Function assertNotInstanceOf

assert/not_instance_of.ts:23–33

(
  actual: A,
  // deno-lint-ignore no-explicit-any
  unexpectedType: abstract new (...args: any[]) => T,
  msg?: string,
)

 * @param msg The optional message to display if the assertion fails.
 */
export function assertNotInstanceOf<A, T>(
  actual: A,
  // deno-lint-ignore no-explicit-any
  unexpectedType: abstract new (...args: any[]) => T,
  msg?: string,
): asserts actual is Exclude<A, T> {
  const msgSuffix = msg ? `: ${msg}` : ".";
  msg =
    `Expected object to not be an instance of "${typeof unexpectedType}"${msgSuffix}`;
  assertFalse(actual instanceof unexpectedType, msg);
}