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

compiled/shell.js

Index: compiled/shell.js
===================================================================
new file mode 100644
--- /dev/null
+++ b/compiled/shell.js
@@ -0,0 +1,203 @@
+"Compiled from https://hg.adblockplus.org/adblockplus/ with Emscripten {{{EMSCRIPTEN_VERSION}}}";
+
+var sizeofString = 0;
+var FilterNotifier = require("filterNotifier").FilterNotifier;
+
+function createString(str)
+{
+  var length = 0;
+  var buffer = 0;
+  if (str)
+  {
+    length = str.length;
+    buffer = Runtime.stackAlloc(length * 2);
+    for (var i = 0, pointer = (buffer >> 1); i < length; i++, pointer++)
+      HEAP16[pointer] = str.charCodeAt(i);
+  }
+
+  if (!sizeofString)
+    sizeofString = Module._GetSizeofString();
+  var result = Module.Runtime.stackAlloc(sizeofString);
+  Module._InitString(result, buffer, length);
+  return result;
+}
+
+function getStringData(str)
+{
+  var length = Module._GetStringLength(str);
+  var pointer = Module._GetStringData(str) >> 1;
+  return String.fromCharCode.apply(String, HEAP16.slice(pointer, pointer + length));
+}
+
+function convertGetter(call)
+{
+  return function()
+  {
+    return call(this._pointer);
+  };
+}
+
+function convertSetter(call)
+{
+  return function(value)
+  {
+    call(this._pointer, value);
+  }
+}
+
+function convertMethod(call)
+{
+  return function()
+  {
+    var params = Array.slice(arguments);
+    params.unshift(this._pointer);
+    return call.apply(this, params);
+  };
+}
+
+var regexps =
+{
+  _data: Object.create(null),
+  _counter: 0,
+
+  create: function(source, matchCase)
+  {
+    var id = ++this._counter;
+    try
+    {
+      this._data[id] = new RegExp(getStringData(source), matchCase ? "" : "i");
+    }
+    catch (e)
+    {
+      this._data[id] = String(e);
+    }
+    return id;
+  },
+
+  getError: function(id)
+  {
+    if (typeof this._data[id] == "string")
+      return createString(this._data[id]);
+    else
+      return 0;
+  },
+
+  delete: function(id)
+  {
+    delete this._data[id];
+  },
+
+  test: function(id, str)
+  {
+    return this._data[id].test(getStringData(str));
+  }
+};
+
+var Module =
+{
+  preRun: [],
+  postRun: [],
+  print: console.log.bind(console),
+  printErr: console.error.bind(console),
+
+  RegExpFilter_typeMap: {},
+
+  createClass: function(superclass)
+  {
+    var result = function(pointer)
+    {
+      this._pointer = pointer;
+    };
+    if (superclass)
+      result.prototype = Object.create(superclass.prototype);
+    result.prototype.delete = function()
+    {
+      Module._DeletePointer(this._pointer);
+    };
+    return result;
+  },
+
+  wrapCall: function(call)
+  {
+    return function()
+    {
+      var sp = Module.Runtime.stackSave();
+      try
+      {
+        return call.apply(this, arguments);
+      }
+      catch (e)
+      {
+        throw typeof e == "number" ? new Error(Module.AsciiToString(Module._GetException(e))) : e;
+      }
+      finally
+      {
+        Module.Runtime.stackRestore(sp);
+      }
+    };
+  },
+
+  stringArg: function(argPos, call)
+  {
+    return function()
+    {
+      var params = Array.slice(arguments);
+      params[argPos] = createString(params[argPos]);
+      try
+      {
+        return call.apply(this, params);
+      }
+      finally
+      {
+        Module._DestroyString(params[argPos]);
+      }
+    };
+  },
+
+  stringResult: function(call)
+  {
+    return function()
+    {
+      var params = Array.slice(arguments);
+      try
+      {
+        params.unshift(createString());
+        call.apply(this, params);
+        return getStringData(params[0]);
+      }
+      finally
+      {
+        Module._DestroyString(params[0]);
+      }
+    };
+  },
+
+  defineProperty: function(cls, name, getter, setter)
+  {
+    var descriptor =
+    {
+      enumerable: true,
+      get: Module.wrapCall(convertGetter(getter))
+    };
+    if (setter)
+      descriptor.set = Module.wrapCall(convertSetter(setter));
+    Object.defineProperty(cls.prototype, name, descriptor);
+  },
+
+  defineStringProperty: function(cls, name, getter, setter)
+  {
+    Module.defineProperty(cls, name, Module.stringResult(getter),
+        (setter ? Module.stringArg(1, setter) : null));
+  },
+
+  defineMethod: function(cls, name, method)
+  {
+    cls.prototype[name] = Module.wrapCall(convertMethod(method));
+  }
+};
+var ENVIRONMENT_IS_WEB = false, ENVIRONMENT_IS_NODE = false,
+    ENVIRONMENT_IS_WORKER = false, ENVIRONMENT_IS_SHELL = true;
+
+{{BODY}}
+
+Object.assign(exports, Module);