text: /*
   * Copyright (C) 2013 Apple 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:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. 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.
   *
   * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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.
   */
  
  WI.RuntimeManager = class RuntimeManager extends WI.Object
  {
      constructor()
      {
          super();
  
          this._activeExecutionContext = null;
  
          WI.Frame.addEventListener(WI.Frame.Event.ExecutionContextsCleared, this._frameExecutionContextsCleared, this);
      }
  
      // Static
  
      static supportsAwaitPromise()
      {
          // COMPATIBILITY (iOS 12): Runtime.awaitPromise did not exist
          return !!InspectorBackend.domains.Runtime.awaitPromise;
      }
  
      // Target
  
      initializeTarget(target)
      {
          target.RuntimeAgent.enable();
  
          // COMPATIBILITY (iOS 8): Runtime.enableTypeProfiler did not exist.
          if (target.RuntimeAgent.enableTypeProfiler && WI.settings.showJavaScriptTypeInformation.value)
              target.RuntimeAgent.enableTypeProfiler();
  
          // COMPATIBILITY (iOS 10): Runtime.enableControlFlowProfiler did not exist
          if (target.RuntimeAgent.enableControlFlowProfiler && WI.settings.enableControlFlowProfiler.value)
              target.RuntimeAgent.enableControlFlowProfiler();
      }
  
      // Public
  
      get activeExecutionContext()
      {
          return this._activeExecutionContext;
      }
  
      set activeExecutionContext(executionContext)
      {
          if (this._activeExecutionContext === executionContext)
              return;
  
          this._activeExecutionContext = executionContext;
  
          this.dispatchEventToListeners(WI.RuntimeManager.Event.ActiveExecutionContextChanged);
      }
  
      evaluateInInspectedWindow(expression, options, callback)
      {
          if (!this._activeExecutionContext) {
              callback(null, false);
              return;
          }
  
          let {objectGroup, includeCommandLineAPI, doNotPauseOnExceptionsAndMuteConsole, returnByValue, generatePreview, saveResult, emulateUserGesture, sourceURLAppender} = options;
  
          includeCommandLineAPI = includeCommandLineAPI || false;
          doNotPauseOnExceptionsAndMuteConsole = doNotPauseOnExceptionsAndMuteConsole || false;
          returnByValue = returnByValue || false;
          generatePreview = generatePreview || false;
          saveResult = saveResult || false;
          emulateUserGesture = emulateUserGesture || false;
          sourceURLAppender = sourceURLAppender || appendWebInspectorSourceURL;
  
          console.assert(objectGroup, "RuntimeManager.evaluateInInspectedWindow should always be called with an objectGroup");
          console.assert(typeof sourceURLAppender === "function");
  
          if (!expression) {
              // There is no expression, so the completion should happen against global properties.
              expression = "this";
          } else if (/^\s*\{/.test(expression) && /\}\s*$/.test(expression)) {
              // Transform {a:1} to ({a:1}) so it is treated like an object literal instead of a block with a label.
              expression = "(" + expression + ")";
          } else if (/\bawait\b/.test(expression)) {
              // Transform `await <expr>` into an async function assignment.
              expression = this._tryApplyAwaitConvenience(expression);
          }
  
          expression = sourceURLAppender(expression);
  
          let target = this._activeExecutionContext.target;
          let executionContextId = this._activeExecutionContext.id;
  
          if (WI.debuggerManager.activeCallFrame) {
              target = WI.debuggerManager.activeCallFrame.target;
              executionContextId = target.executionContext.id;
          }
  
          function evalCallback(error, result, wasThrown, savedResultIndex)
          {
              this.dispatchEventToListeners(WI.RuntimeManager.Event.DidEvaluate, {objectGroup});
  
              if (error) {
                  console.error(error);
                  callback(null, false);
                  return;
              }
  
              if (returnByValue)
                  callback(null, wasThrown, wasThrown ? null : result, savedResultIndex);
              else
                  callback(WI.RemoteObject.fromPayload(result, target), wasThrown, savedResultIndex);
          }
  
          if (WI.debuggerManager.activeCallFrame) {
              // COMPATIBILITY (iOS 8): "saveResult" did not exist.
              target.DebuggerAgent.evaluateOnCallFrame.invoke({callFrameId: WI.debuggerManager.activeCallFrame.id, expression, objectGroup, includeCommandLineAPI, doNotPauseOnExceptionsAndMuteConsole, returnByValue, generatePreview, saveResult}, evalCallback.bind(this), target.DebuggerAgent);
              return;
          }
  
          // COMPATIBILITY (iOS 8): "saveResult" did not exist.
          // COMPATIBILITY (iOS 12.2): "emulateUserGesture" did not exist.
          target.RuntimeAgent.evaluate.invoke({expression, objectGroup, includeCommandLineAPI, doNotPauseOnExceptionsAndMuteConsole, contextId: executionContextId, returnByValue, generatePreview, saveResult, emulateUserGesture}, evalCallback.bind(this), target.RuntimeAgent);
      }
  
      saveResult(remoteObject, callback)
      {
          console.assert(remoteObject instanceof WI.RemoteObject);
  
          let target = this._activeExecutionContext.target;
          let executionContextId = this._activeExecutionContext.id;
  
          // COMPATIBILITY (iOS 8): Runtime.saveResult did not exist.
          if (!target.RuntimeAgent.saveResult) {
              callback(undefined);
              return;
          }
  
          function mycallback(error, savedResultIndex)
          {
              callback(savedResultIndex);
          }
  
          if (remoteObject.objectId)
              target.RuntimeAgent.saveResult(remoteObject.asCallArgument(), mycallback);
          else
              target.RuntimeAgent.saveResult(remoteObject.asCallArgument(), executionContextId, mycallback);
      }
  
      getPropertiesForRemoteObject(objectId, callback)
      {
          this._activeExecutionContext.target.RuntimeAgent.getProperties(objectId, function(error, result) {
              if (error) {
                  callback(error);
                  return;
              }
  
              let properties = new Map;
              for (let property of result)
                  properties.set(property.name, property);
  
              callback(null, properties);
          });
      }
  
      // Private
  
      _frameExecutionContextsCleared(event)
      {
          let contexts = event.data.contexts || [];
  
          let currentContextWasDestroyed = contexts.some((context) => context.id === this._activeExecutionContext.id);
          if (currentContextWasDestroyed)
              this.activeExecutionContext = WI.mainTarget.executionContext;
      }
  
      _tryApplyAwaitConvenience(originalExpression)
      {
          let esprimaSyntaxTree;
  
          // Do not transform if the original code parses just fine.
          try {
              esprima.parse(originalExpression);
              return originalExpression;
          } catch { }
  
          // Do not transform if the async function version does not parse.
          try {
              esprimaSyntaxTree = esprima.parse("(async function(){" + originalExpression + "})");
          } catch {
              return originalExpression;
          }
  
          // Assert expected AST produced by our wrapping code.
          console.assert(esprimaSyntaxTree.type === "Program");
          console.assert(esprimaSyntaxTree.body.length === 1);
          console.assert(esprimaSyntaxTree.body[0].type === "ExpressionStatement");
          console.assert(esprimaSyntaxTree.body[0].expression.type === "FunctionExpression");
          console.assert(esprimaSyntaxTree.body[0].expression.async);
          console.assert(esprimaSyntaxTree.body[0].expression.body.type === "BlockStatement");
  
          // Do not transform if there is more than one statement.
          let asyncFunctionBlock = esprimaSyntaxTree.body[0].expression.body;
          if (asyncFunctionBlock.body.length !== 1)
              return originalExpression;
  
          // Extract the variable name for transformation.
          let variableName;
          let anonymous = false;
          let declarationKind = "var";
          let awaitPortion;
          let statement = asyncFunctionBlock.body[0];
          if (statement.type === "ExpressionStatement"
              && statement.expression.type === "AwaitExpression") {
              // await <expr>
              anonymous = true;
          } else if (statement.type === "ExpressionStatement"
              && statement.expression.type === "AssignmentExpression"
              && statement.expression.right.type === "AwaitExpression"
              && statement.expression.left.type === "Identifier") {
              // x = await <expr>
              variableName = statement.expression.left.name;
              awaitPortion = originalExpression.substring(originalExpression.indexOf("await"));
          } else if (statement.type === "VariableDeclaration"
              && statement.declarations.length === 1
              && statement.declarations[0].init.type === "AwaitExpression"
              && statement.declarations[0].id.type === "Identifier") {
              // var x = await <expr>
              variableName = statement.declarations[0].id.name;
              declarationKind = statement.kind;
              awaitPortion = originalExpression.substring(originalExpression.indexOf("await"));
          } else {
              // Do not transform if this was not one of the simple supported syntaxes.
              return originalExpression;
          }
  
          if (anonymous) {
              return `
  (async function() {
      try {
          let result = ${originalExpression};
          console.info("%o", result);
      } catch (e) {
          console.error(e);
      }
  })();
  undefined`;
          }
  
          return `${declarationKind} ${variableName};
  (async function() {
      try {
          ${variableName} = ${awaitPortion};
          console.info("%o", ${variableName});
      } catch (e) {
          console.error(e);
      }
  })();
  undefined;`;
      }
  };
  
  WI.RuntimeManager.ConsoleObjectGroup = "console";
  WI.RuntimeManager.TopLevelExecutionContextIdentifier = undefined;
  
  WI.RuntimeManager.Event = {
      DidEvaluate: Symbol("runtime-manager-did-evaluate"),
      DefaultExecutionContextChanged: Symbol("runtime-manager-default-execution-context-changed"),
      ActiveExecutionContextChanged: Symbol("runtime-manager-active-execution-context-changed"),
  };
  