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This is based on a one-off benchmark from unicode-rs#13
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Ed Page
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Apr 28, 2021
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extern crate criterion; | ||
extern crate unicode_xid; | ||
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use criterion::{criterion_group, criterion_main, BenchmarkId, Criterion, Throughput}; | ||
use unicode_xid::UnicodeXID; | ||
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fn bench_unicode_xid(c: &mut Criterion) { | ||
let unicode_chars = chars(1..0x3000); | ||
let ascii_chars = chars(1..0x80); | ||
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let mut group = c.benchmark_group("UnicodeXID"); | ||
group.throughput(Throughput::Bytes(unicode_chars.len() as u64)); | ||
group.bench_with_input( | ||
BenchmarkId::new("is_xid_start", "unicode"), | ||
&unicode_chars, | ||
|b, chars| b.iter(|| chars.iter().copied().map(UnicodeXID::is_xid_start).last()), | ||
); | ||
group.throughput(Throughput::Bytes(ascii_chars.len() as u64)); | ||
group.bench_with_input( | ||
BenchmarkId::new("is_xid_start", "ascii"), | ||
&ascii_chars, | ||
|b, chars| b.iter(|| chars.iter().copied().map(UnicodeXID::is_xid_start).last()), | ||
); | ||
group.throughput(Throughput::Bytes(unicode_chars.len() as u64)); | ||
group.bench_with_input( | ||
BenchmarkId::new("is_xid_continue", "unicode"), | ||
&unicode_chars, | ||
|b, chars| { | ||
b.iter(|| { | ||
chars | ||
.iter() | ||
.copied() | ||
.map(UnicodeXID::is_xid_continue) | ||
.last() | ||
}) | ||
}, | ||
); | ||
group.throughput(Throughput::Bytes(ascii_chars.len() as u64)); | ||
group.bench_with_input( | ||
BenchmarkId::new("is_xid_continue", "ascii"), | ||
&ascii_chars, | ||
|b, chars| { | ||
b.iter(|| { | ||
chars | ||
.iter() | ||
.copied() | ||
.map(UnicodeXID::is_xid_continue) | ||
.last() | ||
}) | ||
}, | ||
); | ||
group.finish(); | ||
} | ||
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fn chars(range: std::ops::Range<u32>) -> Vec<char> { | ||
range.filter_map(|i| std::char::from_u32(i)).collect() | ||
} | ||
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criterion_group!(benches, bench_unicode_xid); | ||
criterion_main!(benches); |