rust/tests/ui/feature-gates/feature-gate-overlapping_marker_traits.rs

use std::fmt::{Debug, Display};

trait MyMarker {}

impl<T: Display> MyMarker for T {}
impl<T: Debug> MyMarker for T {}
//~^ ERROR E0119

fn main() {}
update tests slightly 2017-03-30 12:54:28 +00:00			`use std::fmt::{Debug, Display};`

Put overlapping impls behind feature gate, add tests I've added some explicit tests that negative impls are allowed to overlap, and also to make sure that the feature doesn't interfere with specialization. I've not added an explicit test for positive overlapping with negative, as that's already tested elsewhere. 2017-03-17 18:16:29 +00:00			`trait MyMarker {}`

update tests slightly 2017-03-30 12:54:28 +00:00			`impl<T: Display> MyMarker for T {}`
			`impl<T: Debug> MyMarker for T {}`
Put overlapping impls behind feature gate, add tests I've added some explicit tests that negative impls are allowed to overlap, and also to make sure that the feature doesn't interfere with specialization. I've not added an explicit test for positive overlapping with negative, as that's already tested elsewhere. 2017-03-17 18:16:29 +00:00			`//~^ ERROR E0119`

			`fn main() {}`