1 files changed, 20 insertions, 0 deletions
diff --git a/src/test/ui/tag-variant-cast-non-nullary.rs b/src/test/ui/tag-variant-cast-non-nullary.rs
new file mode 100644
index 000000000..0d0c6188a
--- /dev/null
+++ b/src/test/ui/tag-variant-cast-non-nullary.rs
@@ -0,0 +1,20 @@
+// run-rustfix
+#![allow(dead_code, unused_variables)]
+enum NonNullary {
+    Nullary,
+    Other(isize),
+}
+
+impl From<NonNullary> for isize {
+    fn from(val: NonNullary) -> isize {
+        match val {
+            NonNullary::Nullary => 0,
+            NonNullary::Other(i) => i,
+        }
+    }
+}
+
+fn main() {
+    let v = NonNullary::Nullary;
+    let val = v as isize; //~ ERROR non-primitive cast: `NonNullary` as `isize` [E0605]
+}