ary-ptrn-rest-obj-id.js (1836B)
1 // This file was procedurally generated from the following sources: 2 // - src/dstr-binding/ary-ptrn-rest-obj-id.case 3 // - src/dstr-binding/default/arrow-function.template 4 /*--- 5 description: Rest element containing an object binding pattern (arrow function expression) 6 esid: sec-arrow-function-definitions-runtime-semantics-evaluation 7 features: [destructuring-binding] 8 flags: [generated] 9 info: | 10 ArrowFunction : ArrowParameters => ConciseBody 11 12 [...] 13 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict). 14 [...] 15 16 9.2.1 [[Call]] ( thisArgument, argumentsList) 17 18 [...] 19 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). 20 [...] 21 22 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) 23 24 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). 25 [...] 26 27 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) 28 29 [...] 30 23. Let iteratorRecord be Record {[[iterator]]: 31 CreateListIterator(argumentsList), [[done]]: false}. 32 24. If hasDuplicates is true, then 33 [...] 34 25. Else, 35 b. Let formalStatus be IteratorBindingInitialization for formals with 36 iteratorRecord and env as arguments. 37 [...] 38 39 13.3.3.6 Runtime Semantics: IteratorBindingInitialization 40 41 BindingRestElement : ... BindingPattern 42 43 1. Let A be ArrayCreate(0). 44 [...] 45 3. Repeat 46 [...] 47 b. If iteratorRecord.[[done]] is true, then 48 i. Return the result of performing BindingInitialization of 49 BindingPattern with A and environment as the arguments. 50 [...] 51 ---*/ 52 53 var callCount = 0; 54 var f; 55 f = ([...{ length }]) => { 56 assert.sameValue(length, 3); 57 callCount = callCount + 1; 58 }; 59 60 f([1, 2, 3]); 61 assert.sameValue(callCount, 1, 'arrow function invoked exactly once'); 62 63 reportCompare(0, 0);