Files
stgsharp/StgSharp.Common/Collections/CapacityFixedBag.cs
T

93 lines
2.9 KiB
C#

//-----------------------------------------------------------------------
// -----------------------------------------------------------------------
// file="CapacityFixedBag"
// Project: StgSharp
// AuthorGroup: Nitload
// Copyright (c) Nitload. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//
// -----------------------------------------------------------------------
// -----------------------------------------------------------------------
using System;
using System.Collections;
using System.Collections.Generic;
using System.Reflection;
namespace StgSharp.Collections
{
public sealed class CapacityFixedBag<T> : IEnumerable<T>
{
private readonly T[] _buffer;
public CapacityFixedBag(int capacity)
{
_buffer = new T[capacity];
}
public int Count { get; set; }
public int Capacity => _buffer.Length;
public void Add(T item)
{
if (Count >= _buffer.Length) {
throw new InvalidOperationException("Bag capacity exceeded.");
}
_buffer[Count] = item;
Count++;
}
public IEnumerator<T> GetEnumerator()
{
for (int i = 0; i < Count; i++) {
yield return _buffer[i];
}
}
public void Remove(T item)
{
int index = Array.IndexOf(_buffer, item, 0, Count);
if (index >= 0)
{
_buffer[index] = _buffer[Count - 1];
_buffer[Count - 1] = default!;
Count--;
}
}
public void RemoveAt(int index)
{
if (index >= 0)
{
_buffer[index] = _buffer[Count - 1];
_buffer[Count - 1] = default!;
Count--;
}
}
IEnumerator IEnumerable.GetEnumerator()
{
return GetEnumerator();
}
}
}