private static FieldComparer getComparer(XmlNode node, Type[] genericArguments)
{
FieldComparer comparer = null;
XmlAttribute attribute = node.Attributes [ATTRIBUTE_COMPARE];
if (attribute != null)
{
// explicit comparer, get from comparers or load from assembly
comparers.TryGetValue(attribute.Value, out comparer);
if (comparer == null)
{
Type typeInAnyAssembly = GenTypes.GetTypeInAnyAssembly(attribute.Value);
if (typeInAnyAssembly != null && typeof(FieldComparer).IsAssignableFrom(typeInAnyAssembly))
{
comparer = (FieldComparer)Activator.CreateInstance(typeInAnyAssembly);
}
}
}
if (comparer == null)
{
// try to infer comparer
foreach (Type t in genericArguments)
{
if (comparers.ContainsKey(t.Name))
{
comparer = comparers [t.Name];
break;
}
}
}
return(comparer);
}
public static void RegisterComparer(Type type, FieldComparer comparer)
{
comparers.Add(type.Name, comparer);
}
private void OverrideDataFromXml(XmlNode xmlRoot, Verse.Def destinationDef, bool debug)
{
Type destinationType = destinationDef.GetType();
string prefix = "Override :: " + destinationDef + " :: ";
foreach (XmlNode node in xmlRoot.ChildNodes)
{
// field we are about to change
string name = node.Name;
if (name == null
// may cause save issues if these change
|| name == "shortHash" ||
name == "index" ||
name == "debugRandomId")
{
continue;
}
string text = node.InnerText;
Mode mode = getMode(node);
if (string.IsNullOrEmpty(text) && mode != Mode.Clear)
{
// removal must be explicit replace or it's ignored
continue;
}
if (name == "defName")
{
// not allowed to change target defName
// we use it for tracking
if (debug)
{
Log.Message(prefix + text);
}
prefix = "Override :: " + text + " :: ";
continue;
}
FieldInfo destinationField = destinationType.GetField(name, BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance);
if (destinationField == null)
{
Log.Warning(prefix + "\"" + name + "\" not found in target");
continue;
}
Type destinationFieldType = destinationField.FieldType;
object destinationValue;
if (mode == Mode.Clear && !destinationFieldType.IsPrimitive)
{
// we are clearing
// primitives can't be null, set to 0 ?
destinationValue = null;
destinationField.SetValue(destinationDef, destinationValue);
if (debug)
{
Log.Message(prefix + "\"" + name + "\" has been set to null");
}
}
else
{
destinationValue = destinationField.GetValue(destinationDef);
}
if (destinationFieldType.HasGenericDefinition(typeof(List <>)))
{
// its a list, search the source and queue or insert
Type[] genericArguments = destinationFieldType.GetGenericArguments();
// Is it a def or derivate?
Type targetDefType = null;
foreach (Type t in genericArguments)
{
if (typeof(Verse.Def).IsAssignableFrom(t))
{
targetDefType = t;
break;
}
}
// sometimes, they don't exist. Don't worry, no one will interfere.
if (destinationValue == null)
{
destinationValue = Activator.CreateInstance(destinationFieldType);
destinationField.SetValue(destinationDef, destinationValue);
if (debug)
{
Log.Message(prefix + "\"" + name + "\" has been set to \"" + destinationValue + "\"");
}
}
FieldParser parserFactory = getParserFactory(node);
Func <XmlNode, object> parser = parserFactory.makeParser(genericArguments);
// compares destination and result. Only available for Replace mode
FieldComparer comparer = mode == Mode.Replace ? getComparer(node, genericArguments) : null;
if (targetDefType != null)
{
// Crossreferencing a List needs the generic method
MethodInfo crossRefLoader_RegisterListWantsCrossRef_generic = crossRefLoader_RegisterListWantsCrossRef.MakeGenericMethod(targetDefType);
foreach (XmlNode child in node.ChildNodes)
{
object[] parameters = new object[] {
destinationValue, child.InnerText
};
crossRefLoader_RegisterListWantsCrossRef_generic.Invoke(null, parameters);
if (debug)
{
Log.Message(prefix + "Registered into \"" + name + "\" the value \"" + child.InnerText + "\" of type \"" + targetDefType + "\"");
}
}
}
else
{
if (parser == null)
{
Log.Warning(prefix + "Parser is null");
continue;
}
IList destinationList = (IList)destinationValue;
foreach (XmlNode child in node.ChildNodes)
{
object result = parser(child);
if (result == null)
{
// no nulls allowed, they are troublemakers
Log.Warning(prefix + "Can't Add null into \"" + name + "\"");
continue;
}
if (mode == Mode.Replace)
{
if (comparer == null)
{
Log.Warning(prefix + "No known comparer for \"" + name + "\"");
break;
}
Action findAndReplace = delegate {
bool found = false;
int index;
for (index = 0; index < destinationList.Count; index++)
{
if (comparer.Compare(result, destinationList [index]))
{
destinationList [index] = result;
found = true;
break;
}
}
if (found)
{
if (debug)
{
Log.Message(prefix + "Replaced into postion " + index + " at \"" + name + "\" the value \"" + result + "\"");
}
}
else
{
destinationList.Add(result);
if (debug)
{
Log.Message(prefix + "Added into \"" + name + "\" the value \"" + result + "\"");
}
}
};
if (comparer.delay)
{
resolveReferencesActionQueue.Enqueue(findAndReplace);
if (debug)
{
Log.Message(prefix + "Delaying Replace of element in \"" + name + "\" list");
}
}
else
{
findAndReplace();
}
}
else if (mode == Mode.Append)
{
destinationList.Add(result);
if (debug)
{
Log.Message(prefix + "Added into \"" + name + "\" the value \"" + result + "\"");
}
}
else
{
int index = mode == Mode.Insert ? getIndex(child, destinationList) : 0;
destinationList.Insert(index, result);
if (debug)
{
Log.Message(prefix + "Inserted into position " + index + " at \"" + destinationField.Name + "\" the value \"" + result + "\"");
}
}
}
}
}
else if (destinationFieldType.HasGenericDefinition(typeof(Dictionary <, >)))
{
// its a dict, what do we do?
Log.Warning(prefix + "We don't know how to override Dictionary yet...");
}
else if (typeof(Verse.Def).IsAssignableFrom(destinationFieldType))
{
// its a Def, queue
CrossRefLoader.RegisterObjectWantsCrossRef(destinationDef, destinationField, text);
if (debug)
{
Log.Message(prefix + "Registered \"" + name + "\" with value \"" + destinationValue + "\" of type \"" + destinationFieldType.Name + "\" into \"" + text + "\"");
}
}
else if (ParseHelper.HandlesType(destinationFieldType))
{
// it can be handled by ParserHelper
object result = ParseHelper.FromString(text, destinationFieldType);
destinationField.SetValue(destinationDef, result);
if (debug)
{
Log.Message(prefix + "Set \"" + name + "\" with value \"" + destinationValue + "\" of type \"" + destinationFieldType.Name + "\" into \"" + text + "\"");
}
}
else
{
// it's most likely an object, try XmlToObject.
FieldParser parserFactory = getParserFactory(node);
Func <XmlNode, object> parser = parserFactory.makeParser(destinationFieldType);
object result = null;
if (parser != null)
{
result = parser(node);
}
if (result != null)
{
// this may fail, try catch?
destinationField.SetValue(destinationDef, result);
if (debug)
{
Log.Message(prefix + "Set \"" + name + "\" with value \"" + destinationValue + "\" of type \"" + destinationFieldType.Name + "\" into \"" + result + "\"");
}
}
else
{
// user entered null
Log.Warning(prefix + "Can't Set \"" + name + "\"");
}
}
}
}
