35 lines
796 B
Rust
35 lines
796 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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use std::hashmap::HashSet;
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struct Foo {
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n: HashSet<int>,
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}
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pub impl Foo {
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fn foo(&mut self, fun: &fn(&int)) {
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for self.n.each |f| {
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fun(f);
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}
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}
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}
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fn bar(f: &mut Foo) {
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do f.foo |a| {
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f.n.insert(*a); //~ ERROR cannot borrow
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}
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}
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fn main() {
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let mut f = Foo { n: HashSet::new() };
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bar(&mut f);
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}
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