crate fn universal_regions_outlived_by<'a>(
        &'a self,
        r: N,
    ) -> impl Iterator<Item = RegionVid> + 'a {
        self.free_regions
            .row(r)
            .into_iter()
            .flat_map(|set| set.iter())
    }
/// Returns just the universal regions that are contained in a given region's value.
Returns just the universal regions that are contained in a given region's value.
Returns just the universal regions that are contained in a given region ' s value .
crate fn universal_regions_outlived_by<'a>(
        &'a self,
        r: N,
    ) -> impl Iterator<Item = RegionVid> + 'a {
        self.free_regions
            .row(r)
            .into_iter()
            .flat_map(|set| set.iter())
    }
crate fn universal_regions_outlived_by < ' a > ( & ' a self , r : N , ) -> impl Iterator < Item = RegionVid > + ' a { self . free_regions . row ( r ) . into_iter ( ) . flat_map ( | set | set . iter ( ) ) }
Returns just the universal regions that are contained in a given region's value.
Returns just the universal regions that are contained in a given region ' s value .
&'a self
r
N