adding the bound is not valid for rust-peg

error: expected one of ",", ">"
  --> janus/thesius/sql_parser/src/grammar.rs:45:20
   |
45 |         rule SPAN<N: Spanned>(x: rule<N>) -> N
   |                    ^

Thoughts on this?

[kevinmehall]

Fixed in 4b7dcaa