From 3b3c8abb9635eb3ea078a821a99c9ef29d66dff7 Mon Sep 17 00:00:00 2001
From: Jisi Liu <jisi.liu@gmail.com>
Date: Wed, 30 Mar 2016 11:39:59 -0700
Subject: Integrate google internal changes.

---
 src/google/protobuf/any.cc | 46 +++++++++++++++++++++++-----------------------
 1 file changed, 23 insertions(+), 23 deletions(-)

(limited to 'src/google/protobuf/any.cc')

diff --git a/src/google/protobuf/any.cc b/src/google/protobuf/any.cc
index f3ca06bf..f7b1d310 100644
--- a/src/google/protobuf/any.cc
+++ b/src/google/protobuf/any.cc
@@ -35,10 +35,15 @@ namespace protobuf {
 namespace internal {
 
 namespace {
-string GetTypeUrl(const Descriptor* message) {
-  return string(kTypeGoogleApisComPrefix) + message->full_name();
+string GetTypeUrl(const Descriptor* message,
+                  const string& type_url_prefix) {
+  if (!type_url_prefix.empty() &&
+      type_url_prefix[type_url_prefix.size() - 1] == '/') {
+    return type_url_prefix + message->full_name();
+  } else {
+    return type_url_prefix + "/" + message->full_name();
+  }
 }
-
 }  // namespace
 
 const char kAnyFullTypeName[] = "google.protobuf.Any";
@@ -50,8 +55,13 @@ AnyMetadata::AnyMetadata(UrlType* type_url, ValueType* value)
 }
 
 void AnyMetadata::PackFrom(const Message& message) {
+  PackFrom(message, kTypeGoogleApisComPrefix);
+}
+
+void AnyMetadata::PackFrom(const Message& message,
+                           const string& type_url_prefix) {
   type_url_->SetNoArena(&::google::protobuf::internal::GetEmptyString(),
-                        GetTypeUrl(message.GetDescriptor()));
+                        GetTypeUrl(message.GetDescriptor(), type_url_prefix));
   message.SerializeToString(value_->MutableNoArena(
       &::google::protobuf::internal::GetEmptyStringAlreadyInited()));
 }
@@ -67,30 +77,20 @@ bool AnyMetadata::UnpackTo(Message* message) const {
 bool AnyMetadata::InternalIs(const Descriptor* descriptor) const {
   const string type_url = type_url_->GetNoArena(
              &::google::protobuf::internal::GetEmptyString());
-  const string full_name = descriptor->full_name();
-  if (type_url.length() < full_name.length()) {
-      return false;
+  string full_name;
+  if (!ParseAnyTypeUrl(type_url, &full_name)) {
+    return false;
   }
-  return (0 == type_url.compare(
-    type_url.length() - full_name.length(),
-    full_name.length(),
-    full_name));
+  return full_name == descriptor->full_name();
 }
 
 bool ParseAnyTypeUrl(const string& type_url, string* full_type_name) {
-  static const char* prefix[] = {
-    kTypeGoogleApisComPrefix,
-    kTypeGoogleProdComPrefix
-  };
-  for (int i = 0; i < 2; i++) {
-    const int prefix_len = strlen(prefix[i]);
-    if (strncmp(type_url.c_str(), prefix[i], prefix_len) == 0) {
-      full_type_name->assign(type_url.data() + prefix_len,
-                             type_url.size() - prefix_len);
-      return true;
-    }
+  size_t pos = type_url.find_last_of("/");
+  if (pos == string::npos || pos + 1 == type_url.size()) {
+    return false;
   }
-  return false;
+  *full_type_name = type_url.substr(pos + 1);
+  return true;
 }
 
 
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