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Is there a performance difference at all between importing an entire namespace versus using aliasing to import only one class? If so, how much of a difference is it?
Examples:
Importing an entire namespace:
using System.Reflection;
Aliasing to import only one class:
using BindingFlags = System.Reflection.BindingFlags;
Zero. Namespace imports are a compile-time feature and the generated IL will be exactly the same either way.