39 lines
985 B
Rust
39 lines
985 B
Rust
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// Copyright 2014 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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use std::mem;
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static mut DROP_COUNT: uint = 0;
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struct Fragment;
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impl Drop for Fragment {
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fn drop(&mut self) {
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unsafe {
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DROP_COUNT += 1;
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}
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}
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}
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fn main() {
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{
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let mut fragments = vec![Fragment, Fragment, Fragment];
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let _new_fragments: Vec<Fragment> = mem::replace(&mut fragments, vec![])
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.move_iter()
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.skip_while(|_fragment| {
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true
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}).collect();
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}
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unsafe {
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assert_eq!(DROP_COUNT, 3);
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}
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}
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