NewArrayBoundsInstruction.cs

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namespace System.Linq.Expressions.Interpreter;
 
internal sealed class NewArrayBoundsInstruction : Instruction
{
    private readonly Type _elementType;
 
    private readonly int _rank;
 
    public override int ConsumedStack => _rank;
 
    public override int ProducedStack => 1;
 
    public override string InstructionName => "NewArrayBounds";
 
    internal NewArrayBoundsInstruction(Type elementType, int rank)
    {
        _elementType = elementType;
        _rank = rank;
    }
 
    public override int Run(InterpretedFrame frame)
    {
        int[] array = new int[_rank];
        for (int num = _rank - 1; num >= 0; num--)
        {
            int num2 = ConvertHelper.ToInt32NoNull(frame.Pop());
            if (num2 < 0)
            {
                throw new OverflowException();
            }
            array[num] = num2;
        }
        Array value = Array.CreateInstance(_elementType, array);
        frame.Push(value);
        return 1;
    }
}