GetFirstSpan() [2/2]

void System.Buffers.ReadOnlySequence< T >.GetFirstSpan ( out ReadOnlySpan< T > first, out SequencePosition next )

inlinepackage

Definition at line 885 of file ReadOnlySequence.cs.

    {
        first = default(ReadOnlySpan<T>);
        next = default(SequencePosition);
        object startObject = _startObject;
        int startInteger = _startInteger;
        if (startObject == null)
        {
            return;
        }
        bool flag = startObject != _endObject;
        int endInteger = _endInteger;
        if (startInteger >= 0)
        {
            if (endInteger >= 0)
            {
                ReadOnlySequenceSegment<T> readOnlySequenceSegment = (ReadOnlySequenceSegment<T>)startObject;
                first = readOnlySequenceSegment.Memory.Span;
                if (flag)
                {
                    first = first.Slice(startInteger);
                    next = new SequencePosition(readOnlySequenceSegment.Next, 0);
                }
                else
                {
                    first = first.Slice(startInteger, endInteger - startInteger);
                }
            }
            else
            {
                if (flag)
                {
                    System.ThrowHelper.ThrowInvalidOperationException_EndPositionNotReached();
                }
                first = new ReadOnlySpan<T>((T[])startObject, startInteger, (endInteger & 0x7FFFFFFF) - startInteger);
            }
        }
        else
        {
            first = GetFirstSpanSlow(startObject, startInteger, endInteger, flag);
        }
    }

References System.Buffers.ReadOnlySequence< T >._endInteger, System.Buffers.ReadOnlySequence< T >._endObject, System.Buffers.ReadOnlySequence< T >._startInteger, System.Buffers.ReadOnlySequence< T >._startObject, System.Buffers.ReadOnlySequence< T >.GetFirstSpanSlow(), System.Buffers.ReadOnlySequenceSegment< T >.Memory, System.Buffers.ReadOnlySequenceSegment< T >.Next, and System.ThrowHelper.ThrowInvalidOperationException_EndPositionNotReached().