internal static IntPtr DescriptorHandleForType(Type interfaceType)
{
// internal version, no exceptions
var typeAttribute = interfaceType.GetCustomAttribute <SwiftProtocolTypeAttribute> ();
if (typeAttribute == null)
{
return(IntPtr.Zero);
}
var desc = SwiftNominalTypeDescriptor.FromDylibFile(typeAttribute.LibraryName, DLOpenMode.Now, typeAttribute.ProtocolDescriptor);
if (!desc.HasValue)
{
return(IntPtr.Zero);
}
return(desc.Value.Handle);
}
public static SwiftNominalTypeDescriptor DescriptorForType(Type interfaceType)
{
Exceptions.ThrowOnNull(interfaceType, nameof(interfaceType));
if (!interfaceType.IsInterface)
{
throw new SwiftRuntimeException($"Type {interfaceType.Name} is not an interface.");
}
var typeAttribute = interfaceType.GetCustomAttribute <SwiftProtocolTypeAttribute> ();
if (typeAttribute == null)
{
throw new SwiftRuntimeException($"Type {interfaceType.Name} does not have a SwiftProtocolType attribute");
}
var desc = SwiftNominalTypeDescriptor.FromDylibFile(typeAttribute.LibraryName, DLOpenMode.Now, typeAttribute.ProtocolDescriptor);
if (!desc.HasValue)
{
throw new SwiftRuntimeException($"Unable to find swift protocol type descriptor for {interfaceType.Name} with symbol {typeAttribute.ProtocolDescriptor} in file {typeAttribute.LibraryName}");
}
return(desc.Value);
}