public static Option <DeserializeInfo <B> > deserialize(
IDeserializer <A> aDeserializer, Fn <A, Option <B> > mapper,
byte[] serialized, int startIndex
)
{
var aInfoOpt = aDeserializer.deserialize(serialized, startIndex);
if (aInfoOpt.isNone)
{
return(Option <DeserializeInfo <B> > .None);
}
var aInfo = aInfoOpt.get;
var bOpt = mapper(aInfo.value);
if (bOpt.isNone)
{
return(Option <DeserializeInfo <B> > .None);
}
var bInfo = new DeserializeInfo <B>(bOpt.get, aInfo.bytesRead);
return(F.some(bInfo));
}
public Option <DeserializeInfo <Tpl <A, B> > > deserialize(byte[] serialized, int startIndex)
{
try {
var aOpt = aRW.deserialize(serialized, startIndex);
if (aOpt.isNone)
{
return(Option <DeserializeInfo <Tpl <A, B> > > .None);
}
var aInfo = aOpt.get;
var bOpt = bRW.deserialize(serialized, startIndex + aInfo.bytesRead);
if (bOpt.isNone)
{
return(Option <DeserializeInfo <Tpl <A, B> > > .None);
}
var bInfo = bOpt.get;
var info = new DeserializeInfo <Tpl <A, B> >(
F.t(aInfo.value, bInfo.value),
aInfo.bytesRead + bInfo.bytesRead
);
return(F.some(info));
}
catch (Exception) { return(Option <DeserializeInfo <Tpl <A, B> > > .None); }
}
static A valueFromInfo <A>(DeserializeInfo <A> info, int serializedLength)
{
info.bytesRead.shouldEqual(serializedLength);
return(info.value);
}