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std/assert/unreachable.ts

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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.import { AssertionError } from "./assertion_error.ts";
/** * Use this to assert unreachable code. * * @example * ```ts * import { unreachable } from "https://deno.land/std@$STD_VERSION/assert/unreachable.ts"; * * unreachable(); // Throws * ``` */export function unreachable(reason?: string): never {  throw new AssertionError(reason ?? "unreachable");}