51 lines
1.4 KiB
Rust
51 lines
1.4 KiB
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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pub struct Entry<A,B> {
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key: A,
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value: B
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}
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pub struct alist<A,B> {
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eq_fn: @fn(A,A) -> bool,
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data: @mut ~[Entry<A,B>]
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}
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pub fn alist_add<A:'static,B:'static>(lst: &alist<A,B>, k: A, v: B) {
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lst.data.push(Entry{key:k, value:v});
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}
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pub fn alist_get<A:Clone + 'static,
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B:Clone + 'static>(
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lst: &alist<A,B>,
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k: A)
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-> B {
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let eq_fn = lst.eq_fn;
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for lst.data.iter().advance |entry| {
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if eq_fn(entry.key.clone(), k.clone()) {
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return entry.value.clone();
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}
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}
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fail!();
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}
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#[inline]
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pub fn new_int_alist<B:'static>() -> alist<int, B> {
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fn eq_int(a: int, b: int) -> bool { a == b }
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return alist {eq_fn: eq_int, data: @mut ~[]};
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}
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#[inline]
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pub fn new_int_alist_2<B:'static>() -> alist<int, B> {
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#[inline]
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fn eq_int(a: int, b: int) -> bool { a == b }
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return alist {eq_fn: eq_int, data: @mut ~[]};
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}
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