spread-obj-symbol-property.js (1727B)
1 // This file was procedurally generated from the following sources: 2 // - src/spread/obj-symbol-property.case 3 // - src/spread/default/array.template 4 /*--- 5 description: Spread operation where source object contains Symbol properties (Array initializer) 6 esid: sec-runtime-semantics-arrayaccumulation 7 features: [Symbol, 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 Pending Runtime Semantics: PropertyDefinitionEvaluation 25 26 PropertyDefinition:...AssignmentExpression 27 28 1. Let exprValue be the result of evaluating AssignmentExpression. 29 2. Let fromValue be GetValue(exprValue). 30 3. ReturnIfAbrupt(fromValue). 31 4. Let excludedNames be a new empty List. 32 5. Return CopyDataProperties(object, fromValue, excludedNames). 33 34 ---*/ 35 let symbol = Symbol('foo'); 36 let o = {}; 37 o[symbol] = 1; 38 39 40 var callCount = 0; 41 42 (function(obj) { 43 assert.sameValue(obj[symbol], 1); 44 assert(Object.prototype.hasOwnProperty.call(obj, symbol), "symbol is an own property"); 45 assert.sameValue(obj.c, 4); 46 assert.sameValue(obj.d, 5); 47 assert.sameValue(Object.keys(obj).length, 2); 48 callCount += 1; 49 }.apply(null, [{...o, c: 4, d: 5}])); 50 51 assert.sameValue(callCount, 1); 52 53 reportCompare(0, 0);