obj-ptrn-id-init-fn-name-arrow.js (1987B)
1 // This file was procedurally generated from the following sources: 2 // - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case 3 // - src/dstr-binding/default/func-expr.template 4 /*--- 5 description: SingleNameBinding assigns `name` to arrow functions (function expression) 6 esid: sec-function-definitions-runtime-semantics-evaluation 7 features: [destructuring-binding] 8 flags: [generated] 9 info: | 10 FunctionExpression : function ( FormalParameters ) { FunctionBody } 11 12 [...] 13 3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody, 14 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 13.3.3.7 Runtime Semantics: KeyedBindingInitialization 41 42 SingleNameBinding : BindingIdentifier Initializeropt 43 44 [...] 45 6. If Initializer is present and v is undefined, then 46 [...] 47 d. If IsAnonymousFunctionDefinition(Initializer) is true, then 48 i. Let hasNameProperty be HasOwnProperty(v, "name"). 49 ii. ReturnIfAbrupt(hasNameProperty). 50 iii. If hasNameProperty is false, perform SetFunctionName(v, 51 bindingId). 52 ---*/ 53 54 var callCount = 0; 55 var f; 56 f = function({ arrow = () => {} }) { 57 assert.sameValue(arrow.name, 'arrow'); 58 callCount = callCount + 1; 59 }; 60 61 f({}); 62 assert.sameValue(callCount, 1, 'function invoked exactly once'); 63 64 reportCompare(0, 0);