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Configuration error
Configuration error
; | |
var GetIntrinsic = require('get-intrinsic'); | |
var $gOPD = require('gopd'); | |
var $TypeError = GetIntrinsic('%TypeError%'); | |
var callBound = require('call-bind/callBound'); | |
var $isEnumerable = callBound('Object.prototype.propertyIsEnumerable'); | |
var hasOwn = require('hasown'); | |
var IsArray = require('./IsArray'); | |
var IsPropertyKey = require('./IsPropertyKey'); | |
var IsRegExp = require('./IsRegExp'); | |
var ToPropertyDescriptor = require('./ToPropertyDescriptor'); | |
var Type = require('./Type'); | |
// https://262.ecma-international.org/6.0/#sec-ordinarygetownproperty | |
module.exports = function OrdinaryGetOwnProperty(O, P) { | |
if (Type(O) !== 'Object') { | |
throw new $TypeError('Assertion failed: O must be an Object'); | |
} | |
if (!IsPropertyKey(P)) { | |
throw new $TypeError('Assertion failed: P must be a Property Key'); | |
} | |
if (!hasOwn(O, P)) { | |
return void 0; | |
} | |
if (!$gOPD) { | |
// ES3 / IE 8 fallback | |
var arrayLength = IsArray(O) && P === 'length'; | |
var regexLastIndex = IsRegExp(O) && P === 'lastIndex'; | |
return { | |
'[[Configurable]]': !(arrayLength || regexLastIndex), | |
'[[Enumerable]]': $isEnumerable(O, P), | |
'[[Value]]': O[P], | |
'[[Writable]]': true | |
}; | |
} | |
return ToPropertyDescriptor($gOPD(O, P)); | |
}; | |