40 lines
940 B
Rust
40 lines
940 B
Rust
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// Copyright 2015 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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// Test a very simple custom DST coercion.
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#![feature(core)]
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use std::rc::Rc;
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trait Baz {
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fn get(&self) -> i32;
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}
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impl Baz for i32 {
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fn get(&self) -> i32 {
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*self
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}
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}
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fn main() {
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let a: Rc<[i32; 3]> = Rc::new([1, 2, 3]);
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let b: Rc<[i32]> = a;
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assert_eq!(b[0], 1);
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assert_eq!(b[1], 2);
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assert_eq!(b[2], 3);
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let a: Rc<i32> = Rc::new(42);
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let b: Rc<Baz> = a.clone();
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assert_eq!(b.get(), 42);
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let _c = b.clone();
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}
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