Function registerInterceptor

packages/context/src/interceptor.ts:381–430

(
  ctx: Context,
  interceptor: Interceptor | Constructor<Provider<Interceptor>>,
  options: InterceptorBindingOptions = {},
)

 * @param options - Options for the interceptor binding
 */
export function registerInterceptor(
  ctx: Context,
  interceptor: Interceptor | Constructor<Provider<Interceptor>>,
  options: InterceptorBindingOptions = {},
) {
  let {global} = options;
  const {group, source} = options;
  if (group != null || source != null) {
    // If group or source is set, assuming global
    global = global !== false;
  }

  const namespace =
    (options.namespace ?? options.defaultNamespace ?? global)
      ? GLOBAL_INTERCEPTOR_NAMESPACE
      : LOCAL_INTERCEPTOR_NAMESPACE;

  let binding: Binding<Interceptor>;
  if (isProviderClass(interceptor)) {
    binding = createBindingFromClass(interceptor, {
      defaultNamespace: namespace,
      ...options,
    });
    if (binding.tagMap[ContextTags.GLOBAL_INTERCEPTOR]) {
      global = true;
    }
    ctx.add(binding);
  } else {
    let key = options.key;
    if (!key) {
      const name = options.name ?? interceptor.name;
      if (!name) {
        key = BindingKey.generate<Interceptor>(namespace).key;
      } else {
        key = `${namespace}.${name}`;
      }
    }
    binding = ctx
      .bind(key as BindingAddress<Interceptor>)
      .to(interceptor as Interceptor);
  }
  if (global) {
    binding.apply(asGlobalInterceptor(group));
    if (source) {
      binding.tag({[ContextTags.GLOBAL_INTERCEPTOR_SOURCE]: source});
    }
  }

  return binding;
}