Issue 5143 - Convert ElemHideEmulation to C++

compiled/ElemHideEmulation.h

Index: compiled/ElemHideEmulation.h
===================================================================
new file mode 100644
--- /dev/null
+++ b/compiled/ElemHideEmulation.h
@@ -0,0 +1,67 @@
+/*
+ * This file is part of Adblock Plus <https://adblockplus.org/>,
+ * Copyright (C) 2006-present 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
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <vector>
+
+#include "bindings/runtime.h"
+#include "intrusive_ptr.h"
+#include "filter/ElemHideBase.h"
+
+class ElemHide;
+
+class ElemHideEmulation_FilterList : public ref_counted
+{
+  std::vector<ElemHideBasePtr> mFilters;
+public:
+  size_t BINDINGS_EXPORTED GetFilterCount() const
+  {
+    return mFilters.size();
+  }
+
+  ElemHideBase* BINDINGS_EXPORTED FilterAt(size_t index)
+  {
+    if (index >= mFilters.size())
+      return nullptr;
+
+    ElemHideBasePtr result(mFilters[index]);
+    return result.release();
+  }
+
+  void push_back(const ElemHideBasePtr& filter)
+  {
+    mFilters.push_back(filter);
+  }
+
+};
+
+class ElemHideEmulation : public ref_counted
+{
+  StringMap<ElemHideBasePtr> mFilters;
+
+public:
+  static ElemHideEmulation* BINDINGS_EXPORTED Create()
+  {
+    return new ElemHideEmulation();
+  }
+
+  void BINDINGS_EXPORTED Add(ElemHideBase&);
+  void BINDINGS_EXPORTED Remove(ElemHideBase&);
+  void BINDINGS_EXPORTED Clear();
+  ElemHideEmulation_FilterList* BINDINGS_EXPORTED GetRulesForDomain(const ElemHide&, DependentString&);
+};