class Aws::Xml::Parser::StructureFrame

def apply_default_value(name, ref)
  case ref.shape
  when ListShape then @result[name] = DefaultList.new
  when MapShape then @result[name] = DefaultMap.new
  end
end

def child_frame(xml_name)
  if @member = @members[xml_name]
    Frame.new(xml_name, self, @member[:ref])
  else
    NullFrame.new(xml_name, self)
  end
end

def consume_child_frame(child)
  case child
  when MapEntryFrame
    @result[@member[:name]][child.key.result] = child.value.result
  when FlatListFrame
    @result[@member[:name]] << child.result
  when NullFrame
  else
    @result[@member[:name]] = child.result
  end
end

def flattened_list?(shape)
  ListShape === shape && shape['flattened']
end

def initialize(xml_name, parent, ref, result = nil)
  super
  @result ||= ref[:struct_class].new
  @members = {}
  ref.shape.members.each do |member_name, member_ref|
    apply_default_value(member_name, member_ref)
    @members[xml_name(member_ref)] = {
      name: member_name,
      ref: member_ref,
    }
  end
end

def xml_name(ref)
  if flattened_list?(ref.shape)
    ref.shape.member.location_name || ref.location_name
  else
    ref.location_name
  end
end