Here is a list of all the hook methods in Ruby. This list is taken from the screencast Some Hook Methods in the The Ruby Object Model and Metaprogramming series.
Method-related Hooks
- method_missing
- method_added
- singleton_method_added
- method_removed
- singleton_method_removed
- method_undefined
- singleton_method_undefined
Class & Module Hooks
- inherited
- append_features
- included
- extend_object
- extended
- initialize_copy
- const_missing
Marshalling Hooks
- marshal_dump
- marshal_load
Coercion Hooks
- coerce
- induced_from
- to_xxx
