| 1 | 'use strict';
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| 2 |
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| 3 | var hasOwn = require('hasown');
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| 4 |
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| 5 | var $TypeError = require('es-errors/type');
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| 6 | var isObject = require('es-object-atoms/isObject');
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| 7 |
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| 8 | var IsCallable = require('./IsCallable');
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| 9 | var ToBoolean = require('./ToBoolean');
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| 10 |
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| 11 | // https://262.ecma-international.org/5.1/#sec-8.10.5
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| 12 |
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| 13 | module.exports = function ToPropertyDescriptor(Obj) {
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| 14 | if (!isObject(Obj)) {
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| 15 | throw new $TypeError('ToPropertyDescriptor requires an object');
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| 16 | }
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| 17 |
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| 18 | var desc = {};
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| 19 | if (hasOwn(Obj, 'enumerable')) {
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| 20 | desc['[[Enumerable]]'] = ToBoolean(Obj.enumerable);
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| 21 | }
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| 22 | if (hasOwn(Obj, 'configurable')) {
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| 23 | desc['[[Configurable]]'] = ToBoolean(Obj.configurable);
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| 24 | }
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| 25 | if (hasOwn(Obj, 'value')) {
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| 26 | desc['[[Value]]'] = Obj.value;
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| 27 | }
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| 28 | if (hasOwn(Obj, 'writable')) {
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| 29 | desc['[[Writable]]'] = ToBoolean(Obj.writable);
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| 30 | }
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| 31 | if (hasOwn(Obj, 'get')) {
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| 32 | var getter = Obj.get;
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| 33 | if (typeof getter !== 'undefined' && !IsCallable(getter)) {
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| 34 | throw new $TypeError('getter must be a function');
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| 35 | }
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| 36 | desc['[[Get]]'] = getter;
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| 37 | }
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| 38 | if (hasOwn(Obj, 'set')) {
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| 39 | var setter = Obj.set;
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| 40 | if (typeof setter !== 'undefined' && !IsCallable(setter)) {
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| 41 | throw new $TypeError('setter must be a function');
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| 42 | }
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| 43 | desc['[[Set]]'] = setter;
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| 44 | }
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| 45 |
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| 46 | if ((hasOwn(desc, '[[Get]]') || hasOwn(desc, '[[Set]]')) && (hasOwn(desc, '[[Value]]') || hasOwn(desc, '[[Writable]]'))) {
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| 47 | throw new $TypeError('Invalid property descriptor. Cannot both specify accessors and a value or writable attribute');
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| 48 | }
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| 49 | return desc;
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| 50 | };
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