/// <summary>
/// Skip whitespace, peek and raise error if not in range.
/// </summary>
/// <param name="exceptionToRaise">Exception to raise in case next char is not in range</param>
/// <param name="acceptable">List of acceptable chars</param>
public void Require(ReplExceptionCode exceptionToRaise = ReplExceptionCode.SyntaxError, params int[] acceptable)
{
var nextNonWhiteSpace = this.SkipWhitespace();
if (!acceptable.Contains(nextNonWhiteSpace))
{
throw new ReplRuntimeException(exceptionToRaise);
}
}
/// <summary>
/// Gets the message associated with <see cref="ReplExceptionCode"/>
/// </summary>
/// <param name="code">Whose message to set</param>
/// <returns>Associated message if there is any otherwise null</returns>
public static string GetMessage(this ReplExceptionCode code)
{
var members = ReplExceptionCodeType.GetMember(code.ToString());
if (members.Length == 0)
{
return(null);
}
var exceptionMessageAttribute = members[0].GetCustomAttribute <ExceptionMessageAttribute>();
return(exceptionMessageAttribute?.Message);
}
public ReplRuntimeException(ReplExceptionCode code) : base($"REPL Exception: {code}")
{
Code = code;
}
