The evaluation cache already exists, and it can handle differing parameter environments natively. Fixes #39970. Fixes #42796.
29 lines
886 B
Rust
29 lines
886 B
Rust
// Copyright 2017 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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pub trait Mirror<Smoke> {
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type Image;
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}
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impl<T, Smoke> Mirror<Smoke> for T {
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type Image = T;
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}
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pub fn poison<S>(victim: String) where <String as Mirror<S>>::Image: Copy {
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loop { drop(victim); } //~ ERROR use of moved value
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}
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fn main() {
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let s = "Hello!".to_owned();
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let mut s_copy = s;
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s_copy.push_str("World!");
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"0wned!".to_owned();
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println!("{}", s); //~ ERROR use of moved value
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}
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