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// 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.
#[feature(managed_boxes)];
use std::cell::RefCell;
pub struct Entry<A,B> {
key: A,
value: B
}
pub struct alist<A,B> {
eq_fn: extern "Rust" fn(A,A) -> bool,
data: @RefCell<Vec<Entry<A,B>> >,
}
pub fn alist_add<A:'static,B:'static>(lst: &alist<A,B>, k: A, v: B) {
let mut data = lst.data.borrow_mut();
(*data).push(Entry{key:k, value:v});
}
pub fn alist_get<A:Clone + 'static,
B:Clone + 'static>(
lst: &alist<A,B>,
k: A)
-> B {
let eq_fn = lst.eq_fn;
let data = lst.data.borrow();
for entry in (*data).iter() {
if eq_fn(entry.key.clone(), k.clone()) {
return entry.value.clone();
}
}
fail!();
}
#[inline]
pub fn new_int_alist<B:'static>() -> alist<int, B> {
fn eq_int(a: int, b: int) -> bool { a == b }
return alist {
eq_fn: eq_int,
data: @RefCell::new(Vec::new()),
};
}
#[inline]
pub fn new_int_alist_2<B:'static>() -> alist<int, B> {
#[inline]
fn eq_int(a: int, b: int) -> bool { a == b }
return alist {
eq_fn: eq_int,
data: @RefCell::new(Vec::new()),
};
}
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