lib/neo/dci/context.rb in neo-dci-0.2.0 vs lib/neo/dci/context.rb in neo-dci-0.3.0

@@ -1,27 +1,38 @@
+require 'on'
+
 module Neo
   module DCI
     class Context
-
       class << self
         private :new
       end
 
+      attr_accessor :callback
+
+      def self.callbacks(*args)
+        @callbacks ||= []
+        @callbacks = args unless args.empty?
+        @callbacks
+      end
+
       def self.call(*args, &block)
-        context = new(*args, &block)
-        result  = ContextResult.new
-        context.call(result)
-        raise UnprocessedError unless result.processed?
-        result
+        context = new(*args)
+        context.callback = On.new(*callbacks, &block)
+        context.call
+        raise NoCallbackCalled, callbacks unless context.callback.callback
       rescue NotImplementedError
         raise
       end
 
-
-      def call(result)
+      def call
         raise NotImplementedError
       end
 
-      class UnprocessedError < StandardError; end
+      class NoCallbackCalled < StandardError
+        def initialize(callbacks)
+          super("No callback called. Available callbacks: #{callbacks.join(', ')}")
+        end
+      end
     end
   end
 end