46 lines
932 B
Rust
46 lines
932 B
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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// pretty-expanded FIXME #23616
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#![allow(unknown_features)]
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#![feature(box_syntax)]
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trait clam<A> {
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fn chowder(&self, y: A);
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}
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#[derive(Copy, Clone)]
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struct foo<A> {
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x: A,
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}
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impl<A> clam<A> for foo<A> {
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fn chowder(&self, _y: A) {
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}
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}
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fn foo<A>(b: A) -> foo<A> {
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foo {
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x: b
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}
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}
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fn f<A>(x: Box<clam<A>>, a: A) {
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x.chowder(a);
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}
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pub fn main() {
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let c = foo(42);
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let d: Box<clam<isize>> = box c as Box<clam<isize>>;
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f(d, c.x);
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}
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