1// Copyright 2015 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 7var exception = null; 8var Debug = debug.Debug; 9var break_count = 0; 10 11function listener(event, exec_state, event_data, data) { 12 if (event != Debug.DebugEvent.Break) return; 13 try { 14 var source = exec_state.frame(0).sourceLineText(); 15 print(source); 16 assertTrue(source.indexOf(`// B${break_count++}`) > 0); 17 if (source.indexOf("assertEquals") > 0) { 18 exec_state.prepareStep(Debug.StepAction.StepNext); 19 } else { 20 exec_state.prepareStep(Debug.StepAction.StepIn); 21 } 22 } catch (e) { 23 exception = e; 24 print(e); 25 } 26}; 27 28Debug.setListener(listener); 29 30function f() { 31 var a, b, c, d; 32 debugger; // B0 33 [ // B1 34 a, // B2 35 b, // B3 36 c = 3 // B4 37 ] = [1, 2]; 38 assertEquals({a:1,b:2,c:3}, {a, b, c}); // B5 39 40 [ // B6 41 a, // B7 42 [ 43 b, // B8 44 c // B9 45 ], 46 d // B10 47 ] = [5, [6, 7], 8]; 48 assertEquals({a:5,b:6,c:7,d:8}, {a, b, c, d}); // B11 49 50 [ // B12 51 a, // B13 52 b, // B14 53 ...c // B15 54 ] = [1, 2, 3, 4]; 55 assertEquals({a:1,b:2,c:[3,4]}, {a, b, c}); // B16 56 57 ({ // B17 58 a, // B18 59 b, // B19 60 c = 7 // B20 61 } = {a: 5, b: 6}); 62 assertEquals({a:5,b:6,c:7}, {a, b, c}); // B21 63 64 ({ // B22 65 a, // B23 66 b = return1(), // B24 67 c = return1() // B25 68 } = {a: 5, b: 6}); 69 assertEquals({a:5,b:6,c:1}, {a, b, c}); // B28 70 71 ({ // B29 72 x : a, // B30 73 y : b, // B31 74 z : c = 3 // B32 75 } = {x: 1, y: 2}); 76 assertEquals({a:1,b:2,c:3}, {a, b, c}); // B33 77} // B34 78 79function return1() { 80 return 1; // B26 81} // B27 82 83f(); 84Debug.setListener(null); // B35 85assertNull(exception); 86