spread-obj-skip-non-enumerable.js (1210B)
1 // This file was procedurally generated from the following sources: 2 // - src/spread/obj-skip-non-enumerable.case 3 // - src/spread/default/array.template 4 /*--- 5 description: Object Spread doesn't copy non-enumerable properties (Array initializer) 6 esid: sec-runtime-semantics-arrayaccumulation 7 features: [object-spread] 8 flags: [generated] 9 info: | 10 SpreadElement : ...AssignmentExpression 11 12 1. Let spreadRef be the result of evaluating AssignmentExpression. 13 2. Let spreadObj be ? GetValue(spreadRef). 14 3. Let iterator be ? GetIterator(spreadObj). 15 4. Repeat 16 a. Let next be ? IteratorStep(iterator). 17 b. If next is false, return nextIndex. 18 c. Let nextValue be ? IteratorValue(next). 19 d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)), 20 nextValue). 21 e. Assert: status is true. 22 f. Let nextIndex be nextIndex + 1. 23 ---*/ 24 25 let o = {}; 26 Object.defineProperty(o, "b", {value: 3, enumerable: false}); 27 28 29 var callCount = 0; 30 31 (function(obj) { 32 assert.sameValue(obj.hasOwnProperty("b"), false) 33 assert.sameValue(Object.keys(obj).length, 0); 34 callCount += 1; 35 }.apply(null, [{...o}])); 36 37 assert.sameValue(callCount, 1); 38 39 reportCompare(0, 0);