spread-mult-obj-null.js (1290B)
1 // This file was procedurally generated from the following sources: 2 // - src/spread/mult-obj-null.case 3 // - src/spread/default/member-expr.template 4 /*--- 5 description: Object Spread operator following other arguments with null value (`new` operator) 6 esid: sec-new-operator-runtime-semantics-evaluation 7 features: [object-spread] 8 flags: [generated] 9 info: | 10 MemberExpression : new MemberExpression Arguments 11 12 1. Return EvaluateNew(MemberExpression, Arguments). 13 14 12.3.3.1.1 Runtime Semantics: EvaluateNew 15 16 6. If arguments is empty, let argList be an empty List. 17 7. Else, 18 a. Let argList be ArgumentListEvaluation of arguments. 19 [...] 20 21 Pending Runtime Semantics: PropertyDefinitionEvaluation 22 23 PropertyDefinition:...AssignmentExpression 24 25 1. Let exprValue be the result of evaluating AssignmentExpression. 26 2. Let fromValue be GetValue(exprValue). 27 3. ReturnIfAbrupt(fromValue). 28 4. Let excludedNames be a new empty List. 29 5. Return CopyDataProperties(object, fromValue, excludedNames). 30 31 ---*/ 32 33 var callCount = 0; 34 35 new function(obj) { 36 assert.sameValue(obj.a, 1); 37 assert.sameValue(obj.b, 2); 38 assert.sameValue(Object.keys(obj).length, 2); 39 callCount += 1; 40 }({a: 1, b: 2, ...null}); 41 42 assert.sameValue(callCount, 1); 43 44 reportCompare(0, 0);