36 lines
962 B
Rust
36 lines
962 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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trait Deserializer {
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fn read_int() -> int;
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}
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trait Deserializable<D:Deserializer> {
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static fn deserialize(d: &D) -> Self;
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}
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impl<D:Deserializer> Deserializable<D> for int {
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static fn deserialize(d: &D) -> int {
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return d.read_int();
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}
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}
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struct FromThinAir { dummy: () }
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impl Deserializer for FromThinAir {
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fn read_int() -> int { 22 }
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}
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pub fn main() {
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let d = FromThinAir { dummy: () };
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let i: int = Deserializable::deserialize(&d);
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assert i == 22;
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}
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