36 lines
1.4 KiB
C#
36 lines
1.4 KiB
C#
// In 2021.1 this is part of Unity
|
|
#if !UNITY_2021_1_OR_NEWER
|
|
using System.Collections.Generic;
|
|
|
|
namespace UnityEngine.Pool
|
|
{
|
|
internal class CollectionPool<TCollection, TItem> where TCollection : class, ICollection<TItem>, new()
|
|
{
|
|
internal static readonly ObjectPool<TCollection> s_Pool = new ObjectPool<TCollection>(() => new TCollection(), null, l => l.Clear());
|
|
|
|
/// <summary>
|
|
/// Get a new instance from the Pool.
|
|
/// </summary>
|
|
/// <returns></returns>
|
|
public static TCollection Get() => s_Pool.Get();
|
|
|
|
/// <summary>
|
|
/// Get a new instance and a PooledObject. The PooledObject will automatically return the instance when it is Disposed.
|
|
/// </summary>
|
|
/// <param name="value">Output new instance.</param>
|
|
/// <returns>A new PooledObject.</returns>
|
|
public static PooledObject<TCollection> Get(out TCollection value) => s_Pool.Get(out value);
|
|
|
|
/// <summary>
|
|
/// Release an object to the pool.
|
|
/// </summary>
|
|
/// <param name="toRelease">instance to release.</param>
|
|
public static void Release(TCollection toRelease) => s_Pool.Release(toRelease);
|
|
}
|
|
|
|
internal class ListPool<T> : CollectionPool<List<T>, T> {}
|
|
internal class HashSetPool<T> : CollectionPool<HashSet<T>, T> {}
|
|
internal class DictionaryPool<TKey, TValue> : CollectionPool<Dictionary<TKey, TValue>, KeyValuePair<TKey, TValue>> {}
|
|
}
|
|
#endif
|