Ensure macros are not affected

rust-lang · Jan 17, 2023 · 12d18e4 · 12d18e4
1 parent c847a01
commit 12d18e4
Showing 1 changed file with 20 additions and 0 deletions.
diff --git a/tests/ui/parser/fake-anon-enums-in-macros.rs b/tests/ui/parser/fake-anon-enums-in-macros.rs
@@ -0,0 +1,20 @@
+// build-pass
+macro_rules! check_ty {
+    ($Z:ty) => { compile_error!("triggered"); };
+    ($X:ty | $Y:ty) => { $X };
+}
+
+macro_rules! check {
+    ($Z:ty) => { compile_error!("triggered"); };
+    ($X:ty | $Y:ty) => { };
+}
+
+check! { i32 | u8 }
+
+fn foo(x: check_ty! { i32 | u8 }) -> check_ty! { i32 | u8 } {
+    x
+}
+fn main() {
+    let x: check_ty! { i32 | u8 } = 42;
+    let _: check_ty! { i32 | u8 } = foo(x);
+}