Add DependentSchemas schema field

Based on: https://datatracker.ietf.org/doc/html/draft-bhutton-json-schema-00#section-10.2.2.4

Author: kevindew

json-schema-for-3.1.md

@@ -79,7 +79,7 @@ not - schema - in 3.0
 if - single schema - done
 then - single schema - done
 else - single schema - done
-dependentSchemas - map of schemas - somewhat complex, is it related to dependentRequired ?
+dependentSchemas - map of schemas - done
 
 prefixItems: array of schema - done
 items: array of schema - in 3.0

lib/openapi3_parser/node/schema/v3_1.rb

@@ -85,6 +85,11 @@ def else
           self["else"]
         end
 
+        # @return [Node::Map<String, Schema>]
+        def dependent_schemas
+          self["dependentSchemas"]
+        end
+
         # @return [Node::Array<Schema>]
         def prefix_items
           self["prefixItems"]

lib/openapi3_parser/node_factory/schema/common.rb

@@ -32,7 +32,7 @@ def self.included(base)
           base.field "anyOf", factory: :referenceable_schema_array
           base.field "not", factory: :referenceable_schema
           base.field "items", factory: :referenceable_schema
-          base.field "properties", factory: :properties_factory
+          base.field "properties", factory: :schema_map_factory
           base.field "additionalProperties",
                      validate: :additional_properties_input_type,
                      factory: :additional_properties_factory,
@@ -88,7 +88,7 @@ def external_docs_factory(context)
           NodeFactory::ExternalDocumentation.new(context)
         end
 
-        def properties_factory(context)
+        def schema_map_factory(context)
           NodeFactory::Map.new(
             context,
             value_factory: NodeFactory::Schema.factory(context)

lib/openapi3_parser/node_factory/schema/v3_1.rb

@@ -34,9 +34,10 @@ class V3_1 < NodeFactory::Object # rubocop:disable Naming/ClassAndModuleCamelCas
         field "if", factory: :referenceable_schema
         field "then", factory: :referenceable_schema
         field "else", factory: :referenceable_schema
+        field "dependentSchemas", factory: :schema_map_factory
         field "prefixItems", factory: :prefix_items_factory
         field "contains", factory: :referenceable_schema
-        field "patternProperties", factory: :pattern_properties_factory
+        field "patternProperties", factory: :schema_map_factory
 
         def build_node(data, node_context)
           Node::Schema::V3_1.new(data, node_context)
@@ -100,13 +101,6 @@ def prefix_items_factory(context)
             value_factory: NodeFactory::Schema.factory(context)
           )
         end
-
-        def pattern_properties_factory(context)
-          NodeFactory::Map.new(
-            context,
-            value_factory: NodeFactory::Schema.factory(context)
-          )
-        end
       end
     end
   end

spec/support/examples/v3.1/changes.yaml

@@ -93,6 +93,22 @@ components:
       dependentRequired:
         credit_card:
           - billing_address
+    DependentSchemas:
+      type: object
+      properties:
+        name:
+          type: string
+        credit_card:
+          type: number
+      required:
+        - name
+      dependentSchemas:
+        credit_card:
+          properties:
+            billing_address:
+              type: string
+          required:
+            - billing_address
     Number:
       type: integer
       multipleOf: 5