diff options
Diffstat (limited to 'third_party/protobuf/php/src/Google/Protobuf/Internal/GPBWire.php')
-rw-r--r-- | third_party/protobuf/php/src/Google/Protobuf/Internal/GPBWire.php | 617 |
1 files changed, 0 insertions, 617 deletions
diff --git a/third_party/protobuf/php/src/Google/Protobuf/Internal/GPBWire.php b/third_party/protobuf/php/src/Google/Protobuf/Internal/GPBWire.php deleted file mode 100644 index 67eb1bee65..0000000000 --- a/third_party/protobuf/php/src/Google/Protobuf/Internal/GPBWire.php +++ /dev/null @@ -1,617 +0,0 @@ -<?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; - -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) - { - if (PHP_INT_SIZE == 4) { - if (bccomp($int64, 0) >= 0) { - return bcmul($int64, 2); - } else { - return bcsub(bcmul(bcsub(0, $int64), 2), 1); - } - } else { - return ($int64 << 1) ^ ($int64 >> 63); - } - } - - public static function zigZagDecode64($uint64) - { - if (PHP_INT_SIZE == 4) { - if (bcmod($uint64, 2) == 0) { - return bcdiv($uint64, 2, 0); - } else { - return bcsub(0, bcdiv(bcadd($uint64, 1), 2, 0)); - } - } else { - return (($uint64 >> 1) & 0x7FFFFFFFFFFFFFFF) ^ (-($uint64 & 1)); - } - } - - public static function readInt32(&$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) - { - return $input->readLittleEndian64($value); - } - - 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 == 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) - { - $value = GPBWire::zigZagEncode64($value); - return $output->writeVarint64($value); - } - - 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, $sign_extended = false) - { - if ($value < 0) { - if ($sign_extended) { - return 10; - } else { - return 5; - } - } - if ($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) - { - $value = self::zigZagEncode64($value); - return self::varint64Size($value); - } - - public static function varint64Size($value) - { - if (PHP_INT_SIZE == 4) { - if (bccomp($value, 0) < 0) { - return 10; - } - if (bccomp($value, 1 << 7) < 0) { - return 1; - } - if (bccomp($value, 1 << 14) < 0) { - return 2; - } - if (bccomp($value, 1 << 21) < 0) { - return 3; - } - if (bccomp($value, 1 << 28) < 0) { - return 4; - } - if (bccomp($value, '34359738368') < 0) { - return 5; - } - if (bccomp($value, '4398046511104') < 0) { - return 6; - } - if (bccomp($value, '562949953421312') < 0) { - return 7; - } - if (bccomp($value, '72057594037927936') < 0) { - return 8; - } - return 9; - } else { - if ($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; - } -} |