Ruby Monkey Patch Super

Max spends plenty of time in his super hero outfit.

Ruby monkey patch super. Ruby s open classes are powerful but can easily be misused. The knowledge gained from this adventure was totally worth it. Subscribe to treehouse direct for new clips episodes and more. Although i did not create a library i would expect people to use i learned a lot about how ruby works and had a great time solving the problem.

Ruby inheritance doesn t work that way. This article looks at how to minimize the risk of opening classes alternatives and how other languages provide similar capabilities. Unfortunately the scope of such changes is global. Grandma s berry patch backshall ruby wants to pick lots of berries from grandma s berry patch so grandma can make her surprise berry recipe.

But with prepend you can override a method in a class with a method from a module and still access the class s implementation with super. Therefore a monkey patch might break code which doesn t expect the extended behavior and multiple monkey patches for the same class might cause conflicts to solve these problems refinements provide a way to extend classes locally. To check out the full results please visit my github profile. This module is based on the wonderful monkey patch by paul driver.

All users of the monkey patched class see the same changes. What changed in ruby 2 0. Deprecation warnings and other warnings in ruby have a category deprecated etc but those categories aren t exposed or accessible. Due to ruby s open classes you can redefine or add functionality to existing classes.

This module adds the ability to add replace delete subroutines instead of just wrapping them. Until ruby 2 0 there was no way to add code below a class only above it. Monkey patching is a powerful feature of ruby however it affects globally in a program. This can cause unintended side effects or breakage of programs.

Watch as he helps ruby and friends. This is called a monkey patch.