Function assertInjectImplementationNotEqual

packages/core/src/di/inject_switch.ts:76–81

(
  fn: <T>(token: ProviderToken<T>, flags?: InternalInjectFlags) => T | null,
)

 * @param fn Function which it should not equal to
 */
export function assertInjectImplementationNotEqual(
  fn: <T>(token: ProviderToken<T>, flags?: InternalInjectFlags) => T | null,
) {
  ngDevMode &&
    assertNotEqual(_injectImplementation, fn, 'Calling ɵɵinject would cause infinite recursion');
}