You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
625 lines
15 KiB
625 lines
15 KiB
//
|
|
// System.Collections.Generic.List
|
|
//
|
|
// Authors:
|
|
// Ben Maurer (bmaurer@ximian.com)
|
|
// Martin Baulig (martin@ximian.com)
|
|
// Carlos Alberto Cortez (calberto.cortez@gmail.com)
|
|
// David Waite (mass@akuma.org)
|
|
//
|
|
// Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
|
|
// Copyright (C) 2005 David Waite
|
|
//
|
|
// 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.Diagnostics;
|
|
|
|
namespace Spine {
|
|
[DebuggerDisplay("Count={Count}")]
|
|
public class ExposedList<T> : IEnumerable<T> {
|
|
public T[] Items;
|
|
public int Count;
|
|
private const int DefaultCapacity = 4;
|
|
private static readonly T[] EmptyArray = new T[0];
|
|
private int version;
|
|
|
|
public ExposedList () {
|
|
Items = EmptyArray;
|
|
}
|
|
|
|
public ExposedList (IEnumerable<T> collection) {
|
|
CheckCollection(collection);
|
|
|
|
// initialize to needed size (if determinable)
|
|
ICollection<T> c = collection as ICollection<T>;
|
|
if (c == null) {
|
|
Items = EmptyArray;
|
|
AddEnumerable(collection);
|
|
} else {
|
|
Items = new T[c.Count];
|
|
AddCollection(c);
|
|
}
|
|
}
|
|
|
|
public ExposedList (int capacity) {
|
|
if (capacity < 0)
|
|
throw new ArgumentOutOfRangeException("capacity");
|
|
Items = new T[capacity];
|
|
}
|
|
|
|
internal ExposedList (T[] data, int size) {
|
|
Items = data;
|
|
Count = size;
|
|
}
|
|
|
|
public void Add (T item) {
|
|
// If we check to see if we need to grow before trying to grow
|
|
// we can speed things up by 25%
|
|
if (Count == Items.Length)
|
|
GrowIfNeeded(1);
|
|
Items[Count++] = item;
|
|
version++;
|
|
}
|
|
|
|
public void GrowIfNeeded (int newCount) {
|
|
int minimumSize = Count + newCount;
|
|
if (minimumSize > Items.Length)
|
|
Capacity = Math.Max(Math.Max(Capacity * 2, DefaultCapacity), minimumSize);
|
|
}
|
|
|
|
public ExposedList<T> Resize (int newSize) {
|
|
int itemsLength = Items.Length;
|
|
var oldItems = Items;
|
|
if (newSize > itemsLength) {
|
|
Array.Resize(ref Items, newSize);
|
|
// var newItems = new T[newSize];
|
|
// Array.Copy(oldItems, newItems, Count);
|
|
// Items = newItems;
|
|
} else if (newSize < itemsLength) {
|
|
// Allow nulling of T reference type to allow GC.
|
|
for (int i = newSize; i < itemsLength; i++)
|
|
oldItems[i] = default(T);
|
|
}
|
|
Count = newSize;
|
|
return this;
|
|
}
|
|
|
|
public void EnsureCapacity (int min) {
|
|
if (Items.Length < min) {
|
|
int newCapacity = Items.Length == 0 ? DefaultCapacity : Items.Length * 2;
|
|
//if ((uint)newCapacity > Array.MaxArrayLength) newCapacity = Array.MaxArrayLength;
|
|
if (newCapacity < min) newCapacity = min;
|
|
Capacity = newCapacity;
|
|
}
|
|
}
|
|
|
|
private void CheckRange (int index, int count) {
|
|
if (index < 0)
|
|
throw new ArgumentOutOfRangeException("index");
|
|
|
|
if (count < 0)
|
|
throw new ArgumentOutOfRangeException("count");
|
|
|
|
if ((uint)index + (uint)count > (uint)Count)
|
|
throw new ArgumentException("index and count exceed length of list");
|
|
}
|
|
|
|
private void AddCollection (ICollection<T> collection) {
|
|
int collectionCount = collection.Count;
|
|
if (collectionCount == 0)
|
|
return;
|
|
|
|
GrowIfNeeded(collectionCount);
|
|
collection.CopyTo(Items, Count);
|
|
Count += collectionCount;
|
|
}
|
|
|
|
private void AddEnumerable (IEnumerable<T> enumerable) {
|
|
foreach (T t in enumerable) {
|
|
Add(t);
|
|
}
|
|
}
|
|
|
|
public void AddRange (IEnumerable<T> collection) {
|
|
CheckCollection(collection);
|
|
|
|
ICollection<T> c = collection as ICollection<T>;
|
|
if (c != null)
|
|
AddCollection(c);
|
|
else
|
|
AddEnumerable(collection);
|
|
version++;
|
|
}
|
|
|
|
public int BinarySearch (T item) {
|
|
return Array.BinarySearch<T>(Items, 0, Count, item);
|
|
}
|
|
|
|
public int BinarySearch (T item, IComparer<T> comparer) {
|
|
return Array.BinarySearch<T>(Items, 0, Count, item, comparer);
|
|
}
|
|
|
|
public int BinarySearch (int index, int count, T item, IComparer<T> comparer) {
|
|
CheckRange(index, count);
|
|
return Array.BinarySearch<T>(Items, index, count, item, comparer);
|
|
}
|
|
|
|
public void Clear (bool clearArray = true) {
|
|
if (clearArray)
|
|
Array.Clear(Items, 0, Items.Length);
|
|
|
|
Count = 0;
|
|
version++;
|
|
}
|
|
|
|
public bool Contains (T item) {
|
|
return Array.IndexOf<T>(Items, item, 0, Count) != -1;
|
|
}
|
|
|
|
public ExposedList<TOutput> ConvertAll<TOutput> (Converter<T, TOutput> converter) {
|
|
if (converter == null)
|
|
throw new ArgumentNullException("converter");
|
|
ExposedList<TOutput> u = new ExposedList<TOutput>(Count);
|
|
for (int i = 0; i < Count; i++)
|
|
u.Items[i] = converter(Items[i]);
|
|
|
|
u.Count = Count;
|
|
return u;
|
|
}
|
|
|
|
public void CopyTo (T[] array) {
|
|
Array.Copy(Items, 0, array, 0, Count);
|
|
}
|
|
|
|
public void CopyTo (T[] array, int arrayIndex) {
|
|
Array.Copy(Items, 0, array, arrayIndex, Count);
|
|
}
|
|
|
|
public void CopyTo (int index, T[] array, int arrayIndex, int count) {
|
|
CheckRange(index, count);
|
|
Array.Copy(Items, index, array, arrayIndex, count);
|
|
}
|
|
|
|
|
|
|
|
public bool Exists (Predicate<T> match) {
|
|
CheckMatch(match);
|
|
return GetIndex(0, Count, match) != -1;
|
|
}
|
|
|
|
public T Find (Predicate<T> match) {
|
|
CheckMatch(match);
|
|
int i = GetIndex(0, Count, match);
|
|
return (i != -1) ? Items[i] : default(T);
|
|
}
|
|
|
|
private static void CheckMatch (Predicate<T> match) {
|
|
if (match == null)
|
|
throw new ArgumentNullException("match");
|
|
}
|
|
|
|
public ExposedList<T> FindAll (Predicate<T> match) {
|
|
CheckMatch(match);
|
|
return FindAllList(match);
|
|
}
|
|
|
|
private ExposedList<T> FindAllList (Predicate<T> match) {
|
|
ExposedList<T> results = new ExposedList<T>();
|
|
for (int i = 0; i < Count; i++)
|
|
if (match(Items[i]))
|
|
results.Add(Items[i]);
|
|
|
|
return results;
|
|
}
|
|
|
|
public int FindIndex (Predicate<T> match) {
|
|
CheckMatch(match);
|
|
return GetIndex(0, Count, match);
|
|
}
|
|
|
|
public int FindIndex (int startIndex, Predicate<T> match) {
|
|
CheckMatch(match);
|
|
CheckIndex(startIndex);
|
|
return GetIndex(startIndex, Count - startIndex, match);
|
|
}
|
|
|
|
public int FindIndex (int startIndex, int count, Predicate<T> match) {
|
|
CheckMatch(match);
|
|
CheckRange(startIndex, count);
|
|
return GetIndex(startIndex, count, match);
|
|
}
|
|
|
|
private int GetIndex (int startIndex, int count, Predicate<T> match) {
|
|
int end = startIndex + count;
|
|
for (int i = startIndex; i < end; i++)
|
|
if (match(Items[i]))
|
|
return i;
|
|
|
|
return -1;
|
|
}
|
|
|
|
public T FindLast (Predicate<T> match) {
|
|
CheckMatch(match);
|
|
int i = GetLastIndex(0, Count, match);
|
|
return i == -1 ? default(T) : Items[i];
|
|
}
|
|
|
|
public int FindLastIndex (Predicate<T> match) {
|
|
CheckMatch(match);
|
|
return GetLastIndex(0, Count, match);
|
|
}
|
|
|
|
public int FindLastIndex (int startIndex, Predicate<T> match) {
|
|
CheckMatch(match);
|
|
CheckIndex(startIndex);
|
|
return GetLastIndex(0, startIndex + 1, match);
|
|
}
|
|
|
|
public int FindLastIndex (int startIndex, int count, Predicate<T> match) {
|
|
CheckMatch(match);
|
|
int start = startIndex - count + 1;
|
|
CheckRange(start, count);
|
|
return GetLastIndex(start, count, match);
|
|
}
|
|
|
|
private int GetLastIndex (int startIndex, int count, Predicate<T> match) {
|
|
// unlike FindLastIndex, takes regular params for search range
|
|
for (int i = startIndex + count; i != startIndex; )
|
|
if (match(Items[--i]))
|
|
return i;
|
|
return -1;
|
|
}
|
|
|
|
public void ForEach (Action<T> action) {
|
|
if (action == null)
|
|
throw new ArgumentNullException("action");
|
|
for (int i = 0; i < Count; i++)
|
|
action(Items[i]);
|
|
}
|
|
|
|
public Enumerator GetEnumerator () {
|
|
return new Enumerator(this);
|
|
}
|
|
|
|
public ExposedList<T> GetRange (int index, int count) {
|
|
CheckRange(index, count);
|
|
T[] tmpArray = new T[count];
|
|
Array.Copy(Items, index, tmpArray, 0, count);
|
|
return new ExposedList<T>(tmpArray, count);
|
|
}
|
|
|
|
public int IndexOf (T item) {
|
|
return Array.IndexOf<T>(Items, item, 0, Count);
|
|
}
|
|
|
|
public int IndexOf (T item, int index) {
|
|
CheckIndex(index);
|
|
return Array.IndexOf<T>(Items, item, index, Count - index);
|
|
}
|
|
|
|
public int IndexOf (T item, int index, int count) {
|
|
if (index < 0)
|
|
throw new ArgumentOutOfRangeException("index");
|
|
|
|
if (count < 0)
|
|
throw new ArgumentOutOfRangeException("count");
|
|
|
|
if ((uint)index + (uint)count > (uint)Count)
|
|
throw new ArgumentOutOfRangeException("index and count exceed length of list");
|
|
|
|
return Array.IndexOf<T>(Items, item, index, count);
|
|
}
|
|
|
|
private void Shift (int start, int delta) {
|
|
if (delta < 0)
|
|
start -= delta;
|
|
|
|
if (start < Count)
|
|
Array.Copy(Items, start, Items, start + delta, Count - start);
|
|
|
|
Count += delta;
|
|
|
|
if (delta < 0)
|
|
Array.Clear(Items, Count, -delta);
|
|
}
|
|
|
|
private void CheckIndex (int index) {
|
|
if (index < 0 || (uint)index > (uint)Count)
|
|
throw new ArgumentOutOfRangeException("index");
|
|
}
|
|
|
|
public void Insert (int index, T item) {
|
|
CheckIndex(index);
|
|
if (Count == Items.Length)
|
|
GrowIfNeeded(1);
|
|
Shift(index, 1);
|
|
Items[index] = item;
|
|
version++;
|
|
}
|
|
|
|
private void CheckCollection (IEnumerable<T> collection) {
|
|
if (collection == null)
|
|
throw new ArgumentNullException("collection");
|
|
}
|
|
|
|
public void InsertRange (int index, IEnumerable<T> collection) {
|
|
CheckCollection(collection);
|
|
CheckIndex(index);
|
|
if (collection == this) {
|
|
T[] buffer = new T[Count];
|
|
CopyTo(buffer, 0);
|
|
GrowIfNeeded(Count);
|
|
Shift(index, buffer.Length);
|
|
Array.Copy(buffer, 0, Items, index, buffer.Length);
|
|
} else {
|
|
ICollection<T> c = collection as ICollection<T>;
|
|
if (c != null)
|
|
InsertCollection(index, c);
|
|
else
|
|
InsertEnumeration(index, collection);
|
|
}
|
|
version++;
|
|
}
|
|
|
|
private void InsertCollection (int index, ICollection<T> collection) {
|
|
int collectionCount = collection.Count;
|
|
GrowIfNeeded(collectionCount);
|
|
|
|
Shift(index, collectionCount);
|
|
collection.CopyTo(Items, index);
|
|
}
|
|
|
|
private void InsertEnumeration (int index, IEnumerable<T> enumerable) {
|
|
foreach (T t in enumerable)
|
|
Insert(index++, t);
|
|
}
|
|
|
|
public int LastIndexOf (T item) {
|
|
return Array.LastIndexOf<T>(Items, item, Count - 1, Count);
|
|
}
|
|
|
|
public int LastIndexOf (T item, int index) {
|
|
CheckIndex(index);
|
|
return Array.LastIndexOf<T>(Items, item, index, index + 1);
|
|
}
|
|
|
|
public int LastIndexOf (T item, int index, int count) {
|
|
if (index < 0)
|
|
throw new ArgumentOutOfRangeException("index", index, "index is negative");
|
|
|
|
if (count < 0)
|
|
throw new ArgumentOutOfRangeException("count", count, "count is negative");
|
|
|
|
if (index - count + 1 < 0)
|
|
throw new ArgumentOutOfRangeException("count", count, "count is too large");
|
|
|
|
return Array.LastIndexOf<T>(Items, item, index, count);
|
|
}
|
|
|
|
public bool Remove (T item) {
|
|
int loc = IndexOf(item);
|
|
if (loc != -1)
|
|
RemoveAt(loc);
|
|
|
|
return loc != -1;
|
|
}
|
|
|
|
public int RemoveAll (Predicate<T> match) {
|
|
CheckMatch(match);
|
|
int i = 0;
|
|
int j = 0;
|
|
|
|
// Find the first item to remove
|
|
for (i = 0; i < Count; i++)
|
|
if (match(Items[i]))
|
|
break;
|
|
|
|
if (i == Count)
|
|
return 0;
|
|
|
|
version++;
|
|
|
|
// Remove any additional items
|
|
for (j = i + 1; j < Count; j++) {
|
|
if (!match(Items[j]))
|
|
Items[i++] = Items[j];
|
|
}
|
|
if (j - i > 0)
|
|
Array.Clear(Items, i, j - i);
|
|
|
|
Count = i;
|
|
return (j - i);
|
|
}
|
|
|
|
public void RemoveAt (int index) {
|
|
if (index < 0 || (uint)index >= (uint)Count)
|
|
throw new ArgumentOutOfRangeException("index");
|
|
Shift(index, -1);
|
|
Array.Clear(Items, Count, 1);
|
|
version++;
|
|
}
|
|
|
|
// Spine Added Method
|
|
// Based on Stack<T>.Pop(); https://referencesource.microsoft.com/#mscorlib/system/collections/stack.cs
|
|
/// <summary>Pops the last item of the list. If the list is empty, Pop throws an InvalidOperationException.</summary>
|
|
public T Pop () {
|
|
if (Count == 0)
|
|
throw new InvalidOperationException("List is empty. Nothing to pop.");
|
|
|
|
int i = Count - 1;
|
|
T item = Items[i];
|
|
Items[i] = default(T);
|
|
Count--;
|
|
version++;
|
|
return item;
|
|
}
|
|
|
|
public void RemoveRange (int index, int count) {
|
|
CheckRange(index, count);
|
|
if (count > 0) {
|
|
Shift(index, -count);
|
|
Array.Clear(Items, Count, count);
|
|
version++;
|
|
}
|
|
}
|
|
|
|
public void Reverse () {
|
|
Array.Reverse(Items, 0, Count);
|
|
version++;
|
|
}
|
|
|
|
public void Reverse (int index, int count) {
|
|
CheckRange(index, count);
|
|
Array.Reverse(Items, index, count);
|
|
version++;
|
|
}
|
|
|
|
public void Sort () {
|
|
Array.Sort<T>(Items, 0, Count, Comparer<T>.Default);
|
|
version++;
|
|
}
|
|
|
|
public void Sort (IComparer<T> comparer) {
|
|
Array.Sort<T>(Items, 0, Count, comparer);
|
|
version++;
|
|
}
|
|
|
|
public void Sort (Comparison<T> comparison) {
|
|
Array.Sort<T>(Items, comparison);
|
|
version++;
|
|
}
|
|
|
|
public void Sort (int index, int count, IComparer<T> comparer) {
|
|
CheckRange(index, count);
|
|
Array.Sort<T>(Items, index, count, comparer);
|
|
version++;
|
|
}
|
|
|
|
public T[] ToArray () {
|
|
T[] t = new T[Count];
|
|
Array.Copy(Items, t, Count);
|
|
|
|
return t;
|
|
}
|
|
|
|
public void TrimExcess () {
|
|
Capacity = Count;
|
|
}
|
|
|
|
public bool TrueForAll (Predicate<T> match) {
|
|
CheckMatch(match);
|
|
|
|
for (int i = 0; i < Count; i++)
|
|
if (!match(Items[i]))
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
public int Capacity {
|
|
get {
|
|
return Items.Length;
|
|
}
|
|
set {
|
|
if ((uint)value < (uint)Count)
|
|
throw new ArgumentOutOfRangeException();
|
|
|
|
Array.Resize(ref Items, value);
|
|
}
|
|
}
|
|
|
|
#region Interface implementations.
|
|
|
|
IEnumerator<T> IEnumerable<T>.GetEnumerator () {
|
|
return GetEnumerator();
|
|
}
|
|
|
|
IEnumerator IEnumerable.GetEnumerator () {
|
|
return GetEnumerator();
|
|
}
|
|
|
|
#endregion
|
|
|
|
public struct Enumerator : IEnumerator<T>, IDisposable {
|
|
private ExposedList<T> l;
|
|
private int next;
|
|
private int ver;
|
|
private T current;
|
|
|
|
internal Enumerator (ExposedList<T> l)
|
|
: this() {
|
|
this.l = l;
|
|
ver = l.version;
|
|
}
|
|
|
|
public void Dispose () {
|
|
l = null;
|
|
}
|
|
|
|
private void VerifyState () {
|
|
if (l == null)
|
|
throw new ObjectDisposedException(GetType().FullName);
|
|
if (ver != l.version)
|
|
throw new InvalidOperationException(
|
|
"Collection was modified; enumeration operation may not execute.");
|
|
}
|
|
|
|
public bool MoveNext () {
|
|
VerifyState();
|
|
|
|
if (next < 0)
|
|
return false;
|
|
|
|
if (next < l.Count) {
|
|
current = l.Items[next++];
|
|
return true;
|
|
}
|
|
|
|
next = -1;
|
|
return false;
|
|
}
|
|
|
|
public T Current {
|
|
get {
|
|
return current;
|
|
}
|
|
}
|
|
|
|
void IEnumerator.Reset () {
|
|
VerifyState();
|
|
next = 0;
|
|
}
|
|
|
|
object IEnumerator.Current {
|
|
get {
|
|
VerifyState();
|
|
if (next <= 0)
|
|
throw new InvalidOperationException();
|
|
return current;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|