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Unified Diff: third_party/protobuf/java/src/main/java/com/google/protobuf/MapFieldLite.java

Issue 1983203003: Update third_party/protobuf to protobuf-v3.0.0-beta-3 (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: owners Created 4 years, 7 months ago
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Index: third_party/protobuf/java/src/main/java/com/google/protobuf/MapFieldLite.java
diff --git a/third_party/protobuf/java/src/main/java/com/google/protobuf/MapFieldLite.java b/third_party/protobuf/java/src/main/java/com/google/protobuf/MapFieldLite.java
deleted file mode 100644
index 16d3e6d224e74a82c64e64fb8570c04385307b42..0000000000000000000000000000000000000000
--- a/third_party/protobuf/java/src/main/java/com/google/protobuf/MapFieldLite.java
+++ /dev/null
@@ -1,549 +0,0 @@
-// Protocol Buffers - Google's data interchange format
-// Copyright 2008 Google Inc. All rights reserved.
-// https://developers.google.com/protocol-buffers/
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-package com.google.protobuf;
-
-import com.google.protobuf.Internal.EnumLite;
-
-import java.util.Arrays;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.Iterator;
-import java.util.LinkedHashMap;
-import java.util.Map;
-import java.util.Set;
-
-/**
- * Internal representation of map fields in generated lite-runtime messages.
- *
- * This class is a protobuf implementation detail. Users shouldn't use this
- * class directly.
- */
-public final class MapFieldLite<K, V> implements MutabilityOracle {
- private MutatabilityAwareMap<K, V> mapData;
- private boolean isMutable;
-
- private MapFieldLite(Map<K, V> mapData) {
- this.mapData = new MutatabilityAwareMap<K, V>(this, mapData);
- this.isMutable = true;
- }
-
- @SuppressWarnings({"rawtypes", "unchecked"})
- private static final MapFieldLite EMPTY_MAP_FIELD =
- new MapFieldLite(Collections.emptyMap());
- static {
- EMPTY_MAP_FIELD.makeImmutable();
- }
-
- /** Returns an singleton immutable empty MapFieldLite instance. */
- @SuppressWarnings({"unchecked", "cast"})
- public static <K, V> MapFieldLite<K, V> emptyMapField() {
- return (MapFieldLite<K, V>) EMPTY_MAP_FIELD;
- }
-
- /** Creates a new MapFieldLite instance. */
- public static <K, V> MapFieldLite<K, V> newMapField() {
- return new MapFieldLite<K, V>(new LinkedHashMap<K, V>());
- }
-
- /** Gets the content of this MapField as a read-only Map. */
- public Map<K, V> getMap() {
- return Collections.unmodifiableMap(mapData);
- }
-
- /** Gets a mutable Map view of this MapField. */
- public Map<K, V> getMutableMap() {
- return mapData;
- }
-
- public void mergeFrom(MapFieldLite<K, V> other) {
- mapData.putAll(copy(other.mapData));
- }
-
- public void clear() {
- mapData.clear();
- }
-
- private static boolean equals(Object a, Object b) {
- if (a instanceof byte[] && b instanceof byte[]) {
- return Arrays.equals((byte[]) a, (byte[]) b);
- }
- return a.equals(b);
- }
-
- /**
- * Checks whether two {@link Map}s are equal. We don't use the default equals
- * method of {@link Map} because it compares by identity not by content for
- * byte arrays.
- */
- static <K, V> boolean equals(Map<K, V> a, Map<K, V> b) {
- if (a == b) {
- return true;
- }
- if (a.size() != b.size()) {
- return false;
- }
- for (Map.Entry<K, V> entry : a.entrySet()) {
- if (!b.containsKey(entry.getKey())) {
- return false;
- }
- if (!equals(entry.getValue(), b.get(entry.getKey()))) {
- return false;
- }
- }
- return true;
- }
-
- /**
- * Checks whether two map fields are equal.
- */
- @SuppressWarnings("unchecked")
- @Override
- public boolean equals(Object object) {
- if (!(object instanceof MapFieldLite)) {
- return false;
- }
- MapFieldLite<K, V> other = (MapFieldLite<K, V>) object;
- return equals(mapData, other.mapData);
- }
-
- private static int calculateHashCodeForObject(Object a) {
- if (a instanceof byte[]) {
- return LiteralByteString.hashCode((byte[]) a);
- }
- // Enums should be stored as integers internally.
- if (a instanceof EnumLite) {
- throw new UnsupportedOperationException();
- }
- return a.hashCode();
- }
-
- /**
- * Calculates the hash code for a {@link Map}. We don't use the default hash
- * code method of {@link Map} because for byte arrays and protobuf enums it
- * use {@link Object#hashCode()}.
- */
- static <K, V> int calculateHashCodeForMap(Map<K, V> a) {
- int result = 0;
- for (Map.Entry<K, V> entry : a.entrySet()) {
- result += calculateHashCodeForObject(entry.getKey())
- ^ calculateHashCodeForObject(entry.getValue());
- }
- return result;
- }
-
- @Override
- public int hashCode() {
- return calculateHashCodeForMap(mapData);
- }
-
- private static Object copy(Object object) {
- if (object instanceof byte[]) {
- byte[] data = (byte[]) object;
- return Arrays.copyOf(data, data.length);
- }
- return object;
- }
-
- /**
- * Makes a deep copy of a {@link Map}. Immutable objects in the map will be
- * shared (e.g., integers, strings, immutable messages) and mutable ones will
- * have a copy (e.g., byte arrays, mutable messages).
- */
- @SuppressWarnings("unchecked")
- static <K, V> Map<K, V> copy(Map<K, V> map) {
- Map<K, V> result = new LinkedHashMap<K, V>();
- for (Map.Entry<K, V> entry : map.entrySet()) {
- result.put(entry.getKey(), (V) copy(entry.getValue()));
- }
- return result;
- }
-
- /** Returns a deep copy of this map field. */
- public MapFieldLite<K, V> copy() {
- return new MapFieldLite<K, V>(copy(mapData));
- }
-
- /**
- * Makes this field immutable. All subsequent modifications will throw an
- * {@link UnsupportedOperationException}.
- */
- public void makeImmutable() {
- isMutable = false;
- }
-
- /**
- * Returns whether this field can be modified.
- */
- public boolean isMutable() {
- return isMutable;
- }
-
- @Override
- public void ensureMutable() {
- if (!isMutable()) {
- throw new UnsupportedOperationException();
- }
- }
-
- /**
- * An internal map that checks for mutability before delegating.
- */
- static class MutatabilityAwareMap<K, V> implements Map<K, V> {
- private final MutabilityOracle mutabilityOracle;
- private final Map<K, V> delegate;
-
- MutatabilityAwareMap(MutabilityOracle mutabilityOracle, Map<K, V> delegate) {
- this.mutabilityOracle = mutabilityOracle;
- this.delegate = delegate;
- }
-
- @Override
- public int size() {
- return delegate.size();
- }
-
- @Override
- public boolean isEmpty() {
- return delegate.isEmpty();
- }
-
- @Override
- public boolean containsKey(Object key) {
- return delegate.containsKey(key);
- }
-
- @Override
- public boolean containsValue(Object value) {
- return delegate.containsValue(value);
- }
-
- @Override
- public V get(Object key) {
- return delegate.get(key);
- }
-
- @Override
- public V put(K key, V value) {
- mutabilityOracle.ensureMutable();
- return delegate.put(key, value);
- }
-
- @Override
- public V remove(Object key) {
- mutabilityOracle.ensureMutable();
- return delegate.remove(key);
- }
-
- @Override
- public void putAll(Map<? extends K, ? extends V> m) {
- mutabilityOracle.ensureMutable();
- delegate.putAll(m);
- }
-
- @Override
- public void clear() {
- mutabilityOracle.ensureMutable();
- delegate.clear();
- }
-
- @Override
- public Set<K> keySet() {
- return new MutatabilityAwareSet<K>(mutabilityOracle, delegate.keySet());
- }
-
- @Override
- public Collection<V> values() {
- return new MutatabilityAwareCollection<V>(mutabilityOracle, delegate.values());
- }
-
- @Override
- public Set<java.util.Map.Entry<K, V>> entrySet() {
- return new MutatabilityAwareSet<Entry<K, V>>(mutabilityOracle, delegate.entrySet());
- }
-
- @Override
- public boolean equals(Object o) {
- return delegate.equals(o);
- }
-
- @Override
- public int hashCode() {
- return delegate.hashCode();
- }
-
- @Override
- public String toString() {
- return delegate.toString();
- }
- }
-
- /**
- * An internal collection that checks for mutability before delegating.
- */
- private static class MutatabilityAwareCollection<E> implements Collection<E> {
- private final MutabilityOracle mutabilityOracle;
- private final Collection<E> delegate;
-
- MutatabilityAwareCollection(MutabilityOracle mutabilityOracle, Collection<E> delegate) {
- this.mutabilityOracle = mutabilityOracle;
- this.delegate = delegate;
- }
-
- @Override
- public int size() {
- return delegate.size();
- }
-
- @Override
- public boolean isEmpty() {
- return delegate.isEmpty();
- }
-
- @Override
- public boolean contains(Object o) {
- return delegate.contains(o);
- }
-
- @Override
- public Iterator<E> iterator() {
- return new MutatabilityAwareIterator<E>(mutabilityOracle, delegate.iterator());
- }
-
- @Override
- public Object[] toArray() {
- return delegate.toArray();
- }
-
- @Override
- public <T> T[] toArray(T[] a) {
- return delegate.toArray(a);
- }
-
- @Override
- public boolean add(E e) {
- // Unsupported operation in the delegate.
- throw new UnsupportedOperationException();
- }
-
- @Override
- public boolean remove(Object o) {
- mutabilityOracle.ensureMutable();
- return delegate.remove(o);
- }
-
- @Override
- public boolean containsAll(Collection<?> c) {
- return delegate.containsAll(c);
- }
-
- @Override
- public boolean addAll(Collection<? extends E> c) {
- // Unsupported operation in the delegate.
- throw new UnsupportedOperationException();
- }
-
- @Override
- public boolean removeAll(Collection<?> c) {
- mutabilityOracle.ensureMutable();
- return delegate.removeAll(c);
- }
-
- @Override
- public boolean retainAll(Collection<?> c) {
- mutabilityOracle.ensureMutable();
- return delegate.retainAll(c);
- }
-
- @Override
- public void clear() {
- mutabilityOracle.ensureMutable();
- delegate.clear();
- }
-
- @Override
- public boolean equals(Object o) {
- return delegate.equals(o);
- }
-
- @Override
- public int hashCode() {
- return delegate.hashCode();
- }
-
- @Override
- public String toString() {
- return delegate.toString();
- }
- }
-
- /**
- * An internal set that checks for mutability before delegating.
- */
- private static class MutatabilityAwareSet<E> implements Set<E> {
- private final MutabilityOracle mutabilityOracle;
- private final Set<E> delegate;
-
- MutatabilityAwareSet(MutabilityOracle mutabilityOracle, Set<E> delegate) {
- this.mutabilityOracle = mutabilityOracle;
- this.delegate = delegate;
- }
-
- @Override
- public int size() {
- return delegate.size();
- }
-
- @Override
- public boolean isEmpty() {
- return delegate.isEmpty();
- }
-
- @Override
- public boolean contains(Object o) {
- return delegate.contains(o);
- }
-
- @Override
- public Iterator<E> iterator() {
- return new MutatabilityAwareIterator<E>(mutabilityOracle, delegate.iterator());
- }
-
- @Override
- public Object[] toArray() {
- return delegate.toArray();
- }
-
- @Override
- public <T> T[] toArray(T[] a) {
- return delegate.toArray(a);
- }
-
- @Override
- public boolean add(E e) {
- mutabilityOracle.ensureMutable();
- return delegate.add(e);
- }
-
- @Override
- public boolean remove(Object o) {
- mutabilityOracle.ensureMutable();
- return delegate.remove(o);
- }
-
- @Override
- public boolean containsAll(Collection<?> c) {
- return delegate.containsAll(c);
- }
-
- @Override
- public boolean addAll(Collection<? extends E> c) {
- mutabilityOracle.ensureMutable();
- return delegate.addAll(c);
- }
-
- @Override
- public boolean retainAll(Collection<?> c) {
- mutabilityOracle.ensureMutable();
- return delegate.retainAll(c);
- }
-
- @Override
- public boolean removeAll(Collection<?> c) {
- mutabilityOracle.ensureMutable();
- return delegate.removeAll(c);
- }
-
- @Override
- public void clear() {
- mutabilityOracle.ensureMutable();
- delegate.clear();
- }
-
- @Override
- public boolean equals(Object o) {
- return delegate.equals(o);
- }
-
- @Override
- public int hashCode() {
- return delegate.hashCode();
- }
-
- @Override
- public String toString() {
- return delegate.toString();
- }
- }
-
- /**
- * An internal iterator that checks for mutability before delegating.
- */
- private static class MutatabilityAwareIterator<E> implements Iterator<E> {
- private final MutabilityOracle mutabilityOracle;
- private final Iterator<E> delegate;
-
- MutatabilityAwareIterator(MutabilityOracle mutabilityOracle, Iterator<E> delegate) {
- this.mutabilityOracle = mutabilityOracle;
- this.delegate = delegate;
- }
-
- @Override
- public boolean hasNext() {
- return delegate.hasNext();
- }
-
- @Override
- public E next() {
- return delegate.next();
- }
-
- @Override
- public void remove() {
- mutabilityOracle.ensureMutable();
- delegate.remove();
- }
-
- @Override
- public boolean equals(Object obj) {
- return delegate.equals(obj);
- }
-
- @Override
- public int hashCode() {
- return delegate.hashCode();
- }
-
- @Override
- public String toString() {
- return delegate.toString();
- }
- }
-}

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