graphql-preview.rb in graphql-preview-0.0.7

- old
+ new

@@ -1,12 +1,22 @@
 require "graphql"
 require "graphql-preview/version"
 require "graphql-preview/schema_modification"
 require "graphql-preview/mask"
+require "graphql-preview/member_from_path"
 require "graphql-preview/extensions/enabled_previews"
 
 module GraphQLPreview
+  def self.visible?(member, context:)
+    return true unless member.respond_to?(:metadata)
+    return true unless member.metadata[:preview_toggled_by]
 
+    unless context.key?(:schema_previews)
+      raise ArgumentError, "[GraphQLPreview] `:schema_previews` was not provided to the `context`"
+    end
+
+    context[:schema_previews].include?(member.metadata[:preview_toggled_by].toggled_by)
+  end
 end
 
 module GraphQL
   Schema.class_eval do
     # To support `graphql-ruby`'s `.define` based API