private Token Match(TokenType tokenType)
{
Token token = lookAheadBuffer.ReadToken();
if (token == null)
{
throw new ParserException("Expecting type " + tokenType + " but didn't get a token");
}
if (token.Type != tokenType)
{
throw new ParserException("Expecting type " + tokenType + " but got " + token.Type, token.Position);
}
return(token);
}
