registry.rb in multicodecs-1.0.0

- old
+ new

@@ -11,11 +11,32 @@
   # rubocop:disable Style/MutableConstant
   REGISTRATIONS = {}
   REGISTRATIONS_PER_TAG = AutoHashCollection.new
   # rubocop:enable Style/MutableConstant
 
-  Registration = Struct.new(:code, :name, :tag) do
+  class Registration
+    STATUS_DRAFT = 'draft'
+    STATUS_PERMANENT = 'permanent'
+
+    attr_reader :code, :tag, :name, :status, :description
+
+    def initialize(code:, name:, tag:, status:, description:)
+      self.code = code
+      self.name = name
+      self.tag = tag
+      self.status = status
+      self.description = description
+    end
+
+    def permanent?
+      status == STATUS_PERMANENT
+    end
+
+    def draft?
+      status == STATUS_DRAFT
+    end
+
     def hash
       name.hash
     end
 
     def ==(other)
@@ -26,20 +47,32 @@
     end
 
     def eql?(other)
       other.is_a?(Registration) && other.name == name
     end
+
+    def to_s
+      "0x#{code.to_s(16)}"
+    end
+
+    def inspect
+      "#{to_s} #{name} (#{tag}/#{status}): #{description || '(no description)'}"
+    end
+
+    private
+
+    attr_writer :code, :tag, :name, :status, :description
   end
 
   module_function
 
   def [](entry)
     find_by(code: entry, name: entry)
   end
 
-  def register(code:, name:, tag:)
-    Registration.new(code, name, tag).tap do |registration|
+  def register(name:, tag:, **kwargs)
+    Registration.new(name: name, tag: tag, **kwargs).tap do |registration|
       Multicodecs::REGISTRATIONS[name] = registration
       Multicodecs::REGISTRATIONS_PER_TAG[tag] << registration
     end
   end
 
@@ -48,9 +81,11 @@
 
     Multicodecs.find_by(code: code).tap do |found|
       raise KeyError, "No codec has code #{code}" unless found
     end
   end
+
+  alias find_by! fetch_by!
 
   def find_by(code: nil, name: nil)
     Multicodecs::REGISTRATIONS.values.find do |v|
       v == code || v == name
     end