public BinaryOverlayListByStartIndexWithRecord(
ReadOnlyMemorySlice <byte> mem,
BinaryOverlayFactoryPackage package,
BinaryOverlay.SpanFactory <T> getter,
int itemLength,
RecordType recordType,
bool skipHeader)
{
this._mem = mem;
this._package = package;
this._getter = getter;
this._itemLength = itemLength;
this._recordType = recordType;
this._totalItemLength = itemLength + this._package.MetaData.Constants.SubConstants.HeaderLength;
if (skipHeader)
{
_sliceOffset = this._package.MetaData.Constants.SubConstants.HeaderLength;
_itemOffset = 0;
}
else
{
_sliceOffset = 0;
_itemOffset = this._package.MetaData.Constants.SubConstants.HeaderLength;
}
}
public static IReadOnlyList <string> FactoryByCountLength <T>(
ReadOnlyMemorySlice <byte> mem,
BinaryOverlayFactoryPackage package,
byte countLength,
BinaryOverlay.SpanFactory <string> getter)
{
var count = countLength switch
{
4 => BinaryPrimitives.ReadUInt32LittleEndian(mem),
_ => throw new NotImplementedException(),
};
int[] locs = new int[count];
int loc = 0;
for (int i = 0; i < count - 1; i++)
{
locs[i] = loc;
var len = BinaryPrimitives.ReadUInt16LittleEndian(mem.Slice(loc));
loc += len + 2;
}
return(FactoryByArray(
mem.Slice(countLength),
package,
getter,
locs));
}
public static IReadOnlyList <T> FactoryByCountLength(
ReadOnlyMemorySlice <byte> mem,
BinaryOverlayFactoryPackage package,
int itemLength,
byte countLength,
BinaryOverlay.SpanFactory <T> getter)
{
uint count;
switch (countLength)
{
case 4:
count = BinaryPrimitives.ReadUInt32LittleEndian(mem);
break;
default:
throw new NotImplementedException();
}
if (((mem.Length - countLength) / itemLength) < count)
{
throw new ArgumentException("Item count and expected size did not match.");
}
return(new BinaryOverlayListByStartIndex(
mem.Slice(countLength, checked ((int)(count * itemLength))),
package,
getter,
itemLength));
}
public BinaryOverlayListByStartIndex(
ReadOnlyMemorySlice <byte> mem,
BinaryOverlayFactoryPackage package,
BinaryOverlay.SpanFactory <T> getter,
int itemLength)
{
this._mem = mem;
this._package = package;
this._getter = getter;
this._itemLength = itemLength;
}
public BinaryOverlayListByLocationArray(
ReadOnlyMemorySlice <byte> mem,
BinaryOverlayFactoryPackage package,
BinaryOverlay.SpanFactory <T> getter,
int[] locs)
{
this._mem = mem;
this._getter = getter;
this._package = package;
this._locations = locs;
}
public static IReadOnlyList <T> FactoryByStartIndex <T>(
ReadOnlyMemorySlice <byte> mem,
BinaryOverlayFactoryPackage package,
int itemLength,
BinaryOverlay.SpanFactory <T> getter)
{
return(new BinaryOverlayListByStartIndex <T>(
mem,
package,
getter,
itemLength));
}
public static IReadOnlyList <T> FactoryByArray <T>(
ReadOnlyMemorySlice <byte> mem,
BinaryOverlayFactoryPackage package,
BinaryOverlay.SpanFactory <T> getter,
int[] locs)
{
return(new BinaryOverlayListByLocationArray <T>(
mem,
package,
getter,
locs));
}
public BinaryOverlayListByStartIndexWithRecordSet(
ReadOnlyMemorySlice <byte> mem,
BinaryOverlayFactoryPackage package,
BinaryOverlay.SpanFactory <T> getter,
int itemLength,
ICollectionGetter <RecordType> recordTypes)
{
this._mem = mem;
this._package = package;
this._getter = getter;
this._itemLength = itemLength;
this._recordTypes = recordTypes;
this._totalItemLength = itemLength + this._package.MetaData.Constants.SubConstants.HeaderLength;
}
public static IReadOnlyList <T> FactoryByCountPerItem <T>(
OverlayStream stream,
BinaryOverlayFactoryPackage package,
int itemLength,
int countLength,
RecordType subrecordType,
RecordType countType,
BinaryOverlay.SpanFactory <T> getter,
bool skipHeader = true)
{
var mem = stream.RemainingMemory;
var initialHeader = package.MetaData.Constants.SubrecordFrame(mem);
var recType = initialHeader.RecordType;
if (recType == countType)
{
var count = countLength switch
{
1 => initialHeader.Content[0],
2 => BinaryPrimitives.ReadUInt16LittleEndian(initialHeader.Content),
4 => BinaryPrimitives.ReadUInt32LittleEndian(initialHeader.Content),
_ => throw new NotImplementedException(),
};
var countLen = initialHeader.TotalLength;
var contentLen = checked ((int)((itemLength + package.MetaData.Constants.SubConstants.HeaderLength) * count));
stream.Position += countLen + contentLen;
return(FactoryByCount(
mem.Slice(countLen, contentLen),
package: package,
itemLength: itemLength,
subrecordType: subrecordType,
count: count,
getter: getter,
skipHeader: skipHeader));
}
else
{
return(FactoryByArray(
mem: stream.RemainingMemory,
package: package,
getter: getter,
locs: BinaryOverlay.ParseRecordLocations(
stream: stream,
constants: package.MetaData.Constants.SubConstants,
trigger: subrecordType,
skipHeader: true)));
}
}
public static IReadOnlyList <T> FactoryByCount <T>(
ReadOnlyMemorySlice <byte> mem,
BinaryOverlayFactoryPackage package,
int itemLength,
uint count,
BinaryOverlay.SpanFactory <T> getter)
{
if ((mem.Length / itemLength) != count)
{
throw new ArgumentException("Item count and expected size did not match.");
}
return(new BinaryOverlayListByStartIndex <T>(
mem,
package,
getter,
itemLength));
}
public static IReadOnlyList <T> FactoryByCount <T>(
OverlayStream stream,
BinaryOverlayFactoryPackage package,
int itemLength,
int countLength,
RecordType subrecordType,
RecordType countType,
BinaryOverlay.SpanFactory <T> getter)
{
var mem = stream.RemainingMemory;
var initialHeader = package.MetaData.Constants.SubrecordFrame(mem);
var recType = initialHeader.RecordType;
if (recType == countType)
{
var count = countLength switch
{
1 => initialHeader.Content[0],
2 => (int)BinaryPrimitives.ReadUInt16LittleEndian(initialHeader.Content),
4 => checked ((int)BinaryPrimitives.ReadUInt32LittleEndian(initialHeader.Content)),
_ => throw new NotImplementedException(),
};
stream.Position += initialHeader.TotalLength;
if (!stream.TryReadSubrecordFrame(subrecordType, out var contentFrame))
{
if (count == 0)
{
return(Array.Empty <T>());
}
throw new ArgumentException($"List with a non zero {initialHeader.RecordType} counter did not follow up with expected type: {subrecordType}");
}
return(new BinaryOverlayListByStartIndex <T>(
contentFrame.Content,
package,
getter,
itemLength));
}
else
{
return(FactoryByStartIndex(
mem: stream.RemainingMemory,
package: package,
getter: getter,
itemLength: itemLength));
}
}
public static IReadOnlyList <T> FactoryByCount <T>(
ReadOnlyMemorySlice <byte> mem,
BinaryOverlayFactoryPackage package,
ICollectionGetter <RecordType> subrecordType,
int itemLength,
uint count,
BinaryOverlay.SpanFactory <T> getter)
{
if ((mem.Length / (itemLength + package.MetaData.Constants.SubConstants.HeaderLength)) != count)
{
throw new ArgumentException("Item count and expected size did not match.");
}
return(new BinaryOverlayListByStartIndexWithRecordSet <T>(
mem,
package,
getter,
itemLength,
subrecordType));
}
public static IReadOnlyList <T>?FactoryByCountNullIfZero <T>(
OverlayStream stream,
BinaryOverlayFactoryPackage package,
int itemLength,
int countLength,
RecordType subrecordType,
RecordType countType,
BinaryOverlay.SpanFactory <T> getter)
{
var mem = stream.RemainingMemory;
var initialHeader = package.MetaData.Constants.SubrecordFrame(mem);
var recType = initialHeader.RecordType;
if (recType == countType)
{
var count = countLength switch
{
1 => initialHeader.Content[0],
2 => (int)BinaryPrimitives.ReadUInt16LittleEndian(initialHeader.Content),
4 => checked ((int)BinaryPrimitives.ReadUInt32LittleEndian(initialHeader.Content)),
_ => throw new NotImplementedException(),
};
stream.Position += initialHeader.TotalLength;
if (count == 0)
{
return(null);
}
var contentFrame = stream.ReadSubrecordFrame(subrecordType);
return(new BinaryOverlayListByStartIndex <T>(
contentFrame.Content,
package,
getter,
itemLength));
}
else
{
return(FactoryByStartIndex(
mem: stream.RemainingMemory,
package: package,
getter: getter,
itemLength: itemLength));
}
}
