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// This file is part of ICU4X. For terms of use, please see the file
// called LICENSE at the top level of the ICU4X source tree
use criterion::{black_box, criterion_group, criterion_main, Criterion};
use icu_locid::Locale;
use icu_locid_transform::LocaleCanonicalizer;
use icu_locid_transform::LocaleExpander;
fn canonicalize_bench(c: &mut Criterion) {
let lc = LocaleCanonicalizer::new();
let mut group = c.benchmark_group("uncanonicalized");
let data: Vec<String> =
serde_json::from_str(include_str!("fixtures/uncanonicalized-locales.json"))
.expect("Failed to read a fixture");
let locales: Vec<Locale> = data.iter().map(|s| s.parse().unwrap()).collect();
group.bench_function("clone", |b| {
b.iter(|| {
for locale in &locales {
let _ = black_box(locale).clone();
}
})
});
group.bench_function("canonicalize", |b| {
b.iter(|| {
for locale in &locales {
let mut locale = black_box(locale).clone();
lc.canonicalize(&mut locale);
}
})
});
group.finish();
}
fn canonicalize_noop_bench(c: &mut Criterion) {
let lc = LocaleCanonicalizer::new();
let mut group = c.benchmark_group("canonicalized");
// None of these locales require canonicalization, so this measures the cost of calling
// the canonicalizer on locales that will not be modified.
let data: Vec<String> = serde_json::from_str(include_str!("fixtures/locales.json"))
.expect("Failed to read a fixture");
let locales: Vec<Locale> = data.iter().map(|s| s.parse().unwrap()).collect();
group.bench_function("clone", |b| {
b.iter(|| {
for locale in &locales {
let _ = black_box(locale).clone();
}
})
});
group.bench_function("canonicalize", |b| {
b.iter(|| {
for locale in &locales {
let mut locale = black_box(locale).clone();
lc.canonicalize(&mut locale);
}
})
});
group.finish();
}
fn maximize_bench(c: &mut Criterion) {
let lc = LocaleExpander::new();
let mut group = c.benchmark_group("likelysubtags");
let data: Vec<String> = serde_json::from_str(include_str!("fixtures/locales.json"))
.expect("Failed to read a fixture");
let locales: Vec<Locale> = data.iter().map(|s| s.parse().unwrap()).collect();
group.bench_function("maximize", |b| {
b.iter(|| {
for locale in &locales {
let mut locale = locale.clone();
lc.maximize(black_box(&mut locale));
}
})
});
group.bench_function("minimize", |b| {
b.iter(|| {
for locale in &locales {
let mut locale = locale.clone();
lc.minimize(black_box(&mut locale));
}
})
});
group.finish();
}
criterion_group!(
benches,
canonicalize_bench,
canonicalize_noop_bench,
maximize_bench
);
criterion_main!(benches);