From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:02:58 +0200 Subject: Adding upstream version 1.64.0+dfsg1. Signed-off-by: Daniel Baumann --- src/test/ui/issues/issue-32008.rs | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 src/test/ui/issues/issue-32008.rs (limited to 'src/test/ui/issues/issue-32008.rs') diff --git a/src/test/ui/issues/issue-32008.rs b/src/test/ui/issues/issue-32008.rs new file mode 100644 index 000000000..6c2e20679 --- /dev/null +++ b/src/test/ui/issues/issue-32008.rs @@ -0,0 +1,28 @@ +// run-pass +#![allow(dead_code)] +#![allow(unused_variables)] +// Tests that binary operators allow subtyping on both the LHS and RHS, +// and as such do not introduce unnecessarily strict lifetime constraints. + +use std::ops::Add; + +struct Foo; + +impl<'a> Add<&'a Foo> for &'a Foo { + type Output = (); + fn add(self, rhs: &'a Foo) {} +} + +fn try_to_add(input: &Foo) { + let local = Foo; + + // Manual reborrow worked even with invariant trait search. + &*input + &local; + + // Direct use of the reference on the LHS requires additional + // subtyping before searching (invariantly) for `LHS: Add`. + input + &local; +} + +fn main() { +} -- cgit v1.2.3