using EC.Helper.RabbitFunc.Runtime;

namespace EC.Helper.RabbitFunc.Expressions;

public class ConstantExpression : Expression
{
    internal ConstantExpression(object value)
        : base(ExpressionType.Constant)
    {
        Value = value;
    }

    public object Value { get; }

    public override Type Type => Value?.GetType();

    public override object Eval(RuntimeContext context)
    {
        if (context == null)
            throw new ArgumentNullException(nameof(context));

        return Value;
    }

    public override string ToString()
    {
        return Value.ToString();
    }
}