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-rw-r--r--src/test/ui/traits/with-dst.rs22
1 files changed, 22 insertions, 0 deletions
diff --git a/src/test/ui/traits/with-dst.rs b/src/test/ui/traits/with-dst.rs
new file mode 100644
index 000000000..a3e3b31df
--- /dev/null
+++ b/src/test/ui/traits/with-dst.rs
@@ -0,0 +1,22 @@
+// build-pass (FIXME(62277): could be check-pass?)
+// #55266
+
+struct VTable<DST: ?Sized> {
+ _to_dst_ptr: fn(*mut ()) -> *mut DST,
+}
+
+trait HasVTableFor<DST: ?Sized + 'static> {
+ const VTABLE: &'static VTable<DST>;
+}
+
+impl<T, DST: ?Sized + 'static> HasVTableFor<DST> for T {
+ const VTABLE: &'static VTable<DST> = &VTable {
+ _to_dst_ptr: |_: *mut ()| unsafe { std::mem::zeroed() },
+ };
+}
+
+pub fn push<DST: ?Sized + 'static, T>() {
+ <T as HasVTableFor<DST>>::VTABLE;
+}
+
+fn main() {}