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Carefully designed and efficient extension of the Java Collections Framework with primitive specializations and more, built for Java 8 (Implementation)
The newest version!
/*
* Copyright 2014 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.koloboke.collect.impl.hash;
import com.koloboke.collect.*;
import com.koloboke.collect.hash.HashConfig;
import com.koloboke.collect.impl.*;
import com.koloboke.collect.map.*;
import com.koloboke.collect.map.hash.*;
import com.koloboke.collect.set.*;
import com.koloboke.collect.set.hash.*;
import java.util.function.BiConsumer;
import java.util.function.BiFunction;
import java.util.function.Predicate;
import java.util.function.BiConsumer;
import java.util.function.BiPredicate;
import java.util.function.BiFunction;
import java.util.function.Function;
import java.util.function.Consumer;
import java.util.function.Function;
import java.util.function.Predicate;
import java.util.function.BiFunction;
import java.util.function.Consumer;
import java.util.function.Predicate;
import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
import javax.annotation.Nonnull;
import java.util.*;
public class ImmutableQHashParallelKVObjObjMapGO
extends ImmutableQHashParallelKVObjObjMapSO {
final void copy(ParallelKVObjObjQHash hash) {
int
hashMC = hash.modCount();
super.copy(hash);
if (
hashMC != hash.modCount())
throw new ConcurrentModificationException();
}
final void move(ParallelKVObjObjQHash hash) {
int
hashMC = hash.modCount();
super.move(hash);
if (
hashMC != hash.modCount())
throw new ConcurrentModificationException();
}
@Override
@Nonnull
public Equivalence valueEquivalence() {
return Equivalence.defaultEquality();
}
@Override
public boolean containsEntry(Object key, Object value) {
int index = index(key);
if (index >= 0) {
// key is present
return nullableValueEquals((V) table[index + 1], (V) value);
} else {
// key is absent
return false;
}
}
@Override
public V get(Object key) {
int index = index(key);
if (index >= 0) {
// key is present
return (V) table[index + 1];
} else {
// key is absent
return null;
}
}
@Override
public V getOrDefault(Object key, V defaultValue) {
int index = index(key);
if (index >= 0) {
// key is present
return (V) table[index + 1];
} else {
// key is absent
return defaultValue;
}
}
@Override
public void forEach(BiConsumer action) {
if (action == null)
throw new java.lang.NullPointerException();
if (this.isEmpty())
return;
Object[] tab = table;
for (int i = tab.length - 2; i >= 0; i -= 2) {
K key;
// noinspection unchecked
if ((key = (K) tab[i]) != FREE) {
action.accept(key, (V) tab[i + 1]);
}
}
}
@Override
public boolean forEachWhile(BiPredicate predicate) {
if (predicate == null)
throw new java.lang.NullPointerException();
if (this.isEmpty())
return true;
boolean terminated = false;
Object[] tab = table;
for (int i = tab.length - 2; i >= 0; i -= 2) {
K key;
// noinspection unchecked
if ((key = (K) tab[i]) != FREE) {
if (!predicate.test(key, (V) tab[i + 1])) {
terminated = true;
break;
}
}
}
return !terminated;
}
@Nonnull
@Override
public ObjObjCursor cursor() {
return new NoRemovedMapCursor();
}
@SuppressWarnings("unchecked")
@Override
public boolean containsAllEntries(Map m) {
return CommonObjObjMapOps.containsAllEntries(this, m);
}
@Override
public boolean allEntriesContainingIn(InternalObjObjMapOps m) {
if (this.isEmpty())
return true;
boolean containsAll = true;
Object[] tab = table;
for (int i = tab.length - 2; i >= 0; i -= 2) {
K key;
// noinspection unchecked
if ((key = (K) tab[i]) != FREE) {
if (!m.containsEntry(key, (V) tab[i + 1])) {
containsAll = false;
break;
}
}
}
return containsAll;
}
@Override
public void reversePutAllTo(InternalObjObjMapOps m) {
if (this.isEmpty())
return;
Object[] tab = table;
for (int i = tab.length - 2; i >= 0; i -= 2) {
K key;
// noinspection unchecked
if ((key = (K) tab[i]) != FREE) {
m.justPut(key, (V) tab[i + 1]);
}
}
}
@Override
@Nonnull
public HashObjSet> entrySet() {
return new EntryView();
}
@Override
@Nonnull
public ObjCollection values() {
return new ValueView();
}
@Override
public boolean equals(Object o) {
return CommonMapOps.equals(this, o);
}
@Override
public int hashCode() {
int hashCode = 0;
Object[] tab = table;
for (int i = tab.length - 2; i >= 0; i -= 2) {
K key;
// noinspection unchecked
if ((key = (K) tab[i]) != FREE) {
hashCode += nullableKeyHashCode(key) ^ nullableValueHashCode((V) tab[i + 1]);
}
}
return hashCode;
}
@Override
public String toString() {
if (this.isEmpty())
return "{}";
StringBuilder sb = new StringBuilder();
int elementCount = 0;
Object[] tab = table;
for (int i = tab.length - 2; i >= 0; i -= 2) {
K key;
// noinspection unchecked
if ((key = (K) tab[i]) != FREE) {
sb.append(' ');
sb.append(key != (Object) this ? key : "(this Map)");
sb.append('=');
Object val = (V) tab[i + 1];
sb.append(val != (Object) this ? val : "(this Map)");
sb.append(',');
if (++elementCount == 8) {
int expectedLength = sb.length() * (size() / 8);
sb.ensureCapacity(expectedLength + (expectedLength / 2));
}
}
}
sb.setCharAt(0, '{');
sb.setCharAt(sb.length() - 1, '}');
return sb.toString();
}
@Override
public V put(K key, V value) {
throw new java.lang.UnsupportedOperationException();
}
@Override
public V putIfAbsent(K key, V value) {
throw new java.lang.UnsupportedOperationException();
}
@Override
public void justPut(K key, V value) {
throw new java.lang.UnsupportedOperationException();
}
@Override
public V compute(K key,
BiFunction remappingFunction) {
throw new java.lang.UnsupportedOperationException();
}
V computeNullKey(
BiFunction remappingFunction) {
throw new java.lang.UnsupportedOperationException();
}
@Override
public V computeIfAbsent(K key,
Function mappingFunction) {
throw new java.lang.UnsupportedOperationException();
}
V computeIfAbsentNullKey(
Function mappingFunction) {
throw new java.lang.UnsupportedOperationException();
}
@Override
public V computeIfPresent(K key,
BiFunction remappingFunction) {
throw new java.lang.UnsupportedOperationException();
}
@Override
public V merge(K key, V value,
BiFunction remappingFunction) {
throw new java.lang.UnsupportedOperationException();
}
V mergeNullKey(V value,
BiFunction remappingFunction) {
throw new java.lang.UnsupportedOperationException();
}
@Override
public void putAll(@Nonnull Map m) {
CommonObjObjMapOps.putAll(this, m);
}
@Override
public V replace(K key, V value) {
throw new java.lang.UnsupportedOperationException();
}
@Override
public boolean replace(K key, V oldValue, V newValue) {
throw new java.lang.UnsupportedOperationException();
}
@Override
public void replaceAll(
BiFunction function) {
throw new java.lang.UnsupportedOperationException();
}
@Override
public V remove(Object key) {
throw new java.lang.UnsupportedOperationException();
}
V removeNullKey() {
throw new java.lang.UnsupportedOperationException();
}
@Override
public boolean justRemove(Object key) {
throw new java.lang.UnsupportedOperationException();
}
boolean justRemoveNullKey() {
throw new java.lang.UnsupportedOperationException();
}
@Override
public boolean remove(Object key, Object value) {
throw new java.lang.UnsupportedOperationException();
}
boolean removeEntryNullKey(Object value) {
throw new java.lang.UnsupportedOperationException();
}
@Override
public boolean removeIf(BiPredicate filter) {
throw new java.lang.UnsupportedOperationException();
}
class EntryView extends AbstractSetView>
implements HashObjSet>,
InternalObjCollectionOps> {
@Nonnull
@Override
public Equivalence> equivalence() {
return Equivalence.entryEquivalence(
keyEquivalence(),
valueEquivalence()
);
}
@Nonnull
@Override
public HashConfig hashConfig() {
return ImmutableQHashParallelKVObjObjMapGO.this.hashConfig();
}
@Override
public int size() {
// Read field instead of calling size() to avoid infinite recursive calls in Koloboke
// Compile-generated map, if it extends AbstractMap
return size;
}
@Override
public double currentLoad() {
return ImmutableQHashParallelKVObjObjMapGO.this.currentLoad();
}
@Override
@SuppressWarnings("unchecked")
public boolean contains(Object o) {
try {
Map.Entry e = (Map.Entry) o;
return containsEntry(e.getKey(), e.getValue());
} catch (NullPointerException e) {
return false;
} catch (ClassCastException e) {
return false;
}
}
@Override
@Nonnull
public final Object[] toArray() {
int size = size();
Object[] result = new Object[size];
if (size == 0)
return result;
int resultIndex = 0;
Object[] tab = table;
for (int i = tab.length - 2; i >= 0; i -= 2) {
K key;
// noinspection unchecked
if ((key = (K) tab[i]) != FREE) {
result[resultIndex++] = new ImmutableEntry(key, (V) tab[i + 1]);
}
}
return result;
}
@Override
@SuppressWarnings("unchecked")
@Nonnull
public final T[] toArray(@Nonnull T[] a) {
int size = size();
if (a.length < size) {
Class elementType = a.getClass().getComponentType();
a = (T[]) java.lang.reflect.Array.newInstance(elementType, size);
}
if (size == 0) {
if (a.length > 0)
a[0] = null;
return a;
}
int resultIndex = 0;
Object[] tab = table;
for (int i = tab.length - 2; i >= 0; i -= 2) {
K key;
// noinspection unchecked
if ((key = (K) tab[i]) != FREE) {
a[resultIndex++] = (T) new ImmutableEntry(key, (V) tab[i + 1]);
}
}
if (a.length > resultIndex)
a[resultIndex] = null;
return a;
}
@Override
public final void forEach(@Nonnull Consumer> action) {
if (action == null)
throw new java.lang.NullPointerException();
if (this.isEmpty())
return;
Object[] tab = table;
for (int i = tab.length - 2; i >= 0; i -= 2) {
K key;
// noinspection unchecked
if ((key = (K) tab[i]) != FREE) {
action.accept(new ImmutableEntry(key, (V) tab[i + 1]));
}
}
}
@Override
public boolean forEachWhile(@Nonnull Predicate> predicate) {
if (predicate == null)
throw new java.lang.NullPointerException();
if (this.isEmpty())
return true;
boolean terminated = false;
Object[] tab = table;
for (int i = tab.length - 2; i >= 0; i -= 2) {
K key;
// noinspection unchecked
if ((key = (K) tab[i]) != FREE) {
if (!predicate.test(new ImmutableEntry(key, (V) tab[i + 1]))) {
terminated = true;
break;
}
}
}
return !terminated;
}
@Override
@Nonnull
public ObjIterator> iterator() {
return new NoRemovedEntryIterator(
);
}
@Nonnull
@Override
public ObjCursor> cursor() {
return new NoRemovedEntryCursor(
);
}
@Override
public final boolean containsAll(@Nonnull Collection c) {
return CommonObjCollectionOps.containsAll(this, c);
}
@Override
public final boolean allContainingIn(ObjCollection c) {
if (this.isEmpty())
return true;
boolean containsAll = true;
ReusableEntry e = new ReusableEntry();
Object[] tab = table;
for (int i = tab.length - 2; i >= 0; i -= 2) {
K key;
// noinspection unchecked
if ((key = (K) tab[i]) != FREE) {
if (!c.contains(e.with(key, (V) tab[i + 1]))) {
containsAll = false;
break;
}
}
}
return containsAll;
}
@Override
public boolean reverseRemoveAllFrom(ObjSet s) {
if (this.isEmpty() || s.isEmpty())
return false;
boolean changed = false;
ReusableEntry e = new ReusableEntry();
Object[] tab = table;
for (int i = tab.length - 2; i >= 0; i -= 2) {
K key;
// noinspection unchecked
if ((key = (K) tab[i]) != FREE) {
changed |= s.remove(e.with(key, (V) tab[i + 1]));
}
}
return changed;
}
@Override
public final boolean reverseAddAllTo(ObjCollection> c) {
if (this.isEmpty())
return false;
boolean changed = false;
Object[] tab = table;
for (int i = tab.length - 2; i >= 0; i -= 2) {
K key;
// noinspection unchecked
if ((key = (K) tab[i]) != FREE) {
changed |= c.add(new ImmutableEntry(key, (V) tab[i + 1]));
}
}
return changed;
}
public int hashCode() {
return ImmutableQHashParallelKVObjObjMapGO.this.hashCode();
}
@Override
public String toString() {
if (this.isEmpty())
return "[]";
StringBuilder sb = new StringBuilder();
int elementCount = 0;
Object[] tab = table;
for (int i = tab.length - 2; i >= 0; i -= 2) {
K key;
// noinspection unchecked
if ((key = (K) tab[i]) != FREE) {
sb.append(' ');
sb.append(key != (Object) this ? key : "(this Collection)");
sb.append('=');
Object val = (V) tab[i + 1];
sb.append(val != (Object) this ? val : "(this Collection)");
sb.append(',');
if (++elementCount == 8) {
int expectedLength = sb.length() * (size() / 8);
sb.ensureCapacity(expectedLength + (expectedLength / 2));
}
}
}
sb.setCharAt(0, '[');
sb.setCharAt(sb.length() - 1, ']');
return sb.toString();
}
@Override
public boolean shrink() {
return ImmutableQHashParallelKVObjObjMapGO.this.shrink();
}
@Override
@SuppressWarnings("unchecked")
public boolean remove(Object o) {
try {
Map.Entry e = (Map.Entry) o;
K key = e.getKey();
V value = e.getValue();
return ImmutableQHashParallelKVObjObjMapGO.this.remove(key, value);
} catch (NullPointerException e) {
return false;
} catch (ClassCastException e) {
return false;
}
}
@Override
public final boolean removeIf(@Nonnull Predicate> filter) {
throw new java.lang.UnsupportedOperationException();
}
@SuppressWarnings("unchecked")
@Override
public final boolean removeAll(@Nonnull Collection c) {
if (c instanceof InternalObjCollectionOps) {
InternalObjCollectionOps c2 = (InternalObjCollectionOps) c;
if (equivalence().equals(c2.equivalence()) && c2.size() < this.size()) {
c2.reverseRemoveAllFrom(this);
}
}
throw new java.lang.UnsupportedOperationException();
}
@Override
public final boolean retainAll(@Nonnull Collection c) {
throw new java.lang.UnsupportedOperationException();
}
@Override
public void clear() {
// Don't call map.clear() directly to avoid infinite recursive calls in Koloboke
// Compile-generated map, if it extends AbstractMap
throw new UnsupportedOperationException();
}
}
abstract class ObjObjEntry extends AbstractEntry {
abstract K key();
@Override
public final K getKey() {
return key();
}
abstract V value();
@Override
public final V getValue() {
return value();
}
@SuppressWarnings("unchecked")
@Override
public boolean equals(Object o) {
Map.Entry e2;
K k2;
V v2;
try {
e2 = (Map.Entry) o;
k2 = (K) e2.getKey();
v2 = (V) e2.getValue();
return // This is important to pass Koloboke's key as the second parameter
// and always call nullableKeyEquivalence() (that checks keys are identical
// before calling keyEquals()) for compliance with @CustomKeyEquivalence
// contract
nullableKeyEquals(k2, key())
&&
nullableValueEquals(v2, value());
} catch (ClassCastException e) {
return false;
} catch (NullPointerException e) {
return false;
}
}
@Override
public int hashCode() {
return nullableKeyHashCode(key())
^
nullableValueHashCode(value());
}
}
private class ImmutableEntry extends ObjObjEntry {
private final K key;
private final V value;
ImmutableEntry(K key, V value) {
this.key = key;
this.value = value;
}
@Override
public K key() {
return key;
}
@Override
public V value() {
return value;
}
}
class ReusableEntry extends ObjObjEntry {
private K key;
private V value;
ReusableEntry with(K key, V value) {
this.key = key;
this.value = value;
return this;
}
@Override
public K key() {
return key;
}
@Override
public V value() {
return value;
}
}
class ValueView extends AbstractObjValueView {
@Override
public Equivalence equivalence() {
return valueEquivalence();
}
@Override
public int size() {
return ImmutableQHashParallelKVObjObjMapGO.this.size();
}
@Override
public boolean shrink() {
return ImmutableQHashParallelKVObjObjMapGO.this.shrink();
}
@Override
public boolean contains(Object o) {
return ImmutableQHashParallelKVObjObjMapGO.this.containsValue(o);
}
@Override
public void forEach(Consumer action) {
if (action == null)
throw new java.lang.NullPointerException();
if (this.isEmpty())
return;
Object[] tab = table;
for (int i = tab.length - 2; i >= 0; i -= 2) {
if (tab[i] != FREE) {
action.accept((V) tab[i + 1]);
}
}
}
@Override
public boolean forEachWhile(Predicate predicate) {
if (predicate == null)
throw new java.lang.NullPointerException();
if (this.isEmpty())
return true;
boolean terminated = false;
Object[] tab = table;
for (int i = tab.length - 2; i >= 0; i -= 2) {
if (tab[i] != FREE) {
if (!predicate.test((V) tab[i + 1])) {
terminated = true;
break;
}
}
}
return !terminated;
}
@Override
public boolean allContainingIn(ObjCollection c) {
if (this.isEmpty())
return true;
boolean containsAll = true;
Object[] tab = table;
for (int i = tab.length - 2; i >= 0; i -= 2) {
if (tab[i] != FREE) {
if (!c.contains((V) tab[i + 1])) {
containsAll = false;
break;
}
}
}
return containsAll;
}
@Override
public boolean reverseAddAllTo(ObjCollection c) {
if (this.isEmpty())
return false;
boolean changed = false;
Object[] tab = table;
for (int i = tab.length - 2; i >= 0; i -= 2) {
if (tab[i] != FREE) {
changed |= c.add((V) tab[i + 1]);
}
}
return changed;
}
@Override
public boolean reverseRemoveAllFrom(ObjSet s) {
if (this.isEmpty() || s.isEmpty())
return false;
boolean changed = false;
Object[] tab = table;
for (int i = tab.length - 2; i >= 0; i -= 2) {
if (tab[i] != FREE) {
changed |= s.remove((V) tab[i + 1]);
}
}
return changed;
}
@Override
@Nonnull
public ObjIterator iterator() {
return new NoRemovedValueIterator(
);
}
@Nonnull
@Override
public ObjCursor cursor() {
return new NoRemovedValueCursor(
);
}
@Override
@Nonnull
public Object[] toArray() {
int size = size();
Object[] result = new Object[size];
if (size == 0)
return result;
int resultIndex = 0;
Object[] tab = table;
for (int i = tab.length - 2; i >= 0; i -= 2) {
if (tab[i] != FREE) {
result[resultIndex++] = (V) tab[i + 1];
}
}
return result;
}
@Override
@SuppressWarnings("unchecked")
@Nonnull
public T[] toArray(@Nonnull T[] a) {
int size = size();
if (a.length < size) {
Class elementType = a.getClass().getComponentType();
a = (T[]) java.lang.reflect.Array.newInstance(elementType, size);
}
if (size == 0) {
if (a.length > 0)
a[0] = null;
return a;
}
int resultIndex = 0;
Object[] tab = table;
for (int i = tab.length - 2; i >= 0; i -= 2) {
if (tab[i] != FREE) {
a[resultIndex++] = (T) (V) tab[i + 1];
}
}
if (a.length > resultIndex)
a[resultIndex] = null;
return a;
}
@Override
public String toString() {
if (this.isEmpty())
return "[]";
StringBuilder sb = new StringBuilder();
int elementCount = 0;
Object[] tab = table;
for (int i = tab.length - 2; i >= 0; i -= 2) {
if (tab[i] != FREE) {
V val;
sb.append(' ').append((val = (V) tab[i + 1]) != (Object) this ? val : "(this Collection)").append(',');
if (++elementCount == 8) {
int expectedLength = sb.length() * (size() / 8);
sb.ensureCapacity(expectedLength + (expectedLength / 2));
}
}
}
sb.setCharAt(0, '[');
sb.setCharAt(sb.length() - 1, ']');
return sb.toString();
}
@Override
public boolean remove(Object o) {
return removeValue(o);
}
@Override
public void clear() {
ImmutableQHashParallelKVObjObjMapGO.this.clear();
}
@Override
public boolean removeIf(Predicate filter) {
throw new java.lang.UnsupportedOperationException();
}
@Override
public boolean removeAll(@Nonnull Collection c) {
throw new java.lang.UnsupportedOperationException();
}
@Override
public boolean retainAll(@Nonnull Collection c) {
throw new java.lang.UnsupportedOperationException();
}
}
class NoRemovedEntryIterator implements ObjIterator> {
final Object[] tab;
int nextIndex;
ImmutableEntry next;
NoRemovedEntryIterator() {
Object[] tab = this.tab = table;
int nextI = tab.length;
while ((nextI -= 2) >= 0) {
Object key;
if ((key = tab[nextI]) != FREE) {
// noinspection unchecked
next = new ImmutableEntry((K) key, (V) tab[nextI + 1]);
break;
}
}
nextIndex = nextI;
}
@Override
public void forEachRemaining(@Nonnull Consumer> action) {
if (action == null)
throw new java.lang.NullPointerException();
Object[] tab = this.tab;
int nextI = nextIndex;
for (int i = nextI; i >= 0; i -= 2) {
Object key;
if ((key = tab[i]) != FREE) {
// noinspection unchecked
action.accept(new ImmutableEntry((K) key, (V) tab[i + 1]));
}
}
if (nextI != nextIndex) {
throw new java.util.ConcurrentModificationException();
}
nextIndex = -1;
}
@Override
public boolean hasNext() {
return nextIndex >= 0;
}
@Override
public Map.Entry next() {
int nextI;
if ((nextI = nextIndex) >= 0) {
Object[] tab = this.tab;
ImmutableEntry prev = next;
while ((nextI -= 2) >= 0) {
Object key;
if ((key = tab[nextI]) != FREE) {
// noinspection unchecked
next = new ImmutableEntry((K) key, (V) tab[nextI + 1]);
break;
}
}
nextIndex = nextI;
return prev;
} else {
throw new java.util.NoSuchElementException();
}
}
@Override
public void remove() {
throw new java.lang.UnsupportedOperationException();
}
}
class NoRemovedEntryCursor implements ObjCursor> {
final Object[] tab;
int index;
Object curKey;
V curValue;
NoRemovedEntryCursor() {
this.tab = table;
index = tab.length;
curKey = FREE;
}
@Override
public void forEachForward(Consumer> action) {
if (action == null)
throw new java.lang.NullPointerException();
Object[] tab = this.tab;
int index = this.index;
for (int i = index - 2; i >= 0; i -= 2) {
Object key;
if ((key = tab[i]) != FREE) {
// noinspection unchecked
action.accept(new ImmutableEntry((K) key, (V) tab[i + 1]));
}
}
if (index != this.index) {
throw new java.util.ConcurrentModificationException();
}
this.index = -1;
curKey = FREE;
}
@Override
public Map.Entry elem() {
Object curKey;
if ((curKey = this.curKey) != FREE) {
// noinspection unchecked
return new ImmutableEntry((K) curKey, curValue);
} else {
throw new java.lang.IllegalStateException();
}
}
@Override
public boolean moveNext() {
Object[] tab = this.tab;
for (int i = index - 2; i >= 0; i -= 2) {
Object key;
if ((key = tab[i]) != FREE) {
index = i;
curKey = key;
curValue = (V) tab[i + 1];
return true;
}
}
curKey = FREE;
index = -1;
return false;
}
@Override
public void remove() {
throw new java.lang.UnsupportedOperationException();
}
}
class NoRemovedValueIterator implements ObjIterator {
final Object[] tab;
int nextIndex;
V next;
NoRemovedValueIterator() {
Object[] tab = this.tab = table;
int nextI = tab.length;
while ((nextI -= 2) >= 0) {
if (tab[nextI] != FREE) {
// noinspection unchecked
next = (V) tab[nextI + 1];
break;
}
}
nextIndex = nextI;
}
@Override
public void forEachRemaining(Consumer action) {
if (action == null)
throw new java.lang.NullPointerException();
Object[] tab = this.tab;
int nextI = nextIndex;
for (int i = nextI; i >= 0; i -= 2) {
if (tab[i] != FREE) {
// noinspection unchecked
action.accept((V) tab[i + 1]);
}
}
if (nextI != nextIndex) {
throw new java.util.ConcurrentModificationException();
}
nextIndex = -1;
}
@Override
public boolean hasNext() {
return nextIndex >= 0;
}
@Override
public V next() {
int nextI;
if ((nextI = nextIndex) >= 0) {
Object[] tab = this.tab;
V prev = next;
while ((nextI -= 2) >= 0) {
if (tab[nextI] != FREE) {
// noinspection unchecked
next = (V) tab[nextI + 1];
break;
}
}
nextIndex = nextI;
return prev;
} else {
throw new java.util.NoSuchElementException();
}
}
@Override
public void remove() {
throw new java.lang.UnsupportedOperationException();
}
}
class NoRemovedValueCursor implements ObjCursor {
final Object[] tab;
int index;
Object curKey;
V curValue;
NoRemovedValueCursor() {
this.tab = table;
index = tab.length;
curKey = FREE;
}
@Override
public void forEachForward(Consumer action) {
if (action == null)
throw new java.lang.NullPointerException();
Object[] tab = this.tab;
int index = this.index;
for (int i = index - 2; i >= 0; i -= 2) {
if (tab[i] != FREE) {
// noinspection unchecked
action.accept((V) tab[i + 1]);
}
}
if (index != this.index) {
throw new java.util.ConcurrentModificationException();
}
this.index = -1;
curKey = FREE;
}
@Override
public V elem() {
if (curKey != FREE) {
return curValue;
} else {
throw new java.lang.IllegalStateException();
}
}
@Override
public boolean moveNext() {
Object[] tab = this.tab;
for (int i = index - 2; i >= 0; i -= 2) {
Object key;
if ((key = tab[i]) != FREE) {
index = i;
curKey = key;
curValue = (V) tab[i + 1];
return true;
}
}
curKey = FREE;
index = -1;
return false;
}
@Override
public void remove() {
throw new java.lang.UnsupportedOperationException();
}
}
class NoRemovedMapCursor implements ObjObjCursor {
final Object[] tab;
int index;
Object curKey;
V curValue;
NoRemovedMapCursor() {
this.tab = table;
index = tab.length;
curKey = FREE;
}
@Override
public void forEachForward(BiConsumer action) {
if (action == null)
throw new java.lang.NullPointerException();
Object[] tab = this.tab;
int index = this.index;
for (int i = index - 2; i >= 0; i -= 2) {
Object key;
if ((key = tab[i]) != FREE) {
// noinspection unchecked
action.accept((K) key, (V) tab[i + 1]);
}
}
if (index != this.index) {
throw new java.util.ConcurrentModificationException();
}
this.index = -1;
curKey = FREE;
}
@Override
public K key() {
Object curKey;
if ((curKey = this.curKey) != FREE) {
// noinspection unchecked
return (K) curKey;
} else {
throw new java.lang.IllegalStateException();
}
}
@Override
public V value() {
if (curKey != FREE) {
return curValue;
} else {
throw new java.lang.IllegalStateException();
}
}
@Override
public void setValue(V value) {
if (curKey != FREE) {
tab[index + 1] = value;
} else {
throw new java.lang.IllegalStateException();
}
}
@Override
public boolean moveNext() {
Object[] tab = this.tab;
for (int i = index - 2; i >= 0; i -= 2) {
Object key;
if ((key = tab[i]) != FREE) {
index = i;
curKey = key;
curValue = (V) tab[i + 1];
return true;
}
}
curKey = FREE;
index = -1;
return false;
}
@Override
public void remove() {
throw new java.lang.UnsupportedOperationException();
}
}
}