35 lines
904 B
Rust
35 lines
904 B
Rust
// Copyright 2012-2014 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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fn example_err(prog: &str, arg: &str) {
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println!("{}: {}", prog, arg)
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}
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fn exit<F>(print: F, prog: &str, arg: &str) where F: FnOnce(&str, &str) {
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print(prog, arg);
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}
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struct X<F> where F: FnOnce(&str, &str) {
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err: F,
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}
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impl<F> X<F> where F: FnOnce(&str, &str) {
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pub fn boom(self) {
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exit(self.err, "prog", "arg");
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}
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}
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pub fn main(){
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let val = X {
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err: example_err,
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};
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val.boom();
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}
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