lib/nanoc/base/entities/identifiable_collection.rb in nanoc-4.6.1 vs lib/nanoc/base/entities/identifiable_collection.rb in nanoc-4.6.2

@@ -6,18 +6,19 @@
 
     extend Forwardable
 
     def_delegator :@objects, :each
     def_delegator :@objects, :size
-    def_delegator :@objects, :<<
-    def_delegator :@objects, :concat
 
-    contract C::Or[Hash, C::Named['Nanoc::Int::Configuration']] => C::Any
-    def initialize(config)
+    contract C::Or[Hash, C::Named['Nanoc::Int::Configuration']], C::IterOf[C::RespondTo[:identifier]] => C::Any
+    def initialize(config, objects = [])
       @config = config
+      @objects = objects
+    end
 
-      @objects = []
+    def self.from(enum, config)
+      new(config, enum)
     end
 
     contract C::None => self
     def freeze
       @objects.freeze
@@ -48,13 +49,15 @@
     contract C::None => C::Bool
     def empty?
       @objects.empty?
     end
 
-    contract C::Func[C::RespondTo[:identifier] => C::Bool] => self
-    def delete_if(&block)
-      @objects.delete_if(&block)
-      self
+    def add(obj)
+      self.class.new(@config, @objects + [obj])
+    end
+
+    def reject(&block)
+      self.class.new(@config, @objects.reject(&block))
     end
 
     protected
 
     def object_with_identifier(identifier)