public override InvocationExpressionSyntax Create()
{
//Default to ASCII if no encoding specified
EncodingType encodingType = EncodingType.ASCII;
//Overriding default behavior.
bool hasSaneDefaults = Member.ContainingType.HasAttributeExact <WireSaneDefaultsAttribute>(true);
if (Member.HasAttributeExact <EncodingAttribute>())
{
encodingType = EncodingAttribute.Parse(Member.GetAttributeExact <EncodingAttribute>().ConstructorArguments.First().ToCSharpString());
}
if (Member.HasAttributeExact <KnownSizeAttribute>() && Member.HasAttributeExact <SendSizeAttribute>() && !hasSaneDefaults)
{
throw new InvalidOperationException($"Emit failed for Member: {ActualType} in Type: {Member.ContainingType.Name}. Cannot use Attributes: {nameof(SendSizeAttribute)} and {nameof(KnownSizeAttribute)} together.");
}
if (IsSendSizeString() && !Member.HasAttributeExact <DontTerminateAttribute>())
{
PrimitiveSizeType sendSize = SendSizeAttribute.Parse(Member.GetAttributeExact <SendSizeAttribute>().ConstructorArguments.First().ToCSharpString());
var generator = new RawLengthPrefixedStringTypeSerializationGenerator(ActualType, Member, Mode, encodingType, sendSize);
return(generator.Create());
}
else if (IsSendSizeString() || (hasSaneDefaults && !IsKnownSizeString())) //SANE DEFAULT
{
//Dont Terminate attribute FOUND!
PrimitiveSizeType sendSize = PrimitiveSizeType.Int32; //SANE DEFAULT size 65,000
if (Member.HasAttributeExact <SendSizeAttribute>())
{
sendSize = SendSizeAttribute.Parse(Member.GetAttributeExact <SendSizeAttribute>().ConstructorArguments.First().ToCSharpString());
}
var generator = new RawDontTerminateLengthPrefixedStringTypeSerializationGenerator(ActualType, Member, Mode, encodingType, sendSize);
return(generator.Create());
}
else if (IsKnownSizeString())
{
int size = KnownSizeAttribute.Parse(Member.GetAttributeExact <KnownSizeAttribute>().ConstructorArguments.First().ToCSharpString());
var generator = new RawKnownSizeStringTypeSerializerGenerator(ActualType, Member, Mode, encodingType, size, !Member.HasAttributeExact <DontTerminateAttribute>());
return(generator.Create());
}
else
{
//If it's not knownsize or sendsize then let's emit the default!
var generator = new RawDefaultStringTypeSerializerGenerator(ActualType, Member, Mode, encodingType, !Member.HasAttributeExact <DontTerminateAttribute>());
return(generator.Create());
}
}
/// <inheritdoc />
public ContextualSerializerLookupKey Create([NotNull] ISerializableTypeContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
//We must inspect the metadata to build the key
if (!context.HasContextualMemberMetadata())
{
GetKeyFromStorage(ContextTypeFlags.None, context.TargetType);
}
//Build the relevant flags
ContextTypeFlags flags = ContextTypeFlags.None;
if (context.HasMemberAttribute <ReadToEndAttribute>())
{
flags |= ContextTypeFlags.ReadToEnd;
}
if (context.HasMemberAttribute <ReverseDataAttribute>())
{
flags |= ContextTypeFlags.Reverse;
}
if (context.HasMemberAttribute <EnumStringAttribute>())
{
flags |= ContextTypeFlags.EnumString;
}
//Check for no terminate too
if (context.HasMemberAttribute <DontTerminateAttribute>())
{
flags |= ContextTypeFlags.DontTerminate;
}
if (context.HasMemberAttribute <CompressAttribute>())
{
flags |= ContextTypeFlags.Compressed;
}
//Encoding requires multiple flags to be set.
//We can't rely on the context key since it may be used for size
if (context.HasMemberAttribute <EncodingAttribute>())
{
flags |= ContextTypeFlags.Encoding;
EncodingAttribute attri = context.GetMemberAttribute <EncodingAttribute>();
switch (attri.DesiredEncodingType)
{
case EncodingType.ASCII:
flags |= ContextTypeFlags.ASCII;
break;
case EncodingType.UTF16:
flags |= ContextTypeFlags.UTF16;
break;
case EncodingType.UTF32:
flags |= ContextTypeFlags.UTF32;
break;
case EncodingType.UTF8:
flags |= ContextTypeFlags.UTF8;
break;
}
}
if (context.HasMemberAttribute <SendSizeAttribute>())
{
return(new ContextualSerializerLookupKey(flags | ContextTypeFlags.SendSize, new SendSizeContextKey(context.GetMemberAttribute <SendSizeAttribute>().TypeOfSize, context.GetMemberAttribute <SendSizeAttribute>().AddedSize), context.TargetType));
}
if (context.HasMemberAttribute <KnownSizeAttribute>())
{
return(new ContextualSerializerLookupKey(flags | ContextTypeFlags.FixedSize, new SizeContextKey(context.GetMemberAttribute <KnownSizeAttribute>().KnownSize), context.TargetType));
}
//If we're here then we have flags that weren't mutually exclusive
return(GetKeyFromStorage(flags, context.TargetType));
}
