Objective C

Intro

1. History
2. Language Comparison
3. Language Comparison (2)
4. Types / Typing
5. Classes (intro)
6. Messages
7. Selectors


8. Classes
1. Inheritance
2. Protocols
3. Categories
9. Forwarding
10. NSObject
11. Code Conventions

References

Selectors

• Every message is identified by a selector
• Messages/Selectors uniquely identified by selector name and argument names
• foo, foo:, foo::, foo:bar:, foo:baz: are all different
• Name Mangling
  • Instance method named -do:with in class MyClass
  • _i_MyClass__do_with_
• perform: is a message to send a selector(message)
• @selector(message) retrieves the selector of a message
• [myObject perform:@selector(close)] is equivalent to [myObject close]