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 6 7 // Test debug events when we only listen to uncaught exceptions and 8 // an exception is thrown in the Promise constructor, but caught in an 9 // inner try-catch. The Promise is rejected afterwards. 10 // We expect an Exception debug event with a promise to be triggered. 11 12 Debug = debug.Debug; 13 14 var step = 0; 15 var exception = null; 16 17 function listener(event, exec_state, event_data, data) { 18 try { 19 if (event == Debug.DebugEvent.Exception) { 20 assertEquals(0, step); 21 assertEquals("uncaught", event_data.exception().message); 22 assertTrue(event_data.promise() instanceof Promise); 23 assertTrue(event_data.uncaught()); 24 // Assert that the debug event is triggered at the throw site. 25 assertTrue(exec_state.frame(0).sourceLineText().indexOf("// event") > 0); 26 step++; 27 } 28 } catch (e) { 29 exception = e; 30 } 31 } 32 33 Debug.setBreakOnUncaughtException(); 34 Debug.setListener(listener); 35 36 var p = new Promise(function(resolve, reject) { 37 try { // This try-catch must not prevent this uncaught reject event. 38 throw new Error("caught"); 39 } catch (e) { } 40 reject(new Error("uncaught")); // event 41 }); 42 43 assertEquals(1, step); 44 assertNull(exception); 45
