/// <summary>
/// Returns a collection of attributes that are defined on the <paramref name="methodInfo"/> as well as any
/// underlying interface definitions.
/// </summary>
/// <param name="methodInfo">The <see cref="MethodInfo"/> to return attributes for.</param>
/// <returns>A collection of attributes.</returns>
private static AttributeCollection GetAttributeCollection(MethodInfo methodInfo)
{
// Get all of the attributes defined on the MethodInfo
List <Attribute> attributes = new List <Attribute>(methodInfo.GetCustomAttributes(true).Cast <Attribute>());
// Filter out AsyncStateMachineAttribute for "async" methods
attributes.RemoveAll(a => a.GetType().FullName == "System.Runtime.CompilerServices.AsyncStateMachineAttribute");
// Examine interfaces on the type and try to find matching method implmentations.
foreach (Type interfaceType in methodInfo.DeclaringType.GetInterfaces())
{
InterfaceMapping interfaceMapping = methodInfo.DeclaringType.GetInterfaceMap(interfaceType);
for (int i = 0; i < interfaceMapping.TargetMethods.Length; ++i)
{
if (interfaceMapping.TargetMethods[i].MethodHandle == methodInfo.MethodHandle)
{
// Merge method attributes with those found on the interface method definition
ReflectionDomainOperationEntry.MergeAttributes(
attributes,
interfaceMapping.InterfaceMethods[i].GetCustomAttributes(true).Cast <Attribute>());
break;
}
}
}
return(new AttributeCollection(attributes.ToArray()));
}
