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diff --git a/php/src/Google/Protobuf/Internal/GPBWire.php b/php/src/Google/Protobuf/Internal/GPBWire.php
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+<?php
+
+// 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.
+
+namespace Google\Protobuf\Internal;
+
+use Google\Protobuf\Internal\GPBUtil;
+use Google\Protobuf\Internal\Int64;
+use Google\Protobuf\Internal\Uint64;
+
+class GPBWire
+{
+
+ const TAG_TYPE_BITS = 3;
+
+ const WIRETYPE_VARINT = 0;
+ const WIRETYPE_FIXED64 = 1;
+ const WIRETYPE_LENGTH_DELIMITED = 2;
+ const WIRETYPE_START_GROUP = 3;
+ const WIRETYPE_END_GROUP = 4;
+ const WIRETYPE_FIXED32 = 5;
+
+ const UNKNOWN = 0;
+ const NORMAL_FORMAT = 1;
+ const PACKED_FORMAT = 2;
+
+ public static function getTagFieldNumber($tag)
+ {
+ return ($tag >> self::TAG_TYPE_BITS) &
+ (1 << ((PHP_INT_SIZE * 8) - self::TAG_TYPE_BITS)) - 1;
+ }
+
+ public static function getTagWireType($tag)
+ {
+ return $tag & 0x7;
+ }
+
+ public static function getWireType($type)
+ {
+ switch ($type) {
+ case GPBType::FLOAT:
+ case GPBType::FIXED32:
+ case GPBType::SFIXED32:
+ return self::WIRETYPE_FIXED32;
+ case GPBType::DOUBLE:
+ case GPBType::FIXED64:
+ case GPBType::SFIXED64:
+ return self::WIRETYPE_FIXED64;
+ case GPBType::UINT32:
+ case GPBType::UINT64:
+ case GPBType::INT32:
+ case GPBType::INT64:
+ case GPBType::SINT32:
+ case GPBType::SINT64:
+ case GPBType::ENUM:
+ case GPBType::BOOL:
+ return self::WIRETYPE_VARINT;
+ case GPBType::STRING:
+ case GPBType::BYTES:
+ case GPBType::MESSAGE:
+ return self::WIRETYPE_LENGTH_DELIMITED;
+ case GPBType::GROUP:
+ user_error("Unsupported type.");
+ return 0;
+ default:
+ user_error("Unsupported type.");
+ return 0;
+ }
+ }
+
+ // ZigZag Transform: Encodes signed integers so that they can be effectively
+ // used with varint encoding.
+ //
+ // varint operates on unsigned integers, encoding smaller numbers into fewer
+ // bytes. If you try to use it on a signed integer, it will treat this
+ // number as a very large unsigned integer, which means that even small
+ // signed numbers like -1 will take the maximum number of bytes (10) to
+ // encode. zigZagEncode() maps signed integers to unsigned in such a way
+ // that those with a small absolute value will have smaller encoded values,
+ // making them appropriate for encoding using varint.
+ //
+ // int32 -> uint32
+ // -------------------------
+ // 0 -> 0
+ // -1 -> 1
+ // 1 -> 2
+ // -2 -> 3
+ // ... -> ...
+ // 2147483647 -> 4294967294
+ // -2147483648 -> 4294967295
+ //
+ // >> encode >>
+ // << decode <<
+ public static function zigZagEncode32($int32)
+ {
+ // Fill high 32 bits.
+ if (PHP_INT_SIZE === 8) {
+ $int32 |= ((($int32 << 32) >> 31) & (0xFFFFFFFF << 32));
+ }
+
+ $uint32 = ($int32 << 1) ^ ($int32 >> 31);
+
+ // Fill high 32 bits.
+ if (PHP_INT_SIZE === 8) {
+ $uint32 |= ((($uint32 << 32) >> 31) & (0xFFFFFFFF << 32));
+ }
+
+ return $uint32;
+ }
+
+ public static function zigZagDecode32($uint32)
+ {
+ // Fill high 32 bits.
+ if (PHP_INT_SIZE === 8) {
+ $uint32 |= ($uint32 & 0xFFFFFFFF);
+ }
+
+ $int32 = (($uint32 >> 1) & 0x7FFFFFFF) ^ (-($uint32 & 1));
+
+ return $int32;
+ }
+
+ public static function zigZagEncode64($int64)
+ {
+ $a = $int64->copy()->leftShift(1);
+ $b = $int64->copy()->rightShift(63);
+ $result = $a->bitXor($b);
+ $uint64 = Uint64::newValue($result->high, $result->low);
+ return $uint64;
+ }
+
+ public static function zigZagDecode64($uint64)
+ {
+ $a = $uint64->copy()->rightShift(1);
+ $b = $uint64->oddMask();
+ $result = $a->bitXor($b);
+ $int64 = Int64::newValue($result->high, $result->low);
+ return $int64;
+ }
+
+ public static function readInt32(&$input, &$value)
+ {
+ return $input->readVarint32($value);
+ }
+
+ public static function readInt64(&$input, &$value)
+ {
+ return $input->readVarint64($value);
+ }
+
+ public static function readUint32(&$input, &$value)
+ {
+ return self::readInt32($input, $value);
+ }
+
+ public static function readUint64(&$input, &$value)
+ {
+ return self::readInt64($input, $value);
+ }
+
+ public static function readSint32(&$input, &$value)
+ {
+ if (!$input->readVarint32($value)) {
+ return false;
+ }
+ $value = GPBWire::zigZagDecode32($value);
+ return true;
+ }
+
+ public static function readSint64(&$input, &$value)
+ {
+ if (!$input->readVarint64($value)) {
+ return false;
+ }
+ $value = GPBWire::zigZagDecode64($value);
+ return true;
+ }
+
+ public static function readFixed32(&$input, &$value)
+ {
+ return $input->readLittleEndian32($value);
+ }
+
+ public static function readFixed64(&$input, &$value)
+ {
+ return $input->readLittleEndian64($value);
+ }
+
+ public static function readSfixed32(&$input, &$value)
+ {
+ if (!self::readFixed32($input, $value)) {
+ return false;
+ }
+ if (PHP_INT_SIZE === 8) {
+ $value |= (-($value >> 31) << 32);
+ }
+ return true;
+ }
+
+ public static function readSfixed64(&$input, &$value)
+ {
+ if (!self::readFixed64($input, $value)) {
+ return false;
+ }
+ $value = Int64::newValue($value->high, $value->low);
+ return true;
+ }
+
+ public static function readFloat(&$input, &$value)
+ {
+ $data = null;
+ if (!$input->readRaw(4, $data)) {
+ return false;
+ }
+ $value = unpack('f', $data)[1];
+ return true;
+ }
+
+ public static function readDouble(&$input, &$value)
+ {
+ $data = null;
+ if (!$input->readRaw(8, $data)) {
+ return false;
+ }
+ $value = unpack('d', $data)[1];
+ return true;
+ }
+
+ public static function readBool(&$input, &$value)
+ {
+ if (!$input->readVarint64($value)) {
+ return false;
+ }
+ if ($value->high === 0 && $value->low === 0) {
+ $value = false;
+ } else {
+ $value = true;
+ }
+ return true;
+ }
+
+ public static function readString(&$input, &$value)
+ {
+ $length = 0;
+ return $input->readVarintSizeAsInt($length) && $input->readRaw($length, $value);
+ }
+
+ public static function readMessage(&$input, &$message)
+ {
+ $length = 0;
+ if (!$input->readVarintSizeAsInt($length)) {
+ return false;
+ }
+ $old_limit = 0;
+ $recursion_limit = 0;
+ $input->incrementRecursionDepthAndPushLimit(
+ $length,
+ $old_limit,
+ $recursion_limit);
+ if ($recursion_limit < 0 || !$message->parseFromStream($input)) {
+ return false;
+ }
+ return $input->decrementRecursionDepthAndPopLimit($old_limit);
+ }
+
+ public static function writeTag(&$output, $tag)
+ {
+ return $output->writeTag($tag);
+ }
+
+ public static function writeInt32(&$output, $value)
+ {
+ return $output->writeVarint32($value);
+ }
+
+ public static function writeInt64(&$output, $value)
+ {
+ return $output->writeVarint64($value);
+ }
+
+ public static function writeUint32(&$output, $value)
+ {
+ return $output->writeVarint32($value);
+ }
+
+ public static function writeUint64(&$output, $value)
+ {
+ return $output->writeVarint64($value);
+ }
+
+ public static function writeSint32(&$output, $value)
+ {
+ $value = GPBWire::zigZagEncode32($value);
+ return $output->writeVarint64($value);
+ }
+
+ public static function writeSint64(&$output, $value)
+ {
+ $value = GPBWire::zigZagEncode64(GPBUtil::Int64($value));
+ return $output->writeVarint64($value->toInteger());
+ }
+
+ public static function writeFixed32(&$output, $value)
+ {
+ return $output->writeLittleEndian32($value);
+ }
+
+ public static function writeFixed64(&$output, $value)
+ {
+ return $output->writeLittleEndian64($value);
+ }
+
+ public static function writeSfixed32(&$output, $value)
+ {
+ return $output->writeLittleEndian32($value);
+ }
+
+ public static function writeSfixed64(&$output, $value)
+ {
+ return $output->writeLittleEndian64($value);
+ }
+
+ public static function writeBool(&$output, $value)
+ {
+ if ($value) {
+ return $output->writeVarint32(1);
+ } else {
+ return $output->writeVarint32(0);
+ }
+ }
+
+ public static function writeFloat(&$output, $value)
+ {
+ $data = pack("f", $value);
+ return $output->writeRaw($data, 4);
+ }
+
+ public static function writeDouble(&$output, $value)
+ {
+ $data = pack("d", $value);
+ return $output->writeRaw($data, 8);
+ }
+
+ public static function writeString(&$output, $value)
+ {
+ return self::writeBytes($output, $value);
+ }
+
+ public static function writeBytes(&$output, $value)
+ {
+ $size = strlen($value);
+ if (!$output->writeVarint32($size)) {
+ return false;
+ }
+ return $output->writeRaw($value, $size);
+ }
+
+ public static function writeMessage(&$output, $value)
+ {
+ $size = $value->byteSize();
+ if (!$output->writeVarint32($size)) {
+ return false;
+ }
+ return $value->serializeToStream($output);
+ }
+
+ public static function makeTag($number, $type)
+ {
+ return ($number << 3) | self::getWireType($type);
+ }
+
+ public static function tagSize($field)
+ {
+ $tag = self::makeTag($field->getNumber(), $field->getType());
+ return self::varint32Size($tag);
+ }
+
+ public static function varint32Size($value)
+ {
+ if ($value < 0) {
+ return 5;
+ }
+ if ($value < (1 << 7)) {
+ return 1;
+ }
+ if ($value < (1 << 14)) {
+ return 2;
+ }
+ if ($value < (1 << 21)) {
+ return 3;
+ }
+ if ($value < (1 << 28)) {
+ return 4;
+ }
+ return 5;
+ }
+
+ public static function sint32Size($value)
+ {
+ $value = self::zigZagEncode32($value);
+ return self::varint32Size($value);
+ }
+
+ public static function sint64Size($value)
+ {
+ $value = GPBUtil::Int64($value);
+ $value = self::zigZagEncode64($value);
+ return self::varint64Size($value->toInteger());
+ }
+
+ public static function varint64Size($value)
+ {
+ if ($value < 0) {
+ return 10;
+ }
+ if ($value < (1 << 7)) {
+ return 1;
+ }
+ if ($value < (1 << 14)) {
+ return 2;
+ }
+ if ($value < (1 << 21)) {
+ return 3;
+ }
+ if ($value < (1 << 28)) {
+ return 4;
+ }
+ if ($value < (1 << 35)) {
+ return 5;
+ }
+ if ($value < (1 << 42)) {
+ return 6;
+ }
+ if ($value < (1 << 49)) {
+ return 7;
+ }
+ if ($value < (1 << 56)) {
+ return 8;
+ }
+ return 9;
+ }
+
+ public static function serializeFieldToStream(
+ $value,
+ $field,
+ $need_tag,
+ &$output)
+ {
+ if ($need_tag) {
+ if (!GPBWire::writeTag(
+ $output,
+ self::makeTag(
+ $field->getNumber(),
+ $field->getType()))) {
+ return false;
+ }
+ }
+ switch ($field->getType()) {
+ case GPBType::DOUBLE:
+ if (!GPBWire::writeDouble($output, $value)) {
+ return false;
+ }
+ break;
+ case GPBType::FLOAT:
+ if (!GPBWire::writeFloat($output, $value)) {
+ return false;
+ }
+ break;
+ case GPBType::INT64:
+ if (!GPBWire::writeInt64($output, $value)) {
+ return false;
+ }
+ break;
+ case GPBType::UINT64:
+ if (!GPBWire::writeUint64($output, $value)) {
+ return false;
+ }
+ break;
+ case GPBType::INT32:
+ if (!GPBWire::writeInt32($output, $value)) {
+ return false;
+ }
+ break;
+ case GPBType::FIXED32:
+ if (!GPBWire::writeFixed32($output, $value)) {
+ return false;
+ }
+ break;
+ case GPBType::FIXED64:
+ if (!GPBWire::writeFixed64($output, $value)) {
+ return false;
+ }
+ break;
+ case GPBType::BOOL:
+ if (!GPBWire::writeBool($output, $value)) {
+ return false;
+ }
+ break;
+ case GPBType::STRING:
+ if (!GPBWire::writeString($output, $value)) {
+ return false;
+ }
+ break;
+ // case GPBType::GROUP:
+ // echo "GROUP\xA";
+ // trigger_error("Not implemented.", E_ERROR);
+ // break;
+ case GPBType::MESSAGE:
+ if (!GPBWire::writeMessage($output, $value)) {
+ return false;
+ }
+ break;
+ case GPBType::BYTES:
+ if (!GPBWire::writeBytes($output, $value)) {
+ return false;
+ }
+ break;
+ case GPBType::UINT32:
+ if (!GPBWire::writeUint32($output, $value)) {
+ return false;
+ }
+ break;
+ case GPBType::ENUM:
+ if (!GPBWire::writeInt32($output, $value)) {
+ return false;
+ }
+ break;
+ case GPBType::SFIXED32:
+ if (!GPBWire::writeSfixed32($output, $value)) {
+ return false;
+ }
+ break;
+ case GPBType::SFIXED64:
+ if (!GPBWire::writeSfixed64($output, $value)) {
+ return false;
+ }
+ break;
+ case GPBType::SINT32:
+ if (!GPBWire::writeSint32($output, $value)) {
+ return false;
+ }
+ break;
+ case GPBType::SINT64:
+ if (!GPBWire::writeSint64($output, $value)) {
+ return false;
+ }
+ break;
+ default:
+ user_error("Unsupported type.");
+ return false;
+ }
+
+ return true;
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-29 01:18:17 +0000