Error using associated types and generics

Question

The following code gives me an error on line return p.foo(self). The error says: \'P\' does not have a member named \'foo\'.

protocol P         


        

Answer 1

From The Swift Programming Language:

Protocols do not actually implement any functionality themselves. Nonetheless, any protocol you create will become a fully-fledged type for use in your code.

In order to use the .foo method, you need a struct or class that implements your protocol.