lib/nanoc/base/repos/dependency_store.rb in nanoc-4.8.5 vs lib/nanoc/base/repos/dependency_store.rb in nanoc-4.8.6

@@ -3,12 +3,12 @@
 module Nanoc::Int
   # @api private
   class DependencyStore < ::Nanoc::Int::Store
     include Nanoc::Int::ContractsSupport
 
-    attr_accessor :items
-    attr_accessor :layouts
+    attr_reader :items
+    attr_reader :layouts
 
     contract Nanoc::Int::ItemCollection, Nanoc::Int::LayoutCollection, Nanoc::Int::Configuration, C::KeywordArgs[site: C::Optional[C::Maybe[Nanoc::Int::Site]]] => C::Any
     def initialize(items, layouts, config, site: nil)
       super(Nanoc::Int::Store.tmp_path_for(site: site, store_name: 'dependencies'), 5)
 
@@ -138,10 +138,10 @@
     end
 
     protected
 
     def obj2ref(obj)
-      obj && obj.reference
+      obj&.reference
     end
 
     def ref2obj(reference)
       if reference
         @refs2objs[reference]