[api] Introduce MicrotasksScope::IsRunningMicrotasks

include/v8.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /** \mainpage V8 API Reference Guide
  *
  * V8 is Google's open source JavaScript engine.
  *
  * This set of documents provides reference material generated from the
  * V8 header file, include/v8.h.
@@ skipping 5122 matching lines @@
   /**
    * Runs microtasks if no kRunMicrotasks scope is currently active.
    */
   static void PerformCheckpoint(Isolate* isolate);
 
   /**
    * Returns current depth of nested kRunMicrotasks scopes.
    */
   static int GetCurrentDepth(Isolate* isolate);
 
+  /**
+   * Returns true while microtasks are being executed.
+   */
+  static bool IsRunningMicrotasks(Isolate* isolate);
+
  private:
   internal::Isolate* const isolate_;
   bool run_;
 
   // Prevent copying.
   MicrotasksScope(const MicrotasksScope&);
   MicrotasksScope& operator=(const MicrotasksScope&);
 };
 
 
@@ skipping 3618 matching lines @@
  */
 
 
 }  // namespace v8
 
 
 #undef TYPE_CHECK
 
 
 #endif  // INCLUDE_V8_H_