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-rw-r--r--src/test/ui/traits/issue-82830.rs16
1 files changed, 16 insertions, 0 deletions
diff --git a/src/test/ui/traits/issue-82830.rs b/src/test/ui/traits/issue-82830.rs
new file mode 100644
index 000000000..c8289b2e3
--- /dev/null
+++ b/src/test/ui/traits/issue-82830.rs
@@ -0,0 +1,16 @@
+trait A<Y, N> {
+ type B;
+}
+
+type MaybeBox<T> = <T as A<T, Box<T>>>::B;
+struct P {
+ t: MaybeBox<P>, //~ ERROR: overflow evaluating the requirement `P: Sized`
+}
+
+impl<Y, N> A<Y, N> for P {
+ type B = N;
+}
+
+fn main() {
+ let t: MaybeBox<P>;
+}