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SortedCollection.cs
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81 lines (67 loc) · 2.67 KB
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using System;
using System.Collections;
using System.Collections.Generic;
using System.Runtime.CompilerServices;
namespace UnityEventBus.Utils
{
internal class SortedCollection<T> : ICollection<T>
{
public int Count => m_Collection.Count;
public bool IsReadOnly => false;
public List<T> m_Collection;
private IComparer<T> m_Comparer;
// =======================================================================
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public SortedCollection(Comparison<T> compare)
{
m_Collection = new List<T>();
m_Comparer = Comparer<T>.Create(compare);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public SortedCollection(IComparer<T> comparer)
{
m_Collection = new List<T>();
m_Comparer = comparer;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public SortedCollection(IComparer<T> comparer, int size)
{
m_Collection = new List<T>(size);
m_Comparer = comparer;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public IEnumerator<T> GetEnumerator() => m_Collection.GetEnumerator();
[MethodImpl(MethodImplOptions.AggressiveInlining)]
IEnumerator IEnumerable.GetEnumerator() => m_Collection.GetEnumerator();
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void Add(T item)
{
var index = m_Collection.FindIndex(n => m_Comparer.Compare(n, item) > 0);
if (index != -1)
m_Collection.Insert(index, item);
else
m_Collection.Add(item);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void Clear() => m_Collection.Clear();
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public bool Contains(T item) => m_Collection.Contains(item);
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void CopyTo(T[] array, int arrayIndex) => m_Collection.CopyTo(array, arrayIndex);
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public bool Remove(T item) => m_Collection.Remove(item);
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public bool Extract(in T item, out T extracted)
{
var index = m_Collection.IndexOf(item);
if (index == -1)
{
extracted = default;
return false;
}
extracted = m_Collection[index];
m_Collection.RemoveAt(index);
return true;
}
}
}