Check pointee metadata correctly in ui test

rust-lang · Mar 30, 2023 · 321a5db · 321a5db
1 parent f5c78c4
commit 321a5db
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Showing 2 changed files with 9 additions and 13 deletions.
diff --git a/compiler/rustc_trait_selection/src/solve/project_goals.rs b/compiler/rustc_trait_selection/src/solve/project_goals.rs
@@ -346,10 +346,8 @@ impl<'tcx> assembly::GoalKind<'tcx> for ProjectionPredicate<'tcx> {
                         LangItem::Sized,
                         [ty::GenericArg::from(goal.predicate.self_ty())],
                     ));
-
                     ecx.add_goal(goal.with(tcx, sized_predicate));
-                    ecx.eq(goal.param_env, goal.predicate.term, tcx.types.unit.into())?;
-                    return ecx.evaluate_added_goals_and_make_canonical_response(Certainty::Yes);
+                    tcx.types.unit
                 }
 
                 ty::Adt(def, substs) if def.is_struct() => {

diff --git a/tests/ui/traits/new-solver/pointee.rs b/tests/ui/traits/new-solver/pointee.rs
@@ -7,17 +7,15 @@ use std::ptr::{DynMetadata, Pointee};
 trait Trait<U> {}
 struct MyDst<T: ?Sized>(T);
 
-fn works<T>() {
-    let _: <T as Pointee>::Metadata = ();
-    let _: <[T] as Pointee>::Metadata = 1_usize;
-    let _: <str as Pointee>::Metadata = 1_usize;
-    let _: <dyn Trait<T> as Pointee>::Metadata = give::<DynMetadata<dyn Trait<T>>>();
-    let _: <MyDst<T> as Pointee>::Metadata = ();
-    let _: <((((([u8],),),),),) as Pointee>::Metadata = 1_usize;
-}
+fn meta_is<T: Pointee<Metadata = U> + ?Sized, U>() {}
 
-fn give<U>() -> U {
-    loop {}
+fn works<T>() {
+    meta_is::<T, ()>();
+    meta_is::<[T], usize>();
+    meta_is::<str, usize>();
+    meta_is::<dyn Trait<T>, DynMetadata<dyn Trait<T>>>();
+    meta_is::<MyDst<T>, ()>();
+    meta_is::<((((([u8],),),),),), usize>();
 }
 
 fn main() {}