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Diffstat (limited to 'vendor/arrayvec/benches/arraystring.rs')
-rw-r--r-- | vendor/arrayvec/benches/arraystring.rs | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/vendor/arrayvec/benches/arraystring.rs b/vendor/arrayvec/benches/arraystring.rs new file mode 100644 index 000000000..5b986fa2a --- /dev/null +++ b/vendor/arrayvec/benches/arraystring.rs @@ -0,0 +1,90 @@ + +extern crate arrayvec; +#[macro_use] extern crate bencher; + +use arrayvec::ArrayString; + +use bencher::Bencher; + +fn try_push_c(b: &mut Bencher) { + let mut v = ArrayString::<512>::new(); + b.iter(|| { + v.clear(); + while v.try_push('c').is_ok() { + } + v.len() + }); + b.bytes = v.capacity() as u64; +} + +fn try_push_alpha(b: &mut Bencher) { + let mut v = ArrayString::<512>::new(); + b.iter(|| { + v.clear(); + while v.try_push('α').is_ok() { + } + v.len() + }); + b.bytes = v.capacity() as u64; +} + +// Yes, pushing a string char-by-char is slow. Use .push_str. +fn try_push_string(b: &mut Bencher) { + let mut v = ArrayString::<512>::new(); + let input = "abcαβγ“”"; + b.iter(|| { + v.clear(); + for ch in input.chars().cycle() { + if !v.try_push(ch).is_ok() { + break; + } + } + v.len() + }); + b.bytes = v.capacity() as u64; +} + +fn push_c(b: &mut Bencher) { + let mut v = ArrayString::<512>::new(); + b.iter(|| { + v.clear(); + while !v.is_full() { + v.push('c'); + } + v.len() + }); + b.bytes = v.capacity() as u64; +} + +fn push_alpha(b: &mut Bencher) { + let mut v = ArrayString::<512>::new(); + b.iter(|| { + v.clear(); + while !v.is_full() { + v.push('α'); + } + v.len() + }); + b.bytes = v.capacity() as u64; +} + +fn push_string(b: &mut Bencher) { + let mut v = ArrayString::<512>::new(); + let input = "abcαβγ“”"; + b.iter(|| { + v.clear(); + for ch in input.chars().cycle() { + if !v.is_full() { + v.push(ch); + } else { + break; + } + } + v.len() + }); + b.bytes = v.capacity() as u64; +} + +benchmark_group!(benches, try_push_c, try_push_alpha, try_push_string, push_c, + push_alpha, push_string); +benchmark_main!(benches); |