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-rw-r--r--tests/ui/rfc-2294-if-let-guard/warns.rs21
1 files changed, 21 insertions, 0 deletions
diff --git a/tests/ui/rfc-2294-if-let-guard/warns.rs b/tests/ui/rfc-2294-if-let-guard/warns.rs
new file mode 100644
index 00000000000..3ad1a50c61f
--- /dev/null
+++ b/tests/ui/rfc-2294-if-let-guard/warns.rs
@@ -0,0 +1,21 @@
+#![feature(if_let_guard)]
+
+#[deny(irrefutable_let_patterns)]
+fn irrefutable_let_guard() {
+    match Some(()) {
+        Some(x) if let () = x => {}
+        //~^ ERROR irrefutable `if let` guard
+        _ => {}
+    }
+}
+
+#[deny(unreachable_patterns)]
+fn unreachable_pattern() {
+    match Some(()) {
+        x if let None | None = x => {}
+        //~^ ERROR unreachable pattern
+        _ => {}
+    }
+}
+
+fn main() {}