public virtual unsafe ICharSequence GetCharSequence(int index, int length, Encoding encoding)
{
this.CheckIndex0(index, length);
if (length == 0)
{
return(StringCharSequence.Empty);
}
if (this.HasMemoryAddress)
{
IntPtr ptr = this.AddressOfPinnedMemory();
if (ptr != IntPtr.Zero)
{
return(new StringCharSequence(UnsafeByteBufferUtil.GetString((byte *)(ptr + index), length, encoding)));
}
else
{
fixed(byte *p = &this.GetPinnableMemoryAddress())
return(new StringCharSequence(UnsafeByteBufferUtil.GetString(p + index, length, encoding)));
}
}
if (this.HasArray)
{
return(new StringCharSequence(encoding.GetString(this.Array, this.ArrayOffset + index, length)));
}
return(new StringCharSequence(this.ToString(index, length, encoding)));
}