Improve AddRange for ICollection
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Marek Lemańczyk committed
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@@ -0,0 +1,387 @@
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using System.Collections;
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using System.Linq.Expressions;
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using System.Reflection;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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using System.Numerics;
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using Recyclable.Collections.Pools;
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namespace Recyclable.Collections
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{
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internal static class zRecyclableStackAddRange
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{
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private static class AddRangeHelper<T>
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{
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private static readonly Action<RecyclableStack<T>, object>? _dictionaryAdder;
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private static readonly Action<RecyclableStack<T>, object>? _sortedListAdder;
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private static readonly Type? _dictionaryType;
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private static readonly Type? _sortedListType;
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static AddRangeHelper()
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{
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Type elementType = typeof(T);
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if (elementType.IsGenericType && elementType.GetGenericTypeDefinition() == typeof(KeyValuePair<,>))
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{
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Type[] args = elementType.GetGenericArguments();
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_dictionaryType = typeof(RecyclableDictionary<,>).MakeGenericType(args);
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MethodInfo? method = typeof(zRecyclableStackAddRange).GetMethod(
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nameof(AddRange),
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BindingFlags.NonPublic | BindingFlags.Static,
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binder: null,
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types: new[] { typeof(RecyclableStack<>).MakeGenericType(elementType), _dictionaryType },
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modifiers: null);
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if (method != null)
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{
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var stackParam = Expression.Parameter(typeof(RecyclableStack<T>));
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var objParam = Expression.Parameter(typeof(object));
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var call = Expression.Call(method, stackParam, Expression.Convert(objParam, _dictionaryType));
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_dictionaryAdder = Expression.Lambda<Action<RecyclableStack<T>, object>>(call, stackParam, objParam).Compile();
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}
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}
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else if (elementType.IsGenericType && elementType.GetGenericTypeDefinition() == typeof(ValueTuple<,>))
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{
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Type[] args = elementType.GetGenericArguments();
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_sortedListType = typeof(RecyclableSortedList<,>).MakeGenericType(args);
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MethodInfo? method = typeof(zRecyclableStackAddRange).GetMethod(
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nameof(AddRange),
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BindingFlags.NonPublic | BindingFlags.Static,
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binder: null,
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types: new[] { typeof(RecyclableStack<>).MakeGenericType(elementType), _sortedListType },
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modifiers: null);
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if (method != null)
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{
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var stackParam = Expression.Parameter(typeof(RecyclableStack<T>));
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var objParam = Expression.Parameter(typeof(object));
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var call = Expression.Call(method, stackParam, Expression.Convert(objParam, _sortedListType));
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_sortedListAdder = Expression.Lambda<Action<RecyclableStack<T>, object>>(call, stackParam, objParam).Compile();
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}
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}
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}
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internal static bool TryAddRange(RecyclableStack<T> stack, IEnumerable<T> items)
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{
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if (_dictionaryAdder != null && _dictionaryType!.IsInstanceOfType(items))
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{
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_dictionaryAdder(stack, items);
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return true;
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}
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if (_sortedListAdder != null && _sortedListType!.IsInstanceOfType(items))
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{
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_sortedListAdder(stack, items);
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return true;
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}
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return false;
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}
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}
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[MethodImpl(MethodImplOptions.NoInlining | MethodImplOptions.AggressiveOptimization)]
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internal static void AddRange<T>(this RecyclableStack<T> stack, ReadOnlySpan<T> items)
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{
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for (int i = 0; i < items.Length; i++)
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{
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stack.Push(items[i]);
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}
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}
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[MethodImpl(MethodImplOptions.NoInlining | MethodImplOptions.AggressiveOptimization)]
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internal static void AddRange<T>(this RecyclableStack<T> stack, Span<T> items) => AddRange(stack, (ReadOnlySpan<T>)items);
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[MethodImpl(MethodImplOptions.NoInlining | MethodImplOptions.AggressiveOptimization)]
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internal static void AddRange<T>(this RecyclableStack<T> stack, T[] items) => AddRange(stack, (ReadOnlySpan<T>)items);
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[MethodImpl(MethodImplOptions.NoInlining | MethodImplOptions.AggressiveOptimization)]
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internal static void AddRange<T>(this RecyclableStack<T> stack, in Array items)
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{
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for (int i = 0; i < items.Length; i++)
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{
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stack.Push((T)items.GetValue(i)!);
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}
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}
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[MethodImpl(MethodImplOptions.NoInlining | MethodImplOptions.AggressiveOptimization)]
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internal static void AddRange<T>(this RecyclableStack<T> stack, List<T> items) => AddRange(stack, CollectionsMarshal.AsSpan(items));
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[MethodImpl(MethodImplOptions.NoInlining | MethodImplOptions.AggressiveOptimization)]
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internal static void AddRange<T>(this RecyclableStack<T> stack, ICollection items)
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{
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int count = items.Count;
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if (count == 0)
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{
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return;
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}
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T[] buffer = count >= RecyclableDefaults.MinPooledArrayLength
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? RecyclableArrayPool<T>.RentShared(checked((int)BitOperations.RoundUpToPowerOf2((uint)count)))
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: new T[count];
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items.CopyTo(buffer, 0);
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for (int i = 0; i < count; i++)
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{
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stack.Push(buffer[i]);
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}
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if (count >= RecyclableDefaults.MinPooledArrayLength)
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{
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RecyclableArrayPool<T>.ReturnShared(buffer, RecyclableStack<T>._needsClearing);
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}
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}
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[MethodImpl(MethodImplOptions.NoInlining | MethodImplOptions.AggressiveOptimization)]
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internal static void AddRange<T>(this RecyclableStack<T> stack, ICollection<T> items)
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{
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int count = items.Count;
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if (count == 0)
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{
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return;
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}
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T[] buffer = count >= RecyclableDefaults.MinPooledArrayLength
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? RecyclableArrayPool<T>.RentShared(checked((int)BitOperations.RoundUpToPowerOf2((uint)count)))
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: new T[count];
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items.CopyTo(buffer, 0);
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for (int i = 0; i < count; i++)
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{
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stack.Push(buffer[i]);
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}
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if (count >= RecyclableDefaults.MinPooledArrayLength)
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{
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RecyclableArrayPool<T>.ReturnShared(buffer, RecyclableStack<T>._needsClearing);
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}
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}
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[MethodImpl(MethodImplOptions.NoInlining | MethodImplOptions.AggressiveOptimization)]
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internal static void AddRange<T>(this RecyclableStack<T> stack, RecyclableList<T> items)
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{
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AddRange(stack, new ReadOnlySpan<T>(items._memoryBlock, 0, items._count));
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}
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[MethodImpl(MethodImplOptions.NoInlining | MethodImplOptions.AggressiveOptimization)]
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internal static void AddRange<T>(this RecyclableStack<T> stack, RecyclableLongList<T> items)
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{
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long longCount = items._longCount;
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if (longCount == 0)
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{
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return;
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}
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int blockSize = items._blockSize;
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int fullBlocks = (int)(longCount >> items._blockSizePow2BitShift);
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int lastBlockLength = (int)(longCount & items._blockSizeMinus1);
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for (int blockIndex = 0; blockIndex < fullBlocks; blockIndex++)
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{
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T[] block = items._memoryBlocks[blockIndex];
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for (int i = 0; i < blockSize; i++)
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{
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stack.Push(block[i]);
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}
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}
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if (lastBlockLength > 0)
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{
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T[] block = items._memoryBlocks[fullBlocks];
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for (int i = 0; i < lastBlockLength; i++)
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{
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stack.Push(block[i]);
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}
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}
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}
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[MethodImpl(MethodImplOptions.NoInlining | MethodImplOptions.AggressiveOptimization)]
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internal static void AddRange<T>(this RecyclableStack<T> stack, RecyclableHashSet<T> items)
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{
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var entries = items._entries;
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int shift = items._blockShift,
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mask = items._blockSizeMinus1;
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for (int i = 0; i < items._count; i++)
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{
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stack.Push(entries[i >> shift][i & mask].Value);
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}
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}
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[MethodImpl(MethodImplOptions.NoInlining | MethodImplOptions.AggressiveOptimization)]
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internal static void AddRange<T>(this RecyclableStack<T> stack, RecyclableStack<T> items)
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{
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if (items._count == 0)
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{
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return;
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}
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RecyclableArrayPoolChunk<T> chunk = items._current;
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while (chunk.Previous != null)
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{
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chunk = chunk.Previous;
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}
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while (chunk != null)
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{
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for (int i = 0; i < chunk.Index; i++)
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{
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stack.Push(chunk.Value[i]);
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}
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chunk = chunk.Next!;
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}
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}
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[MethodImpl(MethodImplOptions.NoInlining | MethodImplOptions.AggressiveOptimization)]
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internal static void AddRange<T>(this RecyclableStack<T> stack, RecyclableSortedSet<T> items)
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{
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for (int i = 0; i < items._count; i++)
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{
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stack.Push(items._items[i]);
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}
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}
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[MethodImpl(MethodImplOptions.NoInlining | MethodImplOptions.AggressiveOptimization)]
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internal static void AddRange<T>(this RecyclableStack<T> stack, RecyclableLinkedList<T> items)
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{
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var chunk = items._head;
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while (chunk != null)
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{
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for (int i = chunk.Bottom; i < chunk.Top; i++)
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{
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stack.Push(chunk.Value[i]);
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}
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chunk = chunk.Next;
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}
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}
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[MethodImpl(MethodImplOptions.NoInlining | MethodImplOptions.AggressiveOptimization)]
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internal static void AddRange<T>(this RecyclableStack<T> stack, RecyclablePriorityQueue<T> items)
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{
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AddRange(stack, new ReadOnlySpan<T>(items._heap, 0, items._size));
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}
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[MethodImpl(MethodImplOptions.NoInlining | MethodImplOptions.AggressiveOptimization)]
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internal static void AddRange<T>(this RecyclableStack<T> stack, RecyclableQueue<T> items)
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{
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var chunk = items._head;
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while (chunk != null)
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{
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for (int i = chunk.Bottom; i < chunk.Top; i++)
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{
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stack.Push(chunk.Value[i]);
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}
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chunk = chunk.Next;
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}
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}
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[MethodImpl(MethodImplOptions.NoInlining | MethodImplOptions.AggressiveOptimization)]
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internal static void AddRange<TKey, TValue>(this RecyclableStack<KeyValuePair<TKey, TValue>> stack, RecyclableDictionary<TKey, TValue> items)
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where TKey : notnull
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{
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var entries = items._entries;
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int shift = items._blockShift,
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mask = items._blockSizeMinus1;
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for (int i = 0; i < items._count; i++)
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{
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ref var entry = ref entries[i >> shift][i & mask];
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stack.Push(new KeyValuePair<TKey, TValue>(entry.Key, entry.Value));
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}
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}
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[MethodImpl(MethodImplOptions.NoInlining | MethodImplOptions.AggressiveOptimization)]
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internal static void AddRange<TKey, TValue>(this RecyclableStack<(TKey Key, TValue Value)> stack, RecyclableSortedList<TKey, TValue> items)
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where TKey : notnull
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{
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for (int i = 0; i < items._count; i++)
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{
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stack.Push((items._keys[i], items._values[i]));
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}
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}
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[MethodImpl(MethodImplOptions.NoInlining | MethodImplOptions.AggressiveOptimization)]
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internal static void AddRange<T>(this RecyclableStack<T> stack, IReadOnlyList<T> items)
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{
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for (int i = 0; i < items.Count; i++)
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{
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stack.Push(items[i]);
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}
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}
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internal static IEnumerator AddRange<T>(this RecyclableStack<T> stack, IEnumerable source)
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{
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var enumerator = source.GetEnumerator();
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while (enumerator.MoveNext())
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{
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stack.Push((T)enumerator.Current!);
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}
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return enumerator;
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}
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[MethodImpl(MethodImplOptions.NoInlining | MethodImplOptions.AggressiveOptimization)]
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internal static void AddRange<T>(this RecyclableStack<T> stack, IEnumerable<T> items)
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{
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if (items is RecyclableList<T> recyclableList)
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{
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AddRange(stack, recyclableList);
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}
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else if (items is RecyclableLongList<T> recyclableLongList)
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{
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AddRange(stack, recyclableLongList);
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}
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else if (items is T[] array)
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{
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AddRange(stack, array);
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}
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else if (items is List<T> list)
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{
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AddRange(stack, list);
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}
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else if (items is ICollection<T> iCollection)
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{
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AddRange(stack, iCollection);
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}
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else if (items is ICollection collection)
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{
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AddRange(stack, collection);
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}
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else if (items is RecyclableHashSet<T> hashSet)
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{
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AddRange(stack, hashSet);
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}
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else if (items is RecyclableStack<T> stackSource)
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{
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AddRange(stack, stackSource);
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}
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else if (items is RecyclableSortedSet<T> sortedSet)
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{
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AddRange(stack, sortedSet);
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}
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else if (items is RecyclableLinkedList<T> linkedList)
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{
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AddRange(stack, linkedList);
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}
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else if (items is RecyclablePriorityQueue<T> priorityQueue)
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{
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AddRange(stack, priorityQueue);
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}
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else if (items is RecyclableQueue<T> queue)
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{
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AddRange(stack, queue);
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}
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else if (AddRangeHelper<T>.TryAddRange(stack, items))
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{
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}
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else if (items is IReadOnlyList<T> readOnlyList)
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{
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AddRange(stack, readOnlyList);
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}
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else
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{
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using IEnumerator<T> enumerator = items.GetEnumerator();
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while (enumerator.MoveNext())
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{
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stack.Push(enumerator.Current);
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}
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}
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}
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}
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}
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@@ -128,5 +128,243 @@ namespace Recyclable.CollectionsTests
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_ = Assert.Throws<ArgumentOutOfRangeException>(() => list.Pop());
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}
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[Fact]
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public void AddRangeShouldAcceptNulls()
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{
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using var stack = new RecyclableStack<long?>();
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stack.AddRange(new long?[] { null, default });
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_ = stack.Should().HaveCount(2).And.AllSatisfy(x => x.Should().BeNull());
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}
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[Theory]
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[MemberData(nameof(RecyclableLongListTestData.SourceDataVariants), MemberType = typeof(RecyclableLongListTestData))]
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public void AddRangeShouldAddItemsInCorrectOrder(string testCase, IEnumerable<long> testData, int itemsCount)
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{
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using var stack = new RecyclableStack<long>();
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if (testCase.Contains("Array[", StringComparison.OrdinalIgnoreCase))
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{
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stack.AddRange((Array)testData);
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}
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else if (testCase.Contains("ICollection[", StringComparison.OrdinalIgnoreCase))
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{
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stack.AddRange((System.Collections.ICollection)testData);
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}
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else if (testCase.Contains("ICollection<T>[", StringComparison.OrdinalIgnoreCase))
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{
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stack.AddRange((ICollection<long>)testData);
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}
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else if (testCase.Contains("IEnumerable[", StringComparison.OrdinalIgnoreCase))
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{
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_ = stack.AddRange((System.Collections.IEnumerable)testData);
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}
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else if (testCase.Contains("IReadOnlyList<T>[", StringComparison.OrdinalIgnoreCase))
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{
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stack.AddRange((IReadOnlyList<long>)testData);
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}
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else if (testCase.Contains("ReadOnlySpan<T>[", StringComparison.OrdinalIgnoreCase))
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{
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stack.AddRange(new ReadOnlySpan<long>((long[])testData));
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}
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else if (testCase.Contains("Span<T>[", StringComparison.OrdinalIgnoreCase))
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{
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stack.AddRange(new Span<long>((long[])testData));
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}
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else if (testData is long[] array)
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{
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stack.AddRange(array);
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}
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else if (testData is List<long> list)
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{
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stack.AddRange(list);
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}
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else if (testData is RecyclableList<long> rList)
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{
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stack.AddRange(rList);
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}
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else if (testData is RecyclableLongList<long> rLongList)
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{
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stack.AddRange(rLongList);
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}
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else if (testData is IList<long> iList)
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{
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stack.AddRange((ICollection<long>)iList);
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}
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else if (testData is IEnumerable<long> enumerable)
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{
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stack.AddRange(enumerable);
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}
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else
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{
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throw new InvalidCastException("Unknown type of test data");
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}
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List<long> expected = new(itemsCount);
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expected.AddRange(testData);
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expected.Reverse();
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_ = stack.Count.Should().Be(itemsCount);
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_ = stack.Should().Equal(expected);
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}
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[Theory]
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[MemberData(nameof(RecyclableLongListTestData.EmptySourceDataVariants), MemberType = typeof(RecyclableLongListTestData))]
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public void AddRangeShouldDoNothingWhenSourceIsEmpty(string testCase, IEnumerable<long> testData, int itemsCount)
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{
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using var stack = new RecyclableStack<long>();
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if (testCase.Contains("Array[", StringComparison.OrdinalIgnoreCase))
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||||
{
|
||||
stack.AddRange((Array)testData);
|
||||
}
|
||||
else if (testCase.Contains("ICollection[", StringComparison.OrdinalIgnoreCase))
|
||||
{
|
||||
stack.AddRange((System.Collections.ICollection)testData);
|
||||
}
|
||||
else if (testCase.Contains("ICollection<T>[", StringComparison.OrdinalIgnoreCase))
|
||||
{
|
||||
stack.AddRange((ICollection<long>)testData);
|
||||
}
|
||||
else if (testCase.Contains("IEnumerable[", StringComparison.OrdinalIgnoreCase))
|
||||
{
|
||||
_ = stack.AddRange((System.Collections.IEnumerable)testData);
|
||||
}
|
||||
else if (testCase.Contains("IReadOnlyList<T>[", StringComparison.OrdinalIgnoreCase))
|
||||
{
|
||||
stack.AddRange((IReadOnlyList<long>)testData);
|
||||
}
|
||||
else if (testCase.Contains("ReadOnlySpan<T>[", StringComparison.OrdinalIgnoreCase))
|
||||
{
|
||||
stack.AddRange(new ReadOnlySpan<long>((long[])testData));
|
||||
}
|
||||
else if (testCase.Contains("Span<T>[", StringComparison.OrdinalIgnoreCase))
|
||||
{
|
||||
stack.AddRange(new Span<long>((long[])testData));
|
||||
}
|
||||
else if (testData is long[] array)
|
||||
{
|
||||
stack.AddRange(array);
|
||||
}
|
||||
else if (testData is List<long> list)
|
||||
{
|
||||
stack.AddRange(list);
|
||||
}
|
||||
else if (testData is RecyclableList<long> rList)
|
||||
{
|
||||
stack.AddRange(rList);
|
||||
}
|
||||
else if (testData is RecyclableLongList<long> rLongList)
|
||||
{
|
||||
stack.AddRange(rLongList);
|
||||
}
|
||||
else if (testData is IList<long> iList)
|
||||
{
|
||||
stack.AddRange((ICollection<long>)iList);
|
||||
}
|
||||
else if (testData is IEnumerable<long> enumerable)
|
||||
{
|
||||
stack.AddRange(enumerable);
|
||||
}
|
||||
else
|
||||
{
|
||||
throw new InvalidCastException("Unknown type of test data");
|
||||
}
|
||||
|
||||
List<long> expected = new(itemsCount);
|
||||
expected.AddRange(testData);
|
||||
expected.Reverse();
|
||||
|
||||
_ = stack.Count.Should().Be(itemsCount);
|
||||
_ = stack.Should().Equal(expected);
|
||||
}
|
||||
|
||||
[Theory]
|
||||
[MemberData(nameof(RecyclableLongListTestData.SourceDataVariants), MemberType = typeof(RecyclableLongListTestData))]
|
||||
public void AddRangeShouldNotOverrideItems(string testCase, IEnumerable<long> testData, int itemsCount)
|
||||
{
|
||||
using var stack = new RecyclableStack<long>();
|
||||
itemsCount = checked(itemsCount << 1);
|
||||
|
||||
if (testCase.Contains("Array[", StringComparison.OrdinalIgnoreCase))
|
||||
{
|
||||
stack.AddRange((Array)testData);
|
||||
stack.AddRange((Array)testData);
|
||||
}
|
||||
else if (testCase.Contains("ICollection[", StringComparison.OrdinalIgnoreCase))
|
||||
{
|
||||
stack.AddRange((System.Collections.ICollection)testData);
|
||||
stack.AddRange((System.Collections.ICollection)testData);
|
||||
}
|
||||
else if (testCase.Contains("ICollection<T>[", StringComparison.OrdinalIgnoreCase))
|
||||
{
|
||||
stack.AddRange((ICollection<long>)testData);
|
||||
stack.AddRange((ICollection<long>)testData);
|
||||
}
|
||||
else if (testCase.Contains("IEnumerable[", StringComparison.OrdinalIgnoreCase))
|
||||
{
|
||||
_ = stack.AddRange((System.Collections.IEnumerable)testData);
|
||||
_ = stack.AddRange((System.Collections.IEnumerable)testData);
|
||||
}
|
||||
else if (testCase.Contains("IReadOnlyList<T>[", StringComparison.OrdinalIgnoreCase))
|
||||
{
|
||||
stack.AddRange((IReadOnlyList<long>)testData);
|
||||
stack.AddRange((IReadOnlyList<long>)testData);
|
||||
}
|
||||
else if (testCase.Contains("ReadOnlySpan<T>[", StringComparison.OrdinalIgnoreCase))
|
||||
{
|
||||
var span = new ReadOnlySpan<long>((long[])testData);
|
||||
stack.AddRange(span);
|
||||
stack.AddRange(span);
|
||||
}
|
||||
else if (testCase.Contains("Span<T>[", StringComparison.OrdinalIgnoreCase))
|
||||
{
|
||||
var span = new Span<long>((long[])testData);
|
||||
stack.AddRange(span);
|
||||
stack.AddRange(span);
|
||||
}
|
||||
else if (testData is long[] array)
|
||||
{
|
||||
stack.AddRange(array);
|
||||
stack.AddRange(array);
|
||||
}
|
||||
else if (testData is List<long> list)
|
||||
{
|
||||
stack.AddRange(list);
|
||||
stack.AddRange(list);
|
||||
}
|
||||
else if (testData is RecyclableList<long> rList)
|
||||
{
|
||||
stack.AddRange(rList);
|
||||
stack.AddRange(rList);
|
||||
}
|
||||
else if (testData is RecyclableLongList<long> rLongList)
|
||||
{
|
||||
stack.AddRange(rLongList);
|
||||
stack.AddRange(rLongList);
|
||||
}
|
||||
else if (testData is IList<long> iList)
|
||||
{
|
||||
stack.AddRange((ICollection<long>)iList);
|
||||
stack.AddRange((ICollection<long>)iList);
|
||||
}
|
||||
else if (testData is IEnumerable<long> enumerable)
|
||||
{
|
||||
stack.AddRange(enumerable);
|
||||
stack.AddRange(enumerable);
|
||||
}
|
||||
else
|
||||
{
|
||||
throw new InvalidCastException("Unknown type of test data");
|
||||
}
|
||||
|
||||
List<long> expected = new(itemsCount);
|
||||
expected.AddRange(testData);
|
||||
expected.AddRange(testData);
|
||||
expected.Reverse();
|
||||
|
||||
_ = stack.Count.Should().Be(itemsCount);
|
||||
_ = stack.Should().Equal(expected);
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
Reference in new issue
Block a user