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, 28 insertions, 0 deletions

diff --git a/src/test/ui/nll/ty-outlives/ty-param-implied-bounds.rs b/src/test/ui/nll/ty-outlives/ty-param-implied-bounds.rs
new file mode 100644
index 000000000..9042844e8
--- /dev/null
+++ b/src/test/ui/nll/ty-outlives/ty-param-implied-bounds.rs
@@ -0,0 +1,28 @@
+// compile-flags:-Zverbose
+// check-pass
+
+// Test that we assume that universal types like `T` outlive the
+// function body.
+
+use std::cell::Cell;
+
+fn twice<F, T>(value: T, mut f: F)
+where
+    F: FnMut(Cell<&T>),
+{
+    f(Cell::new(&value));
+    f(Cell::new(&value));
+}
+
+fn generic<T>(value: T) {
+    // No error here:
+    twice(value, |r| invoke(r));
+}
+
+fn invoke<'a, T>(x: Cell<&'a T>)
+where
+    T: 'a,
+{
+}
+
+fn main() {}