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, 32 insertions, 0 deletions

diff --git a/src/test/ui/overloaded/overloaded-calls-param-vtables.rs b/src/test/ui/overloaded/overloaded-calls-param-vtables.rs
new file mode 100644
index 000000000..fde1ad20f
--- /dev/null
+++ b/src/test/ui/overloaded/overloaded-calls-param-vtables.rs
@@ -0,0 +1,32 @@
+// run-pass
+// Tests that nested vtables work with overloaded calls.
+
+// pretty-expanded FIXME #23616
+
+#![feature(unboxed_closures, fn_traits)]
+
+use std::marker::PhantomData;
+use std::ops::Fn;
+use std::ops::Add;
+
+struct G<A>(PhantomData<A>);
+
+impl<'a, A: Add<i32, Output=i32>> Fn<(A,)> for G<A> {
+    extern "rust-call" fn call(&self, (arg,): (A,)) -> i32 {
+        arg.add(1)
+    }
+}
+
+impl<'a, A: Add<i32, Output=i32>> FnMut<(A,)> for G<A> {
+    extern "rust-call" fn call_mut(&mut self, args: (A,)) -> i32 { self.call(args) }
+}
+
+impl<'a, A: Add<i32, Output=i32>> FnOnce<(A,)> for G<A> {
+    type Output = i32;
+    extern "rust-call" fn call_once(self, args: (A,)) -> i32 { self.call(args) }
+}
+
+fn main() {
+    // ICE trigger
+    (G(PhantomData))(1);
+}