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/nll/ty-outlives/ty-param-fn-body.rs b/src/test/ui/nll/ty-outlives/ty-param-fn-body.rs
new file mode 100644
index 000000000..98239f416
--- /dev/null
+++ b/src/test/ui/nll/ty-outlives/ty-param-fn-body.rs
@@ -0,0 +1,27 @@
+// Test that we assume that universal types like `T` outlive the
+// function body.
+
+#![allow(warnings)]
+
+use std::cell::Cell;
+
+// No errors here, because `'a` is local to the body.
+fn region_within_body<T>(t: T) {
+    let some_int = 22;
+    let cell = Cell::new(&some_int);
+    outlives(cell, t)
+}
+
+// Error here, because T: 'a is not satisfied.
+fn region_static<'a, T>(cell: Cell<&'a usize>, t: T) {
+    outlives(cell, t)
+    //~^ ERROR the parameter type `T` may not live long enough
+}
+
+fn outlives<'a, T>(x: Cell<&'a usize>, y: T)
+where
+    T: 'a,
+{
+}
+
+fn main() {}