/**
* Returns a deep clone of the given dictionary. A deep clone will attempt to clone the keys and
* values (deeply) of this dictionary as well as the dictionary itself.
*
* @param dict the dictionary to clone
* @param onlyCollections if true, only collections in this dictionary will be cloned, not
* individual values
* @return a deep clone of dict
*/
public static <K, V> NSDictionary<K, V> deepClone(
NSDictionary<K, V> dict, boolean onlyCollections) {
NSMutableDictionary<K, V> clonedDict = null;
if (dict != null) {
clonedDict = dict.mutableClone();
for (K key : dict.allKeys()) {
V value = dict.objectForKey(key);
K cloneKey = ERXUtilities.deepClone(key, onlyCollections);
V cloneValue = ERXUtilities.deepClone(value, onlyCollections);
if (cloneKey != key) {
clonedDict.removeObjectForKey(key);
if (cloneValue != null) {
clonedDict.setObjectForKey(cloneValue, cloneKey);
}
} else if (cloneValue != null) {
if (cloneValue != value) {
clonedDict.setObjectForKey(cloneValue, cloneKey);
}
} else {
clonedDict.removeObjectForKey(key);
}
}
}
return clonedDict;
}
/**
* Returns a deep clone of the given set. A deep clone will attempt to clone the values of this
* set as well as the set itself.
*
* @param <T> class of set elements
* @param set the set to clone
* @param onlyCollections if true, only collections in this array will be cloned, not individual
* values
* @return a deep clone of set
*/
public static <T> NSSet<T> deepClone(NSSet<T> set, boolean onlyCollections) {
if (set == null) {
return null;
}
NSMutableSet<T> clonedSet = set.mutableClone();
for (T value : set) {
T clonedValue = ERXUtilities.deepClone(value, onlyCollections);
if (clonedValue != null) {
if (clonedValue != value) {
clonedSet.remove(value);
clonedSet.add(clonedValue);
}
} else {
clonedSet.remove(value);
}
}
return clonedSet;
}
