[racket] Implementing an generic interface outside of a struct definition

On 2013-09-06 15:46:20 +0200, Konrad Hinsen wrote:
> The reason for wanting to implement the methods separately is plain
> economy: I have five structures that can use a strictly identical
> implementation for gen:dict, and I want to write the code only once.

You can write the method implementations as plain function definitions
in some module, e.g.,

  (define (my-dict-ref ...) ...)
  ...
  (provide my-dict-ref ...)

and then in each structure you can do

  (struct particular-dict (...)
    #:methods
    [(define dict-ref my-dict-ref)
     ...])

to share the implementations.

Cheers,
Asumu