File: parseInvalidNonNullableTypes.ts

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node-typescript 5.0.4%2Bds1-2
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// @strict: true

function f1(a: string): a is string! {
    return true;
}

function f2(a: string): a is !string {
    return true;
}

function f3(a: string!) {}
function f4(a: number!) {}

function f5(a: !string) {}
function f6(a: !number) {}

function f7(): string! {}
function f8(): !string {}

const a = 1 as any!;
const b: number! = 1;

const c = 1 as !any;
const d: !number = 1;