public static T CreateProxy <T>(this HubConnection connection)
{
var impl = new Implementer <T>();
bool isIProxy = typeof(IProxy).IsAssignableFrom(typeof(T));
if (isIProxy)
{
impl.Member(o => ((IProxy)o).Connection).Returns(connection);
}
foreach (var method in impl.Methods.Where(o => (typeof(T).IsInterface || o.IsVirtual) && !o.IsSpecialName && o.IsPublic && typeof(Task).IsAssignableFrom(o.ReturnType)))
{
var invokeMethod = ResolveInvokeMethod(method);
int invokeMethodParamCount = invokeMethod.GetParameters().Length;
impl.Member <object>(method).Callback(args =>
{
var invokeArgs = new object[invokeMethodParamCount];
invokeArgs[0] = connection;
invokeArgs[1] = method.Name;
for (int i = 0; i < args.Count; i++)
{
invokeArgs[i + 2] = args.Values.ElementAt(i);
}
return(invokeMethod.Invoke(null, invokeArgs));
});
}
return(impl.Finish());
}
internal static TData GenerateDataObject(object dataObject)
{
if (!typeof(TData).IsInterface)
{
throw new Exception($"{nameof(TData)} must be an interface type");
}
if (ImplDataCache == null)
{
var impl = new Implementer <TData>(dataObject.GetType());
foreach (var prop in impl.Properties)
{
if (prop.GetMethod != null)
{
impl.Getter(prop).Callback(o =>
{
var file = o["__data"] as ReadableDataFile;
return(file.GetNonGeneric(
type: prop.PropertyType,
key: prop.Name
));
});
}
if (prop.SetMethod != null)
{
impl.Setter(prop, (value, data) =>
{
var file = (ReadableWritableDataFile)data;
file?.SetNonGeneric(
type: prop.PropertyType,
key: prop.Name,
value);
});
}
}
ImplDataCache = impl.Finish();
}
return(ClassUtils.Copy(ImplDataCache, dataObject));
}
/// <summary>
/// Creates a proxy type for this queue. If <typeparamref name="T"/> is an interface, every method
/// will be overriden to call <see cref="Call(string, Type, object[])"/>. If it isn't an interface,
/// all of its virtual or abstract methods will be overriden instead.
/// </summary>
/// <typeparam name="T">The type of the proxy to create</typeparam>
public T CreateProxy <T>()
{
CheckDisposed();
var impl = new Implementer <T>();
foreach (var item in impl.Methods.Where(o => o.DeclaringType == typeof(T)))
{
var returnType = item.ReturnType;
if (returnType.IsGenericType && returnType.GetGenericTypeDefinition() == typeof(Task <>))
{
returnType = returnType.GenericTypeArguments[0];
}
impl.Member(item).Callback(args =>
{
if (typeof(Task).IsAssignableFrom(item.ReturnType))
{
var callMethod = this
.GetType()
#if NETSTANDARD2_1 || NETCOREAPP3_0
.GetMethod("Call", 1, new[] { typeof(string), typeof(object[]) })
#else
.GetMethods()
.Single(o => o.ContainsGenericParameters && o
.GetParameters()
.Select(o => o.ParameterType)
.SequenceEqual(new[] { typeof(string), typeof(object[]) }))
#endif
.MakeGenericMethod(returnType);
return(callMethod.Invoke(this, new object[] { item.Name, args.Values.ToArray() }));
}
else
{
return(Call(item.Name, returnType, args.Values.ToArray()).Result);
}
});
}
return(impl.Finish());
}