rust/tests/ui/editions/dyn-trait-sugg-2021.rs

//@ edition:2021

trait Foo<T> {}

impl<T> dyn Foo<T> {
    fn hi(_x: T) {}
}

fn main() {
    Foo::hi(123);
    //~^ ERROR trait objects must include the `dyn` keyword
}
Fix 2021 `dyn` suggestion that used code as label The arguments to `span_suggestion` were in the wrong order, so the error looked like this: error[E0783]: trait objects without an explicit `dyn` are deprecated --> src/test/ui/editions/dyn-trait-sugg-2021.rs:10:5 \| 10 \| Foo::hi(123); \| ^^^ help: <dyn Foo>: `use `dyn`` Now the error looks like this, as expected: error[E0783]: trait objects without an explicit `dyn` are deprecated --> src/test/ui/editions/dyn-trait-sugg-2021.rs:10:5 \| 10 \| Foo::hi(123); \| ^^^ help: use `dyn`: `<dyn Foo>` This issue was only present in the 2021 error; the 2018 lint was correct. 2021-09-05 01:29:03 +00:00			`//@ edition:2021`

			`trait Foo<T> {}`

			`impl<T> dyn Foo<T> {`
Lint bare traits in AstConv. 2021-07-10 08:00:54 +00:00			`fn hi(_x: T) {}`
Fix 2021 `dyn` suggestion that used code as label The arguments to `span_suggestion` were in the wrong order, so the error looked like this: error[E0783]: trait objects without an explicit `dyn` are deprecated --> src/test/ui/editions/dyn-trait-sugg-2021.rs:10:5 \| 10 \| Foo::hi(123); \| ^^^ help: <dyn Foo>: `use `dyn`` Now the error looks like this, as expected: error[E0783]: trait objects without an explicit `dyn` are deprecated --> src/test/ui/editions/dyn-trait-sugg-2021.rs:10:5 \| 10 \| Foo::hi(123); \| ^^^ help: use `dyn`: `<dyn Foo>` This issue was only present in the 2021 error; the 2018 lint was correct. 2021-09-05 01:29:03 +00:00			`}`

			`fn main() {`
			`Foo::hi(123);`
Lint bare traits in AstConv. 2021-07-10 08:00:54 +00:00			//~^ ERROR trait objects must include the `dyn` keyword
Fix 2021 `dyn` suggestion that used code as label The arguments to `span_suggestion` were in the wrong order, so the error looked like this: error[E0783]: trait objects without an explicit `dyn` are deprecated --> src/test/ui/editions/dyn-trait-sugg-2021.rs:10:5 \| 10 \| Foo::hi(123); \| ^^^ help: <dyn Foo>: `use `dyn`` Now the error looks like this, as expected: error[E0783]: trait objects without an explicit `dyn` are deprecated --> src/test/ui/editions/dyn-trait-sugg-2021.rs:10:5 \| 10 \| Foo::hi(123); \| ^^^ help: use `dyn`: `<dyn Foo>` This issue was only present in the 2021 error; the 2018 lint was correct. 2021-09-05 01:29:03 +00:00			`}`