1 files changed, 42 insertions, 0 deletions
diff --git a/src/test/ui/const-generics/min_const_generics/macro-fail.rs b/src/test/ui/const-generics/min_const_generics/macro-fail.rs
new file mode 100644
index 000000000..f83518fc9
--- /dev/null
+++ b/src/test/ui/const-generics/min_const_generics/macro-fail.rs
@@ -0,0 +1,42 @@
+struct Example<const N: usize>;
+
+macro_rules! external_macro {
+  () => {{
+    //~^ ERROR expected type
+    const X: usize = 1337;
+    X
+  }}
+}
+
+trait Marker<const N: usize> {}
+impl<const N: usize> Marker<N> for Example<N> {}
+
+fn make_marker() -> impl Marker<gimme_a_const!(marker)> {
+  //~^ ERROR: type provided when a constant was expected
+  Example::<gimme_a_const!(marker)>
+  //~^ ERROR: type provided when a constant was expected
+}
+
+fn from_marker(_: impl Marker<{
+    #[macro_export]
+    macro_rules! inline { () => {{ 3 }} }; inline!()
+}>) {}
+
+fn main() {
+  let _ok = Example::<{
+    #[macro_export]
+    macro_rules! gimme_a_const {
+      ($rusty: ident) => {{ let $rusty = 3; *&$rusty }}
+      //~^ ERROR expected type
+      //~| ERROR expected type
+    };
+    gimme_a_const!(run)
+  }>;
+
+  let _fail = Example::<external_macro!()>;
+  //~^ ERROR: type provided when a constant was expected
+
+  let _fail = Example::<gimme_a_const!()>;
+  //~^ ERROR: type provided when a constant was expected
+  //~| ERROR unexpected end of macro invocation
+}