Devtools: resolve expressions in minified scripts with sourcemaps

third_party/WebKit/Source/devtools/front_end/sdk/SourceMap.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 210 matching lines @@
         return entry;
     },
 
     /**
      * @param {string} sourceURL
      * @param {number} lineNumber
      * @return {?WebInspector.SourceMap.Entry}
      */
     firstSourceLineMapping: function(sourceURL, lineNumber)
     {
-        var mappings = this._reversedMappings(sourceURL);
+        var mappings = this.reversedMappings(sourceURL);
         var index = mappings.lowerBound(lineNumber, lineComparator);
         if (index >= mappings.length || mappings[index].sourceLineNumber !== lineNumber)
             return null;
         return mappings[index];
 
         /**
          * @param {number} lineNumber
          * @param {!WebInspector.SourceMap.Entry} mapping
          * @return {number}
          */
         function lineComparator(lineNumber, mapping)
         {
             return lineNumber - mapping.sourceLineNumber;
         }
     },
 
     /**
      * @return {!Array<!WebInspector.SourceMap.Entry>}
      */
     mappings: function()
     {
         return this._mappings;
     },
 
     /**
      * @param {string} sourceURL
      * @return {!Array.<!WebInspector.SourceMap.Entry>}
      */
-    _reversedMappings: function(sourceURL)
+    reversedMappings: function(sourceURL)
     {
         var mappings = this._reverseMappingsBySourceURL.get(sourceURL);
         if (!mappings)
             return [];
         if (!mappings._sorted) {
             mappings.sort(sourceMappingComparator);
             mappings._sorted = true;
         }
         return mappings;
 
         /**
          * @param {!WebInspector.SourceMap.Entry} a
          * @param {!WebInspector.SourceMap.Entry} b
          * @return {number}
          */
         function sourceMappingComparator(a, b)
         {
             if (a.sourceLineNumber !== b.sourceLineNumber)
                 return a.sourceLineNumber - b.sourceLineNumber;
-            return a.sourceColumnNumber - b.sourceColumnNumber;
+            if (a.sourceColumnNumber !== b.sourceColumnNumber)
+                return a.sourceColumnNumber - b.sourceColumnNumber;
+
+            if (a.lineNumber !== b.lineNumber)
+                return a.lineNumber - b.lineNumber;
+
+            return a.columnNumber - b.columnNumber;
         }
     },
 
     /**
      * @param {!SourceMapV3} map
      * @param {number} lineNumber
      * @param {number} columnNumber
      */
     _parseMap: function(map, lineNumber, columnNumber)
     {
@@ skipping 149 matching lines @@
  */
 WebInspector.SourceMap.Entry = function(lineNumber, columnNumber, sourceURL, sourceLineNumber, sourceColumnNumber, name)
 {
     this.lineNumber = lineNumber;
     this.columnNumber = columnNumber;
     this.sourceURL = sourceURL;
     this.sourceLineNumber = sourceLineNumber;
     this.sourceColumnNumber = sourceColumnNumber;
     this.name = name;
 }