namespace Ghost.Editor.Core.AssetHandle; [AttributeUsage(AttributeTargets.Method)] public class AssetOpenHandlerAttribute : Attribute { public string[] Extensions { get; } public AssetOpenHandlerAttribute(params string[] extensions) { Extensions = extensions.Select(e => e.StartsWith('.') ? e.ToLowerInvariant() : '.' + e.ToLowerInvariant()).ToArray(); } }