using System;

//using System.Dynamic;

//Not using it here, but @marcgravell's stuff is too good not to include

#if !SILVERLIGHT && !MONOTOUCH && !XBOX

namespace ServiceStack.Text.FastMember

{

/// <summary>

/// Represents an individual object, allowing access to members by-name

/// </summary>

public abstract class ObjectAccessor

{

/// <summary>

/// Get or Set the value of a named member for the underlying object

/// </summary>

public abstract object this[string name] { get; set; }

/// <summary>

/// The object represented by this instance

/// </summary>

public abstract object Target { get; }

/// <summary>

/// Use the target types definition of equality

/// </summary>

public override bool Equals(object obj)

{

return Target.Equals(obj);

}

/// <summary>

/// Obtain the hash of the target object

/// </summary>

public override int GetHashCode()

{

return Target.GetHashCode();

}

/// <summary>

/// Use the target's definition of a string representation

/// </summary>

public override string ToString()

{

return Target.ToString();

}

/// <summary>

/// Wraps an individual object, allowing by-name access to that instance

/// </summary>

public static ObjectAccessor Create(object target)

{

if (target == null) throw new ArgumentNullException("target");

//IDynamicMetaObjectProvider dlr = target as IDynamicMetaObjectProvider;

//if (dlr != null) return new DynamicWrapper(dlr); // use the DLR

return new TypeAccessorWrapper(target, TypeAccessor.Create(target.GetType()));

}

sealed class TypeAccessorWrapper : ObjectAccessor

{

private readonly object target;

private readonly TypeAccessor accessor;

public TypeAccessorWrapper(object target, TypeAccessor accessor)

{

this.target = target;

this.accessor = accessor;

}

public override object this[string name]

{

get { return accessor[target, name.ToUpperInvariant()]; }

set { accessor[target, name.ToUpperInvariant()] = value; }

}

public override object Target

{

get { return target; }

}

}

//sealed class DynamicWrapper : ObjectAccessor

//{

// private readonly IDynamicMetaObjectProvider target;

// public override object Target

// {

// get { return target; }

// }

// public DynamicWrapper(IDynamicMetaObjectProvider target)

// {

// this.target = target;

// }

// public override object this[string name]

// {

// get { return CallSiteCache.GetValue(name, target); }

// set { CallSiteCache.SetValue(name, target, value); }

// }

//}

}

}

#endif