bjoernager/rust
bjoernager/rust
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use List<Ty<'tcx>> for tuples

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This commit is contained in:
lcnr 2022-02-07 16:06:31 +01:00
parent a9c1ab82f5
commit 1245131a11
53 changed files with 128 additions and 170 deletions
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8
compiler/rustc_trait_selection/src/traits/select/mod.rs
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@ -1852,9 +1852,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
ty::Str | ty::Slice(_) | ty::Dynamic(..) | ty::Foreign(..) => None,
ty::Tuple(tys) => Where(
obligation
.predicate
.rebind(tys.last().into_iter().map(|k| k.expect_ty()).collect()),
obligation.predicate.rebind(tys.last().map_or_else(Vec::new, |&last| vec![last])),
),
ty::Adt(def, substs) => {
@ -1917,7 +1915,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
ty::Tuple(tys) => {
// (*) binder moved here
Where(obligation.predicate.rebind(tys.iter().map(|k| k.expect_ty()).collect()))
Where(obligation.predicate.rebind(tys.iter().collect()))
}
ty::Closure(_, substs) => {
@ -1997,7 +1995,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
ty::Tuple(ref tys) => {
// (T1, ..., Tn) -- meets any bound that all of T1...Tn meet
t.rebind(tys.iter().map(|k| k.expect_ty()).collect())
t.rebind(tys.iter().collect())
}
ty::Closure(_, ref substs) => {