spread-obj-getter-descriptor.js (1499B)
1 // This file was procedurally generated from the following sources: 2 // - src/spread/obj-getter-descriptor.case 3 // - src/spread/default/call-expr.template 4 /*--- 5 description: Spread operation with getter results in data property descriptor (CallExpression) 6 esid: sec-function-calls-runtime-semantics-evaluation 7 features: [object-spread] 8 flags: [generated] 9 includes: [propertyHelper.js] 10 info: | 11 CallExpression : MemberExpression Arguments 12 13 [...] 14 9. Return EvaluateDirectCall(func, thisValue, Arguments, tailCall). 15 16 12.3.4.3 Runtime Semantics: EvaluateDirectCall 17 18 1. Let argList be ArgumentListEvaluation(arguments). 19 [...] 20 6. Let result be Call(func, thisValue, argList). 21 [...] 22 23 Pending Runtime Semantics: PropertyDefinitionEvaluation 24 25 PropertyDefinition:...AssignmentExpression 26 27 1. Let exprValue be the result of evaluating AssignmentExpression. 28 2. Let fromValue be GetValue(exprValue). 29 3. ReturnIfAbrupt(fromValue). 30 4. Let excludedNames be a new empty List. 31 5. Return CopyDataProperties(object, fromValue, excludedNames). 32 33 ---*/ 34 let o = { 35 get a() { 36 return 42; 37 } 38 }; 39 40 41 var callCount = 0; 42 43 (function(obj) { 44 assert.sameValue(obj.c, 4); 45 assert.sameValue(obj.d, 5); 46 assert.sameValue(Object.keys(obj).length, 3); 47 48 verifyProperty(obj, "a", { 49 enumerable: true, 50 writable: true, 51 configurable: true, 52 value: 42 53 }); 54 callCount += 1; 55 }({...o, c: 4, d: 5})); 56 57 assert.sameValue(callCount, 1); 58 59 reportCompare(0, 0);