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Side by Side Diff: test/mjsunit/es6/debug-stepnext-for.js

Issue 713813002: Revert "Fix stepping in for-loops." (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 6 years, 1 month ago
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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 --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
61 // TODO(yangguo): add test case for for-let.
62 } // Break y
63
64 function listener(event, exec_state, event_data, data) {
65 if (event != Debug.DebugEvent.Break) return;
66 try {
67 var line = exec_state.frame(0).sourceLineText();
68 var col = exec_state.frame(0).sourceColumn();
69 print(line);
70 var match = line.match(/\/\/ Break (\w)$/);
71 assertEquals(2, match.length);
72 log.push(match[1] + col);
73 exec_state.prepareStep(Debug.StepAction.StepNext, 1);
74 break_count++;
75 } catch (e) {
76 exception = e;
77 }
78 }
79
80 Debug.setListener(listener);
81 f();
82 Debug.setListener(null); // Break z
83
84 print(JSON.stringify(log));
85 // The let declaration differs from var in that the loop variable
86 // is declared in every iteration.
87 var expected = [
88 // Entry
89 "a2","b2",
90 // Empty for-in-var: var decl, get enumerable
91 "c7","c16",
92 // Empty for-in: get enumerable
93 "d12",
94 // For-in-var: var decl, get enumerable, assign, body, assign, body, ...
95 "e7","e16","e11","E4","e11","E4","e11","E4",
96 // For-in: get enumerable, assign, body, assign, body, ...
97 "f12","f7","F4","f7","F4","f7","F4",
98 // For-in-let: get enumerable, assign new let, body, assign new let, ...
99 "g16","g7","G4","g7","G4","g7","G4",
100 // For-of-var: var decl, next(), body, next(), body, ...
101 "h7","h16","H4","h16","H4","h16","H4","h16",
102 // For-of: next(), body, next(), body, ...
103 "i12","I4","i12","I4","i12","I4","i12",
104 // For-of-let: next(), assign new let, body, next(), assign new let, ...
105 "j16","j7","J4","j16","j7","J4","j16","j7","J4","j16",
106 // For-var: var decl, condition, body, next, condition, body, ...
107 "k7","k20","K4","k23","k20","K4","k23","k20","K4","k23","k20",
108 // For: init, condition, body, next, condition, body, ...
109 "l11","l16","L4","l19","l16","L4","l19","l16","L4","l19","l16",
110 // Exit.
111 "y0","z0",
112 ]
113
114 assertArrayEquals(expected, log);
115 assertEquals(48, s);
116 assertNull(exception);
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