48 lines
1.0 KiB
Rust
48 lines
1.0 KiB
Rust
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#[feature(managed_boxes)];
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// A test case for #2548.
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use std::cell::Cell;
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struct foo {
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x: @Cell<int>,
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}
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#[unsafe_destructor]
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impl Drop for foo {
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fn drop(&mut self) {
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unsafe {
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println("Goodbye, World!");
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self.x.set(self.x.get() + 1);
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}
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}
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}
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fn foo(x: @Cell<int>) -> foo {
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foo { x: x }
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}
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fn main() {
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let x = @Cell::new(0);
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{
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let mut res = foo(x);
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let mut v = ~[];
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v = ~[(res)] + v; //~ failed to find an implementation of trait
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assert_eq!(v.len(), 2);
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}
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assert_eq!(x.get(), 1);
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}
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