// translate and keeps track of strings

use std::collections::HashMap;

pub type IdType = u32;

#[derive(Clone, Debug)]
pub struct Translator {
    strings: HashMap<String, IdType>,
    last_id: IdType
}

impl Translator {
    pub fn new() -> Self {
	Translator { strings: HashMap::new(), last_id: 0 }
    }


}

impl Translator {
    pub fn convert<S: AsRef<str>>(&mut self, s: S) -> IdType {
	*(self.strings.entry(s.as_ref().to_string()).or_insert({self.last_id += 1; self.last_id}))
    }
}