From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:02:58 +0200
Subject: Adding upstream version 1.64.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../ui/coercion/coerce-overloaded-autoderef.rs     | 68 ++++++++++++++++++++++
 1 file changed, 68 insertions(+)
 create mode 100644 src/test/ui/coercion/coerce-overloaded-autoderef.rs

(limited to 'src/test/ui/coercion/coerce-overloaded-autoderef.rs')

diff --git a/src/test/ui/coercion/coerce-overloaded-autoderef.rs b/src/test/ui/coercion/coerce-overloaded-autoderef.rs
new file mode 100644
index 000000000..d5484607c
--- /dev/null
+++ b/src/test/ui/coercion/coerce-overloaded-autoderef.rs
@@ -0,0 +1,68 @@
+// run-pass
+#![allow(unused_braces)]
+#![allow(dead_code)]
+// pretty-expanded FIXME #23616
+
+use std::rc::Rc;
+
+// Examples from the "deref coercions" RFC, at rust-lang/rfcs#241.
+
+fn use_ref<T>(_: &T) {}
+fn use_mut<T>(_: &mut T) {}
+
+fn use_rc<T>(t: Rc<T>) {
+    use_ref(&*t);  // what you have to write today
+    use_ref(&t);   // what you'd be able to write
+    use_ref(&&&&&&t);
+    use_ref(&mut &&&&&t);
+    use_ref(&&&mut &&&t);
+}
+
+fn use_mut_box<T>(mut t: &mut Box<T>) {
+    use_mut(&mut *t); // what you have to write today
+    use_mut(t);       // what you'd be able to write
+    use_mut(&mut &mut &mut t);
+
+    use_ref(&*t);      // what you have to write today
+    use_ref(t);        // what you'd be able to write
+    use_ref(&&&&&&t);
+    use_ref(&mut &&&&&t);
+    use_ref(&&&mut &&&t);
+}
+
+fn use_nested<T>(t: &Box<T>) {
+    use_ref(&**t);  // what you have to write today
+    use_ref(t);     // what you'd be able to write (note: recursive deref)
+    use_ref(&&&&&&t);
+    use_ref(&mut &&&&&t);
+    use_ref(&&&mut &&&t);
+}
+
+fn use_slice(_: &[u8]) {}
+fn use_slice_mut(_: &mut [u8]) {}
+
+fn use_vec(mut v: Vec<u8>) {
+    use_slice_mut(&mut v[..]); // what you have to write today
+    use_slice_mut(&mut v);     // what you'd be able to write
+    use_slice_mut(&mut &mut &mut v);
+
+    use_slice(&v[..]);  // what you have to write today
+    use_slice(&v);      // what you'd be able to write
+    use_slice(&&&&&&v);
+    use_slice(&mut &&&&&v);
+    use_slice(&&&mut &&&v);
+}
+
+fn use_vec_ref(v: &Vec<u8>) {
+    use_slice(&v[..]);  // what you have to write today
+    use_slice(v);       // what you'd be able to write
+    use_slice(&&&&&&v);
+    use_slice(&mut &&&&&v);
+    use_slice(&&&mut &&&v);
+}
+
+fn use_op_rhs(s: &mut String) {
+    *s += {&String::from(" ")};
+}
+
+pub fn main() {}
-- 
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