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/issue-77982.rs | 41 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 src/test/ui/traits/issue-77982.rs

(limited to 'src/test/ui/traits/issue-77982.rs')

diff --git a/src/test/ui/traits/issue-77982.rs b/src/test/ui/traits/issue-77982.rs
new file mode 100644
index 000000000..f5be6cf21
--- /dev/null
+++ b/src/test/ui/traits/issue-77982.rs
@@ -0,0 +1,41 @@
+use std::collections::HashMap;
+
+fn what() {
+    let descr = String::new();
+    let mut opts = HashMap::<String, ()>::new();
+    let opt = String::new();
+
+    opts.get(opt.as_ref()); //~ ERROR type annotations needed
+    //~^ ERROR type annotations needed
+}
+
+fn main() {
+    let ips: Vec<_> = (0..100_000).map(|_| u32::from(0u32.into())).collect();
+    //~^ ERROR type annotations needed
+}
+
+trait Foo<'a, T: ?Sized> {
+    fn foo(&self) -> Box<T> {
+        todo!()
+    }
+}
+
+trait Bar<'a, T: ?Sized> {
+    fn bar(&self) -> Box<T> {
+        todo!()
+    }
+}
+
+impl Foo<'static, u32> for () {}
+impl<'a> Foo<'a, i16> for () {}
+
+impl<'a> Bar<'static, u32> for &'a () {}
+impl<'a> Bar<'a, i16> for &'a () {}
+
+fn foo() {
+    let _ = ().foo(); //~ ERROR type annotations needed
+}
+
+fn bar() {
+    let _ = (&()).bar(); //~ ERROR type annotations needed
+}
-- 
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