lib/nanoc3/base/source_data/layout.rb in nanoc3-3.2.0a4 vs lib/nanoc3/base/source_data/layout.rb in nanoc3-3.2.0b1

@@ -83,16 +83,43 @@
 
     def inspect
       "<#{self.class}:0x#{self.object_id.to_s(16)} identifier=#{self.identifier}>"
     end
 
-    # TODO document
+    # @return [String] The checksum for this object. If its contents change,
+    #   the checksum will change as well.
     def checksum
       attributes = @attributes.dup
       attributes.delete(:file)
       @raw_content.checksum + ',' + attributes.checksum
     end
     memoize :checksum
+
+    def hash
+      self.class.hash ^ self.identifier.hash
+    end
+
+    def eql?(other)
+      self.class == other.class && self.identifier == other.identifier
+    end
+
+    def ==(other)
+      self.eql?(other)
+    end
+
+    def marshal_dump
+      [
+        @raw_content,
+        @attributes,
+        @identifier
+      ]
+    end
+
+    def marshal_load(source)
+      @raw_content,
+      @attributes,
+      @identifier = *source
+    end
 
     # @deprecated Access the modification time using `layout[:mtime]` instead.
     def mtime
       self[:mtime]
     end