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62 lines
2.3 KiB
62 lines
2.3 KiB
1 year ago
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'use strict';
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var GetIntrinsic = require('get-intrinsic');
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var $gOPD = require('../helpers/getOwnPropertyDescriptor');
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var $SyntaxError = GetIntrinsic('%SyntaxError%');
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var $TypeError = GetIntrinsic('%TypeError%');
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var isPropertyDescriptor = require('../helpers/isPropertyDescriptor');
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var IsAccessorDescriptor = require('./IsAccessorDescriptor');
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var IsDataDescriptor = require('./IsDataDescriptor');
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var IsExtensible = require('./IsExtensible');
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var IsPropertyKey = require('./IsPropertyKey');
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var ToPropertyDescriptor = require('./ToPropertyDescriptor');
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var SameValue = require('./SameValue');
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var Type = require('./Type');
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var ValidateAndApplyPropertyDescriptor = require('./ValidateAndApplyPropertyDescriptor');
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// https://ecma-international.org/ecma-262/6.0/#sec-ordinarydefineownproperty
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module.exports = function OrdinaryDefineOwnProperty(O, P, Desc) {
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if (Type(O) !== 'Object') {
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throw new $TypeError('Assertion failed: O must be an Object');
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}
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if (!IsPropertyKey(P)) {
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throw new $TypeError('Assertion failed: P must be a Property Key');
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}
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if (!isPropertyDescriptor({
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Type: Type,
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IsDataDescriptor: IsDataDescriptor,
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IsAccessorDescriptor: IsAccessorDescriptor
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}, Desc)) {
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throw new $TypeError('Assertion failed: Desc must be a Property Descriptor');
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}
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if (!$gOPD) {
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// ES3/IE 8 fallback
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if (IsAccessorDescriptor(Desc)) {
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throw new $SyntaxError('This environment does not support accessor property descriptors.');
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}
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var creatingNormalDataProperty = !(P in O)
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&& Desc['[[Writable]]']
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&& Desc['[[Enumerable]]']
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&& Desc['[[Configurable]]']
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&& '[[Value]]' in Desc;
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var settingExistingDataProperty = (P in O)
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&& (!('[[Configurable]]' in Desc) || Desc['[[Configurable]]'])
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&& (!('[[Enumerable]]' in Desc) || Desc['[[Enumerable]]'])
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&& (!('[[Writable]]' in Desc) || Desc['[[Writable]]'])
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&& '[[Value]]' in Desc;
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if (creatingNormalDataProperty || settingExistingDataProperty) {
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O[P] = Desc['[[Value]]']; // eslint-disable-line no-param-reassign
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return SameValue(O[P], Desc['[[Value]]']);
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}
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throw new $SyntaxError('This environment does not support defining non-writable, non-enumerable, or non-configurable properties');
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}
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var desc = $gOPD(O, P);
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var current = desc && ToPropertyDescriptor(desc);
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var extensible = IsExtensible(O);
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return ValidateAndApplyPropertyDescriptor(O, P, extensible, Desc, current);
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};
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