AssetBundle hooks failure in IL2CPP

[krulci]

Hooks in ResourceAndAssetHooks related with AssetBundle do not work.

• extern methods do not work in IL2CPP
  • LoadFromFile_Internal
  • LoadAssetWithSubAssets_Internal
  • etc
• LoadAll is obsolete Below is from 2021.3.20f1

  [EditorBrowsable(1)]
  [Obsolete("Method LoadAll has been deprecated. Script updater cannot update it as the loading behaviour has changed. Please use LoadAllAssets instead and check the documentation for details.", true)]
  public Object[] LoadAll()
  {
  return null;
  }

  LoadAllAssets uses LoadAssetWithSubAssets_Internal, but as stated previously, none of these extern *_Internal APIs work.

• Since none of the internal APIs work, APIs with multiple overloads such as LoadFromFile needs hooks for each APIs.

By the way:

        public Object[] LoadAllAssets()
        {
            return this.LoadAllAssets(typeof(Object));
        }

        public T[] LoadAllAssets<T>() where T : Object
        {
            return AssetBundle.ConvertObjects<T>(this.LoadAllAssets(typeof(T)));
        }

        public Object[] LoadAllAssets(Type type)
        {
            bool flag = type == null;
            if (flag)
            {
                throw new NullReferenceException("The input type cannot be null.");
            }
            return this.LoadAssetWithSubAssets_Internal("", type);
        }

This is from the managed unity-libs souce code Not sure why hooking public Object[] LoadAllAssets(Type type) does not work, but hooking public Object[] LoadAllAssets() works.

[krulci]

Not sure if there are better technique to handle overload. I simply did:

AssetBundle_LoadFromFile3_Hook
AssetBundle_LoadFromFile2_Hook
AssetBundle_LoadFromFile1_Hook