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

compiled/Filter.h

Index: compiled/Filter.h
===================================================================
new file mode 100644
--- /dev/null
+++ b/compiled/Filter.h
@@ -0,0 +1,52 @@
+#ifndef ADBLOCK_PLUS_FILTER_H
+#define ADBLOCK_PLUS_FILTER_H
+
+#include <memory>
+#include <vector>
+
+#include "String.h"
+#include "debug.h"
+
+class Filter;
+
+typedef std::shared_ptr<Filter> FilterPtr;
+
+class Filter : public std::enable_shared_from_this<Filter>
+{
+protected:
+  String mText;
+
+public:
+  explicit Filter(const String& text);
+  virtual ~Filter() {}
+
+  /* TODO
+  std::vector<Subscription> subscriptions;
+  */
+
+  const String GetText() const
+  {
+    return mText;
+  }
+
+  enum Type
+  {
+    UNKNOWN = 0,
+    INVALID = 1,
+    COMMENT = 2,
+    BLOCKING = 3,
+    WHITELIST = 4,
+    ELEMHIDE = 5,
+    ELEMHIDEEXCEPTION = 6,
+    CSSPROPERTY = 7,
+  };
+
+  virtual Type GetType() const = 0;
+
+  virtual String Serialize();
+
+  static FilterPtr FromText(const String& text);
+  static String Normalize(String& text);
+};
+
+#endif