Merge 9570503 into 5a7158e

Gemfile

@@ -7,4 +7,4 @@ gem 'byebug'
 gem 'coveralls_reborn', '~> 0.11'
 gem 'wwtd'
 gem 'ur', github: 'notEthan/ur', ref: 'fa495042596eb9cec4ff361bfb764f516174558a'
-gem 'jsi', github: 'notEthan/jsi', ref: '9b4bd0f15f2fe8c2135ffa78a9e1af316300da3b'
+gem 'jsi', github: 'notEthan/jsi', ref: '27a73cca8384b0386cac14ef41474869d971aac1'

lib/scorpio/openapi/operations_scope.rb

@@ -7,6 +7,7 @@ class OperationsScope
 
       # @param openapi_document [Scorpio::OpenAPI::Document]
       def initialize(openapi_document)
+        jsi_initialize_memos
         @openapi_document = openapi_document
       end
       attr_reader :openapi_document

lib/scorpio/openapi/reference.rb

@@ -14,6 +14,28 @@ def [](token, *a, &b)
         end
         return super
       end
+
+      def deref
+        return unless respond_to?(:to_hash) && self['$ref'].respond_to?(:to_str)
+
+        ref_uri = Addressable::URI.parse(self['$ref'])
+        ref_uri_nofrag = ref_uri.merge(fragment: nil)
+
+        if !ref_uri_nofrag.empty? || ref_uri.fragment.nil?
+          raise(NotImplementedError,
+            "Scorpio currently only supports fragment URIs as OpenAPI references. cannot find reference by uri: #{self['$ref']}"
+          )
+        end
+
+        ptr = JSI::JSON::Pointer.from_fragment(ref_uri.fragment)
+        deref_jsi = ptr.evaluate(jsi_root_node)
+
+        # TODO type check deref_jsi
+
+        yield deref_jsi
+
+        nil
+      end
     end
   end
 end