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/resource-assign-is-not-copy.rs | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 tests/ui/resource-assign-is-not-copy.rs (limited to 'tests/ui/resource-assign-is-not-copy.rs') diff --git a/tests/ui/resource-assign-is-not-copy.rs b/tests/ui/resource-assign-is-not-copy.rs new file mode 100644 index 000000000..c1de139a9 --- /dev/null +++ b/tests/ui/resource-assign-is-not-copy.rs @@ -0,0 +1,33 @@ +// run-pass + +#![allow(non_camel_case_types)] +use std::cell::Cell; + +#[derive(Debug)] +struct r<'a> { + i: &'a Cell, +} + +impl<'a> Drop for r<'a> { + fn drop(&mut self) { + self.i.set(self.i.get() + 1); + } +} + +fn r(i: &Cell) -> r { + r { + i: i + } +} + +pub fn main() { + let i = &Cell::new(0); + // Even though these look like copies, they are guaranteed not to be + { + let a = r(i); + let b = (a, 10); + let (c, _d) = b; + println!("{:?}", c); + } + assert_eq!(i.get(), 1); +} -- cgit v1.2.3