sebastienros.jint/Jint/Native/Error/ErrorConstructor.cs

using Jint.Native.Function;
using Jint.Native.Object;
using Jint.Runtime;

namespace Jint.Native.Error
{
    public sealed class ErrorConstructor : FunctionInstance, IConstructor
    {
        public ErrorConstructor(Engine engine) : base(engine, null, null, false)
        {
        }

        public static ErrorConstructor CreateErrorConstructor(Engine engine, string name)
        {
            var obj = new ErrorConstructor(engine);
            obj.Extensible = true;

            // The value of the [[Prototype]] internal property of the Error constructor is the Function prototype object 
            obj.Prototype = engine.Function.PrototypeObject;
            obj.PrototypeObject = ErrorPrototype.CreatePrototypeObject(engine, obj, name);

            obj.FastAddProperty("length", 1, false, false, false);

            // The initial value of Date.prototype is the Boolean prototype object
            obj.FastAddProperty("prototype", obj.PrototypeObject, false, false, false);

            return obj;
        }

        public override object Call(object thisObject, object[] arguments)
        {
            return Construct(arguments);
        }

        public ObjectInstance Construct(object[] arguments)
        {
            var instance = new ErrorInstance(Engine, null);
            instance.Prototype = PrototypeObject;
            instance.Extensible = true;

            if (arguments.Length > 0 && arguments[0] != Undefined.Instance)
            {
                instance.Message = TypeConverter.ToString(arguments[0]);
            }

            return instance;
        }

        public ObjectInstance PrototypeObject { get; private set; }


    }
}