Move nested types as value members when resolving data structures

src/drafter.coffee

@@ -174,8 +174,9 @@ class Drafter
   # @param node [Object] A node of API Blueprint
   # @param rules [Array] List of rules to apply
   # @param elementTye [String] The element type of the node
-  # @param parent [Object] Parent node's content of which the current node is a part of
-  expandNode: (node, rules, elementType, parentContent) ->
+  # @param parentContent [Object] Parent node's content of which the current node is a part of
+  # @param parentElementType [String] The element type of the parent node
+  expandNode: (node, rules, elementType, parentContent, parentElementType) ->
     elementType ?= node.element
 
     # On root node, Gather data structures first before applying rules to any of the children nodes
@@ -219,7 +220,7 @@ class Drafter
       rule[elementType].call rule, newNode if elementType in Object.keys(rule)
 
     # Append resolved data structures
-    if elementType is 'dataStructure' and not deepEqual node, newNode
+    if parentElementType not in ['resource', 'blueprint'] and elementType is 'dataStructure' and not deepEqual node, newNode
       newNode.element = 'resolvedDataStructure'
       parentContent.push newNode
 
@@ -236,7 +237,7 @@ class Drafter
         @expandNode response, rules, 'payload' for response in node.responses
 
     if node.content and Array.isArray node.content
-      @expandNode element, rules, null, node.content for element in node.content
+      @expandNode element, rules, null, node.content, elementType for element in node.content
 
   # Reconstruct deprecated resource groups key from elements
   #

src/rules/mson-inheritance.coffee

@@ -28,6 +28,41 @@ module.exports =
     # Check for inheritance
     superType = dataStructure.typeDefinition.typeSpecification.name
 
+    # If super type is array and if it has nested type, append them as value members only if there are no value members
+    if superType is 'array'
+      nestedTypes = dataStructure.typeDefinition.typeSpecification.nestedTypes
+      valueMembersExist = false
+
+      for section in dataStructure.sections
+        if section['class'] is 'memberType'
+          valueMembersExist = true
+
+      if not valueMembersExist and nestedTypes.length
+        memberTypeSection =
+          content: []
+
+        memberTypeSection['class'] = 'memberType'
+
+        for nestedType in nestedTypes
+          valueMember =
+            content:
+              description: ''
+              valueDefinition:
+                values: []
+                typeDefinition:
+                  typeSpecification:
+                    name: nestedType,
+                    nestedTypes: []
+                  attributes: []
+              sections: []
+
+          valueMember['class'] = 'value'
+          memberTypeSection.content.push valueMember
+
+        # Push the value members
+        dataStructure.sections.push memberTypeSection
+        dataStructure.typeDefinition.typeSpecification.nestedTypes = []
+
     if superType is null or typeof superType isnt 'object' or not superType?.literal
       return @expanded[superType] = true