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>
---
 src/test/ui/traits/to-str.rs | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 src/test/ui/traits/to-str.rs

(limited to 'src/test/ui/traits/to-str.rs')

diff --git a/src/test/ui/traits/to-str.rs b/src/test/ui/traits/to-str.rs
new file mode 100644
index 000000000..9670edbfa
--- /dev/null
+++ b/src/test/ui/traits/to-str.rs
@@ -0,0 +1,36 @@
+// run-pass
+#![allow(non_camel_case_types)]
+
+
+trait to_str {
+    fn to_string_(&self) -> String;
+}
+
+impl to_str for isize {
+    fn to_string_(&self) -> String { self.to_string() }
+}
+
+impl<T:to_str> to_str for Vec<T> {
+    fn to_string_(&self) -> String {
+        format!("[{}]",
+                self.iter()
+                    .map(|e| e.to_string_())
+                    .collect::<Vec<String>>()
+                    .join(", "))
+    }
+}
+
+pub fn main() {
+    assert_eq!(1.to_string_(), "1".to_string());
+    assert_eq!((vec![2, 3, 4]).to_string_(), "[2, 3, 4]".to_string());
+
+    fn indirect<T:to_str>(x: T) -> String {
+        format!("{}!", x.to_string_())
+    }
+    assert_eq!(indirect(vec![10, 20]), "[10, 20]!".to_string());
+
+    fn indirect2<T:to_str>(x: T) -> String {
+        indirect(x)
+    }
+    assert_eq!(indirect2(vec![1]), "[1]!".to_string());
+}
-- 
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