Revert "third_party/protobuf: Update to HEAD (83d681ee2c)"

third_party/protobuf/php/src/Google/Protobuf/Internal/OutputStream.php

-<?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 OutputStream
-{
-
-    private $buffer;
-    private $buffer_size;
-    private $current;
-
-    const MAX_VARINT32_BYTES = 5;
-    const MAX_VARINT64_BYTES = 10;
-
-    public function __construct($size)
-    {
-        $this->current = 0;
-        $this->buffer_size = $size;
-        $this->buffer = str_repeat(chr(0), $this->buffer_size);
-    }
-
-    public function getData()
-    {
-        return $this->buffer;
-    }
-
-    public function writeVarint32($value)
-    {
-        $bytes = str_repeat(chr(0), self::MAX_VARINT32_BYTES);
-        $size = self::writeVarintToArray($value, $bytes, true);
-        return $this->writeRaw($bytes, $size);
-    }
-
-    public function writeVarint64($value)
-    {
-        $bytes = str_repeat(chr(0), self::MAX_VARINT64_BYTES);
-        $size = self::writeVarintToArray($value, $bytes);
-        return $this->writeRaw($bytes, $size);
-    }
-
-    public function writeLittleEndian32($value)
-    {
-        $bytes = str_repeat(chr(0), 4);
-        $size = self::writeLittleEndian32ToArray($value, $bytes);
-        return $this->writeRaw($bytes, $size);
-    }
-
-    public function writeLittleEndian64($value)
-    {
-        $bytes = str_repeat(chr(0), 8);
-        $size = self::writeLittleEndian64ToArray($value, $bytes);
-        return $this->writeRaw($bytes, $size);
-    }
-
-    public function writeTag($tag)
-    {
-        return $this->writeVarint32($tag);
-    }
-
-    public function writeRaw($data, $size)
-    {
-        if ($this->buffer_size < $size) {
-            trigger_error("Output stream doesn't have enough buffer.");
-            return false;
-        }
-
-        for ($i = 0; $i < $size; $i++) {
-            $this->buffer[$this->current] = $data[$i];
-            $this->current++;
-            $this->buffer_size--;
-        }
-        return true;
-    }
-
-    private static function writeVarintToArray($value, &$buffer, $trim = false)
-    {
-        $current = 0;
-
-        $high = 0;
-        $low = 0;
-        if (PHP_INT_SIZE == 4) {
-            GPBUtil::divideInt64ToInt32($value, $high, $low, $trim);
-        } else {
-            if ($trim) {
-                $low = $value & 0xFFFFFFFF;
-            } else {
-                $low = $value;
-            }
-        }
-
-        while ($low >= 0x80 || $low < 0) {
-            $buffer[$current] = chr($low | 0x80);
-            $value = ($value >> 7) & ~(0x7F << ((PHP_INT_SIZE << 3) - 7));
-            $carry = ($high & 0x7F) << ((PHP_INT_SIZE << 3) - 7);
-            $high = ($high >> 7) & ~(0x7F << ((PHP_INT_SIZE << 3) - 7));
-            $low = (($low >> 7) & ~(0x7F << ((PHP_INT_SIZE << 3) - 7)) | $carry);
-            $current++;
-        }
-        $buffer[$current] = chr($low);
-        return $current + 1;
-    }
-
-    private static function writeLittleEndian32ToArray($value, &$buffer)
-    {
-        $buffer[0] = chr($value & 0x000000FF);
-        $buffer[1] = chr(($value >> 8) & 0x000000FF);
-        $buffer[2] = chr(($value >> 16) & 0x000000FF);
-        $buffer[3] = chr(($value >> 24) & 0x000000FF);
-        return 4;
-    }
-
-    private static function writeLittleEndian64ToArray($value, &$buffer)
-    {
-        $high = 0;
-        $low = 0;
-        if (PHP_INT_SIZE == 4) {
-            GPBUtil::divideInt64ToInt32($value, $high, $low);
-        } else {
-            $low = $value & 0xFFFFFFFF;
-            $high = ($value >> 32) & 0xFFFFFFFF;
-        }
-
-        $buffer[0] = chr($low & 0x000000FF);
-        $buffer[1] = chr(($low >> 8) & 0x000000FF);
-        $buffer[2] = chr(($low >> 16) & 0x000000FF);
-        $buffer[3] = chr(($low >> 24) & 0x000000FF);
-        $buffer[4] = chr($high & 0x000000FF);
-        $buffer[5] = chr(($high >> 8) & 0x000000FF);
-        $buffer[6] = chr(($high >> 16) & 0x000000FF);
-        $buffer[7] = chr(($high >> 24) & 0x000000FF);
-        return 8;
-    }
-
-}