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tests/cases/conformance/es6/destructuring/iterableArrayPattern19.ts(2,5): error TS2345: Argument of type 'FooArrayIterator' is not assignable to parameter of type 'Bar[][]'.
Property 'length' is missing in type 'FooArrayIterator'.
==== tests/cases/conformance/es6/destructuring/iterableArrayPattern19.ts (1 errors) ====
function fun([[a], b]: Bar[][]) { }
fun(new FooArrayIterator);
~~~~~~~~~~~~~~~~~~~~
!!! error TS2345: Argument of type 'FooArrayIterator' is not assignable to parameter of type 'Bar[][]'.
!!! error TS2345: Property 'length' is missing in type 'FooArrayIterator'.
class Bar { x }
class Foo extends Bar { y }
class FooArrayIterator {
next() {
return {
value: [new Foo],
done: false
};
}
[Symbol.iterator]() {
return this;
}
}
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