1 files changed, 20 insertions, 0 deletions
diff --git a/tests/ui/resolve/shadow-const-param.rs b/tests/ui/resolve/shadow-const-param.rs
new file mode 100644
index 00000000000..c435c16dc67
--- /dev/null
+++ b/tests/ui/resolve/shadow-const-param.rs
@@ -0,0 +1,20 @@
+// Checks that const parameters cannot be shadowed with fresh bindings
+// even in syntactically unambiguous contexts. See
+// https://github.com/rust-lang/rust/issues/33118#issuecomment-233962221
+
+fn foo<const N: i32>(i: i32) -> bool {
+    match i {
+        N @ _ => true,
+        //~^ ERROR: match bindings cannot shadow const parameters [E0530]
+    }
+}
+
+fn bar<const N: i32>(i: i32) -> bool {
+    let N @ _ = 0;
+    //~^ ERROR: let bindings cannot shadow const parameters [E0530]
+    match i {
+        N @ _ => true,
+    }
+}
+
+fn main() {}