Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 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 --harmony |
| 6 | |
| 7 | Debug = debug.Debug; |
| 8 | var break_count = 0 |
| 9 | var exception = null; |
| 10 | var log = [] |
| 11 | |
| 12 | var s = 0; |
| 13 | var a = [1, 2, 3]; |
| 14 | var i = 0; |
| 15 | |
| 16 | function f() { |
| 17 | "use strict"; |
| 18 | debugger; // Break a |
| 19 | var j; // Break b |
| 20 | |
| 21 | for (var i in null) { // Break c |
| 22 | s += a[i]; |
| 23 | } |
| 24 | |
| 25 | for (j in null) { // Break d |
| 26 | s += a[j]; |
| 27 | } |
| 28 | |
| 29 | for (var i in a) { // Break e |
| 30 | s += a[i]; // Break E |
| 31 | } |
| 32 | |
| 33 | for (j in a) { // Break f |
| 34 | s += a[j]; // Break F |
| 35 | } |
| 36 | |
| 37 | for (let i in a) { // Break g |
| 38 | s += a[i]; // Break G |
| 39 | } |
| 40 | |
| 41 | for (var i of a) { // Break h |
| 42 | s += i; // Break H |
| 43 | } |
| 44 | |
| 45 | for (j of a) { // Break i |
| 46 | s += j; // Break I |
| 47 | } |
| 48 | |
| 49 | for (let i of a) { // Break j |
| 50 | s += i; // Break J |
| 51 | } |
| 52 | |
| 53 | for (var i = 0; i < 3; i++) { // Break k |
| 54 | s += a[i]; // Break K |
| 55 | } |
| 56 | |
| 57 | for (j = 0; j < 3; j++) { // Break l |
| 58 | s += a[j]; // Break L |
| 59 | } |
| 60 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 61 | for (let i = 0; i < 3; i++) { // Break m |
| 62 | s += a[i]; // Break M |
| 63 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 64 | } // Break y |
| 65 | |
| 66 | function listener(event, exec_state, event_data, data) { |
| 67 | if (event != Debug.DebugEvent.Break) return; |
| 68 | try { |
| 69 | var line = exec_state.frame(0).sourceLineText(); |
| 70 | var col = exec_state.frame(0).sourceColumn(); |
| 71 | print(line); |
| 72 | var match = line.match(/\/\/ Break (\w)$/); |
| 73 | assertEquals(2, match.length); |
| 74 | log.push(match[1] + col); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 75 | exec_state.prepareStep(Debug.StepAction.StepNext); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 76 | break_count++; |
| 77 | } catch (e) { |
| 78 | exception = e; |
| 79 | } |
| 80 | } |
| 81 | |
| 82 | Debug.setListener(listener); |
| 83 | f(); |
| 84 | Debug.setListener(null); // Break z |
| 85 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 86 | print("log:\n"+ JSON.stringify(log)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 87 | // The let declaration differs from var in that the loop variable |
| 88 | // is declared in every iteration. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 89 | // TODO(verwaest): For-of has hacky position numbers for Symbol.iterator and |
| 90 | // .next. Restore to proper positions once the CallPrinter can disambiguate |
| 91 | // based on other values. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 92 | var expected = [ |
| 93 | // Entry |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 94 | "a2", |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 95 | // Empty for-in-var: get enumerable |
| 96 | "c16", |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 97 | // Empty for-in: get enumerable |
| 98 | "d12", |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 99 | // For-in-var: get enumerable, assign, body, assign, body, ... |
| 100 | "e16","e11","E4","e11","E4","e11","E4","e11", |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 101 | // For-in: get enumerable, assign, body, assign, body, ... |
| 102 | "f12","f7","F4","f7","F4","f7","F4","f7", |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 103 | // For-in-let: get enumerable, next, body, next, ... |
| 104 | "g16","g11","G4","g11","G4","g11","G4","g11", |
| 105 | // For-of-var: [Symbol.iterator](), next(), body, next(), body, ... |
| 106 | "h16","h14","h15","H4","h15","H4","h15","H4","h15", |
| 107 | // For-of: [Symbol.iterator](), next(), body, next(), body, ... |
| 108 | "i12","i10","i11","I4","i11","I4","i11","I4","i11", |
| 109 | // For-of-let: [Symbol.iterator](), next(), body, next(), ... |
| 110 | "j16","j14","j15","J4","j15","J4","j15","J4","j15", |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 111 | // For-var: init, condition, body, next, condition, body, ... |
| 112 | "k15","k20","K4","k26","k20","K4","k26","k20","K4","k26","k20", |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 113 | // For: init, condition, body, next, condition, body, ... |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 114 | "l7","l16","L4","l22","l16","L4","l22","l16","L4","l22","l16", |
| 115 | // For-let: init, condition, body, next, condition, body, ... |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 116 | "m15","m20","M4","m26","m20","M4","m26","m20","M4","m26","m20", |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 117 | // Exit. |
| 118 | "y0","z0", |
| 119 | ] |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 120 | print("expected:\n"+ JSON.stringify(expected)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 121 | |
| 122 | assertArrayEquals(expected, log); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 123 | assertEquals(54, s); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 124 | assertNull(exception); |