obj-ptrn-rest-val-obj.js (1786B)
1 // This file was procedurally generated from the following sources: 2 // - src/dstr-binding/obj-ptrn-rest-val-obj.case 3 // - src/dstr-binding/default/arrow-function.template 4 /*--- 5 description: Rest object contains just unextracted data (arrow function expression) 6 esid: sec-arrow-function-definitions-runtime-semantics-evaluation 7 features: [object-rest, destructuring-binding] 8 flags: [generated] 9 includes: [propertyHelper.js] 10 info: | 11 ArrowFunction : ArrowParameters => ConciseBody 12 13 [...] 14 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict). 15 [...] 16 17 9.2.1 [[Call]] ( thisArgument, argumentsList) 18 19 [...] 20 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). 21 [...] 22 23 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) 24 25 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). 26 [...] 27 28 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) 29 30 [...] 31 23. Let iteratorRecord be Record {[[iterator]]: 32 CreateListIterator(argumentsList), [[done]]: false}. 33 24. If hasDuplicates is true, then 34 [...] 35 25. Else, 36 b. Let formalStatus be IteratorBindingInitialization for formals with 37 iteratorRecord and env as arguments. 38 [...] 39 ---*/ 40 41 var callCount = 0; 42 var f; 43 f = ({a, b, ...rest}) => { 44 assert.sameValue(rest.a, undefined); 45 assert.sameValue(rest.b, undefined); 46 47 verifyProperty(rest, "x", { 48 enumerable: true, 49 writable: true, 50 configurable: true, 51 value: 1 52 }); 53 54 verifyProperty(rest, "y", { 55 enumerable: true, 56 writable: true, 57 configurable: true, 58 value: 2 59 }); 60 callCount = callCount + 1; 61 }; 62 63 f({x: 1, y: 2, a: 5, b: 3}); 64 assert.sameValue(callCount, 1, 'arrow function invoked exactly once'); 65 66 reportCompare(0, 0);