dflt-obj-ptrn-prop-ary-value-null.js (1786B)
1 // This file was procedurally generated from the following sources: 2 // - src/dstr-binding/obj-ptrn-prop-ary-value-null.case 3 // - src/dstr-binding/error/func-decl-dflt.template 4 /*--- 5 description: Object binding pattern with "nested" array binding pattern taking the `null` value (function declaration (default parameter)) 6 esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject 7 features: [destructuring-binding, default-parameters] 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 [...] 44 3. If Initializer is present and v is undefined, then 45 [...] 46 4. Return the result of performing BindingInitialization for BindingPattern 47 passing v and environment as arguments. 48 ---*/ 49 50 function f({ w: [x, y, z] = [4, 5, 6] } = { w: null }) {} 51 52 assert.throws(TypeError, function() { 53 f(); 54 }); 55 56 reportCompare(0, 0);