// This file was procedurally generated from the following sources: // - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case // - src/dstr-binding/error/cls-decl-meth-dflt.template /*--- description: Error forwarding when IteratorValue returns an abrupt completion (class expression method (default parameter)) esid: sec-runtime-semantics-bindingclassdeclarationevaluation features: [Symbol.iterator, destructuring-binding, default-parameters] flags: [generated] info: | ClassDeclaration : class BindingIdentifier ClassTail 1. Let className be StringValue of BindingIdentifier. 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with argument className. [...] 14.5.14 Runtime Semantics: ClassDefinitionEvaluation 21. For each ClassElement m in order from methods a. If IsStatic of m is false, then i. Let status be the result of performing PropertyDefinitionEvaluation for m with arguments proto and false. [...] 14.3.8 Runtime Semantics: DefineMethod MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody } [...] 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody, scope, strict). If functionPrototype was passed as a parameter then pass its value as the functionPrototype optional argument of FunctionCreate. [...] 9.2.1 [[Call]] ( thisArgument, argumentsList) [...] 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). [...] 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). [...] 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) [...] 23. Let iteratorRecord be Record {[[iterator]]: CreateListIterator(argumentsList), [[done]]: false}. 24. If hasDuplicates is true, then [...] 25. Else, b. Let formalStatus be IteratorBindingInitialization for formals with iteratorRecord and env as arguments. [...] 13.3.3.6 Runtime Semantics: IteratorBindingInitialization BindingRestElement : ... BindingIdentifier 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier, environment). 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat, [...] c. Let nextValue be IteratorValue(next). d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to true. e. ReturnIfAbrupt(nextValue). ---*/ var poisonedValue = Object.defineProperty({}, 'value', { get: function() { throw new Test262Error(); } }); var iter = {}; iter[Symbol.iterator] = function() { return { next: function() { return poisonedValue; } }; }; class C { method([...x] = iter) {} }; var c = new C(); assert.throws(Test262Error, function() { c.method(); }); reportCompare(0, 0);