27 lines
790 B
Rust
27 lines
790 B
Rust
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
|
|
// file at the top-level directory of this distribution and at
|
|
// http://rust-lang.org/COPYRIGHT.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
|
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
|
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
|
// option. This file may not be copied, modified, or distributed
|
|
// except according to those terms.
|
|
|
|
// xfail-test
|
|
type IMap<K: Copy, V: Copy> = ~[(K, V)];
|
|
|
|
trait ImmutableMap<K: Copy, V: Copy>
|
|
{
|
|
pure fn contains_key(key: K) -> bool;
|
|
}
|
|
|
|
impl<K: Copy, V: Copy> IMap<K, V> : ImmutableMap<K, V>
|
|
{
|
|
pure fn contains_key(key: K) -> bool
|
|
{
|
|
vec::find(self, |e| {e.first() == key}).is_some()
|
|
}
|
|
}
|
|
|
|
fn main() {} |