From 218caa410aa38c29984be31a5229b9fa717560ee Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:19:13 +0200 Subject: Merging upstream version 1.68.2+dfsg1. Signed-off-by: Daniel Baumann --- tests/ui/impl-trait/auto-trait-leak.rs | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 tests/ui/impl-trait/auto-trait-leak.rs (limited to 'tests/ui/impl-trait/auto-trait-leak.rs') diff --git a/tests/ui/impl-trait/auto-trait-leak.rs b/tests/ui/impl-trait/auto-trait-leak.rs new file mode 100644 index 000000000..c2fbbf94f --- /dev/null +++ b/tests/ui/impl-trait/auto-trait-leak.rs @@ -0,0 +1,23 @@ +use std::cell::Cell; +use std::rc::Rc; + +fn send(_: T) {} + +fn main() { +} + +// Cycles should work as the deferred obligations are +// independently resolved and only require the concrete +// return type, which can't depend on the obligation. +fn cycle1() -> impl Clone { + //~^ ERROR cycle detected + send(cycle2().clone()); + + Rc::new(Cell::new(5)) +} + +fn cycle2() -> impl Clone { + send(cycle1().clone()); + + Rc::new(String::from("foo")) +} -- cgit v1.2.3