// ==========================================================================
// This software is subject to the provisions of the Zope Public License,
// Version 2.0 (ZPL).  A copy of the ZPL should accompany this distribution.
// THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
// WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
// FOR A PARTICULAR PURPOSE.
// ==========================================================================

using System;
using System.Collections;
using System.Reflection;
using System.Security.Permissions;

namespace Python.Runtime {

    //========================================================================
    // Bundles the information required to support an indexer property.
    //========================================================================

    internal class Indexer {

	public MethodBinder GetterBinder;
	public MethodBinder SetterBinder;

	public Indexer() {
	    GetterBinder = new MethodBinder();
	    SetterBinder = new MethodBinder();
	}


	public bool CanGet {
	    get { 
		return GetterBinder.Count > 0; 
	    }
	}

	public bool CanSet {
	    get { 
		return SetterBinder.Count > 0; 
	    }
	}


	public void AddProperty(PropertyInfo pi) {
	    MethodInfo getter = pi.GetGetMethod(true);
	    MethodInfo setter = pi.GetSetMethod(true);
	    if (getter != null) {
		GetterBinder.AddMethod(getter);
	    }
	    if (setter != null) {
		SetterBinder.AddMethod(setter);
	    }
	}

	internal IntPtr GetItem(IntPtr inst, IntPtr args) {
	    return GetterBinder.Invoke(inst, args, IntPtr.Zero);
	}


	internal void SetItem(IntPtr inst, IntPtr args) {
	    SetterBinder.Invoke(inst, args, IntPtr.Zero);
	}

    }


}