blob: e61fb49add5b1e7aa5f53082113d483488178d3c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
// 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.
#![crate_name="static_methods_crate"]
#![crate_type = "lib"]
pub trait read {
fn readMaybe(s: String) -> Option<Self>;
}
impl read for isize {
fn readMaybe(s: String) -> Option<isize> {
s.parse().ok()
}
}
impl read for bool {
fn readMaybe(s: String) -> Option<bool> {
match &*s {
"true" => Some(true),
"false" => Some(false),
_ => None
}
}
}
pub fn read<T:read>(s: String) -> T {
match read::readMaybe(s) {
Some(x) => x,
_ => panic!("read panicked!")
}
}
|
