From c370f88fb18eecc33650ec3ce06f7bdcc11d1596 Mon Sep 17 00:00:00 2001
From: Paul Yang <TeBoring@users.noreply.github.com>
Date: Thu, 7 Dec 2017 11:16:47 -0800
Subject: Recursively clear unknown fields in submessages. (#3982)

* Recursively clear unknown fields in submessages.

* Recursively discard unknown fields in submsg for c extension

* Fix zts build

* Add comment for tests

* Add a TODO to add a util for encoding varint for better readability.

* Add test for oneof message field.
---
 php/src/Google/Protobuf/Internal/Message.php | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

(limited to 'php/src/Google')

diff --git a/php/src/Google/Protobuf/Internal/Message.php b/php/src/Google/Protobuf/Internal/Message.php
index 26d20575..93e81c01 100644
--- a/php/src/Google/Protobuf/Internal/Message.php
+++ b/php/src/Google/Protobuf/Internal/Message.php
@@ -583,6 +583,34 @@ class Message
     public function discardUnknownFields()
     {
         $this->unknown = "";
+        foreach ($this->desc->getField() as $field) {
+            if ($field->getType() != GPBType::MESSAGE) {
+                continue;
+            }
+            if ($field->isMap()) {
+                $value_field = $field->getMessageType()->getFieldByNumber(2);
+                if ($value_field->getType() != GPBType::MESSAGE) {
+                    continue;
+                }
+                $getter = $field->getGetter();
+                $map = $this->$getter();
+                foreach ($map as $key => $value) {
+                    $value->discardUnknownFields();
+                }
+            } else if ($field->getLabel() === GPBLabel::REPEATED) {
+                $getter = $field->getGetter();
+                $arr = $this->$getter();
+                foreach ($arr as $sub) {
+                    $sub->discardUnknownFields();
+                }
+            } else if ($field->getLabel() === GPBLabel::OPTIONAL) {
+                $getter = $field->getGetter();
+                $sub = $this->$getter();
+                if (!is_null($sub)) {
+                    $sub->discardUnknownFields();
+                }
+            }
+        }
     }
 
     /**
-- 
cgit v1.2.3