[DevTools] Auto completion for proxy uses proxy target object

third_party/WebKit/Source/devtools/front_end/sdk/RuntimeModel.js

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 508 matching lines @@
          * @this {WebInspector.ExecutionContext}
          */
         function evaluated(result, wasThrown)
         {
             if (!result || wasThrown) {
                 completionsReadyCallback([]);
                 return;
             }
 
             /**
+             * @param {!WebInspector.RemoteObject} object
+             * @return {!Promise<?WebInspector.RemoteObject>}
+             */
+            function extractTarget(object)
+            {
+                if (object.type !== "object" || object.subtype !== "proxy")
+                    return Promise.resolve(/** @type {?WebInspector.RemoteObject} */(object));
+                var callback;
+                var promise = new Promise(fullfill => callback = fullfill);
+                object.getOwnProperties(extractTargetFromProperties);

[lushnikov, 2016/05/05 01:06:03]

return object.getOwnPropertiesPromise()
   .then(findTarget)
   .then(extractTarget);

[kozy, 2016/05/05 01:35:22]

Done.

+                return promise;
+
+                /**
+                 * @param {?Array<!WebInspector.RemoteObjectProperty>} properties
+                 * @param {?Array.<!WebInspector.RemoteObjectProperty>} internalProperties
+                 */
+                function extractTargetFromProperties(properties, internalProperties)
+                {
+                    internalProperties = internalProperties || [];

[lushnikov, 2016/05/05 01:06:04]

var target = internalProperties.find(property => property.name ===
"[[Target]]");
return target || null;

[kozy, 2016/05/05 01:35:22]

Done.

+                    for (var property of internalProperties) {
+                        if (property.name === "[[Target]]") {
+                            extractTarget(property.value).then(callback);
+                            return;
+                        }
+                    }
+                    callback(null);
+                }
+            }
+
+            /**
+             * @param {?WebInspector.RemoteObject} object
+             * @return {!Promise<?Object>}
+             */
+            function completionsForObject(object)
+            {
+                if (!object)
+                    return Promise.resolve(/** @type {?Object} */(null));
+                var callback;
+                var promise = new Promise(fullfill => callback = fullfill);
+                object.callFunctionJSON(getCompletions, [WebInspector.RemoteObject.toCallArgument(object.subtype)], callback);
+                return promise;
+            }
+
+            /**
              * @param {string=} type
              * @suppressReceiverCheck
-             * @this {WebInspector.ExecutionContext}
+             * @this {*}
              */
             function getCompletions(type)
             {
                 var object;
                 if (type === "string")
                     object = new String("");
                 else if (type === "number")
                     object = new Number(0);
                 else if (type === "boolean")
                     object = new Boolean(false);
                 else
                     object = this;
 
                 var resultSet = {};
                 try {
                     for (var o = object; o; o = o.__proto__) {
                         if (type === "array" && o === object && ArrayBuffer.isView(o) && o.length > 9999)
                             continue;
-                        var names = Object.getOwnPropertyNames(o);
+                        var names = Object.getOwnPropertyNames(/** @type{!Object} */(o));
                         var isArray = Array.isArray(o);
                         for (var i = 0; i < names.length; ++i) {
                             // Skip array elements indexes.
                             if (isArray && /^[0-9]/.test(names[i]))
                                 continue;
                             resultSet[names[i]] = true;
                         }
                     }
                 } catch (e) {
                 }
                 return resultSet;
             }
 
-            if (result.type === "object" || result.type === "function")
-                result.callFunctionJSON(getCompletions, [WebInspector.RemoteObject.toCallArgument(result.subtype)], receivedPropertyNames.bind(this));
+            if (result.type === "object")
+                extractTarget(result).then(completionsForObject).then(receivedPropertyNames.bind(this));
             else if (result.type === "string" || result.type === "number" || result.type === "boolean")
                 this.evaluate("(" + getCompletions + ")(\"" + result.type + "\")", "completion", false, true, true, false, false, receivedPropertyNamesFromEval.bind(this));
         }
 
         /**
          * @param {?WebInspector.RemoteObject} notRelevant
          * @param {boolean} wasThrown
          * @param {?RuntimeAgent.RemoteObject=} result
          * @this {WebInspector.ExecutionContext}
          */
         function receivedPropertyNamesFromEval(notRelevant, wasThrown, result)
         {
             if (result && !wasThrown)
-                receivedPropertyNames.call(this, result.value);
+                receivedPropertyNames.call(this, /** @type {!Object} */(result.value));
             else
                 completionsReadyCallback([]);
         }
 
         /**
+         * @param {?Object} propertyNames
          * @this {WebInspector.ExecutionContext}
          */
         function receivedPropertyNames(propertyNames)
         {
             this.target().runtimeAgent().releaseObjectGroup("completion");
             if (!propertyNames) {
                 completionsReadyCallback([]);
                 return;
             }
             var includeCommandLineAPI = (!dotNotation && !bracketNotation);
@@ skipping 218 matching lines @@
     /**
      * @param {string} listenerType
      */
     setListenerType: function(listenerType)
     {
         this._listenerType = listenerType;
     },
 
     __proto__: WebInspector.SDKObject.prototype
 }