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|
use criterion::{black_box, Criterion};
#[derive(Default)]
struct Strip(String);
impl Strip {
fn with_capacity(capacity: usize) -> Self {
Self(String::with_capacity(capacity))
}
}
impl anstyle_parse::Perform for Strip {
fn print(&mut self, c: char) {
self.0.push(c);
}
fn execute(&mut self, byte: u8) {
if byte.is_ascii_whitespace() {
self.0.push(byte as char);
}
}
}
fn strip(c: &mut Criterion) {
for (name, content) in [
("demo.vte", &include_bytes!("../tests/demo.vte")[..]),
("rg_help.vte", &include_bytes!("../tests/rg_help.vte")[..]),
("rg_linus.vte", &include_bytes!("../tests/rg_linus.vte")[..]),
(
"state_changes",
&b"\x1b]2;X\x1b\\ \x1b[0m \x1bP0@\x1b\\"[..],
),
] {
// Make sure the comparison is fair
if let Ok(content) = std::str::from_utf8(content) {
let mut stripped = Strip::with_capacity(content.len());
let mut parser = anstyle_parse::Parser::<anstyle_parse::DefaultCharAccumulator>::new();
for byte in content.as_bytes() {
parser.advance(&mut stripped, *byte);
}
assert_eq!(
stripped.0,
anstream::adapter::strip_str(content).to_string()
);
assert_eq!(
stripped.0,
String::from_utf8(anstream::adapter::strip_bytes(content.as_bytes()).into_vec())
.unwrap()
);
}
let mut group = c.benchmark_group(name);
group.bench_function("advance_strip", |b| {
b.iter(|| {
let mut stripped = Strip::with_capacity(content.len());
let mut parser =
anstyle_parse::Parser::<anstyle_parse::DefaultCharAccumulator>::new();
for byte in content {
parser.advance(&mut stripped, *byte);
}
black_box(stripped.0)
})
});
group.bench_function("strip_ansi_escapes", |b| {
b.iter(|| {
let stripped = strip_ansi_escapes::strip(content);
black_box(stripped)
})
});
if let Ok(content) = std::str::from_utf8(content) {
group.bench_function("strip_str", |b| {
b.iter(|| {
let stripped = anstream::adapter::strip_str(content).to_string();
black_box(stripped)
})
});
group.bench_function("StripStr", |b| {
b.iter(|| {
let mut stripped = String::with_capacity(content.len());
let mut state = anstream::adapter::StripStr::new();
for printable in state.strip_next(content) {
stripped.push_str(printable);
}
black_box(stripped)
})
});
}
group.bench_function("strip_bytes", |b| {
b.iter(|| {
let stripped = anstream::adapter::strip_bytes(content).into_vec();
black_box(stripped)
})
});
}
}
criterion::criterion_group!(benches, strip);
criterion::criterion_main!(benches);
|