Sha256: 78b5dfba0830bc47aa55c1b33f2be8fd973ff5ccc87a599abadda676d3596c49
Contents?: true
Size: 1.42 KB
Versions: 298
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Stored size: 1.42 KB
Contents
'use strict';
var has = require('has');
var GetIntrinsic = require('get-intrinsic');
var $TypeError = GetIntrinsic('%TypeError%');
var Type = require('./Type');
var ToBoolean = require('./ToBoolean');
var IsCallable = require('./IsCallable');
// https://262.ecma-international.org/5.1/#sec-8.10.5
module.exports = function ToPropertyDescriptor(Obj) {
if (Type(Obj) !== 'Object') {
throw new $TypeError('ToPropertyDescriptor requires an object');
}
var desc = {};
if (has(Obj, 'enumerable')) {
desc['[[Enumerable]]'] = ToBoolean(Obj.enumerable);
}
if (has(Obj, 'configurable')) {
desc['[[Configurable]]'] = ToBoolean(Obj.configurable);
}
if (has(Obj, 'value')) {
desc['[[Value]]'] = Obj.value;
}
if (has(Obj, 'writable')) {
desc['[[Writable]]'] = ToBoolean(Obj.writable);
}
if (has(Obj, 'get')) {
var getter = Obj.get;
if (typeof getter !== 'undefined' && !IsCallable(getter)) {
throw new $TypeError('getter must be a function');
}
desc['[[Get]]'] = getter;
}
if (has(Obj, 'set')) {
var setter = Obj.set;
if (typeof setter !== 'undefined' && !IsCallable(setter)) {
throw new $TypeError('setter must be a function');
}
desc['[[Set]]'] = setter;
}
if ((has(desc, '[[Get]]') || has(desc, '[[Set]]')) && (has(desc, '[[Value]]') || has(desc, '[[Writable]]'))) {
throw new $TypeError('Invalid property descriptor. Cannot both specify accessors and a value or writable attribute');
}
return desc;
};
Version data entries
298 entries across 30 versions & 4 rubygems