1 files changed, 58 insertions, 0 deletions
diff --git a/tests/ui/range/issue-54505-no-std.rs b/tests/ui/range/issue-54505-no-std.rs
new file mode 100644
index 000000000..9f378b483
--- /dev/null
+++ b/tests/ui/range/issue-54505-no-std.rs
@@ -0,0 +1,58 @@
+// Regression test for #54505 - range borrowing suggestion had
+// incorrect syntax (missing parentheses).
+
+// This test doesn't use std
+// (so all Ranges resolve to core::ops::Range...)
+
+#![no_std]
+#![feature(lang_items)]
+
+use core::ops::RangeBounds;
+
+#[cfg(any(not(target_arch = "wasm32"), target_os = "emscripten"))]
+#[lang = "eh_personality"]
+extern "C" fn eh_personality() {}
+#[cfg(target_os = "emscripten")]
+#[lang = "eh_catch_typeinfo"]
+static EH_CATCH_TYPEINFO: u8 = 0;
+
+#[panic_handler]
+fn panic_handler() {}
+//~^ ERROR return type should be `!`
+//~| ERROR function should have one argument
+
+// take a reference to any built-in range
+fn take_range(_r: &impl RangeBounds<i8>) {}
+
+
+fn main() {
+    take_range(0..1);
+    //~^ ERROR mismatched types [E0308]
+    //~| HELP consider borrowing here
+    //~| SUGGESTION &(0..1)
+
+    take_range(1..);
+    //~^ ERROR mismatched types [E0308]
+    //~| HELP consider borrowing here
+    //~| SUGGESTION &(1..)
+
+    take_range(..);
+    //~^ ERROR mismatched types [E0308]
+    //~| HELP consider borrowing here
+    //~| SUGGESTION &(..)
+
+    take_range(0..=1);
+    //~^ ERROR mismatched types [E0308]
+    //~| HELP consider borrowing here
+    //~| SUGGESTION &(0..=1)
+
+    take_range(..5);
+    //~^ ERROR mismatched types [E0308]
+    //~| HELP consider borrowing here
+    //~| SUGGESTION &(..5)
+
+    take_range(..=42);
+    //~^ ERROR mismatched types [E0308]
+    //~| HELP consider borrowing here
+    //~| SUGGESTION &(..=42)
+}