rust/tests/ui/nll/issue-67007-escaping-data.rs
2023-01-11 09:32:08 +00:00

25 lines
606 B
Rust

// Regression test for issue #67007
// Ensures that we show information about the specific regions involved
// Covariant over 'a, invariant over 'tcx
struct FnCtxt<'a, 'tcx: 'a>(&'a (), *mut &'tcx ());
impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
fn use_it(&self, _: &'tcx ()) {}
}
struct Consumer<'tcx>(&'tcx ());
impl<'tcx> Consumer<'tcx> {
fn bad_method<'a>(&self, fcx: &FnCtxt<'a, 'tcx>) {
let other = self.use_fcx(fcx); //~ ERROR lifetime may not live long enough
fcx.use_it(other);
}
fn use_fcx<'a>(&self, _: &FnCtxt<'a, 'tcx>) -> &'a () {
&()
}
}
fn main() {}