hashable

The hashable package defines Hashable, a base struct whose to_hash() method returns an instance’s variables as a hashmap. Inherit from it to make a struct easy to serialize or log.

struct Config < Hashable
  fn new(host, port)
    @host = host
    @port = port
  end
end

println Config.new("localhost", 8080).to_hash()   # {"host": "localhost", "port": 8080}

Hashable struct

When inherited, structs receive a to_hash() function that returns their instance variables as a hashmap.

.to_hash

to_hash(): hashmap

Returns instance variables as a hashmap.

Returns hashmap — Returns a hashmap containing instance variables as key-value pairs.