dflt-obj-ptrn-prop-id-init-unresolvable.js (1948B)
1 // This file was procedurally generated from the following sources: 2 // - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case 3 // - src/dstr-binding/error/arrow-function-dflt.template 4 /*--- 5 description: Destructuring initializer is an unresolvable reference (arrow function expression (default parameter)) 6 esid: sec-arrow-function-definitions-runtime-semantics-evaluation 7 features: [destructuring-binding, default-parameters] 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 13.3.3.7 Runtime Semantics: KeyedBindingInitialization 40 41 BindingElement : BindingPattern Initializeropt 42 43 [...] 44 3. If Initializer is present and v is undefined, then 45 a. Let defaultValue be the result of evaluating Initializer. 46 b. Let v be GetValue(defaultValue). 47 c. ReturnIfAbrupt(v). 48 49 6.2.3.1 GetValue (V) 50 51 1. ReturnIfAbrupt(V). 52 2. If Type(V) is not Reference, return V. 53 3. Let base be GetBase(V). 54 4. If IsUnresolvableReference(V), throw a ReferenceError exception. 55 ---*/ 56 57 var f = ({ x: y = unresolvableReference } = {}) => {}; 58 59 assert.throws(ReferenceError, function() { 60 f(); 61 }); 62 63 reportCompare(0, 0);