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authorAlbert Larsan <74931857+albertlarsan68@users.noreply.github.com>2023-01-05 09:13:28 +0100
committerAlbert Larsan <74931857+albertlarsan68@users.noreply.github.com>2023-01-11 09:32:08 +0000
commitcf2dff2b1e3fa55fa5415d524200070d0d7aacfe (patch)
tree40a88d9a46aaf3e8870676eb2538378b75a263eb /tests/ui/traits/trait-upcasting/cyclic-trait-resolution.rs
parentca855e6e42787ecd062d81d53336fe6788ef51a9 (diff)
downloadrust-cf2dff2b1e3fa55fa5415d524200070d0d7aacfe.tar.gz
rust-cf2dff2b1e3fa55fa5415d524200070d0d7aacfe.zip
Move /src/test to /tests
Diffstat (limited to 'tests/ui/traits/trait-upcasting/cyclic-trait-resolution.rs')
-rw-r--r--tests/ui/traits/trait-upcasting/cyclic-trait-resolution.rs13
1 files changed, 13 insertions, 0 deletions
diff --git a/tests/ui/traits/trait-upcasting/cyclic-trait-resolution.rs b/tests/ui/traits/trait-upcasting/cyclic-trait-resolution.rs
new file mode 100644
index 00000000000..511e41562b2
--- /dev/null
+++ b/tests/ui/traits/trait-upcasting/cyclic-trait-resolution.rs
@@ -0,0 +1,13 @@
+trait A: B + A {}
+//~^ ERROR cycle detected when computing the super predicates of `A` [E0391]
+
+trait B {}
+
+impl A for () {}
+
+impl B for () {}
+
+fn main() {
+    let a: Box<dyn A> = Box::new(());
+    let _b: Box<dyn B> = a;
+}