Merging upstream version 1.75.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 134 insertions, 0 deletions

diff --git a/vendor/kstring/benches/access.rs b/vendor/kstring/benches/access.rs
new file mode 100644
index 000000000..a9b92d3d6
--- /dev/null
+++ b/vendor/kstring/benches/access.rs
@@ -0,0 +1,134 @@
+#![allow(
+    clippy::clone_on_copy,
+    clippy::useless_conversion,
+    clippy::clone_double_ref
+)]
+
+use criterion::{criterion_group, criterion_main, BenchmarkId, Criterion, Throughput};
+
+type StringCow<'s> = std::borrow::Cow<'s, str>;
+
+#[cfg(not(feature = "unstable_bench_subset"))]
+pub static FIXTURES: &[&str] = &[
+    "",
+    "0",
+    "01",
+    "012",
+    "0123",
+    "01234",
+    "012345",
+    "0123456",
+    "01234567",
+    "012345678",
+    "0123456789",
+    "01234567890123456789",
+    "0123456789012345678901234567890123456789",
+    "01234567890123456789012345678901234567890123456789012345678901234567890123456789",
+];
+
+#[cfg(feature = "unstable_bench_subset")]
+pub static FIXTURES: &[&str] = &[
+    "0123456789",
+    "01234567890123456789012345678901234567890123456789012345678901234567890123456789",
+];
+
+// Note: this is meant to measure the overhead for accessing the underlying str.  We shouldn't try
+// to optimize *just* the case being measured here.
+fn bench_access(c: &mut Criterion) {
+    let mut group = c.benchmark_group("access");
+    for fixture in FIXTURES {
+        let len = fixture.len();
+        group.throughput(Throughput::Bytes(len as u64));
+        group.bench_with_input(
+            BenchmarkId::new("StringCow::Borrowed", len),
+            &len,
+            |b, _| {
+                let uut = StringCow::Borrowed(*fixture);
+                let uut = criterion::black_box(uut);
+                b.iter(|| uut.is_empty())
+            },
+        );
+        group.bench_with_input(BenchmarkId::new("StringCow::Owned", len), &len, |b, _| {
+            let uut = StringCow::Owned(String::from(*fixture));
+            let uut = criterion::black_box(uut);
+            b.iter(|| uut.is_empty())
+        });
+        group.bench_with_input(
+            BenchmarkId::new("KString::from_static", len),
+            &len,
+            |b, _| {
+                let uut = kstring::KString::from_static(*fixture);
+                let uut = criterion::black_box(uut);
+                b.iter(|| uut.is_empty())
+            },
+        );
+        group.bench_with_input(BenchmarkId::new("KString::from_ref", len), &len, |b, _| {
+            let uut = kstring::KString::from_ref(*fixture);
+            let uut = criterion::black_box(uut);
+            b.iter(|| uut.is_empty())
+        });
+        group.bench_with_input(
+            BenchmarkId::new("KString::from_string", len),
+            &len,
+            |b, _| {
+                let uut = kstring::KString::from_string(String::from(*fixture));
+                let uut = criterion::black_box(uut);
+                b.iter(|| uut.is_empty())
+            },
+        );
+        #[cfg(not(feature = "unstable_bench_subset"))]
+        group.bench_with_input(
+            BenchmarkId::new("KStringCow::from_static", len),
+            &len,
+            |b, _| {
+                let uut = kstring::KStringCow::from_static(*fixture);
+                let uut = criterion::black_box(uut);
+                b.iter(|| uut.is_empty())
+            },
+        );
+        #[cfg(not(feature = "unstable_bench_subset"))]
+        group.bench_with_input(
+            BenchmarkId::new("KStringCow::from_ref", len),
+            &len,
+            |b, _| {
+                let uut = kstring::KStringCow::from_ref(*fixture);
+                let uut = criterion::black_box(uut);
+                b.iter(|| uut.is_empty())
+            },
+        );
+        #[cfg(not(feature = "unstable_bench_subset"))]
+        group.bench_with_input(
+            BenchmarkId::new("KStringCow::from_string", len),
+            &len,
+            |b, _| {
+                let uut = kstring::KStringCow::from_string(String::from(*fixture));
+                let uut = criterion::black_box(uut);
+                b.iter(|| uut.is_empty())
+            },
+        );
+        #[cfg(not(feature = "unstable_bench_subset"))]
+        group.bench_with_input(
+            BenchmarkId::new("KStringRef::from_static", len),
+            &len,
+            |b, _| {
+                let uut = kstring::KStringRef::from_static(*fixture);
+                let uut = criterion::black_box(uut);
+                b.iter(|| uut.is_empty())
+            },
+        );
+        #[cfg(not(feature = "unstable_bench_subset"))]
+        group.bench_with_input(
+            BenchmarkId::new("KStringRef::from_ref", len),
+            &len,
+            |b, _| {
+                let uut = kstring::KStringRef::from_ref(*fixture);
+                let uut = criterion::black_box(uut);
+                b.iter(|| uut.is_empty())
+            },
+        );
+    }
+    group.finish();
+}
+
+criterion_group!(benches, bench_access);
+criterion_main!(benches);