1 files changed, 40 insertions, 0 deletions
diff --git a/src/test/ui/underscore-imports/hygiene.rs b/src/test/ui/underscore-imports/hygiene.rs
new file mode 100644
index 000000000..c4db65245
--- /dev/null
+++ b/src/test/ui/underscore-imports/hygiene.rs
@@ -0,0 +1,40 @@
+// Make sure that underscore imports have the same hygiene considerations as other imports.
+
+// check-pass
+
+#![feature(decl_macro)]
+
+mod x {
+    pub use std::ops::Deref as _;
+}
+
+macro glob_import() {
+    pub use crate::x::*;
+}
+
+macro underscore_import() {
+    use std::ops::DerefMut as _;
+}
+
+mod y {
+    crate::glob_import!();
+    crate::underscore_import!();
+}
+
+macro create_module($y:ident) {
+    mod $y {
+        crate::glob_import!();
+        crate::underscore_import!();
+    }
+}
+
+create_module!(z);
+
+fn main() {
+    use crate::y::*;
+    use crate::z::*;
+    glob_import!();
+    underscore_import!();
+    (&()).deref();
+    (&mut ()).deref_mut();
+}