text: /*
   * 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
   * copyright notice, this list of conditions and the following disclaimer
   * in the documentation and/or other materials provided with the
   * distribution.
   *     * Neither the name of Google Inc. nor the names of its
   * contributors may be used to endorse or promote products derived from
   * this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  /**
   * @constructor
   * @implements {WebInspector.ScriptSourceMapping}
   * @param {WebInspector.Workspace} workspace
   * @param {WebInspector.SimpleWorkspaceProvider} networkWorkspaceProvider
   */
  WebInspector.CompilerScriptMapping = function(workspace, networkWorkspaceProvider)
  {
      this._workspace = workspace;
      this._workspace.addEventListener(WebInspector.UISourceCodeProvider.Events.UISourceCodeAdded, this._uiSourceCodeAddedToWorkspace, this);
      this._networkWorkspaceProvider = networkWorkspaceProvider;
      /** @type {Object.<string, WebInspector.SourceMap>} */
      this._sourceMapForSourceMapURL = {};
      /** @type {Object.<string, WebInspector.SourceMap>} */
      this._sourceMapForScriptId = {};
      this._scriptForSourceMap = new Map();
      /** @type {Object.<string, WebInspector.SourceMap>} */
      this._sourceMapForURL = {};
      WebInspector.debuggerModel.addEventListener(WebInspector.DebuggerModel.Events.GlobalObjectCleared, this._debuggerReset, this);
  }
  
  WebInspector.CompilerScriptMapping.prototype = {
      /**
       * @param {WebInspector.RawLocation} rawLocation
       * @return {WebInspector.UILocation}
       */
      rawLocationToUILocation: function(rawLocation)
      {
          var debuggerModelLocation = /** @type {WebInspector.DebuggerModel.Location} */ (rawLocation);
          var sourceMap = this._sourceMapForScriptId[debuggerModelLocation.scriptId];
          var lineNumber = debuggerModelLocation.lineNumber;
          var columnNumber = debuggerModelLocation.columnNumber || 0;
          var entry = sourceMap.findEntry(lineNumber, columnNumber);
          if (!entry || entry.length === 2)
              return null;
          var url = entry[2];
          var uiSourceCode = this._workspace.uiSourceCodeForURL(url);
          if (!uiSourceCode)
              return null;
          return new WebInspector.UILocation(uiSourceCode, entry[3], entry[4]);
      },
  
      /**
       * @param {WebInspector.UISourceCode} uiSourceCode
       * @param {number} lineNumber
       * @param {number} columnNumber
       * @return {WebInspector.DebuggerModel.Location}
       */
      uiLocationToRawLocation: function(uiSourceCode, lineNumber, columnNumber)
      {
          if (!uiSourceCode.url)
              return null;
          var sourceMap = this._sourceMapForURL[uiSourceCode.url];
          if (!sourceMap)
              return null;
          var entry = sourceMap.findEntryReversed(uiSourceCode.url, lineNumber);
          return WebInspector.debuggerModel.createRawLocation(this._scriptForSourceMap.get(sourceMap), entry[0], entry[1]);
      },
  
      /**
       * @return {boolean}
       */
      isIdentity: function()
      {
          return false;
      },
  
      /**
       * @param {WebInspector.Script} script
       */
      addScript: function(script)
      {
          var sourceMap = this.loadSourceMapForScript(script);
          if (!sourceMap)
              return;
  
          if (this._scriptForSourceMap.get(sourceMap)) {
              this._sourceMapForScriptId[script.scriptId] = sourceMap;
              script.pushSourceMapping(this);
              return;
          }
  
          this._sourceMapForScriptId[script.scriptId] = sourceMap;
          this._scriptForSourceMap.put(sourceMap, script);
  
          var sourceURLs = sourceMap.sources();
          for (var i = 0; i < sourceURLs.length; ++i) {
              var sourceURL = sourceURLs[i];
              if (this._sourceMapForURL[sourceURL])
                  continue;
              this._sourceMapForURL[sourceURL] = sourceMap;
              if (!this._workspace.hasMappingForURL(sourceURL) && !this._workspace.uiSourceCodeForURL(sourceURL)) {
                  var sourceContent = sourceMap.sourceContent(sourceURL);
                  var contentProvider;
                  if (sourceContent)
                      contentProvider = new WebInspector.StaticContentProvider(WebInspector.resourceTypes.Script, sourceContent);
                  else
                      contentProvider = new WebInspector.CompilerSourceMappingContentProvider(sourceURL);
                  this._networkWorkspaceProvider.addFileForURL(sourceURL, contentProvider, true);
              }
              var uiSourceCode = this._workspace.uiSourceCodeForURL(sourceURL);
              if (uiSourceCode) {
                  this._bindUISourceCode(uiSourceCode);
                  uiSourceCode.isContentScript = script.isContentScript;
              }
          }
          script.pushSourceMapping(this);
      },
  
      /**
       * @param {WebInspector.UISourceCode} uiSourceCode
       */
      _bindUISourceCode: function(uiSourceCode)
      {
          uiSourceCode.setSourceMapping(this);
      },
  
      /**
       * @param {WebInspector.Event} event
       */
      _uiSourceCodeAddedToWorkspace: function(event)
      {
          var uiSourceCode = /** @type {WebInspector.UISourceCode} */ (event.data);
          if (!uiSourceCode.url || !this._sourceMapForURL[uiSourceCode.url])
              return;
          this._bindUISourceCode(uiSourceCode);
      },
  
      /**
       * @param {WebInspector.Script} script
       * @return {?WebInspector.SourceMap}
       */
      loadSourceMapForScript: function(script)
      {
          // script.sourceURL can be a random string, but is generally an absolute path -> complete it to inspected page url for
          // relative links.
          if (!script.sourceMapURL)
              return null;
          var scriptURL = WebInspector.ParsedURL.completeURL(WebInspector.inspectedPageURL, script.sourceURL);
          if (!scriptURL)
              return null;
          var sourceMapURL = WebInspector.ParsedURL.completeURL(scriptURL, script.sourceMapURL);
          if (!sourceMapURL)
              return null;
          var sourceMap = this._sourceMapForSourceMapURL[sourceMapURL];
          if (sourceMap)
              return sourceMap;
  
          sourceMap = WebInspector.SourceMap.load(sourceMapURL, scriptURL);
          if (!sourceMap)
              return null;
          this._sourceMapForSourceMapURL[sourceMapURL] = sourceMap;
          return sourceMap;
      },
  
      _debuggerReset: function()
      {
          this._sourceMapForSourceMapURL = {};
          this._sourceMapForScriptId = {};
          this._scriptForSourceMap = new Map();
          this._sourceMapForURL = {};
      }
  }
  