What are some examples of metaprogramming?
Metaprogramming is a programming technique where programs have the ability to treat other programs as their data. Examples include Ruby's method_missing
, Python's decorators, and C++ templates.
Can you explain how Ruby's method_missing
works?
Sure! In Ruby, method_missing
is a method that gets called when an object receives a message it can't handle. You can override it to define dynamic behavior for undefined methods.
What about Python decorators? How do they relate to metaprogramming?
Python decorators are a way to modify or enhance functions or methods. They allow you to wrap another function, adding functionality before or after the original function runs.
Are there any performance concerns with metaprogramming?
Yes, metaprogramming can introduce overhead and complexity, which may impact performance. It's important to use it judiciously.
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