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: --harmony-object-observe 6 // Flags: --expose-debug-as debug 7 8 Debug = debug.Debug; 9 10 var base_id = -1; 11 var exception = null; 12 var expected = [ 13 "enqueue #1", 14 "willHandle #1", 15 "didHandle #1", 16 ]; 17 18 function assertLog(msg) { 19 print(msg); 20 assertTrue(expected.length > 0); 21 assertEquals(expected.shift(), msg); 22 if (!expected.length) { 23 Debug.setListener(null); 24 } 25 } 26 27 function listener(event, exec_state, event_data, data) { 28 if (event != Debug.DebugEvent.AsyncTaskEvent) return; 29 try { 30 if (base_id < 0) 31 base_id = event_data.id(); 32 var id = event_data.id() - base_id + 1; 33 assertEquals("Object.observe", event_data.name()); 34 assertLog(event_data.type() + " #" + id); 35 } catch (e) { 36 print(e + e.stack) 37 exception = e; 38 } 39 } 40 41 Debug.setListener(listener); 42 43 var obj = {}; 44 Object.observe(obj, function(changes) { 45 print(change.type + " " + change.name + " " + change.oldValue); 46 }); 47 48 obj.foo = 1; 49 obj.zoo = 2; 50 obj.foo = 3; 51 52 assertNull(exception); 53
