|
public static TypeIsParameterlessDelegate ( |
||
| type | ||
| return | bool | |
private ActionDescriptorCreator GetActionDescriptorDelegate(MethodInfo entryMethod)
{
// Is this the BeginFoo() / EndFoo() pattern?
if (entryMethod.Name.StartsWith("Begin", StringComparison.OrdinalIgnoreCase))
{
string endMethodName = "End" + entryMethod.Name.Substring("Begin".Length);
MethodInfo endMethod = GetMethodByName(endMethodName);
if (endMethod == null)
{
string errorMessage = String.Format(CultureInfo.CurrentUICulture, MvcResources.ActionMethodSelector_CouldNotFindMethod, endMethodName, ControllerType.FullName);
throw new InvalidOperationException(errorMessage);
}
return((actionName, controllerDescriptor) => new ReflectedAsyncPatternActionDescriptor(entryMethod, endMethod, actionName, controllerDescriptor));
}
// Is this the Foo() / FooCompleted() pattern?
{
string completionMethodName = entryMethod.Name + "Completed";
MethodInfo completionMethod = GetMethodByName(completionMethodName);
if (completionMethod != null)
{
return((actionName, controllerDescriptor) => new ReflectedEventPatternActionDescriptor(entryMethod, completionMethod, actionName, controllerDescriptor));
}
}
// Does Foo() return a delegate that represents the continuation?
if (TypeHelpers.TypeIsParameterlessDelegate(entryMethod.ReturnType))
{
return((actionName, controllerDescriptor) => new ReflectedDelegatePatternActionDescriptor(entryMethod, actionName, controllerDescriptor));
}
// Fallback to synchronous method
return((actionName, controllerDescriptor) => new ReflectedActionDescriptor(entryMethod, actionName, controllerDescriptor));
}
private static void ValidateActionMethod(MethodInfo actionMethod)
{
if (actionMethod == null)
{
throw new ArgumentNullException("actionMethod");
}
else
{
if (!TypeHelpers.TypeIsParameterlessDelegate(actionMethod.ReturnType))
{
string message = String.Format(CultureInfo.CurrentUICulture,
MvcResources.ReflectedDelegatePatternActionDescriptor_MethodHasWrongReturnType, actionMethod);
throw new ArgumentException(message, "actionMethod");
}
}
}
