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Encode opt_rpitit_info for associated types

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This commit is contained in:
Michael Goulet 2023-03-13 17:22:16 +00:00
parent 669e751639
commit 0404e264a2
5 changed files with 16 additions and 8 deletions
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9
compiler/rustc_ty_utils/src/ty.rs
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@ -119,12 +119,9 @@ fn adt_sized_constraint(tcx: TyCtxt<'_>, def_id: DefId) -> &[Ty<'_>] {
fn param_env(tcx: TyCtxt<'_>, def_id: DefId) -> ty::ParamEnv<'_> {
// When computing the param_env of an RPITIT, copy param_env of the containing function. The
// synthesized associated type doesn't have extra predicates to assume.
let def_id =
if let Some(ImplTraitInTraitData::Trait { fn_def_id, .. }) = tcx.opt_rpitit_info(def_id) {
fn_def_id
} else {
def_id
};
if let Some(ImplTraitInTraitData::Trait { fn_def_id, .. }) = tcx.opt_rpitit_info(def_id) {
return tcx.param_env(fn_def_id);
}
// Compute the bounds on Self and the type parameters.
let ty::InstantiatedPredicates { mut predicates, .. } =