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imp_implementationforwardingtoselector

Overview

This page provides documentation for the imp_implementationForwardingToSelector method found in the imp framework.

Method Information

The imp_implementationForwardingToSelector method is a part of the imp framework, and it is used to dynamically forward method invocations to a different selector.

Usage

When implementing dynamic method forwarding, you can use the imp_implementationForwardingToSelector method to redirect method invocations to a specific selector. This can be useful in scenarios where you need to change the behavior of a method dynamically without modifying the class implementation directly.

To use the imp_implementationForwardingToSelector method, you need to:

  • Declare the target selector.
  • Implement the forwarding method.
  • Invoke the imp_implementationForwardingToSelector method to redirect method invocations.

Example

Here’s an example that demonstrates how to use the imp_implementationForwardingToSelector method:

SEL originalSelector = @selector(originalMethod);
SEL forwardingSelector = @selector(forwardingMethod);

// Implement the forwarding method
void forwardingMethod(id self, SEL _cmd) {
    // Implement the dynamic behavior here
}

// Redirect invocations from originalSelector to forwardingSelector
Class class = [TargetClass class];
Method originalMethod = class_getInstanceMethod(class, originalSelector);
implementingMethod = imp_implementationForwardingToSelector(forwardingSelector, originalMethod);

class_replaceMethod(class, originalSelector, implementingMethod, method_getTypeEncoding(originalMethod));

Conclusion

The imp_implementationForwardingToSelector method provides a way to dynamically forward method invocations to a different selector. You can use this method to modify the behavior of a method at runtime without modifying the class implementation directly.