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Add bound_explicit_item_bounds and bound_item_bounds

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This commit is contained in:
Jack Huey 2022-05-10 22:28:50 -04:00
parent 0247faed29
commit 91afd02632
11 changed files with 120 additions and 76 deletions
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6
compiler/rustc_trait_selection/src/traits/project.rs
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@ -1276,10 +1276,8 @@ fn assemble_candidates_from_trait_def<'cx, 'tcx>(
// Check whether the self-type is itself a projection.
// If so, extract what we know from the trait and try to come up with a good answer.
let bounds = match *obligation.predicate.self_ty().kind() {
ty::Projection(ref data) => {
EarlyBinder(tcx.item_bounds(data.item_def_id)).subst(tcx, data.substs)
}
ty::Opaque(def_id, substs) => EarlyBinder(tcx.item_bounds(def_id)).subst(tcx, substs),
ty::Projection(ref data) => tcx.bound_item_bounds(data.item_def_id).subst(tcx, data.substs),
ty::Opaque(def_id, substs) => tcx.bound_item_bounds(def_id).subst(tcx, substs),
ty::Infer(ty::TyVar(_)) => {
// If the self-type is an inference variable, then it MAY wind up
// being a projected type, so induce an ambiguity.