public TpsObject ParseField(TpsTypeCode type, int length, FieldDefinitionRecord fieldDefinitionRecord, RandomAccess rx)
{
if (fieldDefinitionRecord == null)
{
throw new ArgumentNullException(nameof(fieldDefinitionRecord));
}
if (rx == null)
{
throw new ArgumentNullException(nameof(rx));
}
switch (type)
{
case TpsTypeCode.Byte:
AssertEqual(1, length);
return(new TpsByte(rx));
case TpsTypeCode.Short:
AssertEqual(2, length);
return(new TpsShort(rx));
case TpsTypeCode.UShort:
AssertEqual(2, length);
return(new TpsUnsignedShort(rx));
case TpsTypeCode.Date:
return(new TpsDate(rx));
case TpsTypeCode.Time:
return(new TpsTime(rx));
case TpsTypeCode.Long:
AssertEqual(4, length);
return(new TpsLong(rx));
case TpsTypeCode.ULong:
AssertEqual(4, length);
return(new TpsUnsignedLong(rx));
case TpsTypeCode.SReal:
AssertEqual(4, length);
return(new TpsFloat(rx));
case TpsTypeCode.Real:
AssertEqual(8, length);
return(new TpsDouble(rx));
case TpsTypeCode.Decimal:
return(new TpsDecimal(rx, length, fieldDefinitionRecord.BcdDigitsAfterDecimalPoint));
case TpsTypeCode.String:
return(new TpsString(rx, length, Encoding));
case TpsTypeCode.CString:
return(new TpsCString(rx, Encoding));
case TpsTypeCode.PString:
return(new TpsPString(rx, Encoding));
case TpsTypeCode.Group:
return(new TpsGroup(rx, length));
default:
throw new ArgumentException($"Unsupported type {type} ({length})", nameof(type));
}
}
/// <summary> /// Checks to see if this field fits in the given group field. /// </summary> /// <param name="group">The group field to check.</param> /// <returns></returns> public bool IsInGroup(FieldDefinitionRecord group) => (group.Offset <= Offset) && ((group.Offset + group.Length) >= (Offset + Length));
