DevTools: [SASS] introduce workspace/cssModel adapter for SASS processor.

third_party/WebKit/Source/devtools/front_end/sass/SASSSupport.js

 // Copyright 2015 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.
 
 WebInspector.SASSSupport = {}
 
 /**
  * @param {!WebInspector.CSSParser} parser
  * @param {string} url
  * @param {string} text
@@ skipping 576 matching lines @@
     this.type = type;
     this.oldRule = oldRule;
     this.newRule = newRule;
     this.oldPropertyIndex = oldPropertyIndex;
     this.newPropertyIndex = newPropertyIndex;
 }
 
 /**
  * @constructor
  * @param {string} url
+ * @param {!WebInspector.SASSSupport.AST} oldAST
+ * @param {!WebInspector.SASSSupport.AST} newAST
  * @param {!Map<!WebInspector.SASSSupport.TextNode, !WebInspector.SASSSupport.TextNode>} mapping
  * @param {!Array<!WebInspector.SASSSupport.PropertyChange>} changes
  */
-WebInspector.SASSSupport.ASTDiff = function(url, mapping, changes)
+WebInspector.SASSSupport.ASTDiff = function(url, oldAST, newAST, mapping, changes)
 {
     this.url = url;
     this.mapping = mapping;
     this.changes = changes;
+    this.oldAST = oldAST;
+    this.newAST = newAST;
 }
 
 /**
  * @param {!WebInspector.SASSSupport.AST} oldAST
  * @param {!WebInspector.SASSSupport.AST} newAST
  * @return {!WebInspector.SASSSupport.ASTDiff}
  */
 WebInspector.SASSSupport.diffModels = function(oldAST, newAST)
 {
     console.assert(oldAST.rules.length === newAST.rules.length, "Not implemented for rule diff.");
     console.assert(oldAST.document.url === newAST.document.url, "Diff makes sense for models with the same url.");
     var T = WebInspector.SASSSupport.PropertyChangeType;
     var changes = [];
     /** @type {!Map<!WebInspector.SASSSupport.TextNode, !WebInspector.SASSSupport.TextNode>} */
     var mapping = new Map();
     for (var i = 0; i < oldAST.rules.length; ++i) {
         var oldRule = oldAST.rules[i];
         var newRule = newAST.rules[i];
         computeRuleDiff(mapping, oldRule, newRule);
     }
-    return new WebInspector.SASSSupport.ASTDiff(oldAST.document.url, mapping, changes);
+    return new WebInspector.SASSSupport.ASTDiff(oldAST.document.url, oldAST, newAST, mapping, changes);
 
     /**
      * @param {!WebInspector.SASSSupport.PropertyChangeType} type
      * @param {!WebInspector.SASSSupport.Rule} oldRule
      * @param {!WebInspector.SASSSupport.Rule} newRule
      * @param {number} oldPropertyIndex
      * @param {number} newPropertyIndex
      */
     function addChange(type, oldRule, newRule, oldPropertyIndex, newPropertyIndex)
     {
@@ skipping 46 matching lines @@
         mapping.set(oldProperty.name, newProperty.name);
         mapping.set(oldProperty.value, newProperty.value);
         if (oldProperty.name.text.trim() !== newProperty.name.text.trim())
             addChange(T.NameChanged, oldRule, newRule, oldPropertyIndex, newPropertyIndex);
         if (oldProperty.value.text.trim() !== newProperty.value.text.trim())
             addChange(T.ValueChanged, oldRule, newRule, oldPropertyIndex, newPropertyIndex);
         if (oldProperty.disabled !== newProperty.disabled)
             addChange(T.PropertyToggled, oldRule, newRule, oldPropertyIndex, newPropertyIndex);
     }
 }