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diff --git a/third_party/protobuf/3.2.0/php/src/Google/Protobuf/Internal/DescriptorPool.php b/third_party/protobuf/3.2.0/php/src/Google/Protobuf/Internal/DescriptorPool.php
deleted file mode 100644
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--- a/third_party/protobuf/3.2.0/php/src/Google/Protobuf/Internal/DescriptorPool.php
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@@ -1,162 +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;
-
-use Google\Protobuf\Internal\Descriptor;
-use Google\Protobuf\Internal\FileDescriptor;
-use Google\Protobuf\Internal\FileDescriptorSet;
-use Google\Protobuf\Internal\MessageBuilderContext;
-use Google\Protobuf\Internal\EnumBuilderContext;
-
-class DescriptorPool
-{
- private static $pool;
- // Map from message names to sub-maps, which are maps from field numbers to
- // field descriptors.
- private $class_to_desc = [];
- private $class_to_enum_desc = [];
- private $proto_to_class = [];
-
- public static function getGeneratedPool()
- {
- if (!isset(self::$pool)) {
- self::$pool = new DescriptorPool();
- }
- return self::$pool;
- }
-
- public function internalAddGeneratedFile($data)
- {
- $files = new FileDescriptorSet();
- $files->decode($data);
- $file = FileDescriptor::buildFromProto($files->getFile()[0]);
-
- foreach ($file->getMessageType() as &$desc) {
- $this->addDescriptor($desc);
- }
- unset($desc);
-
- foreach ($file->getEnumType() as &$desc) {
- $this->addEnumDescriptor($desc);
- }
- unset($desc);
-
- foreach ($file->getMessageType() as &$desc) {
- $this->crossLink($desc);
- }
- unset($desc);
- }
-
- public function addMessage($name, $klass)
- {
- return new MessageBuilderContext($name, $klass, $this);
- }
-
- public function addEnum($name, $klass)
- {
- return new EnumBuilderContext($name, $klass, $this);
- }
-
- public function addDescriptor($descriptor)
- {
- $this->proto_to_class[$descriptor->getFullName()] =
- $descriptor->getClass();
- $this->class_to_desc[$descriptor->getClass()] = $descriptor;
- foreach ($descriptor->getNestedType() as $nested_type) {
- $this->addDescriptor($nested_type);
- }
- }
-
- public function addEnumDescriptor($descriptor)
- {
- $this->proto_to_class[$descriptor->getFullName()] =
- $descriptor->getClass();
- $this->class_to_enum_desc[$descriptor->getClass()] = $descriptor;
- }
-
- public function getDescriptorByClassName($klass)
- {
- return $this->class_to_desc[$klass];
- }
-
- public function getEnumDescriptorByClassName($klass)
- {
- return $this->class_to_enum_desc[$klass];
- }
-
- public function getDescriptorByProtoName($proto)
- {
- $klass = $this->proto_to_class[$proto];
- return $this->class_to_desc[$klass];
- }
-
- public function getEnumDescriptorByProtoName($proto)
- {
- $klass = $this->proto_to_class[$proto];
- return $this->class_to_enum_desc[$klass];
- }
-
- private function crossLink(&$desc)
- {
- foreach ($desc->getField() as &$field) {
- switch ($field->getType()) {
- case GPBType::MESSAGE:
- $proto = $field->getMessageType();
- $field->setMessageType(
- $this->getDescriptorByProtoName($proto));
- break;
- case GPBType::ENUM:
- $proto = $field->getEnumType();
- $field->setEnumType(
- $this->getEnumDescriptorByProtoName($proto));
- break;
- default:
- break;
- }
- }
- unset($field);
-
- foreach ($desc->getNestedType() as &$nested_type) {
- $this->crossLink($nested_type);
- }
- unset($nested_type);
- }
-
- public function finish()
- {
- foreach ($this->class_to_desc as $klass => &$desc) {
- $this->crossLink($desc);
- }
- unset($desc);
- }
-}