1 files changed, 72 insertions, 0 deletions
diff --git a/tests/ui/parser/keyword-union-as-identifier.rs b/tests/ui/parser/keyword-union-as-identifier.rs
new file mode 100644
index 000000000..7062557d7
--- /dev/null
+++ b/tests/ui/parser/keyword-union-as-identifier.rs
@@ -0,0 +1,72 @@
+// check-pass
+
+#![allow(non_camel_case_types)]
+#![allow(non_upper_case_globals)]
+
+mod union {
+    type union = i32;
+
+    pub struct Bar {
+        pub union: union,
+    }
+
+    pub fn union() -> Bar {
+        Bar {
+            union: 5
+        }
+    }
+}
+
+mod struct_union {
+    pub struct union {
+        pub union: u32
+    }
+    static union: union = union { union: 0 };
+
+    impl union {
+        pub fn union<'union>() -> &'union union {
+            &union
+        }
+    }
+    impl union {}
+    trait Foo {}
+    impl Foo for union {}
+    trait Bar {
+        fn bar() {}
+    }
+    impl Bar for union {}
+}
+
+mod union_union {
+    pub union union {
+        pub union: u32
+    }
+    const union: union = union { union: 0 };
+    impl union {
+        pub fn union() -> union {
+            union
+        }
+    }
+}
+
+mod trait_union {
+    pub trait union {
+        fn union() {}
+    }
+    impl union for () {}
+}
+
+macro_rules! ty {
+    ($ty:ty { $($field:ident:$field_ty:ty)* }) => {};
+}
+
+fn main() {
+    let union = union::union();
+    let _ = union.union;
+    let _ = struct_union::union::union().union;
+    let union = union_union::union::union();
+    let _ = unsafe { union.union };
+    <() as trait_union::union>::union();
+    ty!(union {});
+    ty!(union { union: union });
+}