/// <summary>
/// Gets the metadata associated with a specific contract method
/// </summary>
public List <object> GetMetadata(MethodInfo method)
{
// consider the various possible sources of distinct metadata
object[]
contractType = ContractType.GetCustomAttributes(inherit: true),
contractMethod = method.GetCustomAttributes(inherit: true),
serviceType = Array.Empty <object>(),
serviceMethod = Array.Empty <object>();
if (ContractType != ServiceType & ContractType.IsInterface & ServiceType.IsClass)
{
serviceType = ServiceType.GetCustomAttributes(inherit: true);
serviceMethod = GetImplementation(method)?.GetCustomAttributes(inherit: true)
?? Array.Empty <object>();
}
// note: later is higher priority in the code that consumes this, but
// GetAttributes() is "most derived to least derived", so: add everything
// backwards, then reverse
var metadata = new List <object>(
contractType.Length + contractMethod.Length +
serviceType.Length + serviceMethod.Length);
metadata.AddRange(serviceMethod);
metadata.AddRange(serviceType);
metadata.AddRange(contractMethod);
metadata.AddRange(contractType);
metadata.Reverse();
return(metadata);
}