Data Structures

Classes

• MemberInfo
  a class that encapsulates the data contained in a <top_level_object> or <member> xml element
• EnumInfo
  a class that encapsulates the data contained in an <enumeration> xml element

Lists

• allInstances
  a list of MemberInfos
• rootInstances
  another list of MemberInfos

Hash Maps

• typeHashMap
  a hash map whose keys are strings and whose values are lists of MemberInfos
• enumHashMap
  a hash map whose keys are strings and whose values are EnumInfos

Logic Pseudo-Code

for each topLevelObject in (xml elements of type <top_level_object>):
    info = new MemberInfo(topLevelObject)
    allInstances.add(info)
    rootInstances.add(info)

for each clazz in (xml elements of type <class>):
    memberList = new List()
    typeHashMap[clazz.name] = memberList
    for each member in (xml element of type <member>):
        info = new MemberInfo(member)
        allInstances.add(info)
        memberList.add(info)

for each enum in (xml elements of type <enumeration>):
    enumHashMap[enum.name] = new EnumInfo(enum)

for each instance in allInstances:
    instance.children = typeHashMap[instance.type]       // one of these
    instance.enumeration = enumHashMap[instance.type]    // will be NULL

Walking the Tree

The entire variable hierarchy can be obtained via a pre-order depth-first traversal of rootInstances. The other data structures are now redundant and can be discarded.

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