Function getHooks

packages/core/src/render3/after_render/hooks.ts:410–430

(
  callbackOrSpec:
    | VoidFunction
    | {
        earlyRead?: () => unknown;
        write?: (r?: unknown) => unknown;
        mixedReadWrite?: (r?: unknown) => unknown;
        read?: (r?: unknown) => void;
      },
)

}

function getHooks(
  callbackOrSpec:
    | VoidFunction
    | {
        earlyRead?: () => unknown;
        write?: (r?: unknown) => unknown;
        mixedReadWrite?: (r?: unknown) => unknown;
        read?: (r?: unknown) => void;
      },
): AfterRenderHooks {
  if (callbackOrSpec instanceof Function) {
    return [undefined, undefined, /* MixedReadWrite */ callbackOrSpec, undefined];
  } else {
    return [
      callbackOrSpec.earlyRead,
      callbackOrSpec.write,
      callbackOrSpec.mixedReadWrite,
      callbackOrSpec.read,
    ];
  }
}

/**
 * Shared implementation for `afterEveryRender` and `afterNextRender`.