Created
July 9, 2024 12:48
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| class DynamicProxy | |
| def initialize(subject) | |
| @subject = subject | |
| end | |
| def method_missing(method_name, *args, &block) | |
| if @subject.respond_to?(method_name) | |
| @subject.send(method_name, *args, &block) | |
| else | |
| super | |
| end | |
| end | |
| def respond_to_missing?(method_name, include_private = false) | |
| @subject.respond_to?(method_name, include_private) || super | |
| end | |
| end | |
| class RealSubject | |
| def existing_method | |
| "This method exists!" | |
| end | |
| end | |
| real_object = RealSubject.new | |
| proxy = DynamicProxy.new(real_object) | |
| puts proxy.existing_method # Outputs: "This method exists!" | |
| puts proxy.non_existing_method # Raises NoMethodError (trick to handle) |
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