| // This file was procedurally generated from the following sources: |
| // - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case |
| // - src/dstr-binding/error/meth-dflt.template |
| /*--- |
| description: Error forwarding when IteratorValue returns an abrupt completion (method (default parameter)) |
| esid: sec-runtime-semantics-definemethod |
| features: [Symbol.iterator, destructuring-binding, default-parameters] |
| flags: [generated] |
| info: | |
| 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; |
| } |
| }; |
| }; |
| |
| var obj = { |
| method([...x] = iter) {} |
| }; |
| |
| assert.throws(Test262Error, function() { |
| obj.method(); |
| }); |