#pragma once

#include "object.hh"
#include <cstdint>
#include <string>

enum class TokenType : uint8_t {
  // Single-character tokens.
  LEFT_PAREN, RIGHT_PAREN, LEFT_BRACE, RIGHT_BRACE,
  COMMA, DOT, MINUS, PLUS, SEMICOLON, SLASH, STAR,

  // One or two character tokens.
  BANG, BANG_EQUAL,
  EQUAL, EQUAL_EQUAL,
  GREATER, GREATER_EQUAL,
  LESS, LESS_EQUAL,

  // Literals.
  IDENTIFIER, STRING, NUMBER,

  // Keywords.
  AND, CLASS, ELSE, FALSE, FUN, FOR, IF, NIL, OR,
  PRINT, RETURN, SUPER, THIS, TRUE, VAR, WHILE,

  EOFILE,
};

struct Token {
  Token(TokenType type, const std::string &lexeme, Object &literal, int line)
    : type{type}, lexeme{lexeme}, literal{literal}, line{line}
  {};

  TokenType type;
  std::string lexeme;
  Object &literal;
  int line;
};

std::ostream &operator<<(std::ostream &os, const Token &token);