tests/cases/conformance/es6/destructuring/iterableArrayPattern17.ts(1,17): error TS2501: A rest element cannot contain a binding pattern. tests/cases/conformance/es6/destructuring/iterableArrayPattern17.ts(2,5): error TS2345: Argument of type 'FooIterator' is not assignable to parameter of type 'Bar'. Property 'x' is missing in type 'FooIterator'. ==== tests/cases/conformance/es6/destructuring/iterableArrayPattern17.ts (2 errors) ==== function fun(...[a, b]: Bar[]) { } ~~~~~~ !!! error TS2501: A rest element cannot contain a binding pattern. fun(new FooIterator); ~~~~~~~~~~~~~~~ !!! error TS2345: Argument of type 'FooIterator' is not assignable to parameter of type 'Bar'. !!! error TS2345: Property 'x' is missing in type 'FooIterator'. class Bar { x } class Foo extends Bar { y } class FooIterator { next() { return { value: new Foo, done: false }; } [Symbol.iterator]() { return this; } }