ArrayShapeEncoder.cs

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using System.Collections.Immutable;
 
namespace System.Reflection.Metadata.Ecma335;
 
public readonly struct ArrayShapeEncoder
{
    public BlobBuilder Builder { get; }
 
    public ArrayShapeEncoder(BlobBuilder builder)
    {
        Builder = builder;
    }
 
    public void Shape(int rank, ImmutableArray<int> sizes, ImmutableArray<int> lowerBounds)
    {
        if ((uint)(rank - 1) > 65534u)
        {
            Throw.ArgumentOutOfRange("rank");
        }
        if (sizes.IsDefault)
        {
            Throw.ArgumentNull("sizes");
        }
        Builder.WriteCompressedInteger(rank);
        if (sizes.Length > rank)
        {
            Throw.ArgumentOutOfRange("rank");
        }
        Builder.WriteCompressedInteger(sizes.Length);
        ImmutableArray<int>.Enumerator enumerator = sizes.GetEnumerator();
        while (enumerator.MoveNext())
        {
            int current = enumerator.Current;
            Builder.WriteCompressedInteger(current);
        }
        if (lowerBounds.IsDefault)
        {
            Builder.WriteCompressedInteger(rank);
            for (int i = 0; i < rank; i++)
            {
                Builder.WriteCompressedSignedInteger(0);
            }
            return;
        }
        if (lowerBounds.Length > rank)
        {
            Throw.ArgumentOutOfRange("rank");
        }
        Builder.WriteCompressedInteger(lowerBounds.Length);
        ImmutableArray<int>.Enumerator enumerator2 = lowerBounds.GetEnumerator();
        while (enumerator2.MoveNext())
        {
            int current2 = enumerator2.Current;
            Builder.WriteCompressedSignedInteger(current2);
        }
    }
}