diff --git a/src/test/run-pass/self-re-assign.rs b/src/test/run-pass/self-re-assign.rs new file mode 100644 index 0000000000000..041c5cf4a640e --- /dev/null +++ b/src/test/run-pass/self-re-assign.rs @@ -0,0 +1,24 @@ +// Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT +// file at the top-level directory of this distribution and at +// http://rust-lang.org/COPYRIGHT. +// +// Licensed under the Apache License, Version 2.0 or the MIT license +// , at your +// option. This file may not be copied, modified, or distributed +// except according to those terms. + +// Ensure assigning an owned or managed variable to itself works. In particular, +// that we do not glue_drop before we glue_take (#3290). + +use std::rc::Rc; + +pub fn main() { + let mut x = ~3; + x = x; + assert!(*x == 3); + + let mut x = Rc::new(3); + x = x; + assert!(*x.borrow() == 3); +}