Implement performance efficient way to iterate through declarations of attributes for complete class hierarchy, properties, ivars and methods.

Implement performance efficient way to get declarations of attributes for complete class hierarchy, properties, ivars and methods.
Real-life example is to find some attribute like DependencyInjection declared like following RF_ATTRIBUTE(DependencyInjection, name=@"something") for class all over the hierarchy to process if further in dependency container method inject,