Issue 5034 - Part 4: JsEngine::Evaluate() return a JsValue

src/FilterEngine.cpp

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2017 eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 38 matching lines @@
   else if (className == "ElemHideException")
     return TYPE_ELEMHIDE_EXCEPTION;
   else if (className == "CommentFilter")
     return TYPE_COMMENT;
   else
     return TYPE_INVALID;
 }
 
 bool Filter::IsListed() const
 {
-  JsValuePtr func = jsEngine->Evaluate("API.isListedFilter");
-  return func->Call(*this).AsBool();
+  JsValue func = jsEngine->Evaluate("API.isListedFilter");
+  return func.Call(*this).AsBool();
 }
 
 void Filter::AddToList()
 {
-  JsValuePtr func = jsEngine->Evaluate("API.addFilterToList");
-  func->Call(*this);
+  JsValue func = jsEngine->Evaluate("API.addFilterToList");
+  func.Call(*this);
 }
 
 void Filter::RemoveFromList()
 {
-  JsValuePtr func = jsEngine->Evaluate("API.removeFilterFromList");
-  func->Call(*this);
+  JsValue func = jsEngine->Evaluate("API.removeFilterFromList");
+  func.Call(*this);
 }
 
 bool Filter::operator==(const Filter& filter) const
 {
   return GetProperty("text").AsString() == filter.GetProperty("text").AsString();
 }
 
 Subscription::Subscription(JsValue&& value)
     : JsValue(std::move(value))
 {
   if (!IsObject())
     throw std::runtime_error("JavaScript value is not an object");
 }
 
 bool Subscription::IsListed() const
 {
-  JsValuePtr func = jsEngine->Evaluate("API.isListedSubscription");
-  return func->Call(*this).AsBool();
+  JsValue func = jsEngine->Evaluate("API.isListedSubscription");
+  return func.Call(*this).AsBool();
 }
 
 void Subscription::AddToList()
 {
-  JsValuePtr func = jsEngine->Evaluate("API.addSubscriptionToList");
-  func->Call(*this);
+  JsValue func = jsEngine->Evaluate("API.addSubscriptionToList");
+  func.Call(*this);
 }
 
 void Subscription::RemoveFromList()
 {
-  JsValuePtr func = jsEngine->Evaluate("API.removeSubscriptionFromList");
-  func->Call(*this);
+  JsValue func = jsEngine->Evaluate("API.removeSubscriptionFromList");
+  func.Call(*this);
 }
 
 void Subscription::UpdateFilters()
 {
-  JsValuePtr func = jsEngine->Evaluate("API.updateSubscription");
-  func->Call(*this);
+  JsValue func = jsEngine->Evaluate("API.updateSubscription");
+  func.Call(*this);
 }
 
 bool Subscription::IsUpdating() const
 {
-  JsValuePtr func = jsEngine->Evaluate("API.isSubscriptionUpdating");
-  return func->Call(*this).AsBool();
+  JsValue func = jsEngine->Evaluate("API.isSubscriptionUpdating");
+  return func.Call(*this).AsBool();
 }
 
 bool Subscription::IsAA() const
 {
-  return jsEngine->Evaluate("API.isAASubscription")->Call(*this).AsBool();
+  return jsEngine->Evaluate("API.isAASubscription").Call(*this).AsBool();
 }
 
 bool Subscription::operator==(const Subscription& subscription) const
 {
   return GetProperty("url").AsString() == subscription.GetProperty("url").AsString();
 }
 
 namespace
 {
   class Sync
@@ skipping 141 matching lines @@
   throw std::invalid_argument("Cannot convert argument to ContentType");
 }
 
 bool FilterEngine::IsFirstRun() const
 {
   return firstRun;
 }
 
 FilterPtr FilterEngine::GetFilter(const std::string& text) const
 {
-  JsValuePtr func = jsEngine->Evaluate("API.getFilterFromText");
-  return FilterPtr(new Filter(func->Call(jsEngine->NewValue(text))));
+  JsValue func = jsEngine->Evaluate("API.getFilterFromText");
+  return FilterPtr(new Filter(func.Call(jsEngine->NewValue(text))));
 }
 
 SubscriptionPtr FilterEngine::GetSubscription(const std::string& url) const
 {
-  JsValuePtr func = jsEngine->Evaluate("API.getSubscriptionFromUrl");
-  return SubscriptionPtr(new Subscription(func->Call(jsEngine->NewValue(url))));
+  JsValue func = jsEngine->Evaluate("API.getSubscriptionFromUrl");
+  return SubscriptionPtr(new Subscription(func.Call(jsEngine->NewValue(url))));
 }
 
 std::vector<FilterPtr> FilterEngine::GetListedFilters() const
 {
-  JsValuePtr func = jsEngine->Evaluate("API.getListedFilters");
-  JsValueList values = func->Call().AsList();
+  JsValue func = jsEngine->Evaluate("API.getListedFilters");
+  JsValueList values = func.Call().AsList();
   std::vector<FilterPtr> result;
   for (JsValueList::iterator it = values.begin(); it != values.end(); it++)
     result.push_back(FilterPtr(new Filter(std::move(*it))));
   return result;
 }
 
 std::vector<SubscriptionPtr> FilterEngine::GetListedSubscriptions() const
 {
-  JsValuePtr func = jsEngine->Evaluate("API.getListedSubscriptions");
-  JsValueList values = func->Call().AsList();
+  JsValue func = jsEngine->Evaluate("API.getListedSubscriptions");
+  JsValueList values = func.Call().AsList();
   std::vector<SubscriptionPtr> result;
   for (JsValueList::iterator it = values.begin(); it != values.end(); it++)
     result.push_back(SubscriptionPtr(new Subscription(std::move(*it))));
   return result;
 }
 
 std::vector<SubscriptionPtr> FilterEngine::FetchAvailableSubscriptions() const
 {
-  JsValuePtr func = jsEngine->Evaluate("API.getRecommendedSubscriptions");
-  JsValueList values = func->Call().AsList();
+  JsValue func = jsEngine->Evaluate("API.getRecommendedSubscriptions");
+  JsValueList values = func.Call().AsList();
   std::vector<SubscriptionPtr> result;
   for (JsValueList::iterator it = values.begin(); it != values.end(); it++)
     result.push_back(SubscriptionPtr(new Subscription(std::move(*it))));
   return result;
 }
 
 void FilterEngine::SetAAEnabled(bool enabled)
 {
-  jsEngine->Evaluate("API.setAASubscriptionEnabled")->Call(jsEngine->NewValue(enabled));
+  jsEngine->Evaluate("API.setAASubscriptionEnabled").Call(jsEngine->NewValue(enabled));
 }
 
 bool FilterEngine::IsAAEnabled() const
 {
-  return jsEngine->Evaluate("API.isAASubscriptionEnabled()")->AsBool();
+  return jsEngine->Evaluate("API.isAASubscriptionEnabled()").AsBool();
 }
 
 std::string FilterEngine::GetAAUrl() const
 {
   return GetPref("subscriptions_exceptionsurl").AsString();
 }
 
 void FilterEngine::ShowNextNotification(const std::string& url) const
 {
-  JsValuePtr func = jsEngine->Evaluate("API.showNextNotification");
+  JsValue func = jsEngine->Evaluate("API.showNextNotification");
   JsValueList params;
   if (!url.empty())
   {
     params.push_back(jsEngine->NewValue(url));
   }
-  func->Call(params);
+  func.Call(params);
 }
 
 void FilterEngine::SetShowNotificationCallback(const ShowNotificationCallback& value)
 {
   if (!value)
     return;
 
   jsEngine->SetEventCallback("_showNotification",
     std::bind(&FilterEngine::ShowNotification, this, value,
               std::placeholders::_1));
@@ skipping 42 matching lines @@
 bool FilterEngine::IsElemhideWhitelisted(const std::string& url,
     const std::vector<std::string>& documentUrls) const
 {
     return !!GetWhitelistingFilter(url, CONTENT_TYPE_ELEMHIDE, documentUrls);
 }
 
 AdblockPlus::FilterPtr FilterEngine::CheckFilterMatch(const std::string& url,
     ContentTypeMask contentTypeMask,
     const std::string& documentUrl) const
 {
-  JsValuePtr func = jsEngine->Evaluate("API.checkFilterMatch");
+  JsValue func = jsEngine->Evaluate("API.checkFilterMatch");
   JsValueList params;
   params.push_back(jsEngine->NewValue(url));
   params.push_back(jsEngine->NewValue(contentTypeMask));
   params.push_back(jsEngine->NewValue(documentUrl));
-  JsValue result = func->Call(params);
+  JsValue result = func.Call(params);
   if (!result.IsNull())
     return FilterPtr(new Filter(std::move(result)));
   else
     return FilterPtr();
 }
 
 std::vector<std::string> FilterEngine::GetElementHidingSelectors(const std::string& domain) const
 {
-  JsValuePtr func = jsEngine->Evaluate("API.getElementHidingSelectors");
-  JsValueList result = func->Call(jsEngine->NewValue(domain)).AsList();
+  JsValue func = jsEngine->Evaluate("API.getElementHidingSelectors");
+  JsValueList result = func.Call(jsEngine->NewValue(domain)).AsList();
   std::vector<std::string> selectors;
   for (const auto& r: result)
     selectors.push_back(r.AsString());
   return selectors;
 }
 
 JsValue FilterEngine::GetPref(const std::string& pref) const
 {
-  JsValuePtr func = jsEngine->Evaluate("API.getPref");
-  return func->Call(jsEngine->NewValue(pref));
+  JsValue func = jsEngine->Evaluate("API.getPref");
+  return func.Call(jsEngine->NewValue(pref));
 }
 
 void FilterEngine::SetPref(const std::string& pref, const JsValue& value)
 {
-  JsValuePtr func = jsEngine->Evaluate("API.setPref");
+  JsValue func = jsEngine->Evaluate("API.setPref");
   JsValueList params;
   params.push_back(jsEngine->NewValue(pref));
   params.push_back(value);
-  func->Call(params);
+  func.Call(params);
 }
 
 std::string FilterEngine::GetHostFromURL(const std::string& url) const
 {
-  JsValuePtr func = jsEngine->Evaluate("API.getHostFromUrl");
-  return func->Call(jsEngine->NewValue(url)).AsString();
+  JsValue func = jsEngine->Evaluate("API.getHostFromUrl");
+  return func.Call(jsEngine->NewValue(url)).AsString();
 }
 
 void FilterEngine::SetUpdateAvailableCallback(
     const FilterEngine::UpdateAvailableCallback& callback)
 {
   jsEngine->SetEventCallback("updateAvailable",
       std::bind(&FilterEngine::UpdateAvailable, this, callback,
                 std::placeholders::_1));
 }
 
 void FilterEngine::RemoveUpdateAvailableCallback()
 {
   jsEngine->RemoveEventCallback("updateAvailable");
 }
 
 void FilterEngine::UpdateAvailable(
     const FilterEngine::UpdateAvailableCallback& callback, const JsValueList& params) const
 {
   if (params.size() >= 1 && !params[0].IsNull())
     callback(params[0].AsString());
 }
 
 void FilterEngine::ForceUpdateCheck(
     const FilterEngine::UpdateCheckDoneCallback& callback)
 {
-  JsValuePtr func = jsEngine->Evaluate("API.forceUpdateCheck");
+  JsValue func = jsEngine->Evaluate("API.forceUpdateCheck");
   JsValueList params;
   if (callback)
   {
     std::string eventName = "_updateCheckDone" + std::to_string(++updateCheckId);
     jsEngine->SetEventCallback(eventName, std::bind(&FilterEngine::UpdateCheckDone,
       this, eventName, callback, std::placeholders::_1));
     params.push_back(jsEngine->NewValue(eventName));
   }
-  func->Call(params);
+  func.Call(params);
 }
 
 void FilterEngine::UpdateCheckDone(const std::string& eventName,
     const FilterEngine::UpdateCheckDoneCallback& callback, const JsValueList& params)
 {
   jsEngine->RemoveEventCallback(eventName);
 
   std::string error(params.size() >= 1 && !params[0].IsNull() ? params[0].AsString() : "");
   callback(error);
 }
@@ skipping 41 matching lines @@
   }
   callback(NotificationPtr(new Notification(JsValue(params[0]))));
 }
 
 
 int FilterEngine::CompareVersions(const std::string& v1, const std::string& v2) const
 {
   JsValueList params;
   params.push_back(jsEngine->NewValue(v1));
   params.push_back(jsEngine->NewValue(v2));
-  JsValuePtr func = jsEngine->Evaluate("API.compareVersions");
-  return func->Call(params).AsInt();
+  JsValue func = jsEngine->Evaluate("API.compareVersions");
+  return func.Call(params).AsInt();
 }
 
 FilterPtr FilterEngine::GetWhitelistingFilter(const std::string& url,
   ContentTypeMask contentTypeMask, const std::string& documentUrl) const
 {
   FilterPtr match = Matches(url, contentTypeMask, documentUrl);
   if (match && match->GetType() == Filter::TYPE_EXCEPTION)
   {
     return match;
   }
@@ skipping 17 matching lines @@
     FilterPtr filter = GetWhitelistingFilter(currentUrl, contentTypeMask, parentUrl);
     if (filter)
     {
       return filter;
     }
     currentUrl = parentUrl;
   }
   while (urlIterator != documentUrls.end());
   return FilterPtr();
 }