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/binding/func-arg-ref-pattern.rs | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 src/test/ui/binding/func-arg-ref-pattern.rs (limited to 'src/test/ui/binding/func-arg-ref-pattern.rs') diff --git a/src/test/ui/binding/func-arg-ref-pattern.rs b/src/test/ui/binding/func-arg-ref-pattern.rs new file mode 100644 index 000000000..2d75c1214 --- /dev/null +++ b/src/test/ui/binding/func-arg-ref-pattern.rs @@ -0,0 +1,26 @@ +// run-pass + +// Test argument patterns where we create refs to the inside of +// boxes. Make sure that we don't free the box as we match the +// pattern. + +#![feature(box_patterns)] + +fn getaddr(box ref x: Box) -> *const usize { + let addr: *const usize = &*x; + addr +} + +fn checkval(box ref x: Box) -> usize { + *x +} + +pub fn main() { + let obj: Box<_> = Box::new(1); + let objptr: *const usize = &*obj; + let xptr = getaddr(obj); + assert_eq!(objptr, xptr); + + let obj = Box::new(22); + assert_eq!(checkval(obj), 22); +} -- cgit v1.2.3