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// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc. All rights reserved.
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file or at
// https://developers.google.com/open-source/licenses/bsd
package com.google.protobuf;
import com.google.protobuf.FieldSet.FieldDescriptorLite;
import com.google.protobuf.Internal.EnumLiteMap;
import com.google.protobuf.Internal.EnumVerifier;
import java.io.IOException;
import java.lang.reflect.Field;
import java.util.Iterator;
import java.util.List;
import java.util.RandomAccess;
/** Helper methods used by schemas. */
@ExperimentalApi
@CheckReturnValue
final class SchemaUtil {
private static final Class GENERATED_MESSAGE_CLASS = getGeneratedMessageClass();
private static final UnknownFieldSchema UNKNOWN_FIELD_SET_FULL_SCHEMA =
getUnknownFieldSetSchema();
private static final UnknownFieldSchema UNKNOWN_FIELD_SET_LITE_SCHEMA =
new UnknownFieldSetLiteSchema();
private static final int DEFAULT_LOOK_UP_START_NUMBER = 40;
private SchemaUtil() {}
/**
* Requires that the given message extend {@link com.google.protobuf.GeneratedMessage} or {@link
* GeneratedMessageLite}.
*/
public static void requireGeneratedMessage(Class messageType) {
// TODO decide if we're keeping support for Full in schema classes and handle this
// better.
if (!GeneratedMessageLite.class.isAssignableFrom(messageType)
&& GENERATED_MESSAGE_CLASS != null
&& !GENERATED_MESSAGE_CLASS.isAssignableFrom(messageType)) {
throw new IllegalArgumentException(
"Message classes must extend GeneratedMessage or GeneratedMessageLite");
}
}
public static void writeDouble(int fieldNumber, double value, Writer writer) throws IOException {
if (Double.doubleToRawLongBits(value) != 0) {
writer.writeDouble(fieldNumber, value);
}
}
public static void writeFloat(int fieldNumber, float value, Writer writer) throws IOException {
if (Float.floatToRawIntBits(value) != 0) {
writer.writeFloat(fieldNumber, value);
}
}
public static void writeInt64(int fieldNumber, long value, Writer writer) throws IOException {
if (value != 0) {
writer.writeInt64(fieldNumber, value);
}
}
public static void writeUInt64(int fieldNumber, long value, Writer writer) throws IOException {
if (value != 0) {
writer.writeUInt64(fieldNumber, value);
}
}
public static void writeSInt64(int fieldNumber, long value, Writer writer) throws IOException {
if (value != 0) {
writer.writeSInt64(fieldNumber, value);
}
}
public static void writeFixed64(int fieldNumber, long value, Writer writer) throws IOException {
if (value != 0) {
writer.writeFixed64(fieldNumber, value);
}
}
public static void writeSFixed64(int fieldNumber, long value, Writer writer) throws IOException {
if (value != 0) {
writer.writeSFixed64(fieldNumber, value);
}
}
public static void writeInt32(int fieldNumber, int value, Writer writer) throws IOException {
if (value != 0) {
writer.writeInt32(fieldNumber, value);
}
}
public static void writeUInt32(int fieldNumber, int value, Writer writer) throws IOException {
if (value != 0) {
writer.writeUInt32(fieldNumber, value);
}
}
public static void writeSInt32(int fieldNumber, int value, Writer writer) throws IOException {
if (value != 0) {
writer.writeSInt32(fieldNumber, value);
}
}
public static void writeFixed32(int fieldNumber, int value, Writer writer) throws IOException {
if (value != 0) {
writer.writeFixed32(fieldNumber, value);
}
}
public static void writeSFixed32(int fieldNumber, int value, Writer writer) throws IOException {
if (value != 0) {
writer.writeSFixed32(fieldNumber, value);
}
}
public static void writeEnum(int fieldNumber, int value, Writer writer) throws IOException {
if (value != 0) {
writer.writeEnum(fieldNumber, value);
}
}
public static void writeBool(int fieldNumber, boolean value, Writer writer) throws IOException {
if (value) {
writer.writeBool(fieldNumber, true);
}
}
public static void writeString(int fieldNumber, Object value, Writer writer) throws IOException {
if (value instanceof String) {
writeStringInternal(fieldNumber, (String) value, writer);
} else {
writeBytes(fieldNumber, (ByteString) value, writer);
}
}
private static void writeStringInternal(int fieldNumber, String value, Writer writer)
throws IOException {
if (value != null && !value.isEmpty()) {
writer.writeString(fieldNumber, value);
}
}
public static void writeBytes(int fieldNumber, ByteString value, Writer writer)
throws IOException {
if (value != null && !value.isEmpty()) {
writer.writeBytes(fieldNumber, value);
}
}
public static void writeMessage(int fieldNumber, Object value, Writer writer) throws IOException {
if (value != null) {
writer.writeMessage(fieldNumber, value);
}
}
public static void writeDoubleList(
int fieldNumber, List value, Writer writer, boolean packed) throws IOException {
if (value != null && !value.isEmpty()) {
writer.writeDoubleList(fieldNumber, value, packed);
}
}
public static void writeFloatList(
int fieldNumber, List value, Writer writer, boolean packed) throws IOException {
if (value != null && !value.isEmpty()) {
writer.writeFloatList(fieldNumber, value, packed);
}
}
public static void writeInt64List(
int fieldNumber, List value, Writer writer, boolean packed) throws IOException {
if (value != null && !value.isEmpty()) {
writer.writeInt64List(fieldNumber, value, packed);
}
}
public static void writeUInt64List(
int fieldNumber, List value, Writer writer, boolean packed) throws IOException {
if (value != null && !value.isEmpty()) {
writer.writeUInt64List(fieldNumber, value, packed);
}
}
public static void writeSInt64List(
int fieldNumber, List value, Writer writer, boolean packed) throws IOException {
if (value != null && !value.isEmpty()) {
writer.writeSInt64List(fieldNumber, value, packed);
}
}
public static void writeFixed64List(
int fieldNumber, List value, Writer writer, boolean packed) throws IOException {
if (value != null && !value.isEmpty()) {
writer.writeFixed64List(fieldNumber, value, packed);
}
}
public static void writeSFixed64List(
int fieldNumber, List value, Writer writer, boolean packed) throws IOException {
if (value != null && !value.isEmpty()) {
writer.writeSFixed64List(fieldNumber, value, packed);
}
}
public static void writeInt32List(
int fieldNumber, List value, Writer writer, boolean packed) throws IOException {
if (value != null && !value.isEmpty()) {
writer.writeInt32List(fieldNumber, value, packed);
}
}
public static void writeUInt32List(
int fieldNumber, List value, Writer writer, boolean packed) throws IOException {
if (value != null && !value.isEmpty()) {
writer.writeUInt32List(fieldNumber, value, packed);
}
}
public static void writeSInt32List(
int fieldNumber, List value, Writer writer, boolean packed) throws IOException {
if (value != null && !value.isEmpty()) {
writer.writeSInt32List(fieldNumber, value, packed);
}
}
public static void writeFixed32List(
int fieldNumber, List value, Writer writer, boolean packed) throws IOException {
if (value != null && !value.isEmpty()) {
writer.writeFixed32List(fieldNumber, value, packed);
}
}
public static void writeSFixed32List(
int fieldNumber, List value, Writer writer, boolean packed) throws IOException {
if (value != null && !value.isEmpty()) {
writer.writeSFixed32List(fieldNumber, value, packed);
}
}
public static void writeEnumList(
int fieldNumber, List value, Writer writer, boolean packed) throws IOException {
if (value != null && !value.isEmpty()) {
writer.writeEnumList(fieldNumber, value, packed);
}
}
public static void writeBoolList(
int fieldNumber, List value, Writer writer, boolean packed) throws IOException {
if (value != null && !value.isEmpty()) {
writer.writeBoolList(fieldNumber, value, packed);
}
}
public static void writeStringList(int fieldNumber, List value, Writer writer)
throws IOException {
if (value != null && !value.isEmpty()) {
writer.writeStringList(fieldNumber, value);
}
}
public static void writeBytesList(int fieldNumber, List value, Writer writer)
throws IOException {
if (value != null && !value.isEmpty()) {
writer.writeBytesList(fieldNumber, value);
}
}
public static void writeMessageList(int fieldNumber, List value, Writer writer)
throws IOException {
if (value != null && !value.isEmpty()) {
writer.writeMessageList(fieldNumber, value);
}
}
public static void writeMessageList(int fieldNumber, List value, Writer writer, Schema schema)
throws IOException {
if (value != null && !value.isEmpty()) {
writer.writeMessageList(fieldNumber, value, schema);
}
}
public static void writeLazyFieldList(int fieldNumber, List value, Writer writer)
throws IOException {
if (value != null && !value.isEmpty()) {
for (Object item : value) {
((LazyFieldLite) item).writeTo(writer, fieldNumber);
}
}
}
public static void writeGroupList(int fieldNumber, List value, Writer writer)
throws IOException {
if (value != null && !value.isEmpty()) {
writer.writeGroupList(fieldNumber, value);
}
}
public static void writeGroupList(int fieldNumber, List value, Writer writer, Schema schema)
throws IOException {
if (value != null && !value.isEmpty()) {
writer.writeGroupList(fieldNumber, value, schema);
}
}
static int computeSizeInt64ListNoTag(List list) {
final int length = list.size();
if (length == 0) {
return 0;
}
int size = 0;
if (list instanceof LongArrayList) {
final LongArrayList primitiveList = (LongArrayList) list;
for (int i = 0; i < length; i++) {
size += CodedOutputStream.computeInt64SizeNoTag(primitiveList.getLong(i));
}
} else {
for (int i = 0; i < length; i++) {
size += CodedOutputStream.computeInt64SizeNoTag(list.get(i));
}
}
return size;
}
static int computeSizeInt64List(int fieldNumber, List list, boolean packed) {
final int length = list.size();
if (length == 0) {
return 0;
}
int size = computeSizeInt64ListNoTag(list);
if (packed) {
return CodedOutputStream.computeTagSize(fieldNumber)
+ CodedOutputStream.computeLengthDelimitedFieldSize(size);
} else {
return size + (list.size() * CodedOutputStream.computeTagSize(fieldNumber));
}
}
static int computeSizeUInt64ListNoTag(List list) {
final int length = list.size();
if (length == 0) {
return 0;
}
int size = 0;
if (list instanceof LongArrayList) {
final LongArrayList primitiveList = (LongArrayList) list;
for (int i = 0; i < length; i++) {
size += CodedOutputStream.computeUInt64SizeNoTag(primitiveList.getLong(i));
}
} else {
for (int i = 0; i < length; i++) {
size += CodedOutputStream.computeUInt64SizeNoTag(list.get(i));
}
}
return size;
}
static int computeSizeUInt64List(int fieldNumber, List list, boolean packed) {
final int length = list.size();
if (length == 0) {
return 0;
}
int size = computeSizeUInt64ListNoTag(list);
if (packed) {
return CodedOutputStream.computeTagSize(fieldNumber)
+ CodedOutputStream.computeLengthDelimitedFieldSize(size);
} else {
return size + (length * CodedOutputStream.computeTagSize(fieldNumber));
}
}
static int computeSizeSInt64ListNoTag(List list) {
final int length = list.size();
if (length == 0) {
return 0;
}
int size = 0;
if (list instanceof LongArrayList) {
final LongArrayList primitiveList = (LongArrayList) list;
for (int i = 0; i < length; i++) {
size += CodedOutputStream.computeSInt64SizeNoTag(primitiveList.getLong(i));
}
} else {
for (int i = 0; i < length; i++) {
size += CodedOutputStream.computeSInt64SizeNoTag(list.get(i));
}
}
return size;
}
static int computeSizeSInt64List(int fieldNumber, List list, boolean packed) {
final int length = list.size();
if (length == 0) {
return 0;
}
int size = computeSizeSInt64ListNoTag(list);
if (packed) {
return CodedOutputStream.computeTagSize(fieldNumber)
+ CodedOutputStream.computeLengthDelimitedFieldSize(size);
} else {
return size + (length * CodedOutputStream.computeTagSize(fieldNumber));
}
}
static int computeSizeEnumListNoTag(List list) {
final int length = list.size();
if (length == 0) {
return 0;
}
int size = 0;
if (list instanceof IntArrayList) {
final IntArrayList primitiveList = (IntArrayList) list;
for (int i = 0; i < length; i++) {
size += CodedOutputStream.computeEnumSizeNoTag(primitiveList.getInt(i));
}
} else {
for (int i = 0; i < length; i++) {
size += CodedOutputStream.computeEnumSizeNoTag(list.get(i));
}
}
return size;
}
static int computeSizeEnumList(int fieldNumber, List list, boolean packed) {
final int length = list.size();
if (length == 0) {
return 0;
}
int size = computeSizeEnumListNoTag(list);
if (packed) {
return CodedOutputStream.computeTagSize(fieldNumber)
+ CodedOutputStream.computeLengthDelimitedFieldSize(size);
} else {
return size + (length * CodedOutputStream.computeTagSize(fieldNumber));
}
}
static int computeSizeInt32ListNoTag(List list) {
final int length = list.size();
if (length == 0) {
return 0;
}
int size = 0;
if (list instanceof IntArrayList) {
final IntArrayList primitiveList = (IntArrayList) list;
for (int i = 0; i < length; i++) {
size += CodedOutputStream.computeInt32SizeNoTag(primitiveList.getInt(i));
}
} else {
for (int i = 0; i < length; i++) {
size += CodedOutputStream.computeInt32SizeNoTag(list.get(i));
}
}
return size;
}
static int computeSizeInt32List(int fieldNumber, List list, boolean packed) {
final int length = list.size();
if (length == 0) {
return 0;
}
int size = computeSizeInt32ListNoTag(list);
if (packed) {
return CodedOutputStream.computeTagSize(fieldNumber)
+ CodedOutputStream.computeLengthDelimitedFieldSize(size);
} else {
return size + (length * CodedOutputStream.computeTagSize(fieldNumber));
}
}
static int computeSizeUInt32ListNoTag(List list) {
final int length = list.size();
if (length == 0) {
return 0;
}
int size = 0;
if (list instanceof IntArrayList) {
final IntArrayList primitiveList = (IntArrayList) list;
for (int i = 0; i < length; i++) {
size += CodedOutputStream.computeUInt32SizeNoTag(primitiveList.getInt(i));
}
} else {
for (int i = 0; i < length; i++) {
size += CodedOutputStream.computeUInt32SizeNoTag(list.get(i));
}
}
return size;
}
static int computeSizeUInt32List(int fieldNumber, List list, boolean packed) {
final int length = list.size();
if (length == 0) {
return 0;
}
int size = computeSizeUInt32ListNoTag(list);
if (packed) {
return CodedOutputStream.computeTagSize(fieldNumber)
+ CodedOutputStream.computeLengthDelimitedFieldSize(size);
} else {
return size + (length * CodedOutputStream.computeTagSize(fieldNumber));
}
}
static int computeSizeSInt32ListNoTag(List list) {
final int length = list.size();
if (length == 0) {
return 0;
}
int size = 0;
if (list instanceof IntArrayList) {
final IntArrayList primitiveList = (IntArrayList) list;
for (int i = 0; i < length; i++) {
size += CodedOutputStream.computeSInt32SizeNoTag(primitiveList.getInt(i));
}
} else {
for (int i = 0; i < length; i++) {
size += CodedOutputStream.computeSInt32SizeNoTag(list.get(i));
}
}
return size;
}
static int computeSizeSInt32List(int fieldNumber, List list, boolean packed) {
final int length = list.size();
if (length == 0) {
return 0;
}
int size = computeSizeSInt32ListNoTag(list);
if (packed) {
return CodedOutputStream.computeTagSize(fieldNumber)
+ CodedOutputStream.computeLengthDelimitedFieldSize(size);
} else {
return size + (length * CodedOutputStream.computeTagSize(fieldNumber));
}
}
static int computeSizeFixed32ListNoTag(List list) {
return list.size() * WireFormat.FIXED32_SIZE;
}
static int computeSizeFixed32List(int fieldNumber, List list, boolean packed) {
final int length = list.size();
if (length == 0) {
return 0;
}
if (packed) {
int dataSize = length * WireFormat.FIXED32_SIZE;
return CodedOutputStream.computeTagSize(fieldNumber)
+ CodedOutputStream.computeLengthDelimitedFieldSize(dataSize);
} else {
return length * CodedOutputStream.computeFixed32Size(fieldNumber, 0);
}
}
static int computeSizeFixed64ListNoTag(List list) {
return list.size() * WireFormat.FIXED64_SIZE;
}
static int computeSizeFixed64List(int fieldNumber, List list, boolean packed) {
final int length = list.size();
if (length == 0) {
return 0;
}
if (packed) {
final int dataSize = length * WireFormat.FIXED64_SIZE;
return CodedOutputStream.computeTagSize(fieldNumber)
+ CodedOutputStream.computeLengthDelimitedFieldSize(dataSize);
} else {
return length * CodedOutputStream.computeFixed64Size(fieldNumber, 0);
}
}
static int computeSizeBoolListNoTag(List list) {
// bools are 1 byte varints
return list.size();
}
static int computeSizeBoolList(int fieldNumber, List list, boolean packed) {
final int length = list.size();
if (length == 0) {
return 0;
}
if (packed) {
// bools are 1 byte varints
return CodedOutputStream.computeTagSize(fieldNumber)
+ CodedOutputStream.computeLengthDelimitedFieldSize(length);
} else {
return length * CodedOutputStream.computeBoolSize(fieldNumber, true);
}
}
static int computeSizeStringList(int fieldNumber, List list) {
final int length = list.size();
if (length == 0) {
return 0;
}
int size = length * CodedOutputStream.computeTagSize(fieldNumber);
if (list instanceof LazyStringList) {
LazyStringList lazyList = ((LazyStringList) list);
for (int i = 0; i < length; i++) {
Object value = lazyList.getRaw(i);
if (value instanceof ByteString) {
size += CodedOutputStream.computeBytesSizeNoTag((ByteString) value);
} else {
size += CodedOutputStream.computeStringSizeNoTag((String) value);
}
}
} else {
for (int i = 0; i < length; i++) {
Object value = list.get(i);
if (value instanceof ByteString) {
size += CodedOutputStream.computeBytesSizeNoTag((ByteString) value);
} else {
size += CodedOutputStream.computeStringSizeNoTag((String) value);
}
}
}
return size;
}
static int computeSizeMessage(int fieldNumber, Object value, Schema schema) {
if (value instanceof LazyFieldLite) {
return CodedOutputStream.computeLazyFieldSize(fieldNumber, (LazyFieldLite) value);
} else {
return CodedOutputStream.computeMessageSize(fieldNumber, (MessageLite) value, schema);
}
}
static int computeSizeMessageList(int fieldNumber, List list) {
final int length = list.size();
if (length == 0) {
return 0;
}
int size = length * CodedOutputStream.computeTagSize(fieldNumber);
for (int i = 0; i < length; i++) {
Object value = list.get(i);
if (value instanceof LazyFieldLite) {
size += CodedOutputStream.computeLazyFieldSizeNoTag((LazyFieldLite) value);
} else {
size += CodedOutputStream.computeMessageSizeNoTag((MessageLite) value);
}
}
return size;
}
static int computeSizeMessageList(int fieldNumber, List list, Schema schema) {
final int length = list.size();
if (length == 0) {
return 0;
}
int size = length * CodedOutputStream.computeTagSize(fieldNumber);
for (int i = 0; i < length; i++) {
Object value = list.get(i);
if (value instanceof LazyFieldLite) {
size += CodedOutputStream.computeLazyFieldSizeNoTag((LazyFieldLite) value);
} else {
size += CodedOutputStream.computeMessageSizeNoTag((MessageLite) value, schema);
}
}
return size;
}
static int computeSizeByteStringList(int fieldNumber, List list) {
final int length = list.size();
if (length == 0) {
return 0;
}
int size = length * CodedOutputStream.computeTagSize(fieldNumber);
for (int i = 0; i < list.size(); i++) {
size += CodedOutputStream.computeBytesSizeNoTag(list.get(i));
}
return size;
}
static int computeSizeGroupList(int fieldNumber, List list) {
final int length = list.size();
if (length == 0) {
return 0;
}
int size = 0;
for (int i = 0; i < length; i++) {
size += CodedOutputStream.computeGroupSize(fieldNumber, list.get(i));
}
return size;
}
static int computeSizeGroupList(int fieldNumber, List list, Schema schema) {
final int length = list.size();
if (length == 0) {
return 0;
}
int size = 0;
for (int i = 0; i < length; i++) {
size += CodedOutputStream.computeGroupSize(fieldNumber, list.get(i), schema);
}
return size;
}
/**
* Determines whether to issue tableswitch or lookupswitch for the mergeFrom method.
*
* @see #shouldUseTableSwitch(int, int, int)
*/
public static boolean shouldUseTableSwitch(FieldInfo[] fields) {
// Determine whether to issue a tableswitch or a lookupswitch
// instruction.
if (fields.length == 0) {
return false;
}
int lo = fields[0].getFieldNumber();
int hi = fields[fields.length - 1].getFieldNumber();
return shouldUseTableSwitch(lo, hi, fields.length);
}
/**
* Determines whether to issue tableswitch or lookupswitch for the mergeFrom method. This is based
* on the
* logic in the JDK.
*
* @param lo the lowest fieldNumber contained within the message.
* @param hi the highest fieldNumber contained within the message.
* @param numFields the total number of fields in the message.
* @return {@code true} if tableswitch should be used, rather than lookupswitch.
*/
public static boolean shouldUseTableSwitch(int lo, int hi, int numFields) {
if (hi < DEFAULT_LOOK_UP_START_NUMBER) {
return true;
}
long tableSpaceCost = ((long) hi - lo + 1); // words
long tableTimeCost = 3; // comparisons
long lookupSpaceCost = 3 + 2 * (long) numFields;
long lookupTimeCost = 3 + (long) numFields;
return tableSpaceCost + 3 * tableTimeCost <= lookupSpaceCost + 3 * lookupTimeCost;
}
public static UnknownFieldSchema unknownFieldSetFullSchema() {
return UNKNOWN_FIELD_SET_FULL_SCHEMA;
}
public static UnknownFieldSchema unknownFieldSetLiteSchema() {
return UNKNOWN_FIELD_SET_LITE_SCHEMA;
}
private static UnknownFieldSchema getUnknownFieldSetSchema() {
try {
Class clz = getUnknownFieldSetSchemaClass();
if (clz == null) {
return null;
}
return (UnknownFieldSchema) clz.getConstructor().newInstance();
} catch (Throwable t) {
return null;
}
}
private static Class getGeneratedMessageClass() {
try {
// TODO decide if we're keeping support for Full in schema classes and handle
// this better.
return Class.forName("com.google.protobuf.GeneratedMessage");
} catch (Throwable e) {
return null;
}
}
private static Class getUnknownFieldSetSchemaClass() {
try {
return Class.forName("com.google.protobuf.UnknownFieldSetSchema");
} catch (Throwable e) {
return null;
}
}
static Object getMapDefaultEntry(Class clazz, String name) {
try {
Class holder =
Class.forName(clazz.getName() + "$" + toCamelCase(name, true) + "DefaultEntryHolder");
Field[] fields = holder.getDeclaredFields();
if (fields.length != 1) {
throw new IllegalStateException(
"Unable to look up map field default entry holder class for "
+ name
+ " in "
+ clazz.getName());
}
return UnsafeUtil.getStaticObject(fields[0]);
} catch (Throwable t) {
throw new RuntimeException(t);
}
}
static String toCamelCase(String name, boolean capNext) {
StringBuilder sb = new StringBuilder();
for (int i = 0; i < name.length(); ++i) {
char c = name.charAt(i);
// Matches protoc field name function:
if ('a' <= c && c <= 'z') {
if (capNext) {
sb.append((char) (c + ('A' - 'a')));
} else {
sb.append(c);
}
capNext = false;
} else if ('A' <= c && c <= 'Z') {
if (i == 0 && !capNext) {
// Force first letter to lower-case unless explicitly told to capitalize it.
sb.append((char) (c - ('A' - 'a')));
} else {
sb.append(c);
}
capNext = false;
} else if ('0' <= c && c <= '9') {
sb.append(c);
capNext = true;
} else {
capNext = true;
}
}
return sb.toString();
}
/** Returns true if both are null or both are {@link Object#equals}. */
static boolean safeEquals(Object a, Object b) {
return a == b || (a != null && a.equals(b));
}
static void mergeMap(MapFieldSchema mapFieldSchema, T message, T o, long offset) {
Object merged =
mapFieldSchema.mergeFrom(
UnsafeUtil.getObject(message, offset), UnsafeUtil.getObject(o, offset));
UnsafeUtil.putObject(message, offset, merged);
}
static > void mergeExtensions(
ExtensionSchema schema, T message, T other) {
FieldSet otherExtensions = schema.getExtensions(other);
if (!otherExtensions.isEmpty()) {
FieldSet messageExtensions = schema.getMutableExtensions(message);
messageExtensions.mergeFrom(otherExtensions);
}
}
static void mergeUnknownFields(
UnknownFieldSchema schema, T message, T other) {
UT messageUnknowns = schema.getFromMessage(message);
UT otherUnknowns = schema.getFromMessage(other);
UT merged = schema.merge(messageUnknowns, otherUnknowns);
schema.setToMessage(message, merged);
}
/** Filters unrecognized enum values in a list. */
@CanIgnoreReturnValue
static UB filterUnknownEnumList(
Object containerMessage,
int number,
List enumList,
EnumLiteMap enumMap,
UB unknownFields,
UnknownFieldSchema unknownFieldSchema) {
if (enumMap == null) {
return unknownFields;
}
// TODO: Specialize for IntArrayList to avoid boxing.
if (enumList instanceof RandomAccess) {
int writePos = 0;
int size = enumList.size();
for (int readPos = 0; readPos < size; ++readPos) {
int enumValue = enumList.get(readPos);
if (enumMap.findValueByNumber(enumValue) != null) {
if (readPos != writePos) {
enumList.set(writePos, enumValue);
}
++writePos;
} else {
unknownFields =
storeUnknownEnum(
containerMessage, number, enumValue, unknownFields, unknownFieldSchema);
}
}
if (writePos != size) {
enumList.subList(writePos, size).clear();
}
} else {
for (Iterator it = enumList.iterator(); it.hasNext(); ) {
int enumValue = it.next();
if (enumMap.findValueByNumber(enumValue) == null) {
unknownFields =
storeUnknownEnum(
containerMessage, number, enumValue, unknownFields, unknownFieldSchema);
it.remove();
}
}
}
return unknownFields;
}
/** Filters unrecognized enum values in a list. */
@CanIgnoreReturnValue
static UB filterUnknownEnumList(
Object containerMessage,
int number,
List enumList,
EnumVerifier enumVerifier,
UB unknownFields,
UnknownFieldSchema unknownFieldSchema) {
if (enumVerifier == null) {
return unknownFields;
}
// TODO: Specialize for IntArrayList to avoid boxing.
if (enumList instanceof RandomAccess) {
int writePos = 0;
int size = enumList.size();
for (int readPos = 0; readPos < size; ++readPos) {
int enumValue = enumList.get(readPos);
if (enumVerifier.isInRange(enumValue)) {
if (readPos != writePos) {
enumList.set(writePos, enumValue);
}
++writePos;
} else {
unknownFields =
storeUnknownEnum(
containerMessage, number, enumValue, unknownFields, unknownFieldSchema);
}
}
if (writePos != size) {
enumList.subList(writePos, size).clear();
}
} else {
for (Iterator it = enumList.iterator(); it.hasNext(); ) {
int enumValue = it.next();
if (!enumVerifier.isInRange(enumValue)) {
unknownFields =
storeUnknownEnum(
containerMessage, number, enumValue, unknownFields, unknownFieldSchema);
it.remove();
}
}
}
return unknownFields;
}
/** Stores an unrecognized enum value as an unknown value. */
@CanIgnoreReturnValue
static UB storeUnknownEnum(
Object containerMessage,
int number,
int enumValue,
UB unknownFields,
UnknownFieldSchema unknownFieldSchema) {
if (unknownFields == null) {
unknownFields = unknownFieldSchema.getBuilderFromMessage(containerMessage);
}
unknownFieldSchema.addVarint(unknownFields, number, enumValue);
return unknownFields;
}
}