Instruction.cs

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using System.Collections.Generic;
 
namespace System.Linq.Expressions.Interpreter;
 
internal abstract class Instruction
{
    public virtual int ConsumedStack => 0;
 
    public virtual int ProducedStack => 0;
 
    public virtual int ConsumedContinuations => 0;
 
    public virtual int ProducedContinuations => 0;
 
    public int StackBalance => ProducedStack - ConsumedStack;
 
    public int ContinuationsBalance => ProducedContinuations - ConsumedContinuations;
 
    public abstract string InstructionName { get; }
 
    public abstract int Run(InterpretedFrame frame);
 
    public override string ToString()
    {
        return InstructionName + "()";
    }
 
    public virtual string ToDebugString(int instructionIndex, object cookie, Func<int, int> labelIndexer, IReadOnlyList<object> objects)
    {
        return ToString();
    }
 
    protected static void NullCheck(object o)
    {
        if (o == null)
        {
            o.GetType();
        }
    }
}