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| 1 /* | |
| 2 * Copyright (C) 2007 Apple Inc. All rights reserved. | |
| 3 * Copyright (C) 2013 Google Inc. All rights reserved. | |
| 4 * | |
| 5 * Redistribution and use in source and binary forms, with or without | |
| 6 * modification, are permitted provided that the following conditions | |
| 7 * are met: | |
| 8 * | |
| 9 * 1. Redistributions of source code must retain the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer. | |
| 11 * 2. Redistributions in binary form must reproduce the above copyright | |
| 12 * notice, this list of conditions and the following disclaimer in the | |
| 13 * documentation and/or other materials provided with the distribution. | |
| 14 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of | |
| 15 * its contributors may be used to endorse or promote products derived | |
| 16 * from this software without specific prior written permission. | |
| 17 * | |
| 18 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY | |
| 19 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
| 20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
| 21 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY | |
| 22 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
| 23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
| 24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | |
| 25 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
| 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 28 */ | |
| 29 | |
| 30 "use strict"; | |
| 31 | |
| 32 /** | |
| 33 * @param {!InjectedScriptHostClass} InjectedScriptHost | |
| 34 * @param {!Window|!WorkerGlobalScope} inspectedGlobalObject | |
| 35 * @param {number} injectedScriptId | |
| 36 */ | |
| 37 (function (InjectedScriptHost, inspectedGlobalObject, injectedScriptId) { | |
| 38 | |
| 39 /** | |
| 40 * Protect against Object overwritten by the user code. | |
| 41 * @suppress {duplicate} | |
| 42 */ | |
| 43 var Object = /** @type {function(new:Object, *=)} */ ({}.constructor); | |
| 44 | |
| 45 /** | |
| 46 * @param {!Array.<T>} array | |
| 47 * @param {...} var_args | |
| 48 * @template T | |
| 49 */ | |
| 50 function push(array, var_args) | |
| 51 { | |
| 52 for (var i = 1; i < arguments.length; ++i) | |
| 53 array[array.length] = arguments[i]; | |
| 54 } | |
| 55 | |
| 56 /** | |
| 57 * @param {*} obj | |
| 58 * @return {string} | |
| 59 * @suppress {uselessCode} | |
| 60 */ | |
| 61 function toString(obj) | |
| 62 { | |
| 63 // We don't use String(obj) because String could be overridden. | |
| 64 // Also the ("" + obj) expression may throw. | |
| 65 try { | |
| 66 return "" + obj; | |
| 67 } catch (e) { | |
| 68 var name = InjectedScriptHost.internalConstructorName(obj) || InjectedSc
riptHost.subtype(obj) || (typeof obj); | |
| 69 return "#<" + name + ">"; | |
| 70 } | |
| 71 } | |
| 72 | |
| 73 /** | |
| 74 * @param {*} obj | |
| 75 * @return {string} | |
| 76 */ | |
| 77 function toStringDescription(obj) | |
| 78 { | |
| 79 if (typeof obj === "number" && obj === 0 && 1 / obj < 0) | |
| 80 return "-0"; // Negative zero. | |
| 81 return toString(obj); | |
| 82 } | |
| 83 | |
| 84 /** | |
| 85 * @param {T} obj | |
| 86 * @return {T} | |
| 87 * @template T | |
| 88 */ | |
| 89 function nullifyObjectProto(obj) | |
| 90 { | |
| 91 if (obj && typeof obj === "object") | |
| 92 obj.__proto__ = null; | |
| 93 return obj; | |
| 94 } | |
| 95 | |
| 96 /** | |
| 97 * @param {number|string} obj | |
| 98 * @return {boolean} | |
| 99 */ | |
| 100 function isUInt32(obj) | |
| 101 { | |
| 102 if (typeof obj === "number") | |
| 103 return obj >>> 0 === obj && (obj > 0 || 1 / obj > 0); | |
| 104 return "" + (obj >>> 0) === obj; | |
| 105 } | |
| 106 | |
| 107 /** | |
| 108 * FireBug's array detection. | |
| 109 * @param {*} obj | |
| 110 * @return {boolean} | |
| 111 */ | |
| 112 function isArrayLike(obj) | |
| 113 { | |
| 114 if (typeof obj !== "object") | |
| 115 return false; | |
| 116 try { | |
| 117 if (typeof obj.splice === "function") { | |
| 118 if (!InjectedScriptHost.objectHasOwnProperty(/** @type {!Object} */
(obj), "length")) | |
| 119 return false; | |
| 120 var len = obj.length; | |
| 121 return typeof len === "number" && isUInt32(len); | |
| 122 } | |
| 123 } catch (e) { | |
| 124 } | |
| 125 return false; | |
| 126 } | |
| 127 | |
| 128 /** | |
| 129 * @param {number} a | |
| 130 * @param {number} b | |
| 131 * @return {number} | |
| 132 */ | |
| 133 function max(a, b) | |
| 134 { | |
| 135 return a > b ? a : b; | |
| 136 } | |
| 137 | |
| 138 /** | |
| 139 * FIXME: Remove once ES6 is supported natively by JS compiler. | |
| 140 * @param {*} obj | |
| 141 * @return {boolean} | |
| 142 */ | |
| 143 function isSymbol(obj) | |
| 144 { | |
| 145 var type = typeof obj; | |
| 146 return (type === "symbol"); | |
| 147 } | |
| 148 | |
| 149 /** | |
| 150 * DOM Attributes which have observable side effect on getter, in the form of | |
| 151 * {interfaceName1: {attributeName1: true, | |
| 152 * attributeName2: true, | |
| 153 * ...}, | |
| 154 * interfaceName2: {...}, | |
| 155 * ...} | |
| 156 * @type {!Object<string, !Object<string, boolean>>} | |
| 157 * @const | |
| 158 */ | |
| 159 var domAttributesWithObservableSideEffectOnGet = nullifyObjectProto({}); | |
| 160 domAttributesWithObservableSideEffectOnGet["Request"] = nullifyObjectProto({}); | |
| 161 domAttributesWithObservableSideEffectOnGet["Request"]["body"] = true; | |
| 162 domAttributesWithObservableSideEffectOnGet["Response"] = nullifyObjectProto({}); | |
| 163 domAttributesWithObservableSideEffectOnGet["Response"]["body"] = true; | |
| 164 | |
| 165 /** | |
| 166 * @param {!Object} object | |
| 167 * @param {string} attribute | |
| 168 * @return {boolean} | |
| 169 */ | |
| 170 function doesAttributeHaveObservableSideEffectOnGet(object, attribute) | |
| 171 { | |
| 172 for (var interfaceName in domAttributesWithObservableSideEffectOnGet) { | |
| 173 var interfaceFunction = inspectedGlobalObject[interfaceName]; | |
| 174 // Call to instanceOf looks safe after typeof check. | |
| 175 var isInstance = typeof interfaceFunction === "function" && /* suppressB
lacklist */ object instanceof interfaceFunction; | |
| 176 if (isInstance) | |
| 177 return attribute in domAttributesWithObservableSideEffectOnGet[inter
faceName]; | |
| 178 } | |
| 179 return false; | |
| 180 } | |
| 181 | |
| 182 /** | |
| 183 * @constructor | |
| 184 */ | |
| 185 var InjectedScript = function() | |
| 186 { | |
| 187 } | |
| 188 | |
| 189 /** | |
| 190 * @type {!Object.<string, boolean>} | |
| 191 * @const | |
| 192 */ | |
| 193 InjectedScript.primitiveTypes = { | |
| 194 "undefined": true, | |
| 195 "boolean": true, | |
| 196 "number": true, | |
| 197 "string": true, | |
| 198 __proto__: null | |
| 199 } | |
| 200 | |
| 201 /** | |
| 202 * @type {!Object<string, string>} | |
| 203 * @const | |
| 204 */ | |
| 205 InjectedScript.closureTypes = { __proto__: null }; | |
| 206 InjectedScript.closureTypes["local"] = "Local"; | |
| 207 InjectedScript.closureTypes["closure"] = "Closure"; | |
| 208 InjectedScript.closureTypes["catch"] = "Catch"; | |
| 209 InjectedScript.closureTypes["block"] = "Block"; | |
| 210 InjectedScript.closureTypes["script"] = "Script"; | |
| 211 InjectedScript.closureTypes["with"] = "With Block"; | |
| 212 InjectedScript.closureTypes["global"] = "Global"; | |
| 213 | |
| 214 InjectedScript.prototype = { | |
| 215 /** | |
| 216 * @param {*} object | |
| 217 * @return {boolean} | |
| 218 */ | |
| 219 isPrimitiveValue: function(object) | |
| 220 { | |
| 221 // FIXME(33716): typeof document.all is always 'undefined'. | |
| 222 return InjectedScript.primitiveTypes[typeof object] && !this._isHTMLAllC
ollection(object); | |
| 223 }, | |
| 224 | |
| 225 /** | |
| 226 * @param {*} object | |
| 227 * @return {boolean} | |
| 228 */ | |
| 229 _shouldPassByValue: function(object) | |
| 230 { | |
| 231 return typeof object === "object" && InjectedScriptHost.subtype(object)
=== "internal#location"; | |
| 232 }, | |
| 233 | |
| 234 /** | |
| 235 * @param {*} object | |
| 236 * @param {string} groupName | |
| 237 * @param {boolean} forceValueType | |
| 238 * @param {boolean} generatePreview | |
| 239 * @return {!RuntimeAgent.RemoteObject} | |
| 240 */ | |
| 241 wrapObject: function(object, groupName, forceValueType, generatePreview) | |
| 242 { | |
| 243 return this._wrapObject(object, groupName, forceValueType, generatePrevi
ew); | |
| 244 }, | |
| 245 | |
| 246 /** | |
| 247 * @param {!Array<!Object>} array | |
| 248 * @param {string} property | |
| 249 * @param {string} groupName | |
| 250 * @param {boolean} forceValueType | |
| 251 * @param {boolean} generatePreview | |
| 252 */ | |
| 253 wrapPropertyInArray: function(array, property, groupName, forceValueType, ge
neratePreview) | |
| 254 { | |
| 255 for (var i = 0; i < array.length; ++i) { | |
| 256 if (typeof array[i] === "object" && property in array[i]) | |
| 257 array[i][property] = this.wrapObject(array[i][property], groupNa
me, forceValueType, generatePreview); | |
| 258 } | |
| 259 }, | |
| 260 | |
| 261 /** | |
| 262 * @param {!Array<*>} array | |
| 263 * @param {string} groupName | |
| 264 * @param {boolean} forceValueType | |
| 265 * @param {boolean} generatePreview | |
| 266 */ | |
| 267 wrapObjectsInArray: function(array, groupName, forceValueType, generatePrevi
ew) | |
| 268 { | |
| 269 for (var i = 0; i < array.length; ++i) | |
| 270 array[i] = this.wrapObject(array[i], groupName, forceValueType, gene
ratePreview); | |
| 271 }, | |
| 272 | |
| 273 /** | |
| 274 * @param {!Object} table | |
| 275 * @param {!Array.<string>|string|boolean} columns | |
| 276 * @return {!RuntimeAgent.RemoteObject} | |
| 277 */ | |
| 278 wrapTable: function(table, columns) | |
| 279 { | |
| 280 var columnNames = null; | |
| 281 if (typeof columns === "string") | |
| 282 columns = [columns]; | |
| 283 if (InjectedScriptHost.subtype(columns) === "array") { | |
| 284 columnNames = []; | |
| 285 for (var i = 0; i < columns.length; ++i) | |
| 286 columnNames[i] = toString(columns[i]); | |
| 287 } | |
| 288 return this._wrapObject(table, "console", false, true, columnNames, true
); | |
| 289 }, | |
| 290 | |
| 291 /** | |
| 292 * This method cannot throw. | |
| 293 * @param {*} object | |
| 294 * @param {string=} objectGroupName | |
| 295 * @param {boolean=} forceValueType | |
| 296 * @param {boolean=} generatePreview | |
| 297 * @param {?Array.<string>=} columnNames | |
| 298 * @param {boolean=} isTable | |
| 299 * @param {boolean=} doNotBind | |
| 300 * @param {*=} customObjectConfig | |
| 301 * @return {!RuntimeAgent.RemoteObject} | |
| 302 * @suppress {checkTypes} | |
| 303 */ | |
| 304 _wrapObject: function(object, objectGroupName, forceValueType, generatePrevi
ew, columnNames, isTable, doNotBind, customObjectConfig) | |
| 305 { | |
| 306 try { | |
| 307 return new InjectedScript.RemoteObject(object, objectGroupName, doNo
tBind, forceValueType, generatePreview, columnNames, isTable, undefined, customO
bjectConfig); | |
| 308 } catch (e) { | |
| 309 try { | |
| 310 var description = injectedScript._describe(e); | |
| 311 } catch (ex) { | |
| 312 var description = "<failed to convert exception to string>"; | |
| 313 } | |
| 314 return new InjectedScript.RemoteObject(description); | |
| 315 } | |
| 316 }, | |
| 317 | |
| 318 /** | |
| 319 * @param {!Object|symbol} object | |
| 320 * @param {string=} objectGroupName | |
| 321 * @return {string} | |
| 322 */ | |
| 323 _bind: function(object, objectGroupName) | |
| 324 { | |
| 325 var id = InjectedScriptHost.bind(object, objectGroupName || ""); | |
| 326 return "{\"injectedScriptId\":" + injectedScriptId + ",\"id\":" + id + "
}"; | |
| 327 }, | |
| 328 | |
| 329 /** | |
| 330 * @param {!Object} object | |
| 331 * @param {string} objectGroupName | |
| 332 * @param {boolean} ownProperties | |
| 333 * @param {boolean} accessorPropertiesOnly | |
| 334 * @param {boolean} generatePreview | |
| 335 * @return {!Array<!RuntimeAgent.PropertyDescriptor>|boolean} | |
| 336 */ | |
| 337 getProperties: function(object, objectGroupName, ownProperties, accessorProp
ertiesOnly, generatePreview) | |
| 338 { | |
| 339 var subtype = this._subtype(object); | |
| 340 if (subtype === "internal#scope") { | |
| 341 // Internally, scope contains object with scope variables and additi
onal information like type, | |
| 342 // we use additional information for preview and would like to repor
t variables as scope | |
| 343 // properties. | |
| 344 object = object.object; | |
| 345 } | |
| 346 | |
| 347 var descriptors = []; | |
| 348 var iter = this._propertyDescriptors(object, ownProperties, accessorProp
ertiesOnly, undefined); | |
| 349 // Go over properties, wrap object values. | |
| 350 for (var descriptor of iter) { | |
| 351 if (subtype === "internal#scopeList" && descriptor.name === "length"
) | |
| 352 continue; | |
| 353 if ("get" in descriptor) | |
| 354 descriptor.get = this._wrapObject(descriptor.get, objectGroupNam
e); | |
| 355 if ("set" in descriptor) | |
| 356 descriptor.set = this._wrapObject(descriptor.set, objectGroupNam
e); | |
| 357 if ("value" in descriptor) | |
| 358 descriptor.value = this._wrapObject(descriptor.value, objectGrou
pName, false, generatePreview); | |
| 359 if (!("configurable" in descriptor)) | |
| 360 descriptor.configurable = false; | |
| 361 if (!("enumerable" in descriptor)) | |
| 362 descriptor.enumerable = false; | |
| 363 if ("symbol" in descriptor) | |
| 364 descriptor.symbol = this._wrapObject(descriptor.symbol, objectGr
oupName); | |
| 365 push(descriptors, descriptor); | |
| 366 } | |
| 367 return descriptors; | |
| 368 }, | |
| 369 | |
| 370 /** | |
| 371 * @param {!Object} object | |
| 372 * @return {?Object} | |
| 373 */ | |
| 374 _objectPrototype: function(object) | |
| 375 { | |
| 376 if (InjectedScriptHost.subtype(object) === "proxy") | |
| 377 return null; | |
| 378 try { | |
| 379 return Object.getPrototypeOf(object); | |
| 380 } catch (e) { | |
| 381 return null; | |
| 382 } | |
| 383 }, | |
| 384 | |
| 385 /** | |
| 386 * @param {!Object} object | |
| 387 * @param {boolean=} ownProperties | |
| 388 * @param {boolean=} accessorPropertiesOnly | |
| 389 * @param {?Array.<string>=} propertyNamesOnly | |
| 390 */ | |
| 391 _propertyDescriptors: function*(object, ownProperties, accessorPropertiesOnl
y, propertyNamesOnly) | |
| 392 { | |
| 393 var propertyProcessed = { __proto__: null }; | |
| 394 | |
| 395 /** | |
| 396 * @param {?Object} o | |
| 397 * @param {!Iterable<string|symbol|number>|!Array<string|number|symbol>}
properties | |
| 398 */ | |
| 399 function* process(o, properties) | |
| 400 { | |
| 401 for (var property of properties) { | |
| 402 var name; | |
| 403 if (isSymbol(property)) | |
| 404 name = /** @type {string} */ (injectedScript._describe(prope
rty)); | |
| 405 else | |
| 406 name = typeof property === "number" ? ("" + property) : /**
@type {string} */(property); | |
| 407 | |
| 408 if (propertyProcessed[property]) | |
| 409 continue; | |
| 410 | |
| 411 try { | |
| 412 propertyProcessed[property] = true; | |
| 413 var descriptor = nullifyObjectProto(Object.getOwnPropertyDes
criptor(o, property)); | |
| 414 if (descriptor) { | |
| 415 if (accessorPropertiesOnly && !("get" in descriptor || "
set" in descriptor)) | |
| 416 continue; | |
| 417 if ("get" in descriptor && "set" in descriptor && name !
= "__proto__" && InjectedScriptHost.formatAccessorsAsProperties(object, descript
or.get) && !doesAttributeHaveObservableSideEffectOnGet(object, name)) { | |
| 418 descriptor.value = object[property]; | |
| 419 descriptor.isOwn = true; | |
| 420 delete descriptor.get; | |
| 421 delete descriptor.set; | |
| 422 } | |
| 423 } else { | |
| 424 // Not all bindings provide proper descriptors. Fall bac
k to the writable, configurable property. | |
| 425 if (accessorPropertiesOnly) | |
| 426 continue; | |
| 427 try { | |
| 428 descriptor = { name: name, value: o[property], writa
ble: false, configurable: false, enumerable: false, __proto__: null }; | |
| 429 if (o === object) | |
| 430 descriptor.isOwn = true; | |
| 431 yield descriptor; | |
| 432 } catch (e) { | |
| 433 // Silent catch. | |
| 434 } | |
| 435 continue; | |
| 436 } | |
| 437 } catch (e) { | |
| 438 if (accessorPropertiesOnly) | |
| 439 continue; | |
| 440 var descriptor = { __proto__: null }; | |
| 441 descriptor.value = e; | |
| 442 descriptor.wasThrown = true; | |
| 443 } | |
| 444 | |
| 445 descriptor.name = name; | |
| 446 if (o === object) | |
| 447 descriptor.isOwn = true; | |
| 448 if (isSymbol(property)) | |
| 449 descriptor.symbol = property; | |
| 450 yield descriptor; | |
| 451 } | |
| 452 } | |
| 453 | |
| 454 if (propertyNamesOnly) { | |
| 455 for (var i = 0; i < propertyNamesOnly.length; ++i) { | |
| 456 var name = propertyNamesOnly[i]; | |
| 457 for (var o = object; this._isDefined(o); o = this._objectPrototy
pe(o)) { | |
| 458 if (InjectedScriptHost.objectHasOwnProperty(o, name)) { | |
| 459 for (var descriptor of process(o, [name])) | |
| 460 yield descriptor; | |
| 461 break; | |
| 462 } | |
| 463 if (ownProperties) | |
| 464 break; | |
| 465 } | |
| 466 } | |
| 467 return; | |
| 468 } | |
| 469 | |
| 470 /** | |
| 471 * @param {number} length | |
| 472 */ | |
| 473 function* arrayIndexNames(length) | |
| 474 { | |
| 475 for (var i = 0; i < length; ++i) | |
| 476 yield "" + i; | |
| 477 } | |
| 478 | |
| 479 var skipGetOwnPropertyNames; | |
| 480 try { | |
| 481 skipGetOwnPropertyNames = InjectedScriptHost.subtype(object) === "ty
pedarray" && object.length > 500000; | |
| 482 } catch (e) { | |
| 483 } | |
| 484 | |
| 485 for (var o = object; this._isDefined(o); o = this._objectPrototype(o)) { | |
| 486 if (InjectedScriptHost.subtype(o) === "proxy") | |
| 487 continue; | |
| 488 if (skipGetOwnPropertyNames && o === object) { | |
| 489 // Avoid OOM crashes from getting all own property names of a la
rge TypedArray. | |
| 490 for (var descriptor of process(o, arrayIndexNames(o.length))) | |
| 491 yield descriptor; | |
| 492 } else { | |
| 493 // First call Object.keys() to enforce ordering of the property
descriptors. | |
| 494 for (var descriptor of process(o, Object.keys(/** @type {!Object
} */ (o)))) | |
| 495 yield descriptor; | |
| 496 for (var descriptor of process(o, Object.getOwnPropertyNames(/**
@type {!Object} */ (o)))) | |
| 497 yield descriptor; | |
| 498 } | |
| 499 if (Object.getOwnPropertySymbols) { | |
| 500 for (var descriptor of process(o, Object.getOwnPropertySymbols(/
** @type {!Object} */ (o)))) | |
| 501 yield descriptor; | |
| 502 } | |
| 503 if (ownProperties) { | |
| 504 var proto = this._objectPrototype(o); | |
| 505 if (proto && !accessorPropertiesOnly) | |
| 506 yield { name: "__proto__", value: proto, writable: true, con
figurable: true, enumerable: false, isOwn: true, __proto__: null }; | |
| 507 break; | |
| 508 } | |
| 509 } | |
| 510 }, | |
| 511 | |
| 512 /** | |
| 513 * @param {string|undefined} objectGroupName | |
| 514 * @param {*} jsonMLObject | |
| 515 * @throws {string} error message | |
| 516 */ | |
| 517 _substituteObjectTagsInCustomPreview: function(objectGroupName, jsonMLObject
) | |
| 518 { | |
| 519 var maxCustomPreviewRecursionDepth = 20; | |
| 520 this._customPreviewRecursionDepth = (this._customPreviewRecursionDepth |
| 0) + 1 | |
| 521 try { | |
| 522 if (this._customPreviewRecursionDepth >= maxCustomPreviewRecursionDe
pth) | |
| 523 throw new Error("Too deep hierarchy of inlined custom previews")
; | |
| 524 | |
| 525 if (!isArrayLike(jsonMLObject)) | |
| 526 return; | |
| 527 | |
| 528 if (jsonMLObject[0] === "object") { | |
| 529 var attributes = jsonMLObject[1]; | |
| 530 var originObject = attributes["object"]; | |
| 531 var config = attributes["config"]; | |
| 532 if (typeof originObject === "undefined") | |
| 533 throw new Error("Illegal format: obligatory attribute \"obje
ct\" isn't specified"); | |
| 534 | |
| 535 jsonMLObject[1] = this._wrapObject(originObject, objectGroupName
, false, false, null, false, false, config); | |
| 536 return; | |
| 537 } | |
| 538 | |
| 539 for (var i = 0; i < jsonMLObject.length; ++i) | |
| 540 this._substituteObjectTagsInCustomPreview(objectGroupName, jsonM
LObject[i]); | |
| 541 } finally { | |
| 542 this._customPreviewRecursionDepth--; | |
| 543 } | |
| 544 }, | |
| 545 | |
| 546 /** | |
| 547 * @param {*} object | |
| 548 * @return {boolean} | |
| 549 */ | |
| 550 _isDefined: function(object) | |
| 551 { | |
| 552 return !!object || this._isHTMLAllCollection(object); | |
| 553 }, | |
| 554 | |
| 555 /** | |
| 556 * @param {*} object | |
| 557 * @return {boolean} | |
| 558 */ | |
| 559 _isHTMLAllCollection: function(object) | |
| 560 { | |
| 561 // document.all is reported as undefined, but we still want to process i
t. | |
| 562 return (typeof object === "undefined") && !!InjectedScriptHost.subtype(o
bject); | |
| 563 }, | |
| 564 | |
| 565 /** | |
| 566 * @param {*} obj | |
| 567 * @return {?string} | |
| 568 */ | |
| 569 _subtype: function(obj) | |
| 570 { | |
| 571 if (obj === null) | |
| 572 return "null"; | |
| 573 | |
| 574 if (this.isPrimitiveValue(obj)) | |
| 575 return null; | |
| 576 | |
| 577 var subtype = InjectedScriptHost.subtype(obj); | |
| 578 if (subtype) | |
| 579 return subtype; | |
| 580 | |
| 581 if (isArrayLike(obj)) | |
| 582 return "array"; | |
| 583 | |
| 584 // If owning frame has navigated to somewhere else window properties wil
l be undefined. | |
| 585 return null; | |
| 586 }, | |
| 587 | |
| 588 /** | |
| 589 * @param {*} obj | |
| 590 * @return {?string} | |
| 591 */ | |
| 592 _describe: function(obj) | |
| 593 { | |
| 594 if (this.isPrimitiveValue(obj)) | |
| 595 return null; | |
| 596 | |
| 597 var subtype = this._subtype(obj); | |
| 598 | |
| 599 if (subtype === "regexp") | |
| 600 return toString(obj); | |
| 601 | |
| 602 if (subtype === "date") | |
| 603 return toString(obj); | |
| 604 | |
| 605 if (subtype === "node") { | |
| 606 var description = ""; | |
| 607 if (obj.nodeName) | |
| 608 description = obj.nodeName.toLowerCase(); | |
| 609 else if (obj.constructor) | |
| 610 description = obj.constructor.name.toLowerCase(); | |
| 611 | |
| 612 switch (obj.nodeType) { | |
| 613 case 1 /* Node.ELEMENT_NODE */: | |
| 614 description += obj.id ? "#" + obj.id : ""; | |
| 615 var className = obj.className; | |
| 616 description += (className && typeof className === "string") ? ".
" + className.trim().replace(/\s+/g, ".") : ""; | |
| 617 break; | |
| 618 case 10 /*Node.DOCUMENT_TYPE_NODE */: | |
| 619 description = "<!DOCTYPE " + description + ">"; | |
| 620 break; | |
| 621 } | |
| 622 return description; | |
| 623 } | |
| 624 | |
| 625 if (subtype === "proxy") | |
| 626 return "Proxy"; | |
| 627 | |
| 628 var className = InjectedScriptHost.internalConstructorName(obj); | |
| 629 if (subtype === "array" || subtype === "typedarray") { | |
| 630 if (typeof obj.length === "number") | |
| 631 className += "[" + obj.length + "]"; | |
| 632 return className; | |
| 633 } | |
| 634 | |
| 635 if (typeof obj === "function") | |
| 636 return toString(obj); | |
| 637 | |
| 638 if (isSymbol(obj)) { | |
| 639 try { | |
| 640 // It isn't safe, because Symbol.prototype.toString can be overr
iden. | |
| 641 return /* suppressBlacklist */ obj.toString() || "Symbol"; | |
| 642 } catch (e) { | |
| 643 return "Symbol"; | |
| 644 } | |
| 645 } | |
| 646 | |
| 647 if (InjectedScriptHost.subtype(obj) === "error") { | |
| 648 try { | |
| 649 var stack = obj.stack; | |
| 650 var message = obj.message && obj.message.length ? ": " + obj.mes
sage : ""; | |
| 651 var firstCallFrame = /^\s+at\s/m.exec(stack); | |
| 652 var stackMessageEnd = firstCallFrame ? firstCallFrame.index : -1
; | |
| 653 if (stackMessageEnd !== -1) { | |
| 654 var stackTrace = stack.substr(stackMessageEnd); | |
| 655 return className + message + "\n" + stackTrace; | |
| 656 } | |
| 657 return className + message; | |
| 658 } catch(e) { | |
| 659 } | |
| 660 } | |
| 661 | |
| 662 if (subtype === "internal#entry") { | |
| 663 if ("key" in obj) | |
| 664 return "{" + this._describeIncludingPrimitives(obj.key) + " => "
+ this._describeIncludingPrimitives(obj.value) + "}"; | |
| 665 return this._describeIncludingPrimitives(obj.value); | |
| 666 } | |
| 667 | |
| 668 if (subtype === "internal#scopeList") | |
| 669 return "Scopes[" + obj.length + "]"; | |
| 670 | |
| 671 if (subtype === "internal#scope") | |
| 672 return (InjectedScript.closureTypes[obj.type] || "Unknown") + (obj.n
ame ? " (" + obj.name + ")" : ""); | |
| 673 | |
| 674 return className; | |
| 675 }, | |
| 676 | |
| 677 /** | |
| 678 * @param {*} value | |
| 679 * @return {string} | |
| 680 */ | |
| 681 _describeIncludingPrimitives: function(value) | |
| 682 { | |
| 683 if (typeof value === "string") | |
| 684 return "\"" + value.replace(/\n/g, "\u21B5") + "\""; | |
| 685 if (value === null) | |
| 686 return "" + value; | |
| 687 return this.isPrimitiveValue(value) ? toStringDescription(value) : (this
._describe(value) || ""); | |
| 688 }, | |
| 689 | |
| 690 /** | |
| 691 * @param {boolean} enabled | |
| 692 */ | |
| 693 setCustomObjectFormatterEnabled: function(enabled) | |
| 694 { | |
| 695 this._customObjectFormatterEnabled = enabled; | |
| 696 } | |
| 697 } | |
| 698 | |
| 699 /** | |
| 700 * @type {!InjectedScript} | |
| 701 * @const | |
| 702 */ | |
| 703 var injectedScript = new InjectedScript(); | |
| 704 | |
| 705 /** | |
| 706 * @constructor | |
| 707 * @param {*} object | |
| 708 * @param {string=} objectGroupName | |
| 709 * @param {boolean=} doNotBind | |
| 710 * @param {boolean=} forceValueType | |
| 711 * @param {boolean=} generatePreview | |
| 712 * @param {?Array.<string>=} columnNames | |
| 713 * @param {boolean=} isTable | |
| 714 * @param {boolean=} skipEntriesPreview | |
| 715 * @param {*=} customObjectConfig | |
| 716 */ | |
| 717 InjectedScript.RemoteObject = function(object, objectGroupName, doNotBind, force
ValueType, generatePreview, columnNames, isTable, skipEntriesPreview, customObje
ctConfig) | |
| 718 { | |
| 719 this.type = typeof object; | |
| 720 if (this.type === "undefined" && injectedScript._isHTMLAllCollection(object)
) | |
| 721 this.type = "object"; | |
| 722 | |
| 723 if (injectedScript.isPrimitiveValue(object) || object === null || forceValue
Type) { | |
| 724 // We don't send undefined values over JSON. | |
| 725 if (this.type !== "undefined") | |
| 726 this.value = object; | |
| 727 | |
| 728 // Null object is object with 'null' subtype. | |
| 729 if (object === null) | |
| 730 this.subtype = "null"; | |
| 731 | |
| 732 // Provide user-friendly number values. | |
| 733 if (this.type === "number") { | |
| 734 this.description = toStringDescription(object); | |
| 735 switch (this.description) { | |
| 736 case "NaN": | |
| 737 case "Infinity": | |
| 738 case "-Infinity": | |
| 739 case "-0": | |
| 740 delete this.value; | |
| 741 this.unserializableValue = this.description; | |
| 742 break; | |
| 743 } | |
| 744 } | |
| 745 | |
| 746 return; | |
| 747 } | |
| 748 | |
| 749 if (injectedScript._shouldPassByValue(object)) { | |
| 750 this.value = object; | |
| 751 this.subtype = injectedScript._subtype(object); | |
| 752 this.description = injectedScript._describeIncludingPrimitives(object); | |
| 753 return; | |
| 754 } | |
| 755 | |
| 756 object = /** @type {!Object} */ (object); | |
| 757 | |
| 758 if (!doNotBind) | |
| 759 this.objectId = injectedScript._bind(object, objectGroupName); | |
| 760 var subtype = injectedScript._subtype(object); | |
| 761 if (subtype) | |
| 762 this.subtype = subtype; | |
| 763 var className = InjectedScriptHost.internalConstructorName(object); | |
| 764 if (className) | |
| 765 this.className = className; | |
| 766 this.description = injectedScript._describe(object); | |
| 767 | |
| 768 if (generatePreview && this.type === "object") { | |
| 769 if (this.subtype === "proxy") | |
| 770 this.preview = this._generatePreview(InjectedScriptHost.proxyTargetV
alue(object), undefined, columnNames, isTable, skipEntriesPreview); | |
| 771 else if (this.subtype !== "node") | |
| 772 this.preview = this._generatePreview(object, undefined, columnNames,
isTable, skipEntriesPreview); | |
| 773 } | |
| 774 | |
| 775 if (injectedScript._customObjectFormatterEnabled) { | |
| 776 var customPreview = this._customPreview(object, objectGroupName, customO
bjectConfig); | |
| 777 if (customPreview) | |
| 778 this.customPreview = customPreview; | |
| 779 } | |
| 780 } | |
| 781 | |
| 782 InjectedScript.RemoteObject.prototype = { | |
| 783 | |
| 784 /** | |
| 785 * @param {*} object | |
| 786 * @param {string=} objectGroupName | |
| 787 * @param {*=} customObjectConfig | |
| 788 * @return {?RuntimeAgent.CustomPreview} | |
| 789 */ | |
| 790 _customPreview: function(object, objectGroupName, customObjectConfig) | |
| 791 { | |
| 792 /** | |
| 793 * @param {!Error} error | |
| 794 */ | |
| 795 function logError(error) | |
| 796 { | |
| 797 // We use user code to generate custom output for object, we can use
user code for reporting error too. | |
| 798 Promise.resolve().then(/* suppressBlacklist */ inspectedGlobalObject
.console.error.bind(inspectedGlobalObject.console, "Custom Formatter Failed: " +
error.message)); | |
| 799 } | |
| 800 | |
| 801 /** | |
| 802 * @suppressReceiverCheck | |
| 803 * @param {*} object | |
| 804 * @param {*=} customObjectConfig | |
| 805 * @return {*} | |
| 806 */ | |
| 807 function wrap(object, customObjectConfig) | |
| 808 { | |
| 809 return injectedScript._wrapObject(object, objectGroupName, false, fa
lse, null, false, false, customObjectConfig); | |
| 810 } | |
| 811 | |
| 812 try { | |
| 813 var formatters = inspectedGlobalObject["devtoolsFormatters"]; | |
| 814 if (!formatters || !isArrayLike(formatters)) | |
| 815 return null; | |
| 816 | |
| 817 for (var i = 0; i < formatters.length; ++i) { | |
| 818 try { | |
| 819 var formatted = formatters[i].header(object, customObjectCon
fig); | |
| 820 if (!formatted) | |
| 821 continue; | |
| 822 | |
| 823 var hasBody = formatters[i].hasBody(object, customObjectConf
ig); | |
| 824 injectedScript._substituteObjectTagsInCustomPreview(objectGr
oupName, formatted); | |
| 825 var formatterObjectId = injectedScript._bind(formatters[i],
objectGroupName); | |
| 826 var bindRemoteObjectFunctionId = injectedScript._bind(wrap,
objectGroupName); | |
| 827 var result = {header: JSON.stringify(formatted), hasBody: !!
hasBody, formatterObjectId: formatterObjectId, bindRemoteObjectFunctionId: bindR
emoteObjectFunctionId}; | |
| 828 if (customObjectConfig) | |
| 829 result["configObjectId"] = injectedScript._bind(customOb
jectConfig, objectGroupName); | |
| 830 return result; | |
| 831 } catch (e) { | |
| 832 logError(e); | |
| 833 } | |
| 834 } | |
| 835 } catch (e) { | |
| 836 logError(e); | |
| 837 } | |
| 838 return null; | |
| 839 }, | |
| 840 | |
| 841 /** | |
| 842 * @return {!RuntimeAgent.ObjectPreview} preview | |
| 843 */ | |
| 844 _createEmptyPreview: function() | |
| 845 { | |
| 846 var preview = { | |
| 847 type: /** @type {!RuntimeAgent.ObjectPreviewType.<string>} */ (this.
type), | |
| 848 description: this.description || toStringDescription(this.value), | |
| 849 overflow: false, | |
| 850 properties: [], | |
| 851 __proto__: null | |
| 852 }; | |
| 853 if (this.subtype) | |
| 854 preview.subtype = /** @type {!RuntimeAgent.ObjectPreviewSubtype.<str
ing>} */ (this.subtype); | |
| 855 return preview; | |
| 856 }, | |
| 857 | |
| 858 /** | |
| 859 * @param {!Object} object | |
| 860 * @param {?Array.<string>=} firstLevelKeys | |
| 861 * @param {?Array.<string>=} secondLevelKeys | |
| 862 * @param {boolean=} isTable | |
| 863 * @param {boolean=} skipEntriesPreview | |
| 864 * @return {!RuntimeAgent.ObjectPreview} preview | |
| 865 */ | |
| 866 _generatePreview: function(object, firstLevelKeys, secondLevelKeys, isTable,
skipEntriesPreview) | |
| 867 { | |
| 868 var preview = this._createEmptyPreview(); | |
| 869 var firstLevelKeysCount = firstLevelKeys ? firstLevelKeys.length : 0; | |
| 870 | |
| 871 var propertiesThreshold = { | |
| 872 properties: isTable ? 1000 : max(5, firstLevelKeysCount), | |
| 873 indexes: isTable ? 1000 : max(100, firstLevelKeysCount), | |
| 874 __proto__: null | |
| 875 }; | |
| 876 | |
| 877 try { | |
| 878 var descriptors = injectedScript._propertyDescriptors(object, undefi
ned, undefined, firstLevelKeys); | |
| 879 | |
| 880 this._appendPropertyDescriptors(preview, descriptors, propertiesThre
shold, secondLevelKeys, isTable); | |
| 881 if (propertiesThreshold.indexes < 0 || propertiesThreshold.propertie
s < 0) | |
| 882 return preview; | |
| 883 | |
| 884 // Add internal properties to preview. | |
| 885 var rawInternalProperties = InjectedScriptHost.getInternalProperties
(object) || []; | |
| 886 var internalProperties = []; | |
| 887 var entries = null; | |
| 888 for (var i = 0; i < rawInternalProperties.length; i += 2) { | |
| 889 if (rawInternalProperties[i] === "[[Entries]]") { | |
| 890 entries = /** @type {!Array<*>} */(rawInternalProperties[i +
1]); | |
| 891 continue; | |
| 892 } | |
| 893 push(internalProperties, { | |
| 894 name: rawInternalProperties[i], | |
| 895 value: rawInternalProperties[i + 1], | |
| 896 isOwn: true, | |
| 897 enumerable: true, | |
| 898 __proto__: null | |
| 899 }); | |
| 900 } | |
| 901 this._appendPropertyDescriptors(preview, internalProperties, propert
iesThreshold, secondLevelKeys, isTable); | |
| 902 | |
| 903 if (this.subtype === "map" || this.subtype === "set" || this.subtype
=== "iterator") | |
| 904 this._appendEntriesPreview(entries, preview, skipEntriesPreview)
; | |
| 905 | |
| 906 } catch (e) {} | |
| 907 | |
| 908 return preview; | |
| 909 }, | |
| 910 | |
| 911 /** | |
| 912 * @param {!RuntimeAgent.ObjectPreview} preview | |
| 913 * @param {!Array.<*>|!Iterable.<*>} descriptors | |
| 914 * @param {!Object} propertiesThreshold | |
| 915 * @param {?Array.<string>=} secondLevelKeys | |
| 916 * @param {boolean=} isTable | |
| 917 */ | |
| 918 _appendPropertyDescriptors: function(preview, descriptors, propertiesThresho
ld, secondLevelKeys, isTable) | |
| 919 { | |
| 920 for (var descriptor of descriptors) { | |
| 921 if (propertiesThreshold.indexes < 0 || propertiesThreshold.propertie
s < 0) | |
| 922 break; | |
| 923 if (!descriptor || descriptor.wasThrown) | |
| 924 continue; | |
| 925 | |
| 926 var name = descriptor.name; | |
| 927 | |
| 928 // Ignore __proto__ property. | |
| 929 if (name === "__proto__") | |
| 930 continue; | |
| 931 | |
| 932 // Ignore length property of array. | |
| 933 if ((this.subtype === "array" || this.subtype === "typedarray") && n
ame === "length") | |
| 934 continue; | |
| 935 | |
| 936 // Ignore size property of map, set. | |
| 937 if ((this.subtype === "map" || this.subtype === "set") && name === "
size") | |
| 938 continue; | |
| 939 | |
| 940 // Never preview prototype properties. | |
| 941 if (!descriptor.isOwn) | |
| 942 continue; | |
| 943 | |
| 944 // Ignore computed properties. | |
| 945 if (!("value" in descriptor)) | |
| 946 continue; | |
| 947 | |
| 948 var value = descriptor.value; | |
| 949 var type = typeof value; | |
| 950 | |
| 951 // Never render functions in object preview. | |
| 952 if (type === "function" && (this.subtype !== "array" || !isUInt32(na
me))) | |
| 953 continue; | |
| 954 | |
| 955 // Special-case HTMLAll. | |
| 956 if (type === "undefined" && injectedScript._isHTMLAllCollection(valu
e)) | |
| 957 type = "object"; | |
| 958 | |
| 959 // Render own properties. | |
| 960 if (value === null) { | |
| 961 this._appendPropertyPreview(preview, { name: name, type: "object
", subtype: "null", value: "null", __proto__: null }, propertiesThreshold); | |
| 962 continue; | |
| 963 } | |
| 964 | |
| 965 var maxLength = 100; | |
| 966 if (InjectedScript.primitiveTypes[type]) { | |
| 967 if (type === "string" && value.length > maxLength) | |
| 968 value = this._abbreviateString(value, maxLength, true); | |
| 969 this._appendPropertyPreview(preview, { name: name, type: type, v
alue: toStringDescription(value), __proto__: null }, propertiesThreshold); | |
| 970 continue; | |
| 971 } | |
| 972 | |
| 973 var property = { name: name, type: type, __proto__: null }; | |
| 974 var subtype = injectedScript._subtype(value); | |
| 975 if (subtype) | |
| 976 property.subtype = subtype; | |
| 977 | |
| 978 if (secondLevelKeys === null || secondLevelKeys) { | |
| 979 var subPreview = this._generatePreview(value, secondLevelKeys ||
undefined, undefined, isTable); | |
| 980 property.valuePreview = subPreview; | |
| 981 if (subPreview.overflow) | |
| 982 preview.overflow = true; | |
| 983 } else { | |
| 984 var description = ""; | |
| 985 if (type !== "function") | |
| 986 description = this._abbreviateString(/** @type {string} */ (
injectedScript._describe(value)), maxLength, subtype === "regexp"); | |
| 987 property.value = description; | |
| 988 } | |
| 989 this._appendPropertyPreview(preview, property, propertiesThreshold); | |
| 990 } | |
| 991 }, | |
| 992 | |
| 993 /** | |
| 994 * @param {!RuntimeAgent.ObjectPreview} preview | |
| 995 * @param {!Object} property | |
| 996 * @param {!Object} propertiesThreshold | |
| 997 */ | |
| 998 _appendPropertyPreview: function(preview, property, propertiesThreshold) | |
| 999 { | |
| 1000 if (toString(property.name >>> 0) === property.name) | |
| 1001 propertiesThreshold.indexes--; | |
| 1002 else | |
| 1003 propertiesThreshold.properties--; | |
| 1004 if (propertiesThreshold.indexes < 0 || propertiesThreshold.properties <
0) { | |
| 1005 preview.overflow = true; | |
| 1006 } else { | |
| 1007 push(preview.properties, property); | |
| 1008 } | |
| 1009 }, | |
| 1010 | |
| 1011 /** | |
| 1012 * @param {?Array<*>} entries | |
| 1013 * @param {!RuntimeAgent.ObjectPreview} preview | |
| 1014 * @param {boolean=} skipEntriesPreview | |
| 1015 */ | |
| 1016 _appendEntriesPreview: function(entries, preview, skipEntriesPreview) | |
| 1017 { | |
| 1018 if (!entries) | |
| 1019 return; | |
| 1020 if (skipEntriesPreview) { | |
| 1021 if (entries.length) | |
| 1022 preview.overflow = true; | |
| 1023 return; | |
| 1024 } | |
| 1025 preview.entries = []; | |
| 1026 var entriesThreshold = 5; | |
| 1027 for (var i = 0; i < entries.length; ++i) { | |
| 1028 if (preview.entries.length >= entriesThreshold) { | |
| 1029 preview.overflow = true; | |
| 1030 break; | |
| 1031 } | |
| 1032 var entry = nullifyObjectProto(entries[i]); | |
| 1033 var previewEntry = { | |
| 1034 value: generateValuePreview(entry.value), | |
| 1035 __proto__: null | |
| 1036 }; | |
| 1037 if ("key" in entry) | |
| 1038 previewEntry.key = generateValuePreview(entry.key); | |
| 1039 push(preview.entries, previewEntry); | |
| 1040 } | |
| 1041 | |
| 1042 /** | |
| 1043 * @param {*} value | |
| 1044 * @return {!RuntimeAgent.ObjectPreview} | |
| 1045 */ | |
| 1046 function generateValuePreview(value) | |
| 1047 { | |
| 1048 var remoteObject = new InjectedScript.RemoteObject(value, undefined,
true, undefined, true, undefined, undefined, true); | |
| 1049 var valuePreview = remoteObject.preview || remoteObject._createEmpty
Preview(); | |
| 1050 return valuePreview; | |
| 1051 } | |
| 1052 }, | |
| 1053 | |
| 1054 /** | |
| 1055 * @param {string} string | |
| 1056 * @param {number} maxLength | |
| 1057 * @param {boolean=} middle | |
| 1058 * @return {string} | |
| 1059 */ | |
| 1060 _abbreviateString: function(string, maxLength, middle) | |
| 1061 { | |
| 1062 if (string.length <= maxLength) | |
| 1063 return string; | |
| 1064 if (middle) { | |
| 1065 var leftHalf = maxLength >> 1; | |
| 1066 var rightHalf = maxLength - leftHalf - 1; | |
| 1067 return string.substr(0, leftHalf) + "\u2026" + string.substr(string.
length - rightHalf, rightHalf); | |
| 1068 } | |
| 1069 return string.substr(0, maxLength) + "\u2026"; | |
| 1070 }, | |
| 1071 | |
| 1072 __proto__: null | |
| 1073 } | |
| 1074 | |
| 1075 return injectedScript; | |
| 1076 }) | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2295913003:
[DevTools] Switch from platform/v8_inspector to v8/v8-inspector.h. (Closed)
