File: region-extra-2.rs

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// Regression test for issue #22779. An extra where clause was
// permitted on the impl that is not present on the trait.

trait Tr<'a, T> {
    fn renew<'b: 'a>(self) -> &'b mut [T];
}

impl<'a, T> Tr<'a, T> for &'a mut [T] {
    fn renew<'b: 'a>(self) -> &'b mut [T] where 'a: 'b {
        //~^ ERROR E0276
        &mut self[..]
    }
}

fn main() { }