/// <summary>
/// Initializes a new instance of the <see cref="DelegateTypeDescriptor"/> class.
/// </summary>
/// <param name="type">The type.</param>
private DelegateTypeDescriptor(Type type)
{
foreach (var iface in type.GetInterfaces())
{
if (!iface.IsGenericType)
{
continue;
}
var genericTypeDefinition = iface.GetGenericTypeDefinition();
if (genericTypeDefinition == typeof(IComputeFunc <>))
{
ThrowIfMultipleInterfaces(_computeOutFunc, type, typeof(IComputeFunc <>));
_computeOutFunc = DelegateConverter.CompileFunc(iface);
}
else if (genericTypeDefinition == typeof(IComputeFunc <,>))
{
ThrowIfMultipleInterfaces(_computeFunc, type, typeof(IComputeFunc <,>));
var args = iface.GetGenericArguments();
_computeFunc = DelegateConverter.CompileFunc <Func <object, object, object> >(iface, new[] { args[0] });
}
else if (genericTypeDefinition == typeof(IEventFilter <>))
{
ThrowIfMultipleInterfaces(_eventFilter, type, typeof(IEventFilter <>));
var args = iface.GetGenericArguments();
_eventFilter = DelegateConverter.CompileFunc <Func <object, object, bool> >(iface,
new[] { args[0] }, new[] { true, false });
}
else if (genericTypeDefinition == typeof(ICacheEntryFilter <,>))
{
ThrowIfMultipleInterfaces(_cacheEntryFilter, type, typeof(ICacheEntryFilter <,>));
var args = iface.GetGenericArguments();
var entryType = typeof(ICacheEntry <,>).MakeGenericType(args);
var invokeFunc = DelegateConverter.CompileFunc <Func <object, object, bool> >(iface,
new[] { entryType }, new[] { true, false });
var ctor = DelegateConverter.CompileCtor <Func <object, object, object> >(
typeof(CacheEntry <,>).MakeGenericType(args), args);
// Resulting func constructs CacheEntry and passes it to user implementation
_cacheEntryFilter = (obj, k, v) => invokeFunc(obj, ctor(k, v));
}
else if (genericTypeDefinition == typeof(ICacheEntryProcessor <, , ,>))
{
ThrowIfMultipleInterfaces(_cacheEntryProcessor, type, typeof(ICacheEntryProcessor <, , ,>));
var args = iface.GetGenericArguments();
var entryType = typeof(IMutableCacheEntry <,>).MakeGenericType(args[0], args[1]);
var func = DelegateConverter.CompileFunc <Func <object, object, object, object> >(iface,
new[] { entryType, args[2] }, null, "Process");
var types = new Tuple <Type, Type>(args[0], args[1]);
_cacheEntryProcessor = new Tuple <Func <object, IMutableCacheEntryInternal, object, object>, Tuple <Type, Type> >
(func, types);
var transformerType = typeof(StreamTransformer <, , ,>).MakeGenericType(args);
_streamTransformerCtor = DelegateConverter.CompileCtor <Func <object, object> >(transformerType,
new[] { iface });
}
else if (genericTypeDefinition == typeof(IMessageListener <>))
{
ThrowIfMultipleInterfaces(_messageLsnr, type, typeof(IMessageListener <>));
var arg = iface.GetGenericArguments()[0];
_messageLsnr = DelegateConverter.CompileFunc <Func <object, Guid, object, bool> >(iface,
new[] { typeof(Guid), arg }, new[] { false, true, false });
}
else if (genericTypeDefinition == typeof(IComputeJob <>))
{
ThrowIfMultipleInterfaces(_messageLsnr, type, typeof(IComputeJob <>));
_computeJobExecute = DelegateConverter.CompileFunc <Func <object, object> >(iface, new Type[0],
methodName: "Execute");
_computeJobCancel = DelegateConverter.CompileFunc <Action <object> >(iface, new Type[0],
new[] { false }, "Cancel");
}
else if (genericTypeDefinition == typeof(IStreamReceiver <,>))
{
ThrowIfMultipleInterfaces(_streamReceiver, type, typeof(IStreamReceiver <,>));
var method =
typeof(StreamReceiverHolder).GetMethod("InvokeReceiver")
.MakeGenericMethod(iface.GetGenericArguments());
_streamReceiver = DelegateConverter
.CompileFunc <Action <object, Ignite, IUnmanagedTarget, IBinaryStream, bool> >(
typeof(StreamReceiverHolder),
method,
new[]
{
iface, typeof(Ignite), typeof(IUnmanagedTarget), typeof(IBinaryStream),
typeof(bool)
},
new[] { true, false, false, false, false, false });
}
else if (genericTypeDefinition == typeof(ICacheEntryEventFilter <,>))
{
ThrowIfMultipleInterfaces(_streamReceiver, type, typeof(ICacheEntryEventFilter <,>));
var args = iface.GetGenericArguments();
_continuousQueryFilterCtor =
DelegateConverter.CompileCtor <Func <object, object, object> >(
typeof(ContinuousQueryFilter <,>).MakeGenericType(args), new[] { iface, typeof(bool) });
}
}
}
