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be34aefe78
serde/bench_vec.rs
Erick Tryzelaar 22ff47f93b Simplify the Deserializable typarams
2014-06-22 16:51:50 -04:00

472 lines
16 KiB
Rust
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use std::fmt::Show;
use test::Bencher;
use serialize::{Decoder, Decodable};
use de::{Deserializer, Deserializable};
//////////////////////////////////////////////////////////////////////////////
#[deriving(Show)]
enum Error {
EndOfStream,
SyntaxError,
}
//////////////////////////////////////////////////////////////////////////////
mod decoder {
use std::vec;
use serialize;
use super::{Error, EndOfStream, SyntaxError};
pub struct IntDecoder {
len: uint,
iter: vec::MoveItems<int>,
}
impl IntDecoder {
#[inline]
pub fn new(values: Vec<int>) -> IntDecoder {
IntDecoder {
len: values.len(),
iter: values.move_iter(),
}
}
}
impl serialize::Decoder<Error> for IntDecoder {
// Primitive types:
fn read_nil(&mut self) -> Result<(), Error> { Err(SyntaxError) }
fn read_uint(&mut self) -> Result<uint, Error> { Err(SyntaxError) }
fn read_u64(&mut self) -> Result<u64, Error> { Err(SyntaxError) }
fn read_u32(&mut self) -> Result<u32, Error> { Err(SyntaxError) }
fn read_u16(&mut self) -> Result<u16, Error> { Err(SyntaxError) }
fn read_u8(&mut self) -> Result<u8, Error> { Err(SyntaxError) }
#[inline]
fn read_int(&mut self) -> Result<int, Error> {
match self.iter.next() {
Some(value) => Ok(value),
None => Err(EndOfStream),
}
}
fn read_i64(&mut self) -> Result<i64, Error> { Err(SyntaxError) }
fn read_i32(&mut self) -> Result<i32, Error> { Err(SyntaxError) }
fn read_i16(&mut self) -> Result<i16, Error> { Err(SyntaxError) }
fn read_i8(&mut self) -> Result<i8, Error> { Err(SyntaxError) }
fn read_bool(&mut self) -> Result<bool, Error> { Err(SyntaxError) }
fn read_f64(&mut self) -> Result<f64, Error> { Err(SyntaxError) }
fn read_f32(&mut self) -> Result<f32, Error> { Err(SyntaxError) }
fn read_char(&mut self) -> Result<char, Error> { Err(SyntaxError) }
fn read_str(&mut self) -> Result<String, Error> { Err(SyntaxError) }
// Compound types:
fn read_enum<T>(&mut self, _name: &str, _f: |&mut IntDecoder| -> Result<T, Error>) -> Result<T, Error> { Err(SyntaxError) }
fn read_enum_variant<T>(&mut self,
_names: &[&str],
_f: |&mut IntDecoder, uint| -> Result<T, Error>)
-> Result<T, Error> { Err(SyntaxError) }
fn read_enum_variant_arg<T>(&mut self,
_a_idx: uint,
_f: |&mut IntDecoder| -> Result<T, Error>)
-> Result<T, Error> { Err(SyntaxError) }
fn read_enum_struct_variant<T>(&mut self,
_names: &[&str],
_f: |&mut IntDecoder, uint| -> Result<T, Error>)
-> Result<T, Error> { Err(SyntaxError) }
fn read_enum_struct_variant_field<T>(&mut self,
_f_name: &str,
_f_idx: uint,
_f: |&mut IntDecoder| -> Result<T, Error>)
-> Result<T, Error> { Err(SyntaxError) }
fn read_struct<T>(&mut self, _s_name: &str, _len: uint, _f: |&mut IntDecoder| -> Result<T, Error>)
-> Result<T, Error> { Err(SyntaxError) }
fn read_struct_field<T>(&mut self,
_f_name: &str,
_f_idx: uint,
_f: |&mut IntDecoder| -> Result<T, Error>)
-> Result<T, Error> { Err(SyntaxError) }
fn read_tuple<T>(&mut self, _f: |&mut IntDecoder, uint| -> Result<T, Error>) -> Result<T, Error> { Err(SyntaxError) }
fn read_tuple_arg<T>(&mut self, _a_idx: uint, _f: |&mut IntDecoder| -> Result<T, Error>) -> Result<T, Error> { Err(SyntaxError) }
fn read_tuple_struct<T>(&mut self,
_s_name: &str,
_f: |&mut IntDecoder, uint| -> Result<T, Error>)
-> Result<T, Error> { Err(SyntaxError) }
fn read_tuple_struct_arg<T>(&mut self,
_a_idx: uint,
_f: |&mut IntDecoder| -> Result<T, Error>)
-> Result<T, Error> { Err(SyntaxError) }
// Specialized types:
fn read_option<T>(&mut self, _f: |&mut IntDecoder, bool| -> Result<T, Error>) -> Result<T, Error> { Err(SyntaxError) }
#[inline]
fn read_seq<T>(&mut self, f: |&mut IntDecoder, uint| -> Result<T, Error>) -> Result<T, Error> {
let len = self.len;
f(self, len)
}
#[inline]
fn read_seq_elt<T>(&mut self, _idx: uint, f: |&mut IntDecoder| -> Result<T, Error>) -> Result<T, Error> {
f(self)
}
fn read_map<T>(&mut self, _f: |&mut IntDecoder, uint| -> Result<T, Error>) -> Result<T, Error> { Err(SyntaxError) }
fn read_map_elt_key<T>(&mut self, _idx: uint, _f: |&mut IntDecoder| -> Result<T, Error>) -> Result<T, Error> { Err(SyntaxError) }
fn read_map_elt_val<T>(&mut self, _idx: uint, _f: |&mut IntDecoder| -> Result<T, Error>) -> Result<T, Error> { Err(SyntaxError) }
}
pub struct U8Decoder {
len: uint,
iter: vec::MoveItems<u8>,
}
impl U8Decoder {
#[inline]
pub fn new(values: Vec<u8>) -> U8Decoder {
U8Decoder {
len: values.len(),
iter: values.move_iter(),
}
}
}
impl serialize::Decoder<Error> for U8Decoder {
// Primitive types:
fn read_nil(&mut self) -> Result<(), Error> { Err(SyntaxError) }
fn read_uint(&mut self) -> Result<uint, Error> { Err(SyntaxError) }
fn read_u64(&mut self) -> Result<u64, Error> { Err(SyntaxError) }
fn read_u32(&mut self) -> Result<u32, Error> { Err(SyntaxError) }
fn read_u16(&mut self) -> Result<u16, Error> { Err(SyntaxError) }
#[inline]
fn read_u8(&mut self) -> Result<u8, Error> {
match self.iter.next() {
Some(value) => Ok(value),
None => Err(EndOfStream),
}
}
#[inline]
fn read_int(&mut self) -> Result<int, Error> { Err(SyntaxError) }
fn read_i64(&mut self) -> Result<i64, Error> { Err(SyntaxError) }
fn read_i32(&mut self) -> Result<i32, Error> { Err(SyntaxError) }
fn read_i16(&mut self) -> Result<i16, Error> { Err(SyntaxError) }
fn read_i8(&mut self) -> Result<i8, Error> { Err(SyntaxError) }
fn read_bool(&mut self) -> Result<bool, Error> { Err(SyntaxError) }
fn read_f64(&mut self) -> Result<f64, Error> { Err(SyntaxError) }
fn read_f32(&mut self) -> Result<f32, Error> { Err(SyntaxError) }
fn read_char(&mut self) -> Result<char, Error> { Err(SyntaxError) }
fn read_str(&mut self) -> Result<String, Error> { Err(SyntaxError) }
// Compound types:
fn read_enum<T>(&mut self, _name: &str, _f: |&mut U8Decoder| -> Result<T, Error>) -> Result<T, Error> { Err(SyntaxError) }
fn read_enum_variant<T>(&mut self,
_names: &[&str],
_f: |&mut U8Decoder, uint| -> Result<T, Error>)
-> Result<T, Error> { Err(SyntaxError) }
fn read_enum_variant_arg<T>(&mut self,
_a_idx: uint,
_f: |&mut U8Decoder| -> Result<T, Error>)
-> Result<T, Error> { Err(SyntaxError) }
fn read_enum_struct_variant<T>(&mut self,
_names: &[&str],
_f: |&mut U8Decoder, uint| -> Result<T, Error>)
-> Result<T, Error> { Err(SyntaxError) }
fn read_enum_struct_variant_field<T>(&mut self,
_f_name: &str,
_f_idx: uint,
_f: |&mut U8Decoder| -> Result<T, Error>)
-> Result<T, Error> { Err(SyntaxError) }
fn read_struct<T>(&mut self, _s_name: &str, _len: uint, _f: |&mut U8Decoder| -> Result<T, Error>)
-> Result<T, Error> { Err(SyntaxError) }
fn read_struct_field<T>(&mut self,
_f_name: &str,
_f_idx: uint,
_f: |&mut U8Decoder| -> Result<T, Error>)
-> Result<T, Error> { Err(SyntaxError) }
fn read_tuple<T>(&mut self, _f: |&mut U8Decoder, uint| -> Result<T, Error>) -> Result<T, Error> { Err(SyntaxError) }
fn read_tuple_arg<T>(&mut self, _a_idx: uint, _f: |&mut U8Decoder| -> Result<T, Error>) -> Result<T, Error> { Err(SyntaxError) }
fn read_tuple_struct<T>(&mut self,
_s_name: &str,
_f: |&mut U8Decoder, uint| -> Result<T, Error>)
-> Result<T, Error> { Err(SyntaxError) }
fn read_tuple_struct_arg<T>(&mut self,
_a_idx: uint,
_f: |&mut U8Decoder| -> Result<T, Error>)
-> Result<T, Error> { Err(SyntaxError) }
// Specialized types:
fn read_option<T>(&mut self, _f: |&mut U8Decoder, bool| -> Result<T, Error>) -> Result<T, Error> { Err(SyntaxError) }
#[inline]
fn read_seq<T>(&mut self, f: |&mut U8Decoder, uint| -> Result<T, Error>) -> Result<T, Error> {
let len = self.len;
f(self, len)
}
#[inline]
fn read_seq_elt<T>(&mut self, _idx: uint, f: |&mut U8Decoder| -> Result<T, Error>) -> Result<T, Error> {
f(self)
}
fn read_map<T>(&mut self, _f: |&mut U8Decoder, uint| -> Result<T, Error>) -> Result<T, Error> { Err(SyntaxError) }
fn read_map_elt_key<T>(&mut self, _idx: uint, _f: |&mut U8Decoder| -> Result<T, Error>) -> Result<T, Error> { Err(SyntaxError) }
fn read_map_elt_val<T>(&mut self, _idx: uint, _f: |&mut U8Decoder| -> Result<T, Error>) -> Result<T, Error> { Err(SyntaxError) }
}
}
//////////////////////////////////////////////////////////////////////////////
mod deserializer {
//use std::num;
use std::vec;
use super::{Error, EndOfStream, SyntaxError};
use de;
#[deriving(PartialEq, Show)]
enum State {
StartState,
SepOrEndState,
EndState,
}
pub struct IntDeserializer {
state: State,
len: uint,
iter: vec::MoveItems<int>,
}
impl IntDeserializer {
#[inline]
pub fn new(values: Vec<int>) -> IntDeserializer {
IntDeserializer {
state: StartState,
len: values.len(),
iter: values.move_iter(),
}
}
}
impl Iterator<Result<de::Token, Error>> for IntDeserializer {
#[inline]
fn next(&mut self) -> Option<Result<de::Token, Error>> {
match self.state {
StartState => {
self.state = SepOrEndState;
Some(Ok(de::SeqStart(self.len)))
}
SepOrEndState => {
match self.iter.next() {
Some(value) => {
Some(Ok(de::Int(value)))
}
None => {
self.state = EndState;
Some(Ok(de::End))
}
}
}
EndState => {
None
}
}
}
}
impl de::Deserializer<Error> for IntDeserializer {
#[inline]
fn end_of_stream_error<T>(&self) -> Result<T, Error> {
Err(EndOfStream)
}
#[inline]
fn syntax_error<T>(&self) -> Result<T, Error> {
Err(SyntaxError)
}
}
pub struct U8Deserializer {
state: State,
len: uint,
iter: vec::MoveItems<u8>,
}
impl U8Deserializer {
#[inline]
pub fn new(values: Vec<u8>) -> U8Deserializer {
U8Deserializer {
state: StartState,
len: values.len(),
iter: values.move_iter(),
}
}
}
impl Iterator<Result<de::Token, Error>> for U8Deserializer {
#[inline]
fn next(&mut self) -> Option<Result<de::Token, Error>> {
match self.state {
StartState => {
self.state = SepOrEndState;
Some(Ok(de::SeqStart(self.len)))
}
SepOrEndState => {
match self.iter.next() {
Some(value) => {
Some(Ok(de::U8(value)))
}
None => {
self.state = EndState;
Some(Ok(de::End))
}
}
}
EndState => {
None
}
}
}
}
impl de::Deserializer<Error> for U8Deserializer {
#[inline]
fn end_of_stream_error<T>(&self) -> Result<T, Error> {
Err(EndOfStream)
}
#[inline]
fn syntax_error<T>(&self) -> Result<T, Error> {
Err(SyntaxError)
}
}
}
//////////////////////////////////////////////////////////////////////////////
fn run_decoder<
E: Show,
D: Decoder<E>,
T: Clone + PartialEq + Show + Decodable<D, E>
>(mut d: D, value: T) {
let v: T = Decodable::decode(&mut d).unwrap();
assert_eq!(value, v);
}
fn run_deserializer<
E: Show,
D: Deserializer<E>,
T: Clone + PartialEq + Show + Deserializable
>(mut d: D, value: T) {
let v: T = Deserializable::deserialize(&mut d).unwrap();
assert_eq!(value, v);
}
#[bench]
fn bench_decoder_int_000(b: &mut Bencher) {
b.iter(|| {
let v: Vec<int> = vec!();
run_decoder(decoder::IntDecoder::new(v.clone()), v)
})
}
#[bench]
fn bench_decoder_int_003(b: &mut Bencher) {
b.iter(|| {
let v: Vec<int> = vec!(1, 2, 3);
run_decoder(decoder::IntDecoder::new(v.clone()), v)
})
}
#[bench]
fn bench_decoder_int_100(b: &mut Bencher) {
b.iter(|| {
let v: Vec<int> = range(0, 100).collect();
run_decoder(decoder::IntDecoder::new(v.clone()), v)
})
}
#[bench]
fn bench_decoder_u8_000(b: &mut Bencher) {
b.iter(|| {
let v: Vec<u8> = vec!();
run_decoder(decoder::U8Decoder::new(v.clone()), v)
})
}
#[bench]
fn bench_decoder_u8_003(b: &mut Bencher) {
b.iter(|| {
let v: Vec<u8> = vec!(1, 2, 3);
run_decoder(decoder::U8Decoder::new(v.clone()), v)
})
}
#[bench]
fn bench_decoder_u8_100(b: &mut Bencher) {
b.iter(|| {
let v: Vec<u8> = range(0u8, 100).collect();
run_decoder(decoder::U8Decoder::new(v.clone()), v)
})
}
#[bench]
fn bench_deserializer_int_000(b: &mut Bencher) {
b.iter(|| {
let v: Vec<int> = vec!();
run_deserializer(deserializer::IntDeserializer::new(v.clone()), v)
})
}
#[bench]
fn bench_deserializer_int_003(b: &mut Bencher) {
b.iter(|| {
let v: Vec<int> = vec!(1, 2, 3);
run_deserializer(deserializer::IntDeserializer::new(v.clone()), v)
})
}
#[bench]
fn bench_deserializer_int_100(b: &mut Bencher) {
b.iter(|| {
let v: Vec<int> = range(0, 100).collect();
run_deserializer(deserializer::IntDeserializer::new(v.clone()), v)
})
}
#[bench]
fn bench_deserializer_u8_000(b: &mut Bencher) {
b.iter(|| {
let v: Vec<u8> = vec!();
run_deserializer(deserializer::U8Deserializer::new(v.clone()), v)
})
}
#[bench]
fn bench_deserializer_u8_003(b: &mut Bencher) {
b.iter(|| {
let v: Vec<u8> = vec!(1, 2, 3);
run_deserializer(deserializer::U8Deserializer::new(v.clone()), v)
})
}
#[bench]
fn bench_deserializer_u8_100(b: &mut Bencher) {
b.iter(|| {
let v: Vec<u8> = range(0u8, 100).collect();
run_deserializer(deserializer::U8Deserializer::new(v.clone()), v)
})
}
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