Refactor configurator to use attributes concern

lib/kangaru/configurators/configurator.rb

@@ -1,6 +1,8 @@
 module Kangaru
   module Configurators
     class Configurator
+      include Concerns::AttributesConcern
+
       using Patches::Inflections
 
       def self.name
@@ -10,14 +12,8 @@ def self.name
             .to_sym
       end
 
-      def self.settings
-        @settings ||= instance_methods.grep(/\w=$/).map do |setting|
-          setting.to_s.delete_suffix("=").to_sym
-        end
-      end
-
       def serialise
-        self.class.settings.to_h do |setting|
+        self.class.attributes.to_h do |setting|
           [setting, send(setting)]
         end.compact
       end

sig/kangaru/configurators/configurator.rbs

@@ -1,12 +1,11 @@
 module Kangaru
   module Configurators
     class Configurator
-      self.@settings: Array[Symbol]
+      include Concerns::AttributesConcern
+      extend  Concerns::AttributesConcern::ClassMethods
 
       def self.name: -> Symbol
 
-      def self.settings: -> Array[Symbol]
-
       def serialise: -> Hash[Symbol, untyped]
     end
   end

spec/kangaru/configurators/configurator_spec.rb

@@ -13,32 +13,6 @@ def self.to_s = "FoobarConfigurator"
     end
   end
 
-  describe ".settings" do
-    subject(:settings) { configurator_class.settings }
-
-    context "when no attr_accessors are set" do
-      let(:configurator_class) do
-        Class.new(described_class)
-      end
-
-      it "returns an empty array" do
-        expect(settings).to be_empty
-      end
-    end
-
-    context "when attr_accessors are set" do
-      let(:configurator_class) do
-        Class.new(described_class) do
-          attr_accessor :foo, :bar, :baz
-        end
-      end
-
-      it "returns the expected settings" do
-        expect(settings).to contain_exactly(:foo, :bar, :baz)
-      end
-    end
-  end
-
   describe "#serialise" do
     subject(:hash) { configurator.serialise }