Function forEachSingleProvider

packages/core/src/di/r3_injector.ts:725–738

(
  providers: Array<Provider | EnvironmentProviders>,
  fn: (provider: SingleProvider) => void,
)

}

function forEachSingleProvider(
  providers: Array<Provider | EnvironmentProviders>,
  fn: (provider: SingleProvider) => void,
): void {
  for (const provider of providers) {
    if (Array.isArray(provider)) {
      forEachSingleProvider(provider, fn);
    } else if (provider && isEnvironmentProviders(provider)) {
      forEachSingleProvider(provider.ɵproviders, fn);
    } else {
      fn(provider as SingleProvider);
    }
  }
}