Add test case where IteratorBindingInitialization-bindingelement throws#4922
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Add test case where IteratorBindingInitialization-bindingelement throws#4922
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Hello.
This PR adds a test case where IteratorBindingInitialization of BindingElementList : [BindingElementList , BindingElisionElement] throws in step 1 or 2.
Check 1 : tests the case where IteratorBindingInitialization throws in step 1.
In IteratorBindingInitialization of BindingElementList : [BindingElementList, BindingElisionElement] step 1, IteratorBindingInitialization of BindingElementlist is performed.
In IteratorBindingInitialization of BindingElement : BindingPattern Initializer? v is declared and defined as
undefinedbecause iteratorRecord.[[Done]] is true. After that, BindingInitialization is performed with arguments v and environment.In BindingInitialization of BindingPattern : ArrayBindingPattern step 1, GetIterator(value,
sync) throws TypeError since value isundefined.Check 2 : tests the case where IteratorBindingInitialization throws in step 2.
In IteratorBindingInitialization of BindingElementList: [BindingElementList, BindingElisionElement] step 2, IteratorBindingInitialization of BindingElisionElement is performed. After that, since Elision doesn't exist before
[y], it directly performs IteratorBindingInitialization of BindingElement.