public override PolicyMethodBinding BindMethod(
MethodRule rule, MethodDispatch dispatch,
DefinitionAttribute attribute)
{
var binding = base.BindMethod(rule, dispatch, attribute);
InferVariance(binding);
return(binding);
}
protected MethodBinding(MethodDispatch dispatch)
{
if (dispatch == null)
{
throw new ArgumentNullException(nameof(dispatch));
}
Dispatcher = dispatch;
AddFilters(FilterAttribute.GetFilters(Dispatcher.Method));
}
private object GetCallbackInfo(object callback, object[] args,
MethodDispatch dispatcher, out Type callbackType)
{
if (CallbackIndex.HasValue)
{
var index = CallbackIndex.Value;
callbackType = dispatcher.Parameters[index].ParameterType;
return(args[index]);
}
callbackType = callback.GetType();
return(callback);
}
public PolicyMethodBinding Bind(MethodDispatch dispatch, DefinitionAttribute attribute)
{
var binding = _binder(this, dispatch, attribute);
_returnValue?.Configure(binding);
var parameters = dispatch.Method.GetParameters();
for (var i = 0; i < parameters.Length; ++i)
{
_args[i].Configure(parameters[i], binding);
}
return(binding);
}
public PolicyMethodBinding(MethodRule rule,
MethodDispatch dispatch,
DefinitionAttribute attribute,
CallbackPolicy policy)
: base(dispatch)
{
if (rule == null)
{
throw new ArgumentNullException(nameof(rule));
}
if (dispatch == null)
{
throw new ArgumentNullException(nameof(dispatch));
}
Rule = rule;
Attribute = attribute;
Policy = policy;
}
public HandlerDescriptor(Type type)
{
foreach (var method in type.GetMethods(Binding))
{
MethodDispatch dispatch = null;
if (method.IsSpecialName || method.IsFamily ||
method.DeclaringType == typeof(object))
{
continue;
}
var attributes = (DefinitionAttribute[])
Attribute.GetCustomAttributes(method, typeof(DefinitionAttribute), false);
foreach (var attribute in attributes)
{
var policy = attribute.CallbackPolicy;
var rule = policy.MatchMethod(method, attribute);
if (rule == null)
{
throw new InvalidOperationException(
$"The policy for {attribute.GetType().FullName} rejected method '{method.GetDescription()}'");
}
dispatch = dispatch ?? new MethodDispatch(method);
var binding = rule.Bind(dispatch, attribute);
if (_methods == null)
{
_methods = new Dictionary <CallbackPolicy, PolicyMethods>();
}
PolicyMethods methods;
if (!_methods.TryGetValue(policy, out methods))
{
methods = new PolicyMethods();
_methods.Add(policy, methods);
}
methods.Insert(binding);
}
}
}
public HandleMethodBinding(MethodDispatch dispatch)
: base(dispatch)
{
}
public virtual PolicyMethodBinding BindMethod(MethodRule rule,
MethodDispatch dispatch, DefinitionAttribute attribute)
{
return(Binder?.Invoke(rule, dispatch, attribute, this)
?? new PolicyMethodBinding(rule, dispatch, attribute, this));
}
