68 lines
1.7 KiB
Rust
68 lines
1.7 KiB
Rust
#[macro_use]
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extern crate criterion;
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use criterion::Criterion;
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use winnow::ascii::float;
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use winnow::binary::be_u64;
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use winnow::error::InputError;
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use winnow::error::ParserError;
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use winnow::prelude::*;
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use winnow::stream::ParseSlice;
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type Stream<'i> = &'i [u8];
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fn parser(i: &mut Stream<'_>) -> ModalResult<u64> {
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be_u64.parse_next(i)
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}
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fn number(c: &mut Criterion) {
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let data = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12];
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parser
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.parse_peek(&data[..])
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.expect("should parse correctly");
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c.bench_function("number", move |b| {
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b.iter(|| parser.parse_peek(&data[..]).unwrap());
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});
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}
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fn float_bytes(c: &mut Criterion) {
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println!(
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"float_bytes result: {:?}",
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float::<_, f64, InputError<_>>.parse_peek(&b"-1.234E-12"[..])
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);
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c.bench_function("float bytes", |b| {
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b.iter(|| float::<_, f64, InputError<_>>.parse_peek(&b"-1.234E-12"[..]));
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});
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}
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fn float_str(c: &mut Criterion) {
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println!(
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"float_str result: {:?}",
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float::<_, f64, InputError<_>>.parse_peek("-1.234E-12")
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);
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c.bench_function("float str", |b| {
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b.iter(|| float::<_, f64, InputError<_>>.parse_peek("-1.234E-12"));
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});
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}
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fn std_float(input: &mut &[u8]) -> ModalResult<f64> {
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match input.parse_slice() {
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Some(n) => Ok(n),
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None => Err(ParserError::from_input(input)),
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}
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}
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fn std_float_bytes(c: &mut Criterion) {
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println!(
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"std_float_bytes result: {:?}",
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std_float.parse_peek(&b"-1.234E-12"[..])
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);
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c.bench_function("std_float bytes", |b| {
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b.iter(|| std_float.parse_peek(&b"-1.234E-12"[..]));
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});
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}
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criterion_group!(benches, number, float_bytes, std_float_bytes, float_str);
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criterion_main!(benches);
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