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Move binder for dyn to each list item

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This commit is contained in:
Jack Huey 2020-12-11 15:02:46 -05:00
parent aec0fc58ad
commit 42b267d221
1 changed files with 13 additions and 11 deletions
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24
src/value_and_place.rs
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@ -480,17 +480,19 @@ fn assert_assignable<'tcx>(
// fn(&T) -> for<'l> fn(&'l T) is allowed // fn(&T) -> for<'l> fn(&'l T) is allowed
} }
(&ty::Dynamic(from_traits, _), &ty::Dynamic(to_traits, _)) => { (&ty::Dynamic(from_traits, _), &ty::Dynamic(to_traits, _)) => {
let from_traits = fx for (from, to) in from_traits.iter().zip(to_traits) {
.tcx let from = fx
.normalize_erasing_late_bound_regions(ParamEnv::reveal_all(), from_traits); .tcx
let to_traits = fx .normalize_erasing_late_bound_regions(ParamEnv::reveal_all(), from);
.tcx let to = fx
.normalize_erasing_late_bound_regions(ParamEnv::reveal_all(), to_traits); .tcx
assert_eq!( .normalize_erasing_late_bound_regions(ParamEnv::reveal_all(), to);
from_traits, to_traits, assert_eq!(
"Can't write trait object of incompatible traits {:?} to place with traits {:?}\n\n{:#?}", from, to,
from_traits, to_traits, fx, "Can't write trait object of incompatible traits {:?} to place with traits {:?}\n\n{:#?}",
); from_traits, to_traits, fx,
);
}
// dyn for<'r> Trait<'r> -> dyn Trait<'_> is allowed // dyn for<'r> Trait<'r> -> dyn Trait<'_> is allowed
} }
_ => { _ => {