lib/dry/logic/rule/check.rb in dry-logic-0.1.2 vs lib/dry/logic/rule/check.rb in dry-logic-0.1.3

@@ -1,11 +1,28 @@
 module Dry
   module Logic
     class Rule::Check < Rule
-      alias_method :result, :predicate
+      attr_reader :keys
 
-      def call(*args)
-        Logic.Result(nil, result.(*args), self)
+      class Unary < Rule::Check
+        def evaluate_input(*)
+          predicate.input
+        end
+      end
+
+      class Binary < Rule::Check
+        def evaluate_input(result)
+          keys.map { |key| result[key].input }
+        end
+      end
+
+      def initialize(name, predicate, keys)
+        super(name, predicate)
+        @keys = keys
+      end
+
+      def call(result)
+        Logic.Result(evaluate_input(result), predicate.(result), self)
       end
 
       def type
         :check
       end