All I'd Wanted To Know About Ruby's Object Model Starting Out...And Mooar!!!
summary
Step-by-step reverse engineering of CRuby shows that all Ruby values are pointers to three C structs—RBasic RObject RClass—with a flags field, a class pointer, a superclass pointer and a method table pointer; bootstrapping runs init_vm_object then init_class_hierarchy; defining a class calls rb_define_class_id which sets super, initializes the RClass and calls make_metaclass to create singleton/metaclasses; modules become inserted as include classes that share the module’s method table; comparison to Python highlights a single metaclass type and the descriptor protocol.
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chapters (11)
- 0:00Start
- 1:56What Does It Like To Be a Beginner Learning Ruby
- 14:06Singleton Class
- 14:44Meta Class Creation
- 18:01Set the Superclass of the Metaclass
- 18:43Make a Singleton Class
- 19:37Modules
- 21:15Including Multiple Modules
- 23:34Differences between the C Class and Super Pointers and the Ruby Class and Super Class Methods
- 31:10Questions
- 31:51The Ruby Hacking Guide
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