using System;
using BLToolkit.TypeBuilder.Builders;

namespace BLToolkit.Aspects
{
    /// <summary>
    /// http://www.bltoolkit.net/Doc/Aspects/index.htm
    /// </summary>
    [AttributeUsage(AttributeTargets.Method)]
    public sealed class OverloadAttribute : AbstractTypeBuilderAttribute
    {
        private readonly string _overloadedMethodName;
        private readonly Type[] _parameterTypes;

        public OverloadAttribute()
        {
        }

        public OverloadAttribute(string overloadedMethodName): this(overloadedMethodName, null)
        {
        }

        public OverloadAttribute(params Type[] parameterTypes): this(null, parameterTypes)
        {
        }

        public OverloadAttribute(string overloadedMethodName, params Type[] parameterTypes)
        {
            _overloadedMethodName = overloadedMethodName;
            _parameterTypes       = parameterTypes;
        }

        public override IAbstractTypeBuilder TypeBuilder
        {
            get { return new Builders.OverloadAspectBuilder(_overloadedMethodName, _parameterTypes); }
        }
    }
}