public String toString() {
final StringBuffer s = new StringBuffer();
s.append("[ ");
for (int i = 0; i < n; i++) {
if (i != 0) s.append(", ");
s.append(CharArrayList.wrap(getArray(i)).toString());
}
s.append(" ]");
return s.toString();
}
@SuppressWarnings("unchecked")
public void remove() {
if (last == -1) throw new IllegalStateException();
if (pos < -1) {
// We're removing wrapped entries.
Char2ObjectOpenCustomHashMap.this.remove(wrapped.getChar(-pos - 2));
last = -1;
return;
}
size--;
if (shiftKeys(last) == pos && c > 0) {
c++;
nextEntry();
}
last = -1; // You can no longer remove this entry.
if (ASSERTS) checkTable();
}
/**
* Shifts left entries with the specified hash code, starting at the specified position, and
* empties the resulting free entry. If any entry wraps around the table, instantiates lazily
* {@link #wrapped} and stores the entry key.
*
* @param pos a starting position.
* @return the position cleared by the shifting process.
*/
protected final int shiftKeys(int pos) {
// Shift entries with the same hash.
int last, slot;
for (; ; ) {
pos = ((last = pos) + 1) & mask;
while (used[pos]) {
slot = (it.unimi.dsi.fastutil.HashCommon.murmurHash3(strategy.hashCode(key[pos]))) & mask;
if (last <= pos ? last >= slot || slot > pos : last >= slot && slot > pos) break;
pos = (pos + 1) & mask;
}
if (!used[pos]) break;
if (pos < last) {
// Wrapped entry.
if (wrapped == null) wrapped = new CharArrayList();
wrapped.add(key[pos]);
}
key[last] = key[pos];
value[last] = value[pos];
}
used[last] = false;
value[last] = null;
return last;
}
public int nextEntry() {
if (!hasNext()) throw new NoSuchElementException();
c--;
// We are just enumerating elements from the wrapped list.
if (pos < 0) {
final char k = wrapped.getChar(-(last = --pos) - 2);
// The starting point.
int pos = (it.unimi.dsi.fastutil.HashCommon.murmurHash3(strategy.hashCode(k))) & mask;
// There's always an unused entry.
while (used[pos]) {
if ((strategy.equals((key[pos]), (k)))) return pos;
pos = (pos + 1) & mask;
}
}
last = pos;
// System.err.println( "Count: " + c );
if (c != 0) {
final boolean used[] = Char2ObjectOpenCustomHashMap.this.used;
while (pos-- != 0 && !used[pos]) ;
// When here pos < 0 there are no more elements to be enumerated by scanning, but wrapped
// might be nonempty.
}
return last;
}