rust/src/test/run-pass/auto-encode.rs

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// xfail-fast
// 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.
#[forbid(deprecated_pattern)];
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extern mod std;
// These tests used to be separate files, but I wanted to refactor all
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// the common code.
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use EBReader = std::ebml::reader;
use EBWriter = std::ebml::writer;
use core::cmp::Eq;
use core::io::Writer;
use std::ebml;
use std::serialize::{Decodable, Encodable};
use std::time;
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fn test_ebml<A:
Eq +
Encodable<EBWriter::Encoder> +
Decodable<EBReader::Decoder>
>(a1: &A) {
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let bytes = do io::with_bytes_writer |wr| {
let ebml_w = &EBWriter::Encoder(wr);
a1.encode(ebml_w)
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};
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let d = EBReader::Doc(@bytes);
let a2: A = Decodable::decode(&EBReader::Decoder(d));
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assert!(*a1 == a2);
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}
#[deriving(Decodable, Encodable)]
enum Expr {
Val(uint),
Plus(@Expr, @Expr),
Minus(@Expr, @Expr)
}
impl cmp::Eq for Expr {
fn eq(&self, other: &Expr) -> bool {
match *self {
Val(e0a) => {
match *other {
Val(e0b) => e0a == e0b,
_ => false
}
}
Plus(e0a, e1a) => {
match *other {
Plus(e0b, e1b) => e0a == e0b && e1a == e1b,
_ => false
}
}
Minus(e0a, e1a) => {
match *other {
Minus(e0b, e1b) => e0a == e0b && e1a == e1b,
_ => false
}
}
}
}
fn ne(&self, other: &Expr) -> bool { !(*self).eq(other) }
}
impl cmp::Eq for Point {
fn eq(&self, other: &Point) -> bool {
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self.x == other.x && self.y == other.y
}
fn ne(&self, other: &Point) -> bool { !(*self).eq(other) }
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}
impl<T:cmp::Eq> cmp::Eq for Quark<T> {
fn eq(&self, other: &Quark<T>) -> bool {
match *self {
Top(ref q) => {
match *other {
Top(ref r) => q == r,
Bottom(_) => false
}
},
Bottom(ref q) => {
match *other {
Top(_) => false,
Bottom(ref r) => q == r
}
},
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}
}
fn ne(&self, other: &Quark<T>) -> bool { !(*self).eq(other) }
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}
impl cmp::Eq for CLike {
fn eq(&self, other: &CLike) -> bool {
(*self) as int == *other as int
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}
fn ne(&self, other: &CLike) -> bool { !self.eq(other) }
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}
#[deriving(Decodable, Encodable, Eq)]
struct Spanned<T> {
lo: uint,
hi: uint,
node: T,
}
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#[deriving(Decodable, Encodable)]
struct SomeStruct { v: ~[uint] }
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#[deriving(Decodable, Encodable)]
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struct Point {x: uint, y: uint}
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#[deriving(Decodable, Encodable)]
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enum Quark<T> {
Top(T),
Bottom(T)
}
#[deriving(Decodable, Encodable)]
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enum CLike { A, B, C }
pub fn main() {
let a = &Plus(@Minus(@Val(3u), @Val(10u)), @Plus(@Val(22u), @Val(5u)));
test_ebml(a);
let a = &Spanned {lo: 0u, hi: 5u, node: 22u};
test_ebml(a);
let a = &Point {x: 3u, y: 5u};
test_ebml(a);
let a = &@[1u, 2u, 3u];
test_ebml(a);
let a = &Top(22u);
test_ebml(a);
let a = &Bottom(222u);
test_ebml(a);
let a = &A;
test_ebml(a);
let a = &B;
test_ebml(a);
let a = &time::now();
test_ebml(a);
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}