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Simplify highlighting infra

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This also fixes the killer whale bug
This commit is contained in:
Aleksey Kladov 2021-01-08 01:39:02 +03:00
parent 981a0d708e
commit e30c1c3fbf
11 changed files with 287 additions and 276 deletions
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18
crates/stdx/src/lib.rs
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@ -1,5 +1,5 @@
//! Missing batteries for standard libraries.
use std::{ops, process, time::Instant};
use std::{cmp::Ordering, ops, process, time::Instant};
mod macros;
pub mod panic_context;
@ -117,7 +117,12 @@ impl<'a> Iterator for LinesWithEnds<'a> {
}
}
// https://github.com/rust-lang/rust/issues/73831
/// Returns `idx` such that:
///
/// ∀ x in slice[..idx]: pred(x)
/// && ∀ x in slice[idx..]: !pred(x)
///
/// https://github.com/rust-lang/rust/issues/73831
pub fn partition_point<T, P>(slice: &[T], mut pred: P) -> usize
where
P: FnMut(&T) -> bool,
@ -147,6 +152,15 @@ where
left
}
pub fn equal_range_by<T, F>(slice: &[T], mut key: F) -> (usize, usize)
where
F: FnMut(&T) -> Ordering,
{
let start = partition_point(slice, |it| key(it) == Ordering::Less);
let len = partition_point(&slice[start..], |it| key(it) == Ordering::Equal);
(start, len)
}
pub struct JodChild(pub process::Child);
impl ops::Deref for JodChild {