void CollectArray(IArrayTypeSymbol array)
{
var elemType = array.ElementType;
CollectCore(elemType);
var info = new GenericSerializationInfo
{
FullName = array.ToDisplayString(SymbolDisplayFormat.FullyQualifiedFormat),
};
if (array.IsSZArray)
{
info.FormatterName = $"global::Utf8Json.Formatters.ArrayFormatter<{elemType.ToDisplayString(SymbolDisplayFormat.FullyQualifiedFormat)}>";
}
else if (array.Rank == 2)
{
info.FormatterName = $"global::Utf8Json.Formatters.TwoDimentionalArrayFormatter<{elemType.ToDisplayString(SymbolDisplayFormat.FullyQualifiedFormat)}>";
}
else if (array.Rank == 3)
{
info.FormatterName = $"global::Utf8Json.Formatters.ThreeDimentionalArrayFormatter<{elemType.ToDisplayString(SymbolDisplayFormat.FullyQualifiedFormat)}>";
}
else if (array.Rank == 4)
{
info.FormatterName = $"global::Utf8Json.Formatters.FourDimentionalArrayFormatter<{elemType.ToDisplayString(SymbolDisplayFormat.FullyQualifiedFormat)}>";
}
else
{
throw new InvalidOperationException("does not supports array dimention, " + info.FullName);
}
collectedGenericInfo.Add(info);
return;
}
void CollectGeneric(INamedTypeSymbol type)
{
var genericType = type.ConstructUnboundGenericType();
var genericTypeString = genericType.ToDisplayString();
var fullName = type.ToDisplayString(SymbolDisplayFormat.FullyQualifiedFormat);
// special case
if (fullName == "global::System.ArraySegment<byte>" || fullName == "global::System.ArraySegment<byte>?")
{
return;
}
// nullable
if (genericTypeString == "T?")
{
CollectCore(type.TypeArguments[0]);
if (!embeddedTypes.Contains(type.TypeArguments[0].ToString()))
{
var info = new GenericSerializationInfo
{
FormatterName = $"global::Utf8Json.Formatters.NullableFormatter<{type.TypeArguments[0].ToDisplayString(SymbolDisplayFormat.FullyQualifiedFormat)}>",
FullName = type.ToDisplayString(SymbolDisplayFormat.FullyQualifiedFormat),
};
collectedGenericInfo.Add(info);
}
return;
}
// collection
if (knownGenericTypes.TryGetValue(genericTypeString, out var formatter))
{
foreach (var item in type.TypeArguments)
{
CollectCore(item);
}
var typeArgs = string.Join(", ", type.TypeArguments.Select(x => x.ToDisplayString(SymbolDisplayFormat.FullyQualifiedFormat)));
var f = formatter.Replace("TREPLACE", typeArgs);
var info = new GenericSerializationInfo
{
FormatterName = f,
FullName = type.ToDisplayString(SymbolDisplayFormat.FullyQualifiedFormat),
};
collectedGenericInfo.Add(info);
if (genericTypeString == "System.Linq.ILookup<,>")
{
formatter = knownGenericTypes["System.Linq.IGrouping<,>"];
f = formatter.Replace("TREPLACE", typeArgs);
var groupingInfo = new GenericSerializationInfo
{
FormatterName = f,
FullName = $"global::System.Linq.IGrouping<{typeArgs}>",
};
collectedGenericInfo.Add(groupingInfo);
formatter = knownGenericTypes["System.Collections.Generic.IEnumerable<>"];
typeArgs = type.TypeArguments[1].ToDisplayString(SymbolDisplayFormat.FullyQualifiedFormat);
f = formatter.Replace("TREPLACE", typeArgs);
var enumerableInfo = new GenericSerializationInfo
{
FormatterName = f,
FullName = $"global::System.Collections.Generic.IEnumerable<{typeArgs}>",
};
collectedGenericInfo.Add(enumerableInfo);
}
}
}