spread-obj-symbol-property.js (1487B)
1 // This file was procedurally generated from the following sources: 2 // - src/spread/obj-symbol-property.case 3 // - src/spread/default/call-expr.template 4 /*--- 5 description: Spread operation where source object contains Symbol properties (CallExpression) 6 esid: sec-function-calls-runtime-semantics-evaluation 7 features: [Symbol, object-spread] 8 flags: [generated] 9 info: | 10 CallExpression : MemberExpression Arguments 11 12 [...] 13 9. Return EvaluateDirectCall(func, thisValue, Arguments, tailCall). 14 15 12.3.4.3 Runtime Semantics: EvaluateDirectCall 16 17 1. Let argList be ArgumentListEvaluation(arguments). 18 [...] 19 6. Let result be Call(func, thisValue, argList). 20 [...] 21 22 Pending Runtime Semantics: PropertyDefinitionEvaluation 23 24 PropertyDefinition:...AssignmentExpression 25 26 1. Let exprValue be the result of evaluating AssignmentExpression. 27 2. Let fromValue be GetValue(exprValue). 28 3. ReturnIfAbrupt(fromValue). 29 4. Let excludedNames be a new empty List. 30 5. Return CopyDataProperties(object, fromValue, excludedNames). 31 32 ---*/ 33 let symbol = Symbol('foo'); 34 let o = {}; 35 o[symbol] = 1; 36 37 38 var callCount = 0; 39 40 (function(obj) { 41 assert.sameValue(obj[symbol], 1); 42 assert(Object.prototype.hasOwnProperty.call(obj, symbol), "symbol is an own property"); 43 assert.sameValue(obj.c, 4); 44 assert.sameValue(obj.d, 5); 45 assert.sameValue(Object.keys(obj).length, 2); 46 callCount += 1; 47 }({...o, c: 4, d: 5})); 48 49 assert.sameValue(callCount, 1); 50 51 reportCompare(0, 0);