1 files changed, 55 insertions, 0 deletions
diff --git a/tests/ui/const-generics/min_const_generics/macro.rs b/tests/ui/const-generics/min_const_generics/macro.rs
new file mode 100644
index 000000000..9b63f7698
--- /dev/null
+++ b/tests/ui/const-generics/min_const_generics/macro.rs
@@ -0,0 +1,55 @@
+// run-pass
+struct Example<const N: usize>;
+
+macro_rules! external_macro {
+  () => {{
+    const X: usize = 1337;
+    X
+  }}
+}
+
+trait Marker<const N: usize> {}
+impl<const N: usize> Marker<N> for Example<N> {}
+
+fn make_marker() -> impl Marker<{
+    #[macro_export]
+    macro_rules! const_macro { () => {{ 3 }} } inline!()
+}> {
+  Example::<{ const_macro!() }>
+}
+
+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 }}
+    }
+    gimme_a_const!(run)
+  }>;
+
+  let _ok = Example::<{ external_macro!() }>;
+
+  let _ok: [_; gimme_a_const!(blah)] = [0,0,0];
+  let _ok: [[u8; gimme_a_const!(blah)]; gimme_a_const!(blah)];
+  let _ok: [u8; gimme_a_const!(blah)];
+
+  let _ok: [u8; {
+    #[macro_export]
+    macro_rules! const_two { () => {{ 2 }} }
+    const_two!()
+  }];
+
+  let _ok = [0; {
+    #[macro_export]
+    macro_rules! const_three { () => {{ 3 }} }
+    const_three!()
+  }];
+  let _ok = [0; const_three!()];
+
+  from_marker(make_marker());
+}