rust/tests/ui/traits/issue-43784-supertrait.rs

pub trait Partial: Copy {
}

pub trait Complete: Partial {
}

impl<T> Partial for T where T: Complete {}
impl<T> Complete for T {} //~ ERROR the trait bound `T: Copy` is not satisfied

fn main() {}
Add tests 2017-08-10 15:13:34 +02:00			`pub trait Partial: Copy {`
			`}`

			`pub trait Complete: Partial {`
			`}`

			`impl<T> Partial for T where T: Complete {}`
pretty: trim paths of unique symbols If a symbol name can only be imported from one place for a type, and as long as it was not glob-imported anywhere in the current crate, we can trim its printed path and print only the name. This has wide implications on error messages with types, for example, shortening `std::vec::Vec` to just `Vec`, as long as there is no other `Vec` importable anywhere. This adds a new '-Z trim-diagnostic-paths=false' option to control this feature. On the good path, with no diagnosis printed, we should try to avoid issuing this query, so we need to prevent trimmed_def_paths query on several cases. This change also relies on a previous commit that differentiates between `Debug` and `Display` on various rustc types, where the latter is trimmed and presented to the user and the former is not. 2020-09-02 10:40:56 +03:00			impl<T> Complete for T {} //~ ERROR the trait bound `T: Copy` is not satisfied
cleanup: Add main functions to some UI tests 2018-08-23 02:19:38 +03:00
			`fn main() {}`