properties-arg-to-object-non-empty-string.js (1298B)
1 // Copyright (C) 2019 Leo Balter. All rights reserved. 2 // This code is governed by the BSD license found in the LICENSE file. 3 4 /*--- 5 esid: sec-object.create 6 description: > 7 Throws a TypeError if the Properties argument is a non-empty string 8 info: | 9 Object.create ( O, Properties ) 10 11 3. If Properties is not undefined, then 12 a. Return ? ObjectDefineProperties(obj, Properties). 13 14 Runtime Semantics: ObjectDefineProperties ( O, Properties ) 15 16 2. Let props be ? ToObject(Properties). 17 3. Let keys be ? props.[[OwnPropertyKeys]](). 18 4. Let descriptors be a new empty List. 19 5. For each element nextKey of keys in List order, do 20 a. Let propDesc be ? props.[[GetOwnProperty]](nextKey). 21 b. If propDesc is not undefined and propDesc.[[Enumerable]] is true, then 22 i. Let descObj be ? Get(props, nextKey). 23 ii. Let desc be ? ToPropertyDescriptor(descObj). 24 25 ToPropertyDescriptor ( Obj ) 26 27 1. If Type(Obj) is not Object, throw a TypeError exception. 28 ---*/ 29 30 // The first nextKey is 'h' and its OwnProperty in the String object is enumerable 31 // Get(props, nextKey) is an equivalent of Object('hello')[nextKey] 32 // The first descObj will be 'h', so it will throw in ToPropertyDescriptor 33 assert.throws(TypeError, function() { 34 Object.create({}, 'hello'); 35 }); 36 37 reportCompare(0, 0);