private unsafe static bool TryConvert <T>(IntPtr intPtr,
UIntPtr length,
TryReadItem <T> factory,
[MaybeNullWhen(false)] out T value)
{
if (intPtr != IntPtr.Zero)
{
var span = new ReadOnlySpan <byte>((byte *)intPtr, (int)length);
var reader = new BufferReader <byte>(span);
return(factory(ref reader, out value));
}
value = default !;
public static bool TryReadHexToken <T>(this JsonReader reader, TryReadItem <T> factory, [MaybeNullWhen(false)] out T value)
{
if (reader.TokenType == JsonToken.String)
{
var hex = (string)reader.Value;
using var memoryOwner = MemoryPool <byte> .Shared.Rent(hex.Length >> 1);
if (hex.TryConvertHexString(memoryOwner.Memory.Span, out var bytesWritten))
{
var bufferReader = new BufferReader <byte>(memoryOwner.Memory.Span.Slice(0, hex.Length >> 1));
if (factory(ref bufferReader, out value))
{
return(true);
}
}
}
value = default !;