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      1 // Copyright 2014 the V8 project authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 // Flags: --expose-debug-as debug --allow-natives-syntax
      6 
      7 // Test debug events when we only listen to uncaught exceptions and
      8 // there is a catch handler for the to-be-rejected Promise.
      9 // We expect no Exception debug events, since the default reject handler passes
     10 // the rejection on to a user-defined reject handler.
     11 
     12 Debug = debug.Debug;
     13 
     14 var resolve, reject;
     15 var p0 = new Promise(function(res, rej) { resolve = res; reject = rej; });
     16 
     17 var p1 = p0.then(function() {
     18   throw new Error();
     19 });
     20 
     21 var p2 = p1.then(function() { });
     22 var p3 = p2.catch(function() { });
     23 
     24 var q = new Promise(function(res, rej) {
     25   res();
     26 });
     27 
     28 q.then(function() {
     29   resolve();
     30 })
     31 
     32 
     33 function listener(event, exec_state, event_data, data) {
     34   try {
     35     assertTrue(event != Debug.DebugEvent.Exception);
     36   } catch (e) {
     37     %AbortJS(e + "\n" + e.stack);
     38   }
     39 }
     40 
     41 Debug.setBreakOnUncaughtException();
     42 Debug.setListener(listener);
     43