chore: checkpoint before Python removal

vendor/tinystr/benches/read.rs

@@ -0,0 +1,34 @@
+// 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
+// (online at: https://github.com/unicode-org/icu4x/blob/main/LICENSE ).
+
+mod common;
+use common::*;
+
+use criterion::black_box;
+use criterion::criterion_group;
+use criterion::criterion_main;
+use criterion::Bencher;
+use criterion::Criterion;
+
+use tinystr::TinyAsciiStr;
+
+fn read(c: &mut Criterion) {
+    macro_rules! cfs {
+        ($r:ty, $inputs:expr) => {
+            |b: &mut Bencher| {
+                let parsed: Vec<$r> = $inputs.iter().map(|s| s.parse().unwrap()).collect();
+                b.iter(|| {
+                    for s in &parsed {
+                        let _: &str = black_box(&**s);
+                    }
+                })
+            }
+        };
+    }
+
+    bench_block!(c, "read", cfs);
+}
+
+criterion_group!(benches, read,);
+criterion_main!(benches);