MeiliSearch/meilidb-core/src/reordered_attrs.rs
2019-10-04 10:26:32 +02:00

25 lines
654 B
Rust

#[derive(Default, Clone)]
pub struct ReorderedAttrs {
count: usize,
reorders: Vec<Option<u16>>,
}
impl ReorderedAttrs {
pub fn new() -> ReorderedAttrs {
ReorderedAttrs { count: 0, reorders: Vec::new() }
}
pub fn insert_attribute(&mut self, attribute: u16) {
self.reorders.resize(attribute as usize + 1, None);
self.reorders[attribute as usize] = Some(self.count as u16);
self.count += 1;
}
pub fn get(&self, attribute: u16) -> Option<u16> {
match self.reorders.get(attribute as usize) {
Some(Some(attribute)) => Some(*attribute),
_ => None,
}
}
}