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.
   */
  /**
   * @implements {Bindings.DebuggerSourceMapping}
   * @unrestricted
   */
  export default class DefaultScriptMapping {
    /**
     * @param {!SDK.DebuggerModel} debuggerModel
     * @param {!Workspace.Workspace} workspace
     * @param {!Bindings.DebuggerWorkspaceBinding} debuggerWorkspaceBinding
     */
    constructor(debuggerModel, workspace, debuggerWorkspaceBinding) {
      this._debuggerModel = debuggerModel;
      this._debuggerWorkspaceBinding = debuggerWorkspaceBinding;
      this._project = new Bindings.ContentProviderBasedProject(
          workspace, 'debugger:' + debuggerModel.target().id(), Workspace.projectTypes.Debugger, '',
          true /* isServiceProject */);
      this._eventListeners = [
        debuggerModel.addEventListener(SDK.DebuggerModel.Events.GlobalObjectCleared, this._debuggerReset, this),
        debuggerModel.addEventListener(SDK.DebuggerModel.Events.ParsedScriptSource, this._parsedScriptSource, this),
        debuggerModel.addEventListener(
            SDK.DebuggerModel.Events.DiscardedAnonymousScriptSource, this._discardedScriptSource, this)
      ];
      this._scriptSymbol = Symbol('symbol');
    }
  
    /**
     * @param {!Workspace.UISourceCode} uiSourceCode
     * @return {?SDK.Script}
     */
    static scriptForUISourceCode(uiSourceCode) {
      const scripts = uiSourceCode[_scriptsSymbol];
      return scripts ? scripts.values().next().value : null;
    }
  
    /**
     * @override
     * @param {!SDK.DebuggerModel.Location} rawLocation
     * @return {?Workspace.UILocation}
     */
    rawLocationToUILocation(rawLocation) {
      const script = rawLocation.script();
      if (!script) {
        return null;
      }
      const uiSourceCode = script[_uiSourceCodeSymbol];
      const lineNumber = rawLocation.lineNumber - (script.isInlineScriptWithSourceURL() ? script.lineOffset : 0);
      let columnNumber = rawLocation.columnNumber || 0;
      if (script.isInlineScriptWithSourceURL() && !lineNumber && columnNumber) {
        columnNumber -= script.columnOffset;
      }
      return uiSourceCode.uiLocation(lineNumber, columnNumber);
    }
  
    /**
     * @override
     * @param {!Workspace.UISourceCode} uiSourceCode
     * @param {number} lineNumber
     * @param {number} columnNumber
     * @return {!Array<!SDK.DebuggerModel.Location>}
     */
    uiLocationToRawLocations(uiSourceCode, lineNumber, columnNumber) {
      const script = uiSourceCode[this._scriptSymbol];
      if (!script) {
        return [];
      }
      if (script.isInlineScriptWithSourceURL()) {
        return [this._debuggerModel.createRawLocation(
            script, lineNumber + script.lineOffset, lineNumber ? columnNumber : columnNumber + script.columnOffset)];
      }
      return [this._debuggerModel.createRawLocation(script, lineNumber, columnNumber)];
    }
  
    /**
     * @param {!Common.Event} event
     */
    _parsedScriptSource(event) {
      const script = /** @type {!SDK.Script} */ (event.data);
      const name = Common.ParsedURL.extractName(script.sourceURL);
      const url = 'debugger:///VM' + script.scriptId + (name ? ' ' + name : '');
  
      const uiSourceCode = this._project.createUISourceCode(url, Common.resourceTypes.Script);
      uiSourceCode[this._scriptSymbol] = script;
      if (!uiSourceCode[_scriptsSymbol]) {
        uiSourceCode[_scriptsSymbol] = new Set([script]);
      } else {
        uiSourceCode[_scriptsSymbol].add(script);
      }
      script[_uiSourceCodeSymbol] = uiSourceCode;
      this._project.addUISourceCodeWithProvider(uiSourceCode, script, null, 'text/javascript');
      this._debuggerWorkspaceBinding.updateLocations(script);
    }
  
    /**
     * @param {!Common.Event} event
     */
    _discardedScriptSource(event) {
      const script = /** @type {!SDK.Script} */ (event.data);
      const uiSourceCode = script[_uiSourceCodeSymbol];
      if (!uiSourceCode) {
        return;
      }
      delete script[_uiSourceCodeSymbol];
      delete uiSourceCode[this._scriptSymbol];
      uiSourceCode[_scriptsSymbol].delete(script);
      if (!uiSourceCode[_scriptsSymbol].size) {
        delete uiSourceCode[_scriptsSymbol];
      }
      this._project.removeUISourceCode(uiSourceCode.url());
    }
  
    _debuggerReset() {
      this._project.reset();
    }
  
    dispose() {
      Common.EventTarget.removeEventListeners(this._eventListeners);
      this._debuggerReset();
      this._project.dispose();
    }
  }
  
  const _scriptsSymbol = Symbol('symbol');
  const _uiSourceCodeSymbol = Symbol('uiSourceCodeSymbol');
  
  /* Legacy exported object */
  self.Bindings = self.Bindings || {};
  
  /* Legacy exported object */
  Bindings = Bindings || {};
  
  /** @constructor */
  Bindings.DefaultScriptMapping = DefaultScriptMapping;
  