You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: tables.rs
    path of file: ./repos/logos/logos-codegen/src/generator
    
    the code of the file until where you have to start completion: use crate::util::ToIdent;
use proc_macro2::{Literal, TokenStream};
use quote::{quote, ToTokens};
use syn::Ident;

pub struct TableStack {
    tables: Vec<(Ident, [u8; 256])>,
    shift: u8,
}

pub struct TableView<'a> {
    ident: &'a Ident,
    table: &'a mut [u8; 256],
    mask: u8,
}

impl TableStack {
    pub fn new() -> Self {
        TableStack {
            tabl
    
    pub fn view(&mut self) -> TableView {
        let mask = if self.shift < 8 {
            // Reusing existing table with a shifted mask
            let mask = 1u8 << self.shift;

            self.shift += 1;

            mask
        } else {
            // Need to create a new table
            let ident = format!("COMPACT_TABLE_{}", self.tables.len()).to_ident();

            self.tables.push((ident, [0; 256]));
            self.shift = 1;

            1
        };

        let (ref ident, ref mut table) = self.tables.last_mut().unwrap();

        TableView { ident, table, mask }
    }