lib/mutant/matcher/config.rb in mutant-0.8.0 vs lib/mutant/matcher/config.rb in mutant-0.8.1

@@ -1,27 +1,87 @@
 module Mutant
   class Matcher
-    # Match configuration
+    # Subject matcher configuration
     class Config
       include Adamantium, Anima::Update, Anima.new(
         :match_expressions,
-        :subject_ignores,
-        :subject_selects
+        :ignore_expressions,
+        :subject_filters
       )
 
+      INSPECT_FORMAT      = "#<#{self} %s>".freeze
+      ATTRIBUTE_DELIMITER = ' '.freeze
+      ATTRIBUTE_FORMAT    = '%s: [%s]'.freeze
+      ENUM_DELIMITER      = ','.freeze
+      EMPTY_ATTRIBUTES    = 'empty'.freeze
+      PRESENTATIONS       = IceNine.deep_freeze(
+        match_expressions:  :syntax,
+        ignore_expressions: :syntax,
+        subject_filters:    :inspect
+      )
+      private_constant(*constants(false))
+
       DEFAULT = new(Hash[anima.attribute_names.map { |name| [name, []] }])
 
-      # Return configuration with added value
+      # Inspection string
       #
+      # @return [String]
+      #
+      # @api private
+      def inspect
+        INSPECT_FORMAT % inspect_attributes
+      end
+      memoize :inspect
+
+      # Add value to configurable collection
+      #
       # @param [Symbol] attribute
       # @param [Object] value
       #
       # @return [Config]
       #
       # @api private
-      #
       def add(attribute, value)
         update(attribute => public_send(attribute).dup << value)
+      end
+
+    private
+
+      # Present attributes
+      #
+      # @return [Array<Symbol>]
+      #
+      # @api private
+      def present_attributes
+        to_h.reject { |_key, value| value.empty? }.keys
+      end
+
+      # Formatted attributes
+      #
+      # @return [String]
+      #
+      # @api private
+      def inspect_attributes
+        attributes = present_attributes
+          .map(&method(:format_attribute))
+          .join(ATTRIBUTE_DELIMITER)
+
+        attributes.empty? ? EMPTY_ATTRIBUTES : attributes
+      end
+
+      # Format attribute
+      #
+      # @param [Symbol] attribute_name
+      #
+      # @return [String]
+      def format_attribute(attribute_name)
+        ATTRIBUTE_FORMAT %
+          [
+            attribute_name,
+            public_send(attribute_name)
+              .map(&PRESENTATIONS.fetch(attribute_name))
+              .join(ENUM_DELIMITER)
+          ]
       end
 
     end # Config
   end # Matcher
 end # Mutant