rust/tests/ui/issues/issue-16562.rs

trait MatrixShape {}

struct Col<D, C> {
    data: D,
    col: C,
}

trait Collection { fn len(&self) -> usize; }

impl<T, M: MatrixShape> Collection for Col<M, usize> {
//~^ ERROR type parameter `T` is not constrained
    fn len(&self) -> usize {
        unimplemented!()
    }
}

fn main() {}
Add tests for a few fixed issues 2014-10-16 19:40:21 +00:00			`trait MatrixShape {}`

			`struct Col<D, C> {`
			`data: D,`
			`col: C,`
			`}`

Update compile fail tests to use usize. 2015-01-08 11:02:42 +00:00			`trait Collection { fn len(&self) -> usize; }`
collections: Remove all collections traits As part of the collections reform RFC, this commit removes all collections traits in favor of inherent methods on collections themselves. All methods should continue to be available on all collections. This is a breaking change with all of the collections traits being removed and no longer being in the prelude. In order to update old code you should move the trait implementations to inherent implementations directly on the type itself. Note that some traits had default methods which will also need to be implemented to maintain backwards compatibility. [breaking-change] cc #18424 2014-10-30 20:43:24 +00:00
Update compile fail tests to use usize. 2015-01-08 11:02:42 +00:00			`impl<T, M: MatrixShape> Collection for Col<M, usize> {`
Fix fallout in tests. 2015-01-05 20:56:07 +00:00			//~^ ERROR type parameter `T` is not constrained
Update compile fail tests to use usize. 2015-01-08 11:02:42 +00:00			`fn len(&self) -> usize {`
Add tests for a few fixed issues 2014-10-16 19:40:21 +00:00			`unimplemented!()`
			`}`
			`}`

			`fn main() {}`