38 lines
896 B
Rust
38 lines
896 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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#[derive(Copy)]
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struct cat {
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meow: extern "Rust" fn(),
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}
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fn meow() {
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println!("meow")
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}
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fn cat() -> cat {
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cat {
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meow: meow,
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}
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}
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#[derive(Copy)]
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struct KittyInfo {kitty: cat}
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// Code compiles and runs successfully if we add a + before the first arg
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fn nyan(kitty: cat, _kitty_info: KittyInfo) {
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(kitty.meow)();
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}
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pub fn main() {
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let kitty = cat();
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nyan(kitty, KittyInfo {kitty: kitty});
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}
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