obj-ptrn-id-init-unresolvable.js (1968B)
1 // This file was procedurally generated from the following sources: 2 // - src/dstr-binding/obj-ptrn-id-init-unresolvable.case 3 // - src/dstr-binding/error/func-decl.template 4 /*--- 5 description: Destructuring initializer is an unresolvable reference (function declaration) 6 esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject 7 features: [destructuring-binding] 8 flags: [generated] 9 info: | 10 FunctionDeclaration : 11 function BindingIdentifier ( FormalParameters ) { FunctionBody } 12 13 [...] 14 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody, 15 scope, strict). 16 [...] 17 18 9.2.1 [[Call]] ( thisArgument, argumentsList) 19 20 [...] 21 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). 22 [...] 23 24 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) 25 26 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). 27 [...] 28 29 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) 30 31 [...] 32 23. Let iteratorRecord be Record {[[iterator]]: 33 CreateListIterator(argumentsList), [[done]]: false}. 34 24. If hasDuplicates is true, then 35 [...] 36 25. Else, 37 b. Let formalStatus be IteratorBindingInitialization for formals with 38 iteratorRecord and env as arguments. 39 [...] 40 41 13.3.3.7 Runtime Semantics: KeyedBindingInitialization 42 43 SingleNameBinding : BindingIdentifier Initializeropt 44 45 [...] 46 6. If Initializer is present and v is undefined, then 47 a. Let defaultValue be the result of evaluating Initializer. 48 b. Let v be GetValue(defaultValue). 49 c. ReturnIfAbrupt(v). 50 51 6.2.3.1 GetValue (V) 52 53 1. ReturnIfAbrupt(V). 54 2. If Type(V) is not Reference, return V. 55 3. Let base be GetBase(V). 56 4. If IsUnresolvableReference(V), throw a ReferenceError exception. 57 ---*/ 58 59 function f({ x = unresolvableReference }) {} 60 61 assert.throws(ReferenceError, function() { 62 f({}); 63 }); 64 65 reportCompare(0, 0);