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| extern crate ser = "serialize"; | |
| use serialize = self::ser; // necessary for deriving(Encodable) | |
| use ser::{Encodable, Encoder}; | |
| use ser::json; | |
| use ser::ebml::writer; | |
| use std::io::MemWriter; | |
| use std::str::from_utf8_owned; | |
| #[deriving(Encodable)] | |
| struct Foo { | |
| baz: bool, | |
| } | |
| #[deriving(Encodable)] | |
| struct Bar { | |
| froboz: uint | |
| } | |
| enum WireProtocol { | |
| JSON, | |
| EBML, | |
| // ... | |
| } | |
| fn encode_json<'a, T: Encodable<json::Encoder<'a>, std::io::IoError>>(val: &T, wr: &'a mut MemWriter) { | |
| let mut encoder = json::Encoder::new(wr); | |
| val.encode(&mut encoder); | |
| } | |
| fn encode_ebml<'a, T: Encodable<writer::Encoder<'a, MemWriter>, std::io::IoError>>(val: &T, wr: &'a mut MemWriter) { | |
| let mut encoder = writer::Encoder(wr); | |
| val.encode(&mut encoder); | |
| } | |
| pub fn main() { | |
| let target = Foo { baz: false }; | |
| let mut wr = MemWriter::new(); | |
| let proto = JSON; | |
| match proto { | |
| JSON => encode_json(&target, &mut wr), | |
| EBML => encode_ebml(&target, &mut wr) | |
| } | |
| } |
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