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Side by Side Diff: test/mjsunit/harmony/block-for.js

Issue 1007783002: Remove --harmony-scoping flag. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: CR feedback Created 5 years, 9 months ago
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1 // Copyright 2011 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are
4 // met:
5 //
6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided
11 // with the distribution.
12 // * Neither the name of Google Inc. nor the names of its
13 // contributors may be used to endorse or promote products derived
14 // from this software without specific prior written permission.
15 //
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28 // Flags: --harmony-scoping
29
30 "use strict";
31
32 function props(x) {
33 var array = [];
34 for (let p in x) array.push(p);
35 return array.sort();
36 }
37
38 assertEquals(0, props({}).length);
39 assertEquals(1, props({x:1}).length);
40 assertEquals(2, props({x:1, y:2}).length);
41
42 assertArrayEquals(["x"], props({x:1}));
43 assertArrayEquals(["x", "y"], props({x:1, y:2}));
44 assertArrayEquals(["x", "y", "zoom"], props({x:1, y:2, zoom:3}));
45
46 assertEquals(0, props([]).length);
47 assertEquals(1, props([1]).length);
48 assertEquals(2, props([1,2]).length);
49
50 assertArrayEquals(["0"], props([1]));
51 assertArrayEquals(["0", "1"], props([1,2]));
52 assertArrayEquals(["0", "1", "2"], props([1,2,3]));
53
54 var o = {};
55 var a = [];
56 let i = "outer_i";
57 let s = "outer_s";
58 for (let i = 0x0020; i < 0x01ff; i+=2) {
59 let s = 'char:' + String.fromCharCode(i);
60 a.push(s);
61 o[s] = i;
62 }
63 assertArrayEquals(a, props(o));
64 assertEquals(i, "outer_i");
65 assertEquals(s, "outer_s");
66
67 var a = [];
68 assertEquals(0, props(a).length);
69 a[Math.pow(2,30)-1] = 0;
70 assertEquals(1, props(a).length);
71 a[Math.pow(2,31)-1] = 0;
72 assertEquals(2, props(a).length);
73 a[1] = 0;
74 assertEquals(3, props(a).length);
75
76 var result = '';
77 for (let p in {a : [0], b : 1}) { result += p; }
78 assertEquals('ab', result);
79
80 var result = '';
81 for (let p in {a : {v:1}, b : 1}) { result += p; }
82 assertEquals('ab', result);
83
84 var result = '';
85 for (let p in { get a() {}, b : 1}) { result += p; }
86 assertEquals('ab', result);
87
88 var result = '';
89 for (let p in { get a() {}, set a(x) {}, b : 1}) { result += p; }
90 assertEquals('ab', result);
91
92
93 // Check that there is exactly one variable without initializer
94 // in a for-in statement with let variables.
95 assertThrows("function foo() { 'use strict'; for (let in {}) { } }", SyntaxError );
96 assertThrows("function foo() { 'use strict'; for (let x = 3 in {}) { } }", Synta xError);
97 assertThrows("function foo() { 'use strict'; for (let x, y in {}) { } }", Syntax Error);
98 assertThrows("function foo() { 'use strict'; for (let x = 3, y in {}) { } }", Sy ntaxError);
99 assertThrows("function foo() { 'use strict'; for (let x, y = 4 in {}) { } }", Sy ntaxError);
100 assertThrows("function foo() { 'use strict'; for (let x = 3, y = 4 in {}) { } }" , SyntaxError);
101
102
103 // In a normal for statement the iteration variable is
104 // freshly allocated for each iteration.
105 function closures1() {
106 let a = [];
107 for (let i = 0; i < 5; ++i) {
108 a.push(function () { return i; });
109 }
110 for (let j = 0; j < 5; ++j) {
111 assertEquals(j, a[j]());
112 }
113 }
114 closures1();
115
116
117 function closures2() {
118 let a = [], b = [];
119 for (let i = 0, j = 10; i < 5; ++i, ++j) {
120 a.push(function () { return i; });
121 b.push(function () { return j; });
122 }
123 for (let k = 0; k < 5; ++k) {
124 assertEquals(k, a[k]());
125 assertEquals(k + 10, b[k]());
126 }
127 }
128 closures2();
129
130
131 function closure_in_for_init() {
132 let a = [];
133 for (let i = 0, f = function() { return i }; i < 5; ++i) {
134 a.push(f);
135 }
136 for (let k = 0; k < 5; ++k) {
137 assertEquals(0, a[k]());
138 }
139 }
140 closure_in_for_init();
141
142
143 function closure_in_for_cond() {
144 let a = [];
145 for (let i = 0; a.push(function () { return i; }), i < 5; ++i) { }
146 for (let k = 0; k < 5; ++k) {
147 assertEquals(k, a[k]());
148 }
149 }
150 closure_in_for_cond();
151
152
153 function closure_in_for_next() {
154 let a = [];
155 for (let i = 0; i < 5; a.push(function () { return i; }), ++i) { }
156 for (let k = 0; k < 5; ++k) {
157 assertEquals(k + 1, a[k]());
158 }
159 }
160 closure_in_for_next();
161
162
163 // In a for-in statement the iteration variable is fresh
164 // for earch iteration.
165 function closures3(x) {
166 let a = [];
167 for (let p in x) {
168 a.push(function () { return p; });
169 }
170 let k = 0;
171 for (let q in x) {
172 assertEquals(q, a[k]());
173 ++k;
174 }
175 }
176 closures3({a : [0], b : 1, c : {v : 1}, get d() {}, set e(x) {}});
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