ary-name-iter-val.js (2240B)
1 // This file was procedurally generated from the following sources: 2 // - src/dstr-binding/ary-name-iter-val.case 3 // - src/dstr-binding/default/arrow-function.template 4 /*--- 5 description: SingleNameBinding with normal value iteration (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 SingleNameBinding : BindingIdentifier Initializeropt 42 43 [...] 44 4. If iteratorRecord.[[done]] is false, then 45 a. Let next be IteratorStep(iteratorRecord.[[iterator]]). 46 b. If next is an abrupt completion, set iteratorRecord.[[done]] to true. 47 c. ReturnIfAbrupt(next). 48 d. If next is false, set iteratorRecord.[[done]] to true. 49 e. Else, 50 [...] 51 i. Let v be IteratorValue(next). 52 ii. If v is an abrupt completion, set 53 iteratorRecord.[[done]] to true. 54 iii. ReturnIfAbrupt(v). 55 5. If iteratorRecord.[[done]] is true, let v be undefined. 56 [...] 57 8. Return InitializeReferencedBinding(lhs, v). 58 ---*/ 59 60 var callCount = 0; 61 var f; 62 f = ([x, y, z]) => { 63 assert.sameValue(x, 1); 64 assert.sameValue(y, 2); 65 assert.sameValue(z, 3); 66 callCount = callCount + 1; 67 }; 68 69 f([1, 2, 3]); 70 assert.sameValue(callCount, 1, 'arrow function invoked exactly once'); 71 72 reportCompare(0, 0);