Add a benchmark of pattern parsing.

This test case comes from the usecase of using URLPattern for implementing
Compression Dictionary Transport.

It is useful for showing off the forthcoming improvements to pattern parsing

Author: jrmuizel

Cargo.toml

@@ -15,3 +15,8 @@ icu_properties = "2"
 
 [dev-dependencies]
 serde_json = "1.0.66"
+criterion = "0.5"
+
+[[bench]]
+name = "parse_patterns"
+harness = false

benches/parse_patterns.rs

@@ -0,0 +1,19 @@
+use criterion::{black_box, criterion_group, criterion_main, Criterion};
+use urlpattern::quirks::{self, EcmaRegexp};
+
+fn bench_parse_shipping_groups_summary(c: &mut Criterion) {
+    c.bench_function("parse component-ShippingGroupsSummary.*.js", |b| {
+        b.iter(|| {
+            let input = quirks::process_construct_pattern_input(
+                black_box(quirks::StringOrInit::String(
+                    "component-ShippingGroupsSummary.*.js".to_owned()
+                )),
+                black_box(Some("https://shop.app/web/")),
+            );
+            quirks::parse_pattern::<EcmaRegexp>(input.unwrap(), urlpattern::UrlPatternOptions::default()).unwrap();
+        })
+    });
+}
+
+criterion_group!(benches, bench_parse_shipping_groups_summary);
+criterion_main!(benches);