Monkey patching changes the behavior of class methods.
Ruby monkey patch class method.
Intro to monkey patching in ruby.
Motivated by the intent to patch existing third party code as a workaround to a bug or feature.
Due to ruby s open classes you can redefine or add functionality to existing classes.
2 monkey patched java methods are only available in ruby code.
You have to know where your monkey patches live.
This is called a monkey patch.
In ruby a monkey patch mp is any dynamic modification to a class and is often used as a synonym for dynamically modifying any class add new or overwrite existing methods at runtime.
So you have to have a way to quickly learn those changes when you jump into a new codebase.
3 aspects of this code are likely to change in the next release.
Pass dummy class x foo foo bar lambda self.
These classes methods are implemented in c and there are certain abstractions sacrificed in order to make the implementation easier and more efficient.
In the above class you are changing the behavior of the class method defined in the same program file.
There s no good reason to do this sort of patching because jruby marshals strings between java and ruby.
When you monkey patch core classes you add to the core ruby apis.
Unfortunately the scope of such changes is global.
In ruby the term monkey patch was misunderstood to mean any dynamic modification to a class and is often used as a synonym for dynamically modifying any class at runtime.
This can cause unintended side effects or breakage of programs.
I mostly follow rails monkey patching convention.
Ruby has a very beautiful syntax and so it can be tempting to monkey patch a class to turn some ugly method call into something that is more readable.
All users of the monkey patched class see the same changes.
42 print x bar but you can t do this for certain built in classes like int or float.
The above statement asserts that the ruby usage is incorrect but terms evolve and that s not always a bad thing.
Or perhaps you need to monkey patch a class you own.
Patches go into lib core.
So the behavior of the class monkey is changed dynamically.
We are assigning a new method name patchfunc to the existing class method name monkeyfunc.
The linking of a new method to the existing class method name happens at runtime.
