lib/nina.rb in nina-0.1.6 vs lib/nina.rb in nina-0.2.0

@@ -1,10 +1,8 @@
 # frozen_string_literal: true
 
 require 'toritori'
-require 'observer'
-require 'nina/assembler'
 require 'nina/builder'
 
 require_relative 'nina/version'
 
 # Module that provides DSL for builders
@@ -49,11 +47,11 @@
 
   def self.included(receiver)
     receiver.extend ClassMethods
   end
 
-  def self.def_accessor(accessor, on:, to:, delegate: false)
+  def self.def_reader(accessor, on:, to:, delegate: false)
     on.define_singleton_method(accessor) { to }
     on.define_singleton_method(:predecessor) { to }
     def on.predecessors
       Enumerator.new do |y|
         obj = self
@@ -63,13 +61,23 @@
     return unless delegate
 
     on.extend(MethodMissingDelegation)
   end
 
-  def self.linked_list(build_config, delegate: false)
-    build_order = build_config.keys
-    build_config.each.with_index(-1).inject(nil) do |prev, ((_, object), idx)|
-      Nina.def_accessor(build_order[idx], on: object, to: prev, delegate: delegate) if prev
+  def self.link(build, delegate: false, &block)
+    result = nil
+    build.each.inject(nil) do |prev, (name, object)|
+      Nina.def_reader(name, on: prev, to: object, delegate: delegate) if prev
+      yield(name, object) if block
+      object.tap { |o| result ||= o }
+    end
+    result
+  end
+
+  def self.reverse_link(build, delegate: false, &block)
+    build.each.with_index(-1).inject(nil) do |prev, ((name, object), idx)|
+      Nina.def_reader(build.keys[idx], on: object, to: prev, delegate: delegate) if prev
+      yield(name, object) if block
       object
     end
   end
 end