use std::{num::NonZeroU32, sync::Arc}; #[derive(Clone, Debug)]pub struct HighlightMap(Arc<[Option<HighlightId>]>); #[derive(Clone, Copy, Debug, PartialEq, Eq)]pub struct HighlightId(NonZeroU32); impl HighlightId {    pub const TABSTOP_INSERT_ID: HighlightId = HighlightId(NonZeroU32::new(u32::MAX - 1).unwrap());    pub const TABSTOP_REPLACE_ID: HighlightId = HighlightId(NonZeroU32::new(u32::MAX - 2).unwrap());     pub fn new(capture_id: u32) -> Self {        Self(NonZeroU32::new(capture_id + 1).unwrap_or(NonZeroU32::MAX))    }} impl From<HighlightId> for usize {    fn from(value: HighlightId) -> Self {        value.0.get() as usize - 1    }} impl HighlightMap {    #[inline]    pub fn from_ids(highlight_ids: impl IntoIterator<Item = Option<HighlightId>>) -> Self {        Self(highlight_ids.into_iter().collect())    }     #[inline]    pub fn get(&self, capture_id: u32) -> Option<HighlightId> {        self.0.get(capture_id as usize).copied().flatten()    }} impl Default for HighlightMap {    fn default() -> Self {        Self(Arc::new([]))    }}