#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
pub struct Span {
    pub file_id: usize,
    pub start: u32,
    pub end: u32,
}

impl Span {
    pub fn new(file_id: usize, start: u32, end: u32) -> Self {
        Self {
            file_id,
            start,
            end,
        }
    }
}