From 4e334d6141d239f97347bd2a93e2499414ecbc47 Mon Sep 17 00:00:00 2001 From: "Felix S. Klock II" Date: Wed, 25 Feb 2015 23:45:41 +0100 Subject: [PATCH] Regression test for #22536. --- .../run-pass/issue-22536-copy-mustnt-zero.rs | 34 +++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 src/test/run-pass/issue-22536-copy-mustnt-zero.rs diff --git a/src/test/run-pass/issue-22536-copy-mustnt-zero.rs b/src/test/run-pass/issue-22536-copy-mustnt-zero.rs new file mode 100644 index 000000000000..b3492180a582 --- /dev/null +++ b/src/test/run-pass/issue-22536-copy-mustnt-zero.rs @@ -0,0 +1,34 @@ +// Copyright 2015 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. + +// Regression test for Issue #22536: If a type implements Copy, then +// moving it must not zero the original memory. + +trait Resources { + type Buffer: Copy; + fn foo(&self) {} +} + +struct BufferHandle { + raw: ::Buffer, +} +impl Copy for BufferHandle {} + +enum Res {} +impl Resources for Res { + type Buffer = u32; +} +impl Copy for Res { } + +fn main() { + let b: BufferHandle = BufferHandle { raw: 1 }; + let c = b; + assert_eq!(c.raw, b.raw) +}