rust/tests/ui/traits/object/macro-matcher.rs

// `ty` matcher accepts trait object types

macro_rules! m {
    ($t: ty) => ( let _: $t; )
}

fn main() {
    m!(dyn Copy + Send + 'static);
    //~^ ERROR the trait `Copy` cannot be made into an object
    m!(dyn 'static + Send);
    m!(dyn 'static +); //~ ERROR at least one trait is required for an object type
}
Refactor parsing of trait object types 2017-03-16 16:47:32 -05:00			// `ty` matcher accepts trait object types

			`macro_rules! m {`
			`($t: ty) => ( let _: $t; )`
			`}`

			`fn main() {`
Update ui test suite to use dyn 2019-05-28 13:46:13 -05:00			`m!(dyn Copy + Send + 'static);`
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 02:40:56 -05:00			//~^ ERROR the trait `Copy` cannot be made into an object
Update ui test suite to use dyn 2019-05-28 13:46:13 -05:00			`m!(dyn 'static + Send);`
adding in these files that didn't get added in previous commit 2019-06-21 11:12:28 -05:00			`m!(dyn 'static +); //~ ERROR at least one trait is required for an object type`
Refactor parsing of trait object types 2017-03-16 16:47:32 -05:00			`}`