| | | 1 | | namespace Towel.DataStructures; |
| | | 2 | | |
| | | 3 | | /// <summary>A map between instances of two types. The polymorphism base for Map implementations in Towel.</summary> |
| | | 4 | | /// <typeparam name="T">The generic type to be stored in this data structure.</typeparam> |
| | | 5 | | /// <typeparam name="TKey">The type of keys used to look up items in this structure.</typeparam> |
| | | 6 | | public interface IMap<T, TKey> : IDataStructure<T>, |
| | | 7 | | DataStructure.ICountable, |
| | | 8 | | DataStructure.IClearable, |
| | | 9 | | DataStructure.IAuditable<TKey>, |
| | | 10 | | DataStructure.IRemovable<TKey> |
| | | 11 | | { |
| | | 12 | | #region Properties |
| | | 13 | | |
| | | 14 | | /// <summary>Allows indexed look-up of the structure. (Set does not replace the Add() method)</summary> |
| | | 15 | | /// <param name="key">The "index" to access of the structure.</param> |
| | | 16 | | /// <returns>The value at the index of the requested key.</returns> |
| | | 17 | | T this[TKey key] { get; set; } |
| | | 18 | | |
| | | 19 | | #endregion |
| | | 20 | | |
| | | 21 | | #region Methods |
| | | 22 | | |
| | | 23 | | /// <summary>Tries to get a value by key.</summary> |
| | | 24 | | /// <param name="key">The key of the value to get.</param> |
| | | 25 | | /// <returns> |
| | | 26 | | /// - <see cref="bool"/> Success: true if the key was found or false if not.<br/> |
| | | 27 | | /// - <see cref="Exception"/>? Exception: the exception that occured if the get failed.<br/> |
| | | 28 | | /// - <typeparamref name="T"/>? Value: the value if the key was found or default if not. |
| | | 29 | | /// </returns> |
| | | 30 | | (bool Success, Exception? Exception, T? Value) TryGet(TKey key); |
| | | 31 | | |
| | | 32 | | /// <summary>Sets value in the map.</summary> |
| | | 33 | | /// <param name="key">The key of the value.</param> |
| | | 34 | | /// <param name="value">The value to be set.</param> |
| | | 35 | | /// <returns> |
| | | 36 | | /// - <see cref="bool"/> Success: true if the key+value was set or false if not.<br/> |
| | | 37 | | /// - <see cref="Exception"/>? Exception: the exception that occured if the set failed.<br/> |
| | | 38 | | /// - <see cref="bool"/>? Existed: if the key existed prior to being set<br/> |
| | | 39 | | /// - <typeparamref name="T"/>? OldValue: the previous value if the key existed prior to being set |
| | | 40 | | /// </returns> |
| | | 41 | | (bool Success, Exception? Exception, bool? Existed, T? OldValue) TrySet(TKey key, T value); |
| | | 42 | | |
| | | 43 | | /// <summary>Tries to add a value to the map.</summary> |
| | | 44 | | /// <param name="key">The key of the value.</param> |
| | | 45 | | /// <param name="value">The value to be added.</param> |
| | | 46 | | /// <returns> |
| | | 47 | | /// - <see cref="bool"/> Success: true if the key+value was added or false if not<br/> |
| | | 48 | | /// - <see cref="Exception"/>? Exception: the exception that occured if the add failed |
| | | 49 | | /// </returns> |
| | | 50 | | (bool Success, Exception? Exception) TryAdd(TKey key, T value); |
| | | 51 | | |
| | | 52 | | /// <summary>Tries to update a value in the map the relative key exists.</summary> |
| | | 53 | | /// <typeparam name="TRemovePredicate">The type of predicate determining if the pair should be removed.</typeparam> |
| | | 54 | | /// <typeparam name="TUpdate">The type of function to update the value.</typeparam> |
| | | 55 | | /// <param name="key">The key of the value to update.</param> |
| | | 56 | | /// <param name="removePredicate">The predicate determining if the pair should be removed.</param> |
| | | 57 | | /// <param name="update">The function to update the value relative to the key.</param> |
| | | 58 | | /// <returns> |
| | | 59 | | /// - <see cref="bool"/> Success: true if the key was found or false if not<br/> |
| | | 60 | | /// - <see cref="Exception"/>? Exception: the exception that occured if the add failed<br/> |
| | | 61 | | /// - <typeparamref name="T"/>? OldValue: the non-updated value if the key was found or default if not<br/> |
| | | 62 | | /// - <typeparamref name="T"/>? NewValue: the updated value if the key was found or default if not |
| | | 63 | | /// </returns> |
| | | 64 | | (bool Success, Exception? Exception, bool? Removed, T? OldValue, T? NewValue) TryRemoveOrUpdate<TRemovePredicate, TUpd |
| | | 65 | | where TRemovePredicate : struct, IFunc<T, bool> |
| | | 66 | | where TUpdate : struct, IFunc<T, T>; |
| | | 67 | | |
| | | 68 | | /// <summary>Tries to update a value in the map the relative key exists.</summary> |
| | | 69 | | /// <typeparam name="TUpdate">The type of function to update the value.</typeparam> |
| | | 70 | | /// <param name="key">The key of the value to update.</param> |
| | | 71 | | /// <param name="update">The function to update the value relative to the key.</param> |
| | | 72 | | /// <returns> |
| | | 73 | | /// - <see cref="bool"/> Success: true if the key was found or false if not<br/> |
| | | 74 | | /// - <see cref="Exception"/>? Exception: the exception that occured if the add failed<br/> |
| | | 75 | | /// - <typeparamref name="T"/>? OldValue: the non-updated value if the key was found or default if not<br/> |
| | | 76 | | /// - <typeparamref name="T"/>? NewValue: the updated value if the key was found or default if not |
| | | 77 | | /// </returns> |
| | | 78 | | (bool Success, Exception? Exception, T? OldValue, T? NewValue) TryUpdate<TUpdate>(TKey key, TUpdate update = default) |
| | | 79 | | where TUpdate : struct, IFunc<T, T>; |
| | | 80 | | |
| | | 81 | | /// <summary>Adds or updates the value at the given key.</summary> |
| | | 82 | | /// <typeparam name="TUpdate">The type of function to update the value if present.</typeparam> |
| | | 83 | | /// <param name="key">The key of the value to add or update.</param> |
| | | 84 | | /// <param name="value">The value to add if not already present.</param> |
| | | 85 | | /// <param name="update">The function to update the value if present.</param> |
| | | 86 | | /// <returns> |
| | | 87 | | /// - <see cref="bool"/> Success: true if the value was added or updated or false if not.<br/> |
| | | 88 | | /// - <see cref="Exception"/>? Exception: the exception that occured if the add or update failed.<br/> |
| | | 89 | | /// - <see cref="bool"/>? Existed: if the key existed prior to the add or update<br/> |
| | | 90 | | /// - <typeparamref name="T"/>? OldValue: the old value if the key existed prior to the add or update |
| | | 91 | | /// </returns> |
| | | 92 | | (bool Success, Exception? Exception, bool? Existed, T? OldValue) TryAddOrUpdate<TUpdate>(TKey key, T value, TUpdate up |
| | | 93 | | where TUpdate : struct, IFunc<T, T>; |
| | | 94 | | |
| | | 95 | | /// <summary>Gets an enumerator that will traverse the keys of the map.</summary> |
| | | 96 | | /// <returns>An enumerator that will traverse the keys of the map.</returns> |
| | | 97 | | System.Collections.Generic.IEnumerable<TKey> GetKeys(); |
| | | 98 | | |
| | | 99 | | /// <summary>Gets an array with all the keys in the map.</summary> |
| | | 100 | | /// <returns>An array with all the keys in the map.</returns> |
| | | 101 | | TKey[] KeysToArray(); |
| | | 102 | | |
| | | 103 | | /// <summary>Performs a function on every key in a map.</summary> |
| | | 104 | | /// <typeparam name="TStep">The type of the step function.</typeparam> |
| | | 105 | | /// <param name="step">The step function to perform on every key.</param> |
| | | 106 | | /// <returns>The status of traversal.</returns> |
| | | 107 | | StepStatus KeysBreak<TStep>(TStep step = default) |
| | | 108 | | where TStep : struct, IFunc<TKey, StepStatus>; |
| | | 109 | | |
| | | 110 | | /// <summary>Gets an enumerator that will traverse the pairs of the map.</summary> |
| | | 111 | | /// <returns>An enumerator that will traverse the pairs of the map.</returns> |
| | | 112 | | System.Collections.Generic.IEnumerable<(T Value, TKey Key)> GetPairs(); |
| | | 113 | | |
| | | 114 | | /// <summary>Gets an array with all the pairs in the map.</summary> |
| | | 115 | | /// <returns>An array with all the pairs in the map.</returns> |
| | | 116 | | (T Value, TKey Key)[] PairsToArray(); |
| | | 117 | | |
| | | 118 | | /// <summary>Performs a function on every pair in a map.</summary> |
| | | 119 | | /// <typeparam name="TStep">The type of the step function.</typeparam> |
| | | 120 | | /// <param name="step">The step function to perform on every pair.</param> |
| | | 121 | | /// <returns>The status of traversal.</returns> |
| | | 122 | | StepStatus PairsBreak<TStep>(TStep step = default) |
| | | 123 | | where TStep : struct, IFunc<(T Value, TKey Key), StepStatus>; |
| | | 124 | | |
| | | 125 | | #endregion |
| | | 126 | | } |
| | | 127 | | |
| | | 128 | | /// <summary>Static Extension class for Map interface implementers.</summary> |
| | | 129 | | public static class Map |
| | | 130 | | { |
| | | 131 | | #region Extensions Methods |
| | | 132 | | |
| | | 133 | | /// <summary>Updates a value in the map the relative key exists.</summary> |
| | | 134 | | /// <typeparam name="T">The type of values in the map.</typeparam> |
| | | 135 | | /// <typeparam name="TKey">The type of keys in the map.</typeparam> |
| | | 136 | | /// <param name="map">The map to update the value in.</param> |
| | | 137 | | /// <param name="key">The key of the value to update.</param> |
| | | 138 | | /// <param name="update">The function to update the value relative to the key.</param> |
| | | 139 | | /// <returns> |
| | | 140 | | /// (<typeparamref name="T"/> OldValue, <typeparamref name="T"/> NewValue)<br/> |
| | | 141 | | /// - <typeparamref name="T"/> OldValue: the value relative tothe key before to the update<br/> |
| | | 142 | | /// - <typeparamref name="T"/> NewValue: the value relative tothe key after to the update |
| | | 143 | | /// </returns> |
| | | 144 | | public static (T OldValue, T NewValue) Update<T, TKey>(this IMap<T, TKey> map, TKey key, Func<T, T> update) => |
| | 0 | 145 | | map.Update<T, TKey, SFunc<T, T>>(key, update); |
| | | 146 | | |
| | | 147 | | /// <summary>Adds or updates the value at the given key.</summary> |
| | | 148 | | /// <typeparam name="T">The type of values in the map.</typeparam> |
| | | 149 | | /// <typeparam name="TKey">The type of keys in the map.</typeparam> |
| | | 150 | | /// <param name="map">The map to add or update the value in.</param> |
| | | 151 | | /// <param name="key">The key of the value to add or update.</param> |
| | | 152 | | /// <param name="value">The value to add if not already present.</param> |
| | | 153 | | /// <param name="update">The function to update the value if present.</param> |
| | | 154 | | /// <returns> |
| | | 155 | | /// (<see cref="bool"/> Existed, <typeparamref name="T"/> OldValue)<br/> |
| | | 156 | | /// - <see cref="bool"/> Existed: true if the key was already in the map<br/> |
| | | 157 | | /// - <typeparamref name="T"/> OldValue: the value relative tothe key before to the update if it existed or default |
| | | 158 | | /// </returns> |
| | | 159 | | public static (bool Existed, T? OldValue) AddOrUpdate<T, TKey>(this IMap<T, TKey> map, TKey key, T value, Func<T, T> u |
| | 0 | 160 | | map.AddOrUpdate<T, TKey, SFunc<T, T>>(key, value, update); |
| | | 161 | | |
| | | 162 | | /// <summary>Updates a value in the map the relative key exists.</summary> |
| | | 163 | | /// <typeparam name="T">The type of values in the map.</typeparam> |
| | | 164 | | /// <typeparam name="TKey">The type of keys in the map.</typeparam> |
| | | 165 | | /// <typeparam name="TUpdate">The type of function to update the value.</typeparam> |
| | | 166 | | /// <param name="map">The map to update the value in.</param> |
| | | 167 | | /// <param name="key">The key of the value to update.</param> |
| | | 168 | | /// <param name="update">The function to update the value relative to the key.</param> |
| | | 169 | | /// <returns> |
| | | 170 | | /// (<typeparamref name="T"/> OldValue, <typeparamref name="T"/> NewValue)<br/> |
| | | 171 | | /// - <typeparamref name="T"/> OldValue: the value relative tothe key before to the update<br/> |
| | | 172 | | /// - <typeparamref name="T"/> NewValue: the value relative tothe key after to the update |
| | | 173 | | /// </returns> |
| | | 174 | | public static (T OldValue, T NewValue) Update<T, TKey, TUpdate>(this IMap<T, TKey> map, TKey key, TUpdate update = def |
| | | 175 | | where TUpdate : struct, IFunc<T, T> |
| | 0 | 176 | | { |
| | 0 | 177 | | var (success, exception, oldValue, newValue) = map.TryUpdate(key, update); |
| | 0 | 178 | | if (!success) |
| | 0 | 179 | | { |
| | 0 | 180 | | throw exception ?? new ArgumentException($"{nameof(Update)} failed but the {nameof(exception)} is null"); |
| | | 181 | | } |
| | 0 | 182 | | return (oldValue!, newValue!); |
| | 0 | 183 | | } |
| | | 184 | | |
| | | 185 | | /// <summary>Adds or updates the value at the given key.</summary> |
| | | 186 | | /// <typeparam name="T">The type of values in the map.</typeparam> |
| | | 187 | | /// <typeparam name="TKey">The type of keys in the map.</typeparam> |
| | | 188 | | /// <typeparam name="TUpdate">The type of function to update the value.</typeparam> |
| | | 189 | | /// <param name="map">The map to add or update the value in.</param> |
| | | 190 | | /// <param name="key">The key of the value to add or update.</param> |
| | | 191 | | /// <param name="value">The value to add if not already present.</param> |
| | | 192 | | /// <param name="update">The function to update the value if present.</param> |
| | | 193 | | /// <returns> |
| | | 194 | | /// - <see cref="bool"/> Existed: true if the key was already in the map<br/> |
| | | 195 | | /// - <typeparamref name="T"/> OldValue: the value relative tothe key before to the update if it existed or default |
| | | 196 | | /// </returns> |
| | | 197 | | public static (bool Existed, T? OldValue) AddOrUpdate<T, TKey, TUpdate>(this IMap<T, TKey> map, TKey key, T value, TUp |
| | | 198 | | where TUpdate : struct, IFunc<T, T> |
| | 70 | 199 | | { |
| | 70 | 200 | | var (success, exception, existed, oldValue) = map.TryAddOrUpdate(key, value, update); |
| | 70 | 201 | | if (!success) |
| | 0 | 202 | | { |
| | 0 | 203 | | throw exception ?? new ArgumentException($"{nameof(AddOrUpdate)} failed but the {nameof(exception)} is null"); |
| | | 204 | | } |
| | 70 | 205 | | return (existed!.Value, oldValue); |
| | 70 | 206 | | } |
| | | 207 | | |
| | | 208 | | /// <summary>Tries to update a value in the map the relative key exists.</summary> |
| | | 209 | | /// <typeparam name="T">The type of values in the map.</typeparam> |
| | | 210 | | /// <typeparam name="TKey">The type of keys in the map.</typeparam> |
| | | 211 | | /// <param name="map">The map to update the value in.</param> |
| | | 212 | | /// <param name="key">The key of the value to update.</param> |
| | | 213 | | /// <param name="update">The function to update the value relative to the key.</param> |
| | | 214 | | /// <returns> |
| | | 215 | | /// - <see cref="bool"/> Success: true if the key was found or false if not<br/> |
| | | 216 | | /// - <see cref="Exception"/>? Exception: the exception that occured if the update failed<br/> |
| | | 217 | | /// - <typeparamref name="T"/>? OldValue: the value if the key was found or default if not<br/> |
| | | 218 | | /// - <typeparamref name="T"/>? NewValue: the value if the key was found or default if not |
| | | 219 | | /// </returns> |
| | | 220 | | public static (bool Success, Exception? Exception, T? OldValue, T? NewValue) TryUpdate<T, TKey>(this IMap<T, TKey> map |
| | 0 | 221 | | { |
| | 0 | 222 | | if (update is null) throw new ArgumentNullException(nameof(update)); |
| | 0 | 223 | | return map.TryUpdate<SFunc<T, T>>(key, update); |
| | 0 | 224 | | } |
| | | 225 | | |
| | | 226 | | /// <summary>Tries to add or update the value at the given key.</summary> |
| | | 227 | | /// <typeparam name="T">The type of values in the map.</typeparam> |
| | | 228 | | /// <typeparam name="TKey">The type of keys in the map.</typeparam> |
| | | 229 | | /// <param name="map">The map to add or update the value in.</param> |
| | | 230 | | /// <param name="key">The key of the value to add or update.</param> |
| | | 231 | | /// <param name="value">The value to add if not already present.</param> |
| | | 232 | | /// <param name="update">The function to update the value if present.</param> |
| | | 233 | | /// <returns> |
| | | 234 | | /// - <see cref="bool"/> Success: true if the value was added or updated or false if not.<br/> |
| | | 235 | | /// - <see cref="Exception"/>? Exception: the exception that occured if the add or update failed<br/> |
| | | 236 | | /// - <see cref="bool"/>? Existed: true if the key-value pair was added or updated or false<br/> |
| | | 237 | | /// - <typeparamref name="T"/>? OldValue: the previous value if the key existed before the add or update operation |
| | | 238 | | /// </returns> |
| | | 239 | | public static (bool Success, Exception? Exception, bool? Existed, T? OldValue) TryAddOrUpdate<T, TKey>(this IMap<T, TK |
| | 0 | 240 | | { |
| | 0 | 241 | | if (update is null) throw new ArgumentNullException(nameof(update)); |
| | 0 | 242 | | return map.TryAddOrUpdate<SFunc<T, T>>(key, value, update); |
| | 0 | 243 | | } |
| | | 244 | | |
| | | 245 | | /// <summary>Adds a value to a map by key.</summary> |
| | | 246 | | /// <typeparam name="T">The type of values in the map.</typeparam> |
| | | 247 | | /// <typeparam name="TKey">The type of keys in the map.</typeparam> |
| | | 248 | | /// <param name="map">The map to add the value to.</param> |
| | | 249 | | /// <param name="key">The key of the value to get.</param> |
| | | 250 | | /// <param name="value">The value to add to the map.</param> |
| | | 251 | | public static void Add<T, TKey>(this IMap<T, TKey> map, TKey key, T value) |
| | 400135 | 252 | | { |
| | 400135 | 253 | | var (success, exception) = map.TryAdd(key, value); |
| | 400135 | 254 | | if (!success) |
| | 6 | 255 | | { |
| | 6 | 256 | | throw exception ?? new ArgumentException($"{nameof(Add)} failed but the {nameof(exception)} is null"); |
| | | 257 | | } |
| | 400129 | 258 | | } |
| | | 259 | | |
| | | 260 | | /// <summary>Sets a value in a map relative to a key.</summary> |
| | | 261 | | /// <typeparam name="T">The type of the value.</typeparam> |
| | | 262 | | /// <typeparam name="TKey">The type of the key.</typeparam> |
| | | 263 | | /// <param name="map">The map to set the value in.</param> |
| | | 264 | | /// <param name="key">The key.</param> |
| | | 265 | | /// <param name="value">The value.</param> |
| | | 266 | | /// <returns> |
| | | 267 | | /// (<see cref="bool"/> Existed, <typeparamref name="T"/> OldValue)<br/> |
| | | 268 | | /// - <see cref="bool"/> Existed: true if the key was already in the map<br/> |
| | | 269 | | /// - <typeparamref name="T"/> OldValue: the value relative tothe key before to the update if it existed or default |
| | | 270 | | /// </returns> |
| | | 271 | | public static (bool Existed, T? OldValue) Set<T, TKey>(this IMap<T, TKey> map, TKey key, T value) |
| | 201210 | 272 | | { |
| | 201210 | 273 | | var (success, exception, existed, oldValue) = map.TrySet(key, value); |
| | 201210 | 274 | | if (!success) |
| | 0 | 275 | | { |
| | 0 | 276 | | throw exception ?? new ArgumentException($"{nameof(Set)} failed but the {nameof(exception)} is null"); |
| | | 277 | | } |
| | 201210 | 278 | | return (existed!.Value, oldValue); |
| | 201210 | 279 | | } |
| | | 280 | | |
| | | 281 | | /// <summary>Gets a value in a map relative to a key.</summary> |
| | | 282 | | /// <typeparam name="T">The type of the value.</typeparam> |
| | | 283 | | /// <typeparam name="TKey">The type of the key.</typeparam> |
| | | 284 | | /// <param name="map">The map to set the value in.</param> |
| | | 285 | | /// <param name="key">The key.</param> |
| | | 286 | | /// <returns>The value relative to the key.</returns> |
| | | 287 | | public static T Get<T, TKey>(this IMap<T, TKey> map, TKey key) |
| | 400198 | 288 | | { |
| | 400198 | 289 | | var (success, exception, value) = map.TryGet(key); |
| | 400198 | 290 | | if (!success) |
| | 1 | 291 | | { |
| | 1 | 292 | | throw exception ?? new ArgumentException($"{nameof(Get)} failed but the {nameof(exception)} is null"); |
| | | 293 | | } |
| | 400197 | 294 | | return value!; |
| | 400197 | 295 | | } |
| | | 296 | | |
| | | 297 | | /// <summary>Performs a function on every key in a map.</summary> |
| | | 298 | | /// <typeparam name="T">The type of values in the map.</typeparam> |
| | | 299 | | /// <typeparam name="TKey">The type of keys in the map.</typeparam> |
| | | 300 | | /// <param name="map">The map to traverse the keys of.</param> |
| | | 301 | | /// <param name="step">The step function to perform on every key.</param> |
| | | 302 | | public static void Keys<T, TKey>(this IMap<T, TKey> map, Action<TKey> step) |
| | 31 | 303 | | { |
| | 31 | 304 | | if (step is null) throw new ArgumentNullException(nameof(step)); |
| | 31 | 305 | | map.Keys<T, TKey, SAction<TKey>>(step); |
| | 31 | 306 | | } |
| | | 307 | | |
| | | 308 | | /// <summary>Performs a function on every key in a map.</summary> |
| | | 309 | | /// <typeparam name="T">The type of values in the map.</typeparam> |
| | | 310 | | /// <typeparam name="TKey">The type of keys in the map.</typeparam> |
| | | 311 | | /// <typeparam name="TStep">The type of step function to perform on every key.</typeparam> |
| | | 312 | | /// <param name="map">The map to traverse the keys of.</param> |
| | | 313 | | /// <param name="step">The step function to perform on every key.</param> |
| | | 314 | | public static void Keys<T, TKey, TStep>(this IMap<T, TKey> map, TStep step = default) |
| | | 315 | | where TStep : struct, IAction<TKey> => |
| | 31 | 316 | | map.KeysBreak<StepBreakFromAction<TKey, TStep>>(step); |
| | | 317 | | |
| | | 318 | | /// <summary>Performs a function on every key in a map.</summary> |
| | | 319 | | /// <typeparam name="T">The type of values in the map.</typeparam> |
| | | 320 | | /// <typeparam name="TKey">The type of keys in the map.</typeparam> |
| | | 321 | | /// <param name="map">The map to traverse the keys of.</param> |
| | | 322 | | /// <param name="step">The step function to perform on every key.</param> |
| | | 323 | | /// <returns>The status of the traversal.</returns> |
| | | 324 | | public static StepStatus KeysBreak<T, TKey>(this IMap<T, TKey> map, Func<TKey, StepStatus> step) |
| | 0 | 325 | | { |
| | 0 | 326 | | if (step is null) throw new ArgumentNullException(nameof(step)); |
| | 0 | 327 | | return map.KeysBreak<SFunc<TKey, StepStatus>>(step); |
| | 0 | 328 | | } |
| | | 329 | | |
| | | 330 | | /// <summary>Performs a function on every pair in a map.</summary> |
| | | 331 | | /// <typeparam name="T">The type of values in the map.</typeparam> |
| | | 332 | | /// <typeparam name="TKey">The type of keys in the map.</typeparam> |
| | | 333 | | /// <param name="map">The map to traverse the pairs of.</param> |
| | | 334 | | /// <param name="step">The step function to perform on every pair.</param> |
| | | 335 | | public static void Pairs<T, TKey>(this IMap<T, TKey> map, Action<(T Value, TKey Key)> step) |
| | 5 | 336 | | { |
| | 5 | 337 | | if (step is null) throw new ArgumentNullException(nameof(step)); |
| | 5 | 338 | | map.Pairs<T, TKey, SAction<(T Value, TKey Key)>>(step); |
| | 5 | 339 | | } |
| | | 340 | | |
| | | 341 | | /// <summary>Performs a function on every pair in a map.</summary> |
| | | 342 | | /// <typeparam name="T">The type of values in the map.</typeparam> |
| | | 343 | | /// <typeparam name="TKey">The type of keys in the map.</typeparam> |
| | | 344 | | /// <typeparam name="TStep">The type of step function to perform on every pair.</typeparam> |
| | | 345 | | /// <param name="map">The map to traverse the pairs of.</param> |
| | | 346 | | /// <param name="step">The step function to perform on every pair.</param> |
| | | 347 | | public static void Pairs<T, TKey, TStep>(this IMap<T, TKey> map, TStep step = default) |
| | | 348 | | where TStep : struct, IAction<(T Value, TKey Key)> => |
| | 5 | 349 | | map.PairsBreak<StepBreakFromAction<(T Value, TKey Key), TStep>>(step); |
| | | 350 | | |
| | | 351 | | /// <summary>Performs a function on every pair in a map.</summary> |
| | | 352 | | /// <typeparam name="T">The type of values in the map.</typeparam> |
| | | 353 | | /// <typeparam name="TKey">The type of keys in the map.</typeparam> |
| | | 354 | | /// <param name="map">The map to traverse the pairs of.</param> |
| | | 355 | | /// <param name="step">The step function to perform on every pair.</param> |
| | | 356 | | /// <returns>The status of the traversal.</returns> |
| | | 357 | | public static StepStatus PairsBreak<T, TKey>(this IMap<T, TKey> map, Func<(T Value, TKey Key), StepStatus> step) |
| | 1 | 358 | | { |
| | 1 | 359 | | if (step is null) throw new ArgumentNullException(nameof(step)); |
| | 1 | 360 | | return map.PairsBreak<SFunc<(T Value, TKey Key), StepStatus>>(step); |
| | 1 | 361 | | } |
| | | 362 | | |
| | | 363 | | #endregion |
| | | 364 | | } |
| | | 365 | | |
| | | 366 | | /// <summary>Static helpers.</summary> |
| | | 367 | | public static class MapHashLinked |
| | | 368 | | { |
| | | 369 | | #region Extension Methods |
| | | 370 | | |
| | | 371 | | /// <summary>Constructs a new <see cref="MapHashLinked{T, K, TEquate, THash}"/>.</summary> |
| | | 372 | | /// <typeparam name="T">The type of values stored in this data structure.</typeparam> |
| | | 373 | | /// <typeparam name="TKey">The type of keys used to look up values.</typeparam> |
| | | 374 | | /// <param name="equate">The function for comparing <typeparamref name="T"/> values for equality.</param> |
| | | 375 | | /// <param name="hash">The function for hashing <typeparamref name="T"/> values.</param> |
| | | 376 | | /// <returns>The new constructed <see cref="MapHashLinked{T, K, TEquate, THash}"/>.</returns> |
| | | 377 | | public static MapHashLinked<T, TKey, SFunc<TKey, TKey, bool>, SFunc<TKey, int>> New<T, TKey>( |
| | | 378 | | Func<TKey, TKey, bool>? equate = null, |
| | | 379 | | Func<TKey, int>? hash = null) => |
| | | 380 | | new(equate ?? Equate, hash ?? Hash); |
| | | 381 | | |
| | | 382 | | #endregion |
| | | 383 | | } |
| | | 384 | | |
| | | 385 | | /// <summary>An unsorted structure of unique items.</summary> |
| | | 386 | | /// <typeparam name="T">The generic type of the structure.</typeparam> |
| | | 387 | | /// <typeparam name="TKey">The generic key type of this map.</typeparam> |
| | | 388 | | /// <typeparam name="TEquate">The type of function for quality checking <typeparamref name="TKey"/> values.</typeparam> |
| | | 389 | | /// <typeparam name="THash">The type of function for hashing <typeparamref name="TKey"/> values.</typeparam> |
| | | 390 | | public class MapHashLinked<T, TKey, TEquate, THash> : IMap<T, TKey>, |
| | | 391 | | ICloneable<MapHashLinked<T, TKey, TEquate, THash>>, |
| | | 392 | | DataStructure.IEquating<TKey, TEquate>, |
| | | 393 | | DataStructure.IHashing<TKey, THash> |
| | | 394 | | where TEquate : struct, IFunc<TKey, TKey, bool> |
| | | 395 | | where THash : struct, IFunc<TKey, int> |
| | | 396 | | { |
| | | 397 | | internal const float _maxLoadFactor = .7f; |
| | | 398 | | internal const float _minLoadFactor = .3f; |
| | | 399 | | |
| | | 400 | | internal TEquate _equate; |
| | | 401 | | internal THash _hash; |
| | | 402 | | internal Node?[] _table; |
| | | 403 | | internal int _count; |
| | | 404 | | |
| | | 405 | | #region Nested Types |
| | | 406 | | |
| | | 407 | | internal class Node |
| | | 408 | | { |
| | | 409 | | internal TKey Key; |
| | | 410 | | internal T Value; |
| | | 411 | | internal Node? Next; |
| | | 412 | | |
| | | 413 | | internal Node(T value, TKey key, Node? next = null) |
| | | 414 | | { |
| | | 415 | | Value = value; |
| | | 416 | | Key = key; |
| | | 417 | | Next = next; |
| | | 418 | | } |
| | | 419 | | } |
| | | 420 | | |
| | | 421 | | #endregion |
| | | 422 | | |
| | | 423 | | #region Constructors |
| | | 424 | | |
| | | 425 | | /// <summary>Constructs a new <see cref="MapHashLinked{T, K, TEquate, THash}"/>.</summary> |
| | | 426 | | /// <param name="equate">The function for quality checking <typeparamref name="TKey"/> values.</param> |
| | | 427 | | /// <param name="hash">The function for hashing <typeparamref name="TKey"/> values.</param> |
| | | 428 | | /// <param name="expectedCount">The expected count of the map.</param> |
| | | 429 | | public MapHashLinked( |
| | | 430 | | TEquate equate = default, |
| | | 431 | | THash hash = default, |
| | | 432 | | int? expectedCount = null) |
| | | 433 | | { |
| | | 434 | | if (expectedCount.HasValue && expectedCount.Value > 0) |
| | | 435 | | { |
| | | 436 | | int tableSize = (int)(expectedCount.Value * (1 / _maxLoadFactor)); |
| | | 437 | | while (!IsPrime(tableSize)) |
| | | 438 | | { |
| | | 439 | | tableSize++; |
| | | 440 | | } |
| | | 441 | | _table = new Node[tableSize]; |
| | | 442 | | } |
| | | 443 | | else |
| | | 444 | | { |
| | | 445 | | _table = new Node[2]; |
| | | 446 | | } |
| | | 447 | | _equate = equate; |
| | | 448 | | _hash = hash; |
| | | 449 | | _count = 0; |
| | | 450 | | } |
| | | 451 | | |
| | | 452 | | /// <summary>This constructor is for cloning purposes.</summary> |
| | | 453 | | /// <param name="map">The map to clone.</param> |
| | | 454 | | internal MapHashLinked(MapHashLinked<T, TKey, TEquate, THash> map) |
| | | 455 | | { |
| | | 456 | | _equate = map._equate; |
| | | 457 | | _hash = map._hash; |
| | | 458 | | _table = (Node[])map._table.Clone(); |
| | | 459 | | _count = map._count; |
| | | 460 | | } |
| | | 461 | | |
| | | 462 | | #endregion |
| | | 463 | | |
| | | 464 | | #region Properties |
| | | 465 | | |
| | | 466 | | /// <summary>The current size of the hashed table.</summary> |
| | | 467 | | public int TableSize => _table.Length; |
| | | 468 | | |
| | | 469 | | /// <inheritdoc/> |
| | | 470 | | public int Count => _count; |
| | | 471 | | |
| | | 472 | | /// <inheritdoc/> |
| | | 473 | | public THash Hash => _hash; |
| | | 474 | | |
| | | 475 | | /// <inheritdoc/> |
| | | 476 | | public TEquate Equate => _equate; |
| | | 477 | | |
| | | 478 | | /// <summary>Gets the value of a specified key.</summary> |
| | | 479 | | /// <param name="key">The key to get the value of.</param> |
| | | 480 | | /// <returns>The value of the key.</returns> |
| | | 481 | | public T this[TKey key] { get => this.Get(key); set => this.Set(key, value); } |
| | | 482 | | |
| | | 483 | | #endregion |
| | | 484 | | |
| | | 485 | | #region Methods |
| | | 486 | | |
| | | 487 | | internal int GetLocation(TKey key) => (_hash.Invoke(key) & int.MaxValue) % _table.Length; |
| | | 488 | | |
| | | 489 | | /// <inheritdoc/> |
| | | 490 | | public (bool Success, Exception? Exception) TryAdd(TKey key, T value) |
| | | 491 | | { |
| | | 492 | | int location = GetLocation(key); |
| | | 493 | | for (Node? node = _table[location]; node is not null; node = node.Next) |
| | | 494 | | { |
| | | 495 | | if (_equate.Invoke(node.Key, key)) |
| | | 496 | | { |
| | | 497 | | return (false, new ArgumentException("Attempting to add a duplicate key to a map.", nameof(key))); |
| | | 498 | | } |
| | | 499 | | } |
| | | 500 | | _table[location] = new Node(value: value, key: key, next: _table[location]); |
| | | 501 | | _count++; |
| | | 502 | | if (_count > _table.Length * _maxLoadFactor) |
| | | 503 | | { |
| | | 504 | | float tableSizeFloat = (_count * 2) * (1 / _maxLoadFactor); |
| | | 505 | | if (tableSizeFloat <= int.MaxValue) |
| | | 506 | | { |
| | | 507 | | int tableSize = (int)tableSizeFloat; |
| | | 508 | | while (!IsPrime(tableSize)) |
| | | 509 | | { |
| | | 510 | | tableSize++; |
| | | 511 | | } |
| | | 512 | | Resize(tableSize); |
| | | 513 | | } |
| | | 514 | | } |
| | | 515 | | return (true, null); |
| | | 516 | | } |
| | | 517 | | |
| | | 518 | | /// <inheritdoc/> |
| | | 519 | | public (bool Success, Exception? Exception, bool? Existed, T? OldValue) TryAddOrUpdate<TUpdate>(TKey key, T value, TUp |
| | | 520 | | where TUpdate : struct, IFunc<T, T> |
| | | 521 | | { |
| | | 522 | | int location = GetLocation(key); |
| | | 523 | | for (Node? node = _table[location]; node is not null; node = node.Next) |
| | | 524 | | { |
| | | 525 | | if (_equate.Invoke(node.Key, key)) |
| | | 526 | | { |
| | | 527 | | T oldValue = node.Value; |
| | | 528 | | node.Value = update.Invoke(node.Value); |
| | | 529 | | return (true, null, true, oldValue); |
| | | 530 | | } |
| | | 531 | | } |
| | | 532 | | _table[location] = new Node( |
| | | 533 | | value: value, |
| | | 534 | | key: key, |
| | | 535 | | next: _table[location]); |
| | | 536 | | _count++; |
| | | 537 | | if (_count > _table.Length * _maxLoadFactor) |
| | | 538 | | { |
| | | 539 | | float tableSizeFloat = (_count * 2) * (1 / _maxLoadFactor); |
| | | 540 | | if (tableSizeFloat <= int.MaxValue) |
| | | 541 | | { |
| | | 542 | | int tableSize = (int)tableSizeFloat; |
| | | 543 | | while (!IsPrime(tableSize)) |
| | | 544 | | { |
| | | 545 | | tableSize++; |
| | | 546 | | } |
| | | 547 | | Resize(tableSize); |
| | | 548 | | } |
| | | 549 | | } |
| | | 550 | | return (true, null, false, default); |
| | | 551 | | } |
| | | 552 | | |
| | | 553 | | /// <inheritdoc/> |
| | | 554 | | public (bool Success, Exception? Exception, bool? Removed, T? OldValue, T? NewValue) TryRemoveOrUpdate<TRemovePredicat |
| | | 555 | | where TRemovePredicate : struct, IFunc<T, bool> |
| | | 556 | | where TUpdate : struct, IFunc<T, T> |
| | | 557 | | { |
| | | 558 | | int location = GetLocation(key); |
| | | 559 | | |
| | | 560 | | for (Node? node = _table[location], previous = null; node is not null; previous = node, node = node.Next) |
| | | 561 | | { |
| | | 562 | | if (_equate.Invoke(node.Key, key)) |
| | | 563 | | { |
| | | 564 | | if (removePredicate.Invoke(node.Value)) |
| | | 565 | | { |
| | | 566 | | if (previous is null) |
| | | 567 | | { |
| | | 568 | | _table[location] = node.Next; |
| | | 569 | | } |
| | | 570 | | else |
| | | 571 | | { |
| | | 572 | | previous.Next = node.Next; |
| | | 573 | | } |
| | | 574 | | _count--; |
| | | 575 | | return (true, null, true, node.Value, default); |
| | | 576 | | } |
| | | 577 | | else |
| | | 578 | | { |
| | | 579 | | T oldValue = node.Value; |
| | | 580 | | node.Value = update.Invoke(node.Value); |
| | | 581 | | return (true, null, false, oldValue, node.Value); |
| | | 582 | | } |
| | | 583 | | } |
| | | 584 | | } |
| | | 585 | | return (false, new ArgumentException(paramName: nameof(key), message: "key not found"), default, default, default); |
| | | 586 | | } |
| | | 587 | | |
| | | 588 | | /// <inheritdoc/> |
| | | 589 | | public (bool Success, Exception? Exception, T? OldValue, T? NewValue) TryUpdate<TUpdate>(TKey key, TUpdate update = de |
| | | 590 | | where TUpdate : struct, IFunc<T, T> |
| | | 591 | | { |
| | | 592 | | int location = GetLocation(key); |
| | | 593 | | for (Node? node = _table[location]; node is not null; node = node.Next) |
| | | 594 | | { |
| | | 595 | | if (_equate.Invoke(node.Key, key)) |
| | | 596 | | { |
| | | 597 | | T oldValue = node.Value; |
| | | 598 | | node.Value = update.Invoke(node.Value); |
| | | 599 | | return (true, null, oldValue, node.Value); |
| | | 600 | | } |
| | | 601 | | } |
| | | 602 | | return (false, new ArgumentException(paramName: nameof(key), message: "key not found"), default, default); |
| | | 603 | | } |
| | | 604 | | |
| | | 605 | | /// <inheritdoc/> |
| | | 606 | | public (bool Success, Exception? Exception, T? Value) TryGet(TKey key) |
| | | 607 | | { |
| | | 608 | | int location = GetLocation(key); |
| | | 609 | | for (Node? node = _table[location]; node is not null; node = node.Next) |
| | | 610 | | { |
| | | 611 | | if (_equate.Invoke(node.Key, key)) |
| | | 612 | | { |
| | | 613 | | return (true, null, node.Value); |
| | | 614 | | } |
| | | 615 | | } |
| | | 616 | | return (false, new ArgumentException("Attempting to get a value from the map that has not been added.", nameof(key)) |
| | | 617 | | } |
| | | 618 | | |
| | | 619 | | /// <inheritdoc/> |
| | | 620 | | public (bool Success, Exception? Exception, bool? Existed, T? OldValue) TrySet(TKey key, T value) |
| | | 621 | | { |
| | | 622 | | int location = GetLocation(key); |
| | | 623 | | for (Node? node = _table[location]; node is not null; node = node.Next) |
| | | 624 | | { |
| | | 625 | | if (_equate.Invoke(node.Key, key)) |
| | | 626 | | { |
| | | 627 | | T oldValue = node.Value; |
| | | 628 | | node.Value = value; |
| | | 629 | | return (true, null, true, oldValue); |
| | | 630 | | } |
| | | 631 | | } |
| | | 632 | | _table[location] = new Node( |
| | | 633 | | value: value, |
| | | 634 | | key: key, |
| | | 635 | | next: _table[location]); |
| | | 636 | | _count++; |
| | | 637 | | if (_count > _table.Length * _maxLoadFactor) |
| | | 638 | | { |
| | | 639 | | float tableSizeFloat = (_count * 2) * (1 / _maxLoadFactor); |
| | | 640 | | if (tableSizeFloat <= int.MaxValue) |
| | | 641 | | { |
| | | 642 | | int tableSize = (int)tableSizeFloat; |
| | | 643 | | while (!IsPrime(tableSize)) |
| | | 644 | | { |
| | | 645 | | tableSize++; |
| | | 646 | | } |
| | | 647 | | Resize(tableSize); |
| | | 648 | | } |
| | | 649 | | } |
| | | 650 | | return (true, null, false, default); |
| | | 651 | | } |
| | | 652 | | |
| | | 653 | | /// <inheritdoc/> |
| | | 654 | | public (bool Success, Exception? Exception) TryRemove(TKey key) |
| | | 655 | | { |
| | | 656 | | var (success, exception) = TryRemoveWithoutTrim(key); |
| | | 657 | | if (!success) |
| | | 658 | | { |
| | | 659 | | return (false, exception); |
| | | 660 | | } |
| | | 661 | | else if (_table.Length > 2 && _count < _table.Length * _minLoadFactor) |
| | | 662 | | { |
| | | 663 | | int tableSize = (int)(_count * (1 / _maxLoadFactor)); |
| | | 664 | | while (!IsPrime(tableSize)) |
| | | 665 | | { |
| | | 666 | | tableSize++; |
| | | 667 | | } |
| | | 668 | | Resize(tableSize); |
| | | 669 | | } |
| | | 670 | | return (true, null); |
| | | 671 | | } |
| | | 672 | | |
| | | 673 | | /// <summary>Tries to remove a keyed value without shrinking the hash table.</summary> |
| | | 674 | | /// <param name="key">The key of the value to remove.</param> |
| | | 675 | | /// <returns>True if the removal was successful for false if not.</returns> |
| | | 676 | | public (bool Success, Exception? Exception) TryRemoveWithoutTrim(TKey key) |
| | | 677 | | { |
| | | 678 | | int location = GetLocation(key); |
| | | 679 | | for (Node? node = _table[location], previous = null; node is not null; previous = node, node = node.Next) |
| | | 680 | | { |
| | | 681 | | if (_equate.Invoke(node.Key, key)) |
| | | 682 | | { |
| | | 683 | | if (previous is null) |
| | | 684 | | { |
| | | 685 | | _table[location] = node.Next; |
| | | 686 | | } |
| | | 687 | | else |
| | | 688 | | { |
| | | 689 | | previous.Next = node.Next; |
| | | 690 | | } |
| | | 691 | | _count--; |
| | | 692 | | return (true, null); |
| | | 693 | | } |
| | | 694 | | } |
| | | 695 | | return (false, new ArgumentException("Attempting to remove a key that is no in a map.", nameof(key))); |
| | | 696 | | } |
| | | 697 | | |
| | | 698 | | internal void Resize(int tableSize) |
| | | 699 | | { |
| | | 700 | | if (tableSize == _table.Length) |
| | | 701 | | { |
| | | 702 | | return; |
| | | 703 | | } |
| | | 704 | | |
| | | 705 | | Node?[] temp = _table; |
| | | 706 | | _table = new Node[tableSize]; |
| | | 707 | | |
| | | 708 | | for (int i = 0; i < temp.Length; i++) |
| | | 709 | | { |
| | | 710 | | for (Node? node = temp[i]; node is not null; node = temp[i]) |
| | | 711 | | { |
| | | 712 | | temp[i] = node.Next; |
| | | 713 | | |
| | | 714 | | int hashCode = _hash.Invoke(node.Key); |
| | | 715 | | int location = (hashCode & int.MaxValue) % _table.Length; |
| | | 716 | | |
| | | 717 | | node.Next = _table[location]; |
| | | 718 | | _table[location] = node; |
| | | 719 | | } |
| | | 720 | | } |
| | | 721 | | } |
| | | 722 | | |
| | | 723 | | /// <summary> |
| | | 724 | | /// Trims the table to an appropriate size based on the current count.<br/> |
| | | 725 | | /// Runtime: O(n), Ω(1) |
| | | 726 | | /// </summary> |
| | | 727 | | public void Trim() |
| | | 728 | | { |
| | | 729 | | int tableSize = _count; |
| | | 730 | | while (!IsPrime(tableSize)) |
| | | 731 | | { |
| | | 732 | | tableSize++; |
| | | 733 | | } |
| | | 734 | | Resize(tableSize); |
| | | 735 | | } |
| | | 736 | | |
| | | 737 | | /// <inheritdoc/> |
| | | 738 | | public MapHashLinked<T, TKey, TEquate, THash> Clone() => new(this); |
| | | 739 | | |
| | | 740 | | /// <inheritdoc/> |
| | | 741 | | public bool Contains(TKey key) |
| | | 742 | | { |
| | | 743 | | int location = GetLocation(key); |
| | | 744 | | for (Node? node = _table[location]; node is not null; node = node.Next) |
| | | 745 | | { |
| | | 746 | | if (_equate.Invoke(node.Key, key)) |
| | | 747 | | { |
| | | 748 | | return true; |
| | | 749 | | } |
| | | 750 | | } |
| | | 751 | | return false; |
| | | 752 | | } |
| | | 753 | | |
| | | 754 | | /// <inheritdoc/> |
| | | 755 | | public void Clear() |
| | | 756 | | { |
| | | 757 | | _table = new Node[2]; |
| | | 758 | | _count = 0; |
| | | 759 | | } |
| | | 760 | | |
| | | 761 | | /// <inheritdoc/> |
| | | 762 | | public StepStatus StepperBreak<TStep>(TStep step = default) |
| | | 763 | | where TStep : struct, IFunc<T, StepStatus> |
| | | 764 | | { |
| | | 765 | | for (int i = 0; i < _table.Length; i++) |
| | | 766 | | { |
| | | 767 | | for (Node? node = _table[i]; node is not null; node = node.Next) |
| | | 768 | | { |
| | | 769 | | if (step.Invoke(node.Value) is Break) |
| | | 770 | | { |
| | | 771 | | return Break; |
| | | 772 | | } |
| | | 773 | | } |
| | | 774 | | } |
| | | 775 | | return Continue; |
| | | 776 | | } |
| | | 777 | | |
| | | 778 | | /// <inheritdoc/> |
| | | 779 | | public StepStatus KeysBreak<TStep>(TStep step = default) |
| | | 780 | | where TStep : struct, IFunc<TKey, StepStatus> |
| | | 781 | | { |
| | | 782 | | for (int i = 0; i < _table.Length; i++) |
| | | 783 | | { |
| | | 784 | | for (Node? node = _table[i]; node is not null; node = node.Next) |
| | | 785 | | { |
| | | 786 | | if (step.Invoke(node.Key) is Break) |
| | | 787 | | { |
| | | 788 | | return Break; |
| | | 789 | | } |
| | | 790 | | } |
| | | 791 | | } |
| | | 792 | | return Continue; |
| | | 793 | | } |
| | | 794 | | |
| | | 795 | | /// <inheritdoc/> |
| | | 796 | | public System.Collections.Generic.IEnumerable<TKey> GetKeys() |
| | | 797 | | { |
| | | 798 | | for (int i = 0; i < _table.Length; i++) |
| | | 799 | | { |
| | | 800 | | for (Node? node = _table[i]; node is not null; node = node.Next) |
| | | 801 | | { |
| | | 802 | | yield return node.Key; |
| | | 803 | | } |
| | | 804 | | } |
| | | 805 | | } |
| | | 806 | | |
| | | 807 | | /// <inheritdoc/> |
| | | 808 | | public StepStatus PairsBreak<TStep>(TStep step = default) |
| | | 809 | | where TStep : struct, IFunc<(T Value, TKey Key), StepStatus> |
| | | 810 | | { |
| | | 811 | | for (int i = 0; i < _table.Length; i++) |
| | | 812 | | { |
| | | 813 | | for (Node? node = _table[i]; node is not null; node = node.Next) |
| | | 814 | | { |
| | | 815 | | if (step.Invoke((node.Value, node.Key)) is Break) |
| | | 816 | | { |
| | | 817 | | return Break; |
| | | 818 | | } |
| | | 819 | | } |
| | | 820 | | } |
| | | 821 | | return Continue; |
| | | 822 | | } |
| | | 823 | | |
| | | 824 | | /// <inheritdoc/> |
| | | 825 | | public System.Collections.Generic.IEnumerable<(T Value, TKey Key)> GetPairs() |
| | | 826 | | { |
| | | 827 | | for (int i = 0; i < _table.Length; i++) |
| | | 828 | | { |
| | | 829 | | for (Node? node = _table[i]; node is not null; node = node.Next) |
| | | 830 | | { |
| | | 831 | | yield return (node.Value, node.Key); |
| | | 832 | | } |
| | | 833 | | } |
| | | 834 | | } |
| | | 835 | | |
| | | 836 | | System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator() => GetEnumerator(); |
| | | 837 | | |
| | | 838 | | /// <inheritdoc/> |
| | | 839 | | public System.Collections.Generic.IEnumerator<T> GetEnumerator() |
| | | 840 | | { |
| | | 841 | | for (int i = 0; i < _table.Length; i++) |
| | | 842 | | { |
| | | 843 | | for (Node? node = _table[i]; node is not null; node = node.Next) |
| | | 844 | | { |
| | | 845 | | yield return node.Value; |
| | | 846 | | } |
| | | 847 | | } |
| | | 848 | | } |
| | | 849 | | |
| | | 850 | | /// <inheritdoc/> |
| | | 851 | | public T[] ToArray() |
| | | 852 | | { |
| | | 853 | | T[] array = new T[_count]; |
| | | 854 | | for (int i = 0, index = 0; i < _table.Length; i++) |
| | | 855 | | { |
| | | 856 | | for (Node? node = _table[i]; node is not null; node = node.Next) |
| | | 857 | | { |
| | | 858 | | array[index++] = node.Value; |
| | | 859 | | } |
| | | 860 | | } |
| | | 861 | | return array; |
| | | 862 | | } |
| | | 863 | | |
| | | 864 | | /// <inheritdoc/> |
| | | 865 | | public TKey[] KeysToArray() |
| | | 866 | | { |
| | | 867 | | TKey[] array = new TKey[_count]; |
| | | 868 | | for (int i = 0, index = 0; i < _table.Length; i++) |
| | | 869 | | { |
| | | 870 | | for (Node? node = _table[i]; node is not null; node = node.Next) |
| | | 871 | | { |
| | | 872 | | array[index++] = node.Key; |
| | | 873 | | } |
| | | 874 | | } |
| | | 875 | | return array; |
| | | 876 | | } |
| | | 877 | | |
| | | 878 | | /// <inheritdoc/> |
| | | 879 | | public (T Value, TKey Key)[] PairsToArray() |
| | | 880 | | { |
| | | 881 | | (T Value, TKey Key)[] array = new (T Value, TKey Key)[_count]; |
| | | 882 | | for (int i = 0, index = 0; i < _table.Length; i++) |
| | | 883 | | { |
| | | 884 | | for (Node? node = _table[i]; node is not null; node = node.Next) |
| | | 885 | | { |
| | | 886 | | array[index++] = (node.Value, node.Key); |
| | | 887 | | } |
| | | 888 | | } |
| | | 889 | | return array; |
| | | 890 | | } |
| | | 891 | | |
| | | 892 | | #endregion |
| | | 893 | | } |