public override bool TryComputeEncodedBytes(ReadOnlySpan <byte> utf8, out int bytesNeeded)
{
var result = Utf8Encoder.TryComputeStringLength(utf8, out int characters);
bytesNeeded = characters * sizeof(char);
return(result);
}
public override bool TryDecode(ReadOnlySpan <byte> encodedBytes, out string text, out int bytesConsumed)
{
int len;
if (!Utf8Encoder.TryComputeStringLength(encodedBytes, out len))
{
text = string.Empty;
bytesConsumed = 0;
return(false);
}
text = new string(' ', len);
unsafe
{
fixed(char *p = text)
{
var charSpan = new Span <char>(p, len);
int written;
return(Utf8Encoder.TryDecode(encodedBytes, charSpan, out bytesConsumed, out written));
}
}
}