From a4b0e0f95f96abe8f6b4750594f7af38372799d1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Matthias=20Kr=C3=BCger?= <matthias.krueger@famsik.de>
Date: Fri, 22 Mar 2024 18:00:38 +0100
Subject: [PATCH] add test for #64784  Declarative macros can create infinite
 glob import cycles

Fixes #64784
---
 ...acro-infinite-global-import-cycle-ice-64784.rs | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 tests/ui/privacy/decl-macro-infinite-global-import-cycle-ice-64784.rs

diff --git a/tests/ui/privacy/decl-macro-infinite-global-import-cycle-ice-64784.rs b/tests/ui/privacy/decl-macro-infinite-global-import-cycle-ice-64784.rs
new file mode 100644
index 0000000000000..da7c5442d36da
--- /dev/null
+++ b/tests/ui/privacy/decl-macro-infinite-global-import-cycle-ice-64784.rs
@@ -0,0 +1,15 @@
+// ICE #64784  already borrowed: BorrowMutError
+//@ check-pass
+#![feature(decl_macro)]
+
+pub macro m($i:ident, $j:ident) {
+    mod $i {
+        pub use crate::$j::*;
+        pub struct A;
+    }
+}
+
+m!(x, y);
+m!(y, x);
+
+fn main() {}