Finish uplifting all of structural_traits

2 files changed, 30 insertions, 2 deletions

diff --git a/compiler/rustc_middle/src/ty/context.rs b/compiler/rustc_middle/src/ty/context.rs
index 98c60ffee12..ebcb47966eb 100644
--- a/compiler/rustc_middle/src/ty/context.rs
+++ b/compiler/rustc_middle/src/ty/context.rs
@@ -70,9 +70,9 @@ use rustc_span::{Span, DUMMY_SP};
 use rustc_target::abi::{FieldIdx, Layout, LayoutS, TargetDataLayout, VariantIdx};
 use rustc_target::spec::abi;
 use rustc_type_ir::fold::TypeFoldable;
+use rustc_type_ir::lang_items::TraitSolverLangItem;
 use rustc_type_ir::TyKind::*;
-use rustc_type_ir::WithCachedTypeInfo;
-use rustc_type_ir::{CollectAndApply, Interner, TypeFlags};
+use rustc_type_ir::{CollectAndApply, Interner, TypeFlags, WithCachedTypeInfo};
 use tracing::{debug, instrument};
 
 use std::assert_matches::assert_matches;
@@ -302,6 +302,25 @@ impl<'tcx> Interner for TyCtxt<'tcx> {
     fn has_target_features(self, def_id: DefId) -> bool {
         !self.codegen_fn_attrs(def_id).target_features.is_empty()
     }
+
+    fn require_lang_item(self, lang_item: TraitSolverLangItem) -> DefId {
+        self.require_lang_item(
+            match lang_item {
+                TraitSolverLangItem::Future => hir::LangItem::Future,
+                TraitSolverLangItem::FutureOutput => hir::LangItem::FutureOutput,
+                TraitSolverLangItem::AsyncFnKindHelper => hir::LangItem::AsyncFnKindHelper,
+                TraitSolverLangItem::AsyncFnKindUpvars => hir::LangItem::AsyncFnKindUpvars,
+            },
+            None,
+        )
+    }
+
+    fn associated_type_def_ids(self, def_id: DefId) -> impl Iterator<Item = DefId> {
+        self.associated_items(def_id)
+            .in_definition_order()
+            .filter(|assoc_item| matches!(assoc_item.kind, ty::AssocKind::Type))
+            .map(|assoc_item| assoc_item.def_id)
+    }
 }
 
 impl<'tcx> rustc_type_ir::inherent::Abi<TyCtxt<'tcx>> for abi::Abi {
diff --git a/compiler/rustc_middle/src/ty/predicate.rs b/compiler/rustc_middle/src/ty/predicate.rs
index 785aa8d456f..0f63490ea01 100644
--- a/compiler/rustc_middle/src/ty/predicate.rs
+++ b/compiler/rustc_middle/src/ty/predicate.rs
@@ -51,6 +51,14 @@ impl<'tcx> rustc_type_ir::inherent::Predicate<TyCtxt<'tcx>> for Predicate<'tcx>
     }
 }
 
+impl<'tcx> rustc_type_ir::inherent::IntoKind for Predicate<'tcx> {
+    type Kind = ty::Binder<'tcx, ty::PredicateKind<'tcx>>;
+
+    fn kind(self) -> Self::Kind {
+        self.kind()
+    }
+}
+
 impl<'tcx> rustc_type_ir::visit::Flags for Predicate<'tcx> {
     fn flags(&self) -> TypeFlags {
         self.0.flags
@@ -120,6 +128,7 @@ impl<'tcx> Predicate<'tcx> {
     /// unsoundly accept some programs. See #91068.
     #[inline]
     pub fn allow_normalization(self) -> bool {
+        // Keep this in sync with the one in `rustc_type_ir::inherent`!
         match self.kind().skip_binder() {
             PredicateKind::Clause(ClauseKind::WellFormed(_))
             | PredicateKind::AliasRelate(..)