ArrayByRefUpdater.cs

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namespace System.Linq.Expressions.Interpreter;
 
internal sealed class ArrayByRefUpdater : ByRefUpdater
{
    private readonly LocalDefinition _array;
 
    private readonly LocalDefinition _index;
 
    public ArrayByRefUpdater(LocalDefinition array, LocalDefinition index, int argumentIndex)
        : base(argumentIndex)
    {
        _array = array;
        _index = index;
    }
 
    public override void Update(InterpretedFrame frame, object value)
    {
        object obj = frame.Data[_index.Index];
        ((Array)frame.Data[_array.Index]).SetValue(value, (int)obj);
    }
 
    public override void UndefineTemps(InstructionList instructions, LocalVariables locals)
    {
        locals.UndefineLocal(_array, instructions.Count);
        locals.UndefineLocal(_index, instructions.Count);
    }
}