How can you use method_missing to create a dynamic proxy that logs all method calls and forwards them to an internal object?

hard📝 Application Q8 of 15

Ruby - Metaprogramming Fundamentals

How can you use method_missing to create a dynamic proxy that logs all method calls and forwards them to an internal object?

ADefine <code>method_missing</code> to ignore all calls silently.

BOverride all methods manually instead of using method_missing.

CUse <code>method_missing</code> to raise errors for all calls.

DDefine <code>method_missing</code> to log the call, then use <code>send</code> to forward to the internal object.

Step-by-Step Solution

Solution:

Step 1: Understand dynamic proxy pattern
A proxy intercepts calls, logs them, then forwards to the real object.
Step 2: Use method_missing for catch-all
Implement method_missing to log method name and args, then call send on internal object.
Final Answer:
Define method_missing to log the call, then use send to forward to the internal object. -> Option D
Quick Check:
method_missing + send = dynamic proxy with logging [OK]

Quick Trick: Use method_missing + send to forward calls dynamically [OK]

Common Mistakes:

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