public unsafe void Combine <T>(T thing) where T : ISwiftHashable
{
fixed(byte *thisSwiftDataPtr = StructMarshal.Marshaler.PrepareNominal(this))
{
IntPtr thingIntPtr;
ISwiftObject thingProxy = null;
var thingIsSwiftable = StructMarshal.Marshaler.IsSwiftRepresentable(typeof(T));
if (thingIsSwiftable)
{
byte *thingPtr = stackalloc byte [StructMarshal.Marshaler.Strideof(typeof(T))];
thingIntPtr = new IntPtr(thingPtr);
StructMarshal.Marshaler.ToSwift(thing, thingIntPtr);
}
else
{
if (SwiftProtocolTypeAttribute.IsAssociatedTypeProxy(typeof(ISwiftHashable)))
{
byte *thingPtr0 = stackalloc byte [IntPtr.Size];
thingIntPtr = new IntPtr(thingPtr0);
Marshal.WriteIntPtr(thingIntPtr, thingProxy.SwiftObject);
}
else
{
var thingExistentialContainer = SwiftObjectRegistry.Registry.ExistentialContainerForProtocols(thing, typeof(ISwiftHashable));
byte *thingProtoPtr = stackalloc byte [thingExistentialContainer.SizeOf];
thingIntPtr = new IntPtr(thingProtoPtr);
thingExistentialContainer.CopyTo(thingIntPtr);
}
}
NativeMethodsForSwiftHasher.PI_hasherCombine((IntPtr)thisSwiftDataPtr, thingIntPtr,
StructMarshal.Marshaler.Metatypeof(typeof(T), new Type [] { typeof(ISwiftHashable) }),
StructMarshal.Marshaler.ProtocolWitnessof(typeof(ISwiftHashable), typeof(T)));
if (thingIsSwiftable)
{
StructMarshal.Marshaler.ReleaseSwiftPointer(typeof(T), thingIntPtr);
}
else
{
if (thingProxy != null)
{
StructMarshal.ReleaseSwiftObject(thingProxy);
}
}
}
}
