lt method

void lt()

Implementation

void lt() {
  final char = advance();

  final lexeme = peek().lexeme;
  if (lexeme == '=') {
    advance();
    tokens.add(char.toToken(TokenType.kLTE, lexeme: '<='));
    return;
  } else if (lexeme == '<') {
    advance();
    tokens.add(char.toToken(TokenType.kBitLShift, lexeme: '<<'));
    return;
  }
  tokens.add(char.toToken(TokenType.kLT));
}