IEnumerableUnpacker 📦

IEnumerableUnpacker is a C# library that provides a quick and efficient way to unpack IEnumerable<T> to 1D and 2D arrays of T's members. It leverages parallel processing and optimized memory copying techniques to achieve high-performance array unpacking. 🚀

Key Features

• Unpack IEnumerable<T> to 1D and 2D arrays of T's members
• Utilize parallel processing for individual members ⚡
• Identify blittable types and use unaligned memory copy for optimized performance
• Support for generic types
• Flexible attribute-based configuration for specifying output parameter names

Installation

You can install IEnumerableUnpacker via NuGet Package Manager:

Install-Package IEnumerableUnpacker

Usage

Here's an example of how to use IEnumerableUnpacker:

//YOUR CODE:
[Unpackable]
public class UnpackMe<Titem, Titem2, UselessGeneric>
{
    [Unpack("MyItegersOut")]
    public int[] myIntegers;

    [Unpack("MyIntegerOut")]
    public int myInteger;

    [Unpack("MyFloatsOut")]
    public float[] myFloats;

    [Unpack("MyGenericOut")]
    public Titem[] myGeneric;

    [Unpack("MyGeneric2Out")]
    public Titem2 myGeneric2;
}
//GENERATED CODE:
public static unsafe void UnpackUnpackMe<Titem, Titem2, UselessGeneric>(this IEnumerable<UnpackMe<Titem, Titem2, UselessGeneric>> source, out int[,] MyItegersOut, out int[] MyIntegerOut, out float[,] MyFloatsOut, out Titem[,] MyGenericOut, out Titem2[] MyGeneric2Out)
{
    // Unpacking logic...
}

In this example:

• The Unpackable attribute is used to mark the class for unpacking.
• The Unpack attribute is used to specify the output parameter names for the unpacked arrays.
• Generic types are supported and can be used as needed.
• Parameters not labeled with the Unpack attribute will not be unpacked.

For more detailed benchmarks and comparisons, please visit the project repository. 📊

Benchmarks

Benchmarks and template for generated source is aviable in Benchmark repository

Contributing

Contributions are welcome! If you find any issues or have suggestions for improvements, please open an issue or submit a pull request on the GitHub repository. 😊

License

IEnumerableUnpacker is licensed under the MIT License.

Note

I've decided to use 2D arrays because that's what I use with TorchSharp. Unpacking to flat types might be faster, so feel free to reach out to me if it's required! 📫