Stack abstraction that also supports the IList interface
/*
[The "BSD licence"]
Copyright (c) 2005-2007 Kunle Odutola
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derived from this software without specific prior WRITTEN permission.
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submitted for inclusion in this work to the copyright owner or licensor
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*/
namespace Antlr.Runtime.Collections
{
using System;
using ArrayList = System.Collections.ArrayList;
/// <summary>
/// Stack abstraction that also supports the IList interface
/// </summary>
public class StackList : ArrayList
{
public StackList() : base()
{
}
/// <summary>
/// Adds an element to the top of the stack list.
/// </summary>
public void Push(object item)
{
Add(item);
}
/// <summary>
/// Removes the element at the top of the stack list and returns it.
/// </summary>
/// <returns>The element at the top of the stack.</returns>
public object Pop()
{
object poppedItem = this[this.Count - 1];
RemoveAt(this.Count - 1);
return poppedItem;
}
/// <summary>
/// Removes the element at the top of the stack list without removing it.
/// </summary>
/// <returns>The element at the top of the stack.</returns>
public object Peek()
{
return this[this.Count - 1];
}
}
}
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