DevTools: [SASS] implement CSS AST-builder.

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

 /**
  * Copyright 2014 The Chromium Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 /**
  * @constructor
  * @extends {WebInspector.Object}
  */
@@ skipping 24 matching lines @@
      * @param {string} text
      * @param {function(!Array.<!WebInspector.CSSParser.Rule>)=} callback
      */
     parse: function(text, callback)
     {
         this._lock();
         this._finishedCallback = callback;
         this._innerParse(text);
     },
 
+    /**
+     * @param {string} text
+     * @return {!Promise<!Array.<!WebInspector.CSSParser.Rule>>}
+     */
+    parsePromise: function(text)
+    {
+        return new Promise(promiseConstructor.bind(this));
+
+        /**
+         * @param {function()} succ
+         * @param {function()} fail
+         * @this {WebInspector.CSSParser}
+         */
+        function promiseConstructor(succ, fail)
+        {
+            this.parse(text, succ);
+        }
+    },
+
     dispose: function()
     {
         if (this._worker) {
             this._worker.terminate();
             delete this._worker;
         }
     },
 
     /**
      * @return {!Array.<!WebInspector.CSSParser.Rule>}
@@ skipping 84 matching lines @@
     this.nameRange;
     /** @type {string} */
     this.value;
     /** @type {!WebInspector.CSSParser.Range} */
     this.valueRange;
     /** @type {!WebInspector.CSSParser.Range} */
     this.range;
     /** @type {(boolean|undefined)} */
     this.disabled;
 }