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| -rw-r--r-- | src/test/run-pass/issue-17734.rs | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/test/run-pass/issue-17734.rs b/src/test/run-pass/issue-17734.rs new file mode 100644 index 00000000000..f68ab01ea9b --- /dev/null +++ b/src/test/run-pass/issue-17734.rs @@ -0,0 +1,23 @@ +// Copyright 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 <LICENSE-APACHE or +// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license +// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your +// option. This file may not be copied, modified, or distributed +// except according to those terms. + +// Test that generating drop glue for Box<str> doesn't ICE + +fn f(s: Box<str>) -> Box<str> { + s +} + +fn main() { + // There is currently no safe way to construct a `Box<str>`, so improvise + let box_arr: Box<[u8]> = box ['h' as u8, 'e' as u8, 'l' as u8, 'l' as u8, 'o' as u8]; + let box_str: Box<str> = unsafe { std::mem::transmute(box_arr) }; + assert_eq!(box_str.as_slice(), "hello"); + f(box_str); +} |