TryGetBuffer()

bool System.Buffers.ReadOnlySequence< T >.TryGetBuffer ( in SequencePosition position, out ReadOnlyMemory< T > memory, out SequencePosition next )

inlinepackage

Definition at line 494 of file ReadOnlySequence.cs.

    {
        object @object = position.GetObject();
        next = default(SequencePosition);
        if (@object == null)
        {
            memory = default(ReadOnlyMemory<T>);
            return false;
        }
        SequenceType sequenceType = GetSequenceType();
        object endObject = _endObject;
        int integer = position.GetInteger();
        int index = GetIndex(_endInteger);
        if (sequenceType == SequenceType.MultiSegment)
        {
            ReadOnlySequenceSegment<T> readOnlySequenceSegment = (ReadOnlySequenceSegment<T>)@object;
            if (readOnlySequenceSegment != endObject)
            {
                ReadOnlySequenceSegment<T> next2 = readOnlySequenceSegment.Next;
                if (next2 == null)
                {
                    System.ThrowHelper.ThrowInvalidOperationException_EndPositionNotReached();
                }
                next = new SequencePosition(next2, 0);
                memory = readOnlySequenceSegment.Memory.Slice(integer);
            }
            else
            {
                memory = readOnlySequenceSegment.Memory.Slice(integer, index - integer);
            }
        }
        else
        {
            if (@object != endObject)
            {
                System.ThrowHelper.ThrowInvalidOperationException_EndPositionNotReached();
            }
            if (sequenceType == SequenceType.Array)
            {
                memory = new ReadOnlyMemory<T>((T[])@object, integer, index - integer);
            }
            else if (typeof(T) == typeof(char) && sequenceType == SequenceType.String)
            {
                memory = (ReadOnlyMemory<T>)(object)((string)@object).AsMemory(integer, index - integer);
            }
            else
            {
                memory = ((MemoryManager<T>)@object).Memory.Slice(integer, index - integer);
            }
        }
        return true;
    }

References System.Buffers.ReadOnlySequence< T >._endInteger, System.Buffers.ReadOnlySequence< T >._endObject, System.Buffers.ReadOnlySequence< T >.GetIndex(), System.Buffers.ReadOnlySequence< T >.GetSequenceType(), System.index, System.Buffers.ReadOnlySequenceSegment< T >.Memory, System.Buffers.ReadOnlySequenceSegment< T >.Next, and System.ThrowHelper.ThrowInvalidOperationException_EndPositionNotReached().

Referenced by System.Buffers.ReadOnlySequence< T >.TryGet().