#include "type.hpp"
#include <sstream>
#include <algorithm>

std::string type_mgr::new_type_name() {
    std::ostringstream oss;
    int temp = last_id++;

    do {
        oss << (char) ('a' + (temp % 26));
        temp /= 26;
    } while(temp);
    std::string str = oss.str();

    std::reverse(str.begin(), str.end());
    return str;
};

type_ptr type_mgr::new_type() {
    return type_ptr(new type_var(new_type_name()));
}

type_ptr type_mgr::new_arrow_type() {
    return type_ptr(new type_arr(new_type(), new_type()));
}