Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 99 insertions, 0 deletions

diff --git a/src/test/ui/associated-types/issue-87261.rs b/src/test/ui/associated-types/issue-87261.rs
new file mode 100644
index 000000000..384561f8c
--- /dev/null
+++ b/src/test/ui/associated-types/issue-87261.rs
@@ -0,0 +1,99 @@
+trait Foo {}
+
+trait Trait {
+    type Associated;
+}
+trait DerivedTrait: Trait {}
+trait GenericTrait<A> {
+    type Associated;
+}
+
+struct Impl;
+impl Foo for Impl {}
+impl Trait for Impl {
+    type Associated = ();
+}
+impl DerivedTrait for Impl {}
+impl<A> GenericTrait<A> for Impl {
+    type Associated = ();
+}
+
+fn returns_opaque() -> impl Trait + 'static {
+    Impl
+}
+fn returns_opaque_derived() -> impl DerivedTrait + 'static {
+    Impl
+}
+fn returns_opaque_foo() -> impl Trait + Foo {
+    Impl
+}
+fn returns_opaque_derived_foo() -> impl DerivedTrait + Foo {
+    Impl
+}
+fn returns_opaque_generic() -> impl GenericTrait<()> + 'static {
+    Impl
+}
+fn returns_opaque_generic_foo() -> impl GenericTrait<()> + Foo {
+    Impl
+}
+fn returns_opaque_generic_duplicate() -> impl GenericTrait<()> + GenericTrait<u8> {
+    Impl
+}
+
+fn accepts_trait<T: Trait<Associated = ()>>(_: T) {}
+fn accepts_generic_trait<T: GenericTrait<(), Associated = ()>>(_: T) {}
+
+fn check_generics<A, B, C, D, E, F, G>(a: A, b: B, c: C, d: D, e: E, f: F, g: G)
+where
+    A: Trait + 'static,
+    B: DerivedTrait + 'static,
+    C: Trait + Foo,
+    D: DerivedTrait + Foo,
+    E: GenericTrait<()> + 'static,
+    F: GenericTrait<()> + Foo,
+    G: GenericTrait<()> + GenericTrait<u8>,
+{
+    accepts_trait(a);
+    //~^ ERROR type mismatch resolving `<A as Trait>::Associated == ()`
+
+    accepts_trait(b);
+    //~^ ERROR type mismatch resolving `<B as Trait>::Associated == ()`
+
+    accepts_trait(c);
+    //~^ ERROR type mismatch resolving `<C as Trait>::Associated == ()`
+
+    accepts_trait(d);
+    //~^ ERROR type mismatch resolving `<D as Trait>::Associated == ()`
+
+    accepts_generic_trait(e);
+    //~^ ERROR type mismatch resolving `<E as GenericTrait<()>>::Associated == ()`
+
+    accepts_generic_trait(f);
+    //~^ ERROR type mismatch resolving `<F as GenericTrait<()>>::Associated == ()`
+
+    accepts_generic_trait(g);
+    //~^ ERROR type mismatch resolving `<G as GenericTrait<()>>::Associated == ()`
+}
+
+fn main() {
+    accepts_trait(returns_opaque());
+    //~^ ERROR type mismatch resolving `<impl Trait as Trait>::Associated == ()`
+
+    accepts_trait(returns_opaque_derived());
+    //~^ ERROR type mismatch resolving `<impl DerivedTrait as Trait>::Associated == ()`
+
+    accepts_trait(returns_opaque_foo());
+    //~^ ERROR type mismatch resolving `<impl Trait + Foo as Trait>::Associated == ()`
+
+    accepts_trait(returns_opaque_derived_foo());
+    //~^ ERROR type mismatch resolving `<impl DerivedTrait + Foo as Trait>::Associated == ()`
+
+    accepts_generic_trait(returns_opaque_generic());
+    //~^ ERROR type mismatch resolving `<impl GenericTrait<()> as GenericTrait<()>>::Associated == ()`
+
+    accepts_generic_trait(returns_opaque_generic_foo());
+    //~^ ERROR type mismatch resolving `<impl GenericTrait<()> + Foo as GenericTrait<()>>::Associated == ()`
+
+    accepts_generic_trait(returns_opaque_generic_duplicate());
+    //~^ ERROR type mismatch resolving `<impl GenericTrait<()> + GenericTrait<u8> as GenericTrait<()>>::Associated == ()`
+}