public BaseActivationFactory(string typeNamespace, string typeFullName)
{
var runtimeClassId = TypeExtensions.RemoveNamespacePrefix(typeFullName);
// Prefer the RoGetActivationFactory HRESULT failure over the LoadLibrary/etc. failure
int hr;
(_IActivationFactory, hr) = WinrtModule.GetActivationFactory(runtimeClassId);
if (_IActivationFactory != null)
{
return;
}
var moduleName = typeNamespace;
while (true)
{
try
{
(_IActivationFactory, _) = DllModule.Load(moduleName + ".dll").GetActivationFactory(runtimeClassId);
if (_IActivationFactory != null)
{
return;
}
}
catch (Exception) { }
var lastSegment = moduleName.LastIndexOf(".");
if (lastSegment <= 0)
{
Marshal.ThrowExceptionForHR(hr);
}
moduleName = moduleName.Remove(lastSegment);
}
}
public static string GetSignature(Type type)
{
var helperType = type.FindHelperType();
if (helperType != null)
{
var sigMethod = helperType.GetMethod("GetGuidSignature", BindingFlags.Static | BindingFlags.Public);
if (sigMethod != null)
{
return((string)sigMethod.Invoke(null, new Type[] { }));
}
}
if (type == typeof(object))
{
return("cinterface(IInspectable)");
}
if (type.IsGenericType)
{
var args = type.GetGenericArguments().Select(t => GetSignature(t));
return("pinterface({" + GetGUID(type) + "};" + String.Join(";", args) + ")");
}
if (type.IsValueType)
{
switch (type.Name)
{
case "SByte": return("i1");
case "Byte": return("u1");
case "Int16": return("i2");
case "UInt16": return("u2");
case "Int32": return("i4");
case "UInt32": return("u4");
case "Int64": return("i8");
case "UInt64": return("u8");
case "Single": return("f4");
case "Double": return("f8");
case "Boolean": return("b1");
case "Char": return("c2");
case "Guid": return("g16");
default:
{
if (type.IsEnum)
{
var isFlags = type.CustomAttributes.Any(cad => cad.AttributeType == typeof(FlagsAttribute));
return("enum(" + TypeExtensions.RemoveNamespacePrefix(type.FullName) + ";" + (isFlags ? "u4" : "i4") + ")");
}
if (!type.IsPrimitive)
{
var args = type.GetFields(BindingFlags.Instance | BindingFlags.Public).Select(fi => GetSignature(fi.FieldType));
return("struct(" + TypeExtensions.RemoveNamespacePrefix(type.FullName) + ";" + String.Join(";", args) + ")");
}
throw new InvalidOperationException("unsupported value type");
}
}
}
if (type == typeof(string))
{
return("string");
}
if (Projections.TryGetDefaultInterfaceTypeForRuntimeClassType(type, out Type iface))
{
return("rc(" + TypeExtensions.RemoveNamespacePrefix(type.FullName) + ";" + GetSignature(iface) + ")");
}
if (type.IsDelegate())
{
return("delegate({" + GetGUID(type) + "})");
}
return("{" + type.GUID.ToString() + "}");
}