From 5363f350887b1e5b5dd21a86f88c8af9d7fea6da Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:18:25 +0200
Subject: Merging upstream version 1.67.1+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../usefulness/const-partial_eq-fallback-ice.rs        | 18 ++++++++++++++++++
 .../usefulness/const-partial_eq-fallback-ice.stderr    |  8 ++++++++
 src/test/ui/pattern/usefulness/uninhabited.rs          |  2 +-
 3 files changed, 27 insertions(+), 1 deletion(-)
 create mode 100644 src/test/ui/pattern/usefulness/const-partial_eq-fallback-ice.rs
 create mode 100644 src/test/ui/pattern/usefulness/const-partial_eq-fallback-ice.stderr

(limited to 'src/test/ui/pattern/usefulness')

diff --git a/src/test/ui/pattern/usefulness/const-partial_eq-fallback-ice.rs b/src/test/ui/pattern/usefulness/const-partial_eq-fallback-ice.rs
new file mode 100644
index 000000000..02599d7c0
--- /dev/null
+++ b/src/test/ui/pattern/usefulness/const-partial_eq-fallback-ice.rs
@@ -0,0 +1,18 @@
+#![allow(warnings)]
+
+struct MyType;
+
+impl PartialEq<usize> for MyType {
+    fn eq(&self, y: &usize) -> bool {
+        true
+    }
+}
+
+const CONSTANT: &&MyType = &&MyType;
+
+fn main() {
+    if let CONSTANT = &&MyType {
+        //~^ ERROR must be annotated with `#[derive(PartialEq, Eq)]`
+        println!("did match!");
+    }
+}
diff --git a/src/test/ui/pattern/usefulness/const-partial_eq-fallback-ice.stderr b/src/test/ui/pattern/usefulness/const-partial_eq-fallback-ice.stderr
new file mode 100644
index 000000000..358421cd6
--- /dev/null
+++ b/src/test/ui/pattern/usefulness/const-partial_eq-fallback-ice.stderr
@@ -0,0 +1,8 @@
+error: to use a constant of type `MyType` in a pattern, `MyType` must be annotated with `#[derive(PartialEq, Eq)]`
+  --> $DIR/const-partial_eq-fallback-ice.rs:14:12
+   |
+LL |     if let CONSTANT = &&MyType {
+   |            ^^^^^^^^
+
+error: aborting due to previous error
+
diff --git a/src/test/ui/pattern/usefulness/uninhabited.rs b/src/test/ui/pattern/usefulness/uninhabited.rs
index 77cd0f400..5622808d4 100644
--- a/src/test/ui/pattern/usefulness/uninhabited.rs
+++ b/src/test/ui/pattern/usefulness/uninhabited.rs
@@ -2,7 +2,7 @@
 // aux-build:empty.rs
 //
 // This tests plays with matching and uninhabited types. This also serves as a test for the
-// `tcx.is_ty_uninhabited_from()` function.
+// `Ty::is_inhabited_from` function.
 #![feature(never_type)]
 #![feature(never_type_fallback)]
 #![feature(exhaustive_patterns)]
-- 
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