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// @strict: true
// Repro from #51802
function foo<T>(x: T): T { return x }
class Bar<T> { constructor(public x: T) { } }
// Errors expected on all of the following
const WhatFoo = foo<?>;
const HuhFoo = foo<string?>;
const NopeFoo = foo<?string>;
const ComeOnFoo = foo<?string?>;
type TWhatFoo = typeof foo<?>;
type THuhFoo = typeof foo<string?>;
type TNopeFoo = typeof foo<?string>;
type TComeOnFoo = typeof foo<?string?>;
const WhatBar = Bar<?>;
const HuhBar = Bar<string?>;
const NopeBar = Bar<?string>;
const ComeOnBar = Bar<?string?>;
type TWhatBar = typeof Bar<?>;
type THuhBar = typeof Bar<string?>;
type TNopeBar = typeof Bar<?string>;
type TComeOnBar = typeof Bar<?string?>;
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