rust/tests/ui/specialization/defaultimpl/specialization-feature-gate-default.rs

// Check that specialization must be ungated to use the `default` keyword

trait Foo {
    fn foo(&self);
}

default impl<T> Foo for T { //~ ERROR specialization is unstable
    fn foo(&self) {}
}

fn main() {}
support `default impl` for specialization this commit implements the first step of the `default impl` feature: all items in a `default impl` are (implicitly) `default` and hence specializable. In order to test this feature I've copied all the tests provided for the `default` method implementation (in run-pass/specialization and compile-fail/specialization directories) and moved the `default` keyword from the item to the impl. See referenced issue for further info 2016-11-18 16:14:42 +00:00			// Check that specialization must be ungated to use the `default` keyword

			`trait Foo {`
			`fn foo(&self);`
			`}`

			`default impl<T> Foo for T { //~ ERROR specialization is unstable`
			`fn foo(&self) {}`
			`}`

			`fn main() {}`