Issue 4125 - [emscripten] Convert filter classes to C++

compiled/ActiveFilter.h

+#ifndef ADBLOCK_PLUS_ACTIVE_FILTER_H
+#define ADBLOCK_PLUS_ACTIVE_FILTER_H
+
+#include "Filter.h"
+#include "api.h"
+#include "StringMap.h"
+
+class ActiveFilter : public Filter
+{
+private:
+  bool mIgnoreTrailingDot;
+  typedef StringMap<bool> DomainMap;
+  typedef StringSet SitekeySet;
+protected:
+  std::unique_ptr<DomainMap> mDomains;
+  std::unique_ptr<SitekeySet> mSitekeys;
+  void ParseDomains(const String& str, char16_t separator);
+  void AddSitekey(const String& sitekey);
+public:
+  explicit ActiveFilter(const String& text,
+      bool ignoreTrailingDot);
+  FILTER_PROPERTY(bool, mDisabled, GetDisabled, SetDisabled);
+  FILTER_PROPERTY(unsigned int, mHitCount, GetHitCount, SetHitCount);
+  FILTER_PROPERTY(unsigned int, mLastHit, GetLastHit, SetLastHit);
+  bool IsActiveOnDomain(String& docDomain,
+      const String& sitekey);
+  bool IsActiveOnlyOnDomain(String& docDomain);
+  bool IsGeneric();
+  String Serialize();
+};
+
+#endif