//-----------------------------------------------------------------------------
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------------------------
 
namespace System.Activities
{
    using System;
    using System.Activities.Validation;
    using System.Collections.Generic;
    using System.Diagnostics.CodeAnalysis;
    using System.Runtime;
 
    // DelegateArgument is the XAML-based construct. RuntimeDelegateArgument is a binding construct to store the value
    [Fx.Tag.XamlVisible(false)]
    public sealed class RuntimeDelegateArgument
    {
        public RuntimeDelegateArgument(string name, Type type, ArgumentDirection direction, DelegateArgument boundArgument)
        {
            if (string.IsNullOrEmpty(name))
            {
                throw FxTrace.Exception.ArgumentNullOrEmpty("name");
            }
 
            if (type == null)
            {
                throw FxTrace.Exception.ArgumentNull("type");
            }
 
            ArgumentDirectionHelper.Validate(direction, "direction");
 
            if (boundArgument != null)
            {
                // Validations that the bound argument matches are done
                // in CacheMetadata for ActivityDelegate.
 
                boundArgument.Bind(this);
            }
 
            this.Name = name;
            this.Type = type;
            this.Direction = direction;
            this.BoundArgument = boundArgument;
        }
 
        public string Name
        {
            get;
            private set;
        }
 
        [SuppressMessage(FxCop.Category.Naming, FxCop.Rule.PropertyNamesShouldNotMatchGetMethods,
            Justification = "Workflow normalizes on Type for Type properties")]
        public Type Type
        {
            get;
            private set;
        }
 
        public ArgumentDirection Direction
        {
            get;
            private set;
        }
 
        public DelegateArgument BoundArgument
        {
            get;
            private set;
        }
    }
}