Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 27 insertions, 0 deletions

diff --git a/src/test/ui/unboxed-closures/unboxed-closure-sugar-lifetime-elision.rs b/src/test/ui/unboxed-closures/unboxed-closure-sugar-lifetime-elision.rs
new file mode 100644
index 000000000..d11d663f1
--- /dev/null
+++ b/src/test/ui/unboxed-closures/unboxed-closure-sugar-lifetime-elision.rs
@@ -0,0 +1,27 @@
+// Test that the unboxed closure sugar can be used with an arbitrary
+// struct type and that it is equivalent to the same syntax using
+// angle brackets. This test covers only simple types and in
+// particular doesn't test bound regions.
+
+#![feature(unboxed_closures)]
+#![allow(dead_code)]
+
+use std::marker;
+
+trait Foo<T> {
+    type Output;
+    fn dummy(&self, t: T);
+}
+
+trait Eq<X: ?Sized> { }
+impl<X: ?Sized> Eq<X> for X { }
+fn eq<A: ?Sized,B: ?Sized +Eq<A>>() { }
+
+fn main() {
+    eq::< dyn for<'a> Foo<(&'a isize,), Output=&'a isize>,
+          dyn Foo(&isize) -> &isize                                   >();
+    eq::< dyn for<'a> Foo<(&'a isize,), Output=(&'a isize, &'a isize)>,
+          dyn Foo(&isize) -> (&isize, &isize)                           >();
+
+    let _: dyn Foo(&isize, &usize) -> &usize; //~ ERROR missing lifetime specifier
+}