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| 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: --strong-mode --allow-natives-syntax | |
| 6 // Flags: --harmony-destructuring-bind | |
| 7 | |
| 8 'use strict'; | |
| 9 | |
| 10 (function WeakObjectLiterals() { | |
| 11 function assertWeakObject(x) { | |
| 12 assertFalse(%IsStrong(x)); | |
| 13 assertSame(Object.prototype, Object.getPrototypeOf(x)); | |
| 14 } | |
| 15 assertWeakObject({}); | |
| 16 assertWeakObject({a: 0, b: 0}); | |
| 17 assertWeakObject({a: [], b: {}}); | |
| 18 assertWeakObject({a: [], b: {}}.b); | |
| 19 assertWeakObject({a: {b: {c: {}}}}.a); | |
| 20 assertWeakObject({a: {b: {c: {}}}}.a.b); | |
| 21 assertWeakObject({a: {b: {c: {}}}}.a.b.c); | |
| 22 assertWeakObject([[1], {}, [[3]]][1]); | |
| 23 assertWeakObject({f: function(){}}); | |
| 24 assertWeakObject( | |
| 25 Realm.eval(Realm.current(), "({f: function(){}})")); | |
| 26 })(); | |
| 27 | |
| 28 (function StrongObjectLiterals() { | |
| 29 'use strong'; | |
| 30 function assertStrongObject(x) { | |
| 31 assertTrue(%IsStrong(x)); | |
| 32 assertSame(Object.prototype, Object.getPrototypeOf(x)); | |
| 33 } | |
| 34 assertStrongObject({}); | |
| 35 assertStrongObject({a: 0, b: 0}); | |
| 36 assertStrongObject({a: [], b: {}}); | |
| 37 assertStrongObject({a: [], b: {}}.b); | |
| 38 assertStrongObject({a: {b: {c: {}}}}.a); | |
| 39 assertStrongObject({a: {b: {c: {}}}}.a.b); | |
| 40 assertStrongObject({a: {b: {c: {}}}}.a.b.c); | |
| 41 // Maps for literals with too many properties are not cached. | |
| 42 assertStrongObject({ | |
| 43 x001: 0, x002: 0, x003: 0, x004: 0, x005: 0, | |
| 44 x006: 0, x007: 0, x008: 0, x009: 0, x010: 0, | |
| 45 x011: 0, x012: 0, x013: 0, x014: 0, x015: 0, | |
| 46 x016: 0, x017: 0, x018: 0, x019: 0, x020: 0, | |
| 47 x021: 0, x022: 0, x023: 0, x024: 0, x025: 0, | |
| 48 x026: 0, x027: 0, x028: 0, x029: 0, x030: 0, | |
| 49 x031: 0, x032: 0, x033: 0, x034: 0, x035: 0, | |
| 50 x036: 0, x037: 0, x038: 0, x039: 0, x040: 0, | |
| 51 x041: 0, x042: 0, x043: 0, x044: 0, x045: 0, | |
| 52 x046: 0, x047: 0, x048: 0, x049: 0, x050: 0, | |
| 53 x051: 0, x052: 0, x053: 0, x054: 0, x055: 0, | |
| 54 x056: 0, x057: 0, x058: 0, x059: 0, x060: 0, | |
| 55 x061: 0, x062: 0, x063: 0, x064: 0, x065: 0, | |
| 56 x066: 0, x067: 0, x068: 0, x069: 0, x070: 0, | |
| 57 x071: 0, x072: 0, x073: 0, x074: 0, x075: 0, | |
| 58 x076: 0, x077: 0, x078: 0, x079: 0, x080: 0, | |
| 59 x081: 0, x082: 0, x083: 0, x084: 0, x085: 0, | |
| 60 x086: 0, x087: 0, x088: 0, x089: 0, x090: 0, | |
| 61 x091: 0, x092: 0, x093: 0, x094: 0, x095: 0, | |
| 62 x096: 0, x097: 0, x098: 0, x099: 0, x100: 0, | |
| 63 x101: 0, x102: 0, x103: 0, x104: 0, x105: 0, | |
| 64 x106: 0, x107: 0, x108: 0, x109: 0, x110: 0, | |
| 65 x111: 0, x112: 0, x113: 0, x114: 0, x115: 0, | |
| 66 x116: 0, x117: 0, x118: 0, x119: 0, x120: 0, | |
| 67 x121: 0, x122: 0, x123: 0, x124: 0, x125: 0, | |
| 68 x126: 0, x127: 0, x128: 0, x129: 0, x130: 0, | |
| 69 x131: 0, x132: 0, x133: 0, x134: 0, x135: 0, | |
| 70 x136: 0, x137: 0, x138: 0, x139: 0, x140: 0, | |
| 71 x141: 0, x142: 0, x143: 0, x144: 0, x145: 0, | |
| 72 x146: 0, x147: 0, x148: 0, x149: 0, x150: 0, | |
| 73 x151: 0, x152: 0, x153: 0, x154: 0, x155: 0, | |
| 74 x156: 0, x157: 0, x158: 0, x159: 0, x160: 0, | |
| 75 x161: 0, x162: 0, x163: 0, x164: 0, x165: 0, | |
| 76 x166: 0, x167: 0, x168: 0, x169: 0, x170: 0, | |
| 77 x171: 0, x172: 0, x173: 0, x174: 0, x175: 0, | |
| 78 x176: 0, x177: 0, x178: 0, x179: 0, x180: 0, | |
| 79 x181: 0, x182: 0, x183: 0, x184: 0, x185: 0, | |
| 80 x186: 0, x187: 0, x188: 0, x189: 0, x190: 0, | |
| 81 x191: 0, x192: 0, x193: 0, x194: 0, x195: 0, | |
| 82 x196: 0, x197: 0, x198: 0, x199: 0, x200: 0, | |
| 83 }); | |
| 84 assertStrongObject([[1], {}, [[3]]][1]); | |
| 85 assertStrongObject({[Date() + ""]: 0, [Symbol()]: 0}); | |
| 86 assertStrongObject({m() { super.m() }}); | |
| 87 assertTrue(%IsStrong({__proto__: {}, get a() {}, set b(x) {}})); | |
| 88 // Object literals with constant functions are treated specially, | |
| 89 // but currently only on the toplevel (using Realm.eval to emulate that). | |
| 90 assertStrongObject({f: function(){}}); | |
| 91 assertStrongObject( | |
| 92 Realm.eval(Realm.current(), "'use strong'; ({f: function(){}})")); | |
| 93 })(); | |
| 94 | |
| 95 (function WeakArrayLiterals(...args) { | |
| 96 function assertWeakArray(x) { | |
| 97 assertFalse(%IsStrong(x)); | |
| 98 assertSame(Array.prototype, Object.getPrototypeOf(x)); | |
| 99 } | |
| 100 let [...r] = []; | |
| 101 assertWeakArray(args); | |
| 102 assertWeakArray(r); | |
| 103 assertWeakArray([]); | |
| 104 assertWeakArray([1, 2, 3]); | |
| 105 assertWeakArray([1, 2, ...[3, 4], 5]); | |
| 106 assertWeakArray([[[]]]); | |
| 107 assertWeakArray([[1], {}, [[3]]]); | |
| 108 assertWeakArray([[1], {}, [[3]]][0]); | |
| 109 assertWeakArray([[1], {}, [[3]]][2]); | |
| 110 assertWeakArray([[1], {}, [[3]]][2][0]); | |
| 111 assertWeakArray({a: [], b: {}}.a); | |
| 112 })(); | |
| 113 | |
| 114 (function StrongArrayLiterals() { | |
| 115 'use strong'; | |
| 116 function assertStrongArray(x) { | |
| 117 assertTrue(%IsStrong(x)); | |
| 118 assertSame(Array.prototype, Object.getPrototypeOf(x)); | |
| 119 } | |
| 120 let [...r] = []; | |
| 121 assertStrongArray((function(...a) { return a; })()); | |
| 122 assertStrongArray(r); | |
| 123 assertStrongArray([]); | |
| 124 assertStrongArray([1, 2, 3]); | |
| 125 assertStrongArray([1, 2, ...[3, 4], 5]); | |
| 126 assertStrongArray([[[]]]); | |
| 127 assertStrongArray([[1], {}, [[3]]]); | |
| 128 assertStrongArray([[1], {}, [[3]]][0]); | |
| 129 assertStrongArray([[1], {}, [[3]]][2]); | |
| 130 assertStrongArray([[1], {}, [[3]]][2][0]); | |
| 131 assertStrongArray({a: [], b: {}}.a); | |
| 132 })(); | |
| 133 | |
| 134 (function WeakFunctionLiterals() { | |
| 135 function assertWeakFunction(x) { | |
| 136 assertFalse(%IsStrong(x)); | |
| 137 assertFalse(%IsStrong(x.prototype)); | |
| 138 assertSame(Function.prototype, Object.getPrototypeOf(x)); | |
| 139 } | |
| 140 function f() {} | |
| 141 assertWeakFunction(f); | |
| 142 assertWeakFunction(function(){}); | |
| 143 assertWeakFunction(function f(){}); | |
| 144 assertWeakFunction(() => {}); | |
| 145 assertWeakFunction(x => x); | |
| 146 assertWeakFunction({m(){}}.m); | |
| 147 assertWeakFunction(Object.getOwnPropertyDescriptor( | |
| 148 {get a(){}}, 'a').get); | |
| 149 assertWeakFunction(Object.getOwnPropertyDescriptor( | |
| 150 {set a(x){}}, 'a').set); | |
| 151 assertWeakFunction((class {static m(){}}).m); | |
| 152 assertWeakFunction(Object.getOwnPropertyDescriptor( | |
| 153 class {static get a(){}}, 'a').get); | |
| 154 assertWeakFunction(Object.getOwnPropertyDescriptor( | |
| 155 class {static set a(x){}}, 'a').set); | |
| 156 assertWeakFunction((new class {m(){}}).m); | |
| 157 assertWeakFunction(Object.getOwnPropertyDescriptor( | |
| 158 (class {get a(){}}).prototype, 'a').get); | |
| 159 assertWeakFunction(Object.getOwnPropertyDescriptor( | |
| 160 (class {set a(x){}}).prototype, 'a').set); | |
| 161 })(); | |
| 162 | |
| 163 (function StrongFunctionLiterals() { | |
| 164 'use strong'; | |
| 165 function assertStrongFunction(x) { | |
| 166 assertTrue(%IsStrong(x)); | |
| 167 assertFalse('prototype' in x); | |
| 168 assertSame(Function.prototype, Object.getPrototypeOf(x)); | |
| 169 } | |
| 170 function f() {} | |
| 171 assertStrongFunction(f); | |
| 172 assertStrongFunction(function(){}); | |
| 173 assertStrongFunction(function f(){}); | |
| 174 assertStrongFunction(() => {}); | |
| 175 assertStrongFunction(x => x); | |
| 176 assertStrongFunction({m(){}}.m); | |
| 177 assertStrongFunction(Object.getOwnPropertyDescriptor( | |
| 178 {get a(){}}, 'a').get); | |
| 179 assertStrongFunction(Object.getOwnPropertyDescriptor( | |
| 180 {set a(x){}}, 'a').set); | |
| 181 assertStrongFunction((class {static m(){}}).m); | |
| 182 assertStrongFunction(Object.getOwnPropertyDescriptor( | |
| 183 class {static get a(){}}, 'a').get); | |
| 184 assertStrongFunction(Object.getOwnPropertyDescriptor( | |
| 185 class {static set a(x){}}, 'a').set); | |
| 186 assertStrongFunction((new class {m(){}}).m); | |
| 187 assertStrongFunction(Object.getOwnPropertyDescriptor( | |
| 188 (class {get a(){}}).prototype, 'a').get); | |
| 189 assertStrongFunction(Object.getOwnPropertyDescriptor( | |
| 190 (class {set a(x){}}).prototype, 'a').set); | |
| 191 })(); | |
| 192 | |
| 193 (function SelfStrongFunctionLiterals() { | |
| 194 function assertStrongFunction(x) { | |
| 195 assertTrue(%IsStrong(x)); | |
| 196 assertFalse('prototype' in x); | |
| 197 assertSame(Function.prototype, Object.getPrototypeOf(x)); | |
| 198 } | |
| 199 function f() {'use strong'} | |
| 200 assertStrongFunction(f); | |
| 201 assertStrongFunction(function(){'use strong'}); | |
| 202 assertStrongFunction(function f(){'use strong'}); | |
| 203 assertStrongFunction(() => {'use strong'}); | |
| 204 assertStrongFunction(x => {'use strong'}); | |
| 205 assertStrongFunction({m(){'use strong'}}.m); | |
| 206 assertStrongFunction(Object.getOwnPropertyDescriptor( | |
| 207 {get a(){'use strong'}}, 'a').get); | |
| 208 assertStrongFunction(Object.getOwnPropertyDescriptor( | |
| 209 {set a(x){'use strong'}}, 'a').set); | |
| 210 assertStrongFunction((class {static m(){'use strong'}}).m); | |
| 211 assertStrongFunction(Object.getOwnPropertyDescriptor( | |
| 212 class {static get a(){'use strong'}}, 'a').get); | |
| 213 assertStrongFunction(Object.getOwnPropertyDescriptor( | |
| 214 class {static set a(x){'use strong'}}, 'a').set); | |
| 215 assertStrongFunction((new class {m(){'use strong'}}).m); | |
| 216 assertStrongFunction(Object.getOwnPropertyDescriptor( | |
| 217 (class {get a(){'use strong'}}).prototype, 'a').get); | |
| 218 assertStrongFunction(Object.getOwnPropertyDescriptor( | |
| 219 (class {set a(x){'use strong'}}).prototype, 'a').set); | |
| 220 })(); | |
| 221 | |
| 222 let GeneratorPrototype = (function*(){}).__proto__; | |
| 223 | |
| 224 (function WeakGeneratorLiterals() { | |
| 225 function assertWeakGenerator(x) { | |
| 226 assertFalse(%IsStrong(x)); | |
| 227 assertFalse(%IsStrong(x.prototype)); | |
| 228 assertSame(GeneratorPrototype, Object.getPrototypeOf(x)); | |
| 229 assertFalse(%IsStrong(x())); | |
| 230 } | |
| 231 function* g() {} | |
| 232 assertWeakGenerator(g); | |
| 233 assertWeakGenerator(function*(){}); | |
| 234 assertWeakGenerator(function* g(){}); | |
| 235 assertWeakGenerator({*m(){}}.m); | |
| 236 assertWeakGenerator((class {static *m(){}}).m); | |
| 237 assertWeakGenerator((new class {*m(){}}).m); | |
| 238 })(); | |
| 239 | |
| 240 (function StrongGeneratorLiterals() { | |
| 241 'use strong'; | |
| 242 function assertStrongGenerator(x) { | |
| 243 assertTrue(%IsStrong(x)); | |
| 244 // TODO(rossberg): strongify generator prototypes | |
| 245 // assertTrue(%IsStrong(x.prototype)); | |
| 246 assertSame(GeneratorPrototype, Object.getPrototypeOf(x)); | |
| 247 // TODO(rossberg): strongify generator instances | |
| 248 // assertTrue(%IsStrong(x())); | |
| 249 } | |
| 250 function* g() {} | |
| 251 assertStrongGenerator(g); | |
| 252 assertStrongGenerator(function*(){}); | |
| 253 assertStrongGenerator(function* g(){}); | |
| 254 assertStrongGenerator({*m(){}}.m); | |
| 255 assertStrongGenerator((class {static *m(){}}).m); | |
| 256 assertStrongGenerator((new class {*m(){}}).m); | |
| 257 })(); | |
| 258 | |
| 259 (function SelfStrongGeneratorLiterals() { | |
| 260 function assertStrongGenerator(x) { | |
| 261 assertTrue(%IsStrong(x)); | |
| 262 // TODO(rossberg): strongify generator prototypes | |
| 263 // assertTrue(%IsStrong(x.prototype)); | |
| 264 assertSame(GeneratorPrototype, Object.getPrototypeOf(x)); | |
| 265 // TODO(rossberg): strongify generator instances | |
| 266 // assertTrue(%IsStrong(x())); | |
| 267 } | |
| 268 function* g() {'use strong'} | |
| 269 assertStrongGenerator(g); | |
| 270 assertStrongGenerator(function*(){'use strong'}); | |
| 271 assertStrongGenerator(function* g(){'use strong'}); | |
| 272 assertStrongGenerator({*m(){'use strong'}}.m); | |
| 273 assertStrongGenerator((class {static *m(){'use strong'}}).m); | |
| 274 assertStrongGenerator((new class {*m(){'use strong'}}).m); | |
| 275 })(); | |
| 276 | |
| 277 (function WeakRegExpLiterals() { | |
| 278 function assertWeakRegExp(x) { | |
| 279 assertFalse(%IsStrong(x)); | |
| 280 } | |
| 281 assertWeakRegExp(/abc/); | |
| 282 })(); | |
| 283 | |
| 284 (function StrongRegExpLiterals() { | |
| 285 'use strong'; | |
| 286 function assertStrongRegExp(x) { | |
| 287 // TODO(rossberg): strongify regexps | |
| 288 // assertTrue(%IsStrong(x)); | |
| 289 } | |
| 290 assertStrongRegExp(/abc/); | |
| 291 })(); | |
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Chromium Code Reviews
Issue 1773653002:
[strong] Remove all remainders of strong mode (Closed)
Base URL: https://chromium.googlesource.com/v8/v8.git@master