Average.Generated.cs 28 KB

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  1. // Licensed to the .NET Foundation under one or more agreements.
  2. // The .NET Foundation licenses this file to you under the Apache 2.0 License.
  3. // See the LICENSE file in the project root for more information.
  4. using System.Collections.Generic;
  5. using System.Threading;
  6. using System.Threading.Tasks;
  7. namespace System.Linq
  8. {
  9. public static partial class AsyncEnumerable
  10. {
  11. public static Task<double> AverageAsync(this IAsyncEnumerable<int> source)
  12. {
  13. if (source == null)
  14. throw Error.ArgumentNull(nameof(source));
  15. return AverageCore(source, CancellationToken.None);
  16. }
  17. public static Task<double> AverageAsync(this IAsyncEnumerable<int> source, CancellationToken cancellationToken)
  18. {
  19. if (source == null)
  20. throw Error.ArgumentNull(nameof(source));
  21. return AverageCore(source, cancellationToken);
  22. }
  23. public static Task<double> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, int> selector)
  24. {
  25. if (source == null)
  26. throw Error.ArgumentNull(nameof(source));
  27. if (selector == null)
  28. throw Error.ArgumentNull(nameof(selector));
  29. return AverageCore(source, selector, CancellationToken.None);
  30. }
  31. public static Task<double> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, int> selector, CancellationToken cancellationToken)
  32. {
  33. if (source == null)
  34. throw Error.ArgumentNull(nameof(source));
  35. if (selector == null)
  36. throw Error.ArgumentNull(nameof(selector));
  37. return AverageCore(source, selector, cancellationToken);
  38. }
  39. public static Task<double> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, ValueTask<int>> selector)
  40. {
  41. if (source == null)
  42. throw Error.ArgumentNull(nameof(source));
  43. if (selector == null)
  44. throw Error.ArgumentNull(nameof(selector));
  45. return AverageCore(source, selector, CancellationToken.None);
  46. }
  47. public static Task<double> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, ValueTask<int>> selector, CancellationToken cancellationToken)
  48. {
  49. if (source == null)
  50. throw Error.ArgumentNull(nameof(source));
  51. if (selector == null)
  52. throw Error.ArgumentNull(nameof(selector));
  53. return AverageCore(source, selector, cancellationToken);
  54. }
  55. #if !NO_DEEP_CANCELLATION
  56. public static Task<double> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, CancellationToken, ValueTask<int>> selector, CancellationToken cancellationToken)
  57. {
  58. if (source == null)
  59. throw Error.ArgumentNull(nameof(source));
  60. if (selector == null)
  61. throw Error.ArgumentNull(nameof(selector));
  62. return AverageCore(source, selector, cancellationToken);
  63. }
  64. #endif
  65. public static Task<double> AverageAsync(this IAsyncEnumerable<long> source)
  66. {
  67. if (source == null)
  68. throw Error.ArgumentNull(nameof(source));
  69. return AverageCore(source, CancellationToken.None);
  70. }
  71. public static Task<double> AverageAsync(this IAsyncEnumerable<long> source, CancellationToken cancellationToken)
  72. {
  73. if (source == null)
  74. throw Error.ArgumentNull(nameof(source));
  75. return AverageCore(source, cancellationToken);
  76. }
  77. public static Task<double> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, long> selector)
  78. {
  79. if (source == null)
  80. throw Error.ArgumentNull(nameof(source));
  81. if (selector == null)
  82. throw Error.ArgumentNull(nameof(selector));
  83. return AverageCore(source, selector, CancellationToken.None);
  84. }
  85. public static Task<double> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, long> selector, CancellationToken cancellationToken)
  86. {
  87. if (source == null)
  88. throw Error.ArgumentNull(nameof(source));
  89. if (selector == null)
  90. throw Error.ArgumentNull(nameof(selector));
  91. return AverageCore(source, selector, cancellationToken);
  92. }
  93. public static Task<double> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, ValueTask<long>> selector)
  94. {
  95. if (source == null)
  96. throw Error.ArgumentNull(nameof(source));
  97. if (selector == null)
  98. throw Error.ArgumentNull(nameof(selector));
  99. return AverageCore(source, selector, CancellationToken.None);
  100. }
  101. public static Task<double> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, ValueTask<long>> selector, CancellationToken cancellationToken)
  102. {
  103. if (source == null)
  104. throw Error.ArgumentNull(nameof(source));
  105. if (selector == null)
  106. throw Error.ArgumentNull(nameof(selector));
  107. return AverageCore(source, selector, cancellationToken);
  108. }
  109. #if !NO_DEEP_CANCELLATION
  110. public static Task<double> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, CancellationToken, ValueTask<long>> selector, CancellationToken cancellationToken)
  111. {
  112. if (source == null)
  113. throw Error.ArgumentNull(nameof(source));
  114. if (selector == null)
  115. throw Error.ArgumentNull(nameof(selector));
  116. return AverageCore(source, selector, cancellationToken);
  117. }
  118. #endif
  119. public static Task<float> AverageAsync(this IAsyncEnumerable<float> source)
  120. {
  121. if (source == null)
  122. throw Error.ArgumentNull(nameof(source));
  123. return AverageCore(source, CancellationToken.None);
  124. }
  125. public static Task<float> AverageAsync(this IAsyncEnumerable<float> source, CancellationToken cancellationToken)
  126. {
  127. if (source == null)
  128. throw Error.ArgumentNull(nameof(source));
  129. return AverageCore(source, cancellationToken);
  130. }
  131. public static Task<float> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, float> selector)
  132. {
  133. if (source == null)
  134. throw Error.ArgumentNull(nameof(source));
  135. if (selector == null)
  136. throw Error.ArgumentNull(nameof(selector));
  137. return AverageCore(source, selector, CancellationToken.None);
  138. }
  139. public static Task<float> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, float> selector, CancellationToken cancellationToken)
  140. {
  141. if (source == null)
  142. throw Error.ArgumentNull(nameof(source));
  143. if (selector == null)
  144. throw Error.ArgumentNull(nameof(selector));
  145. return AverageCore(source, selector, cancellationToken);
  146. }
  147. public static Task<float> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, ValueTask<float>> selector)
  148. {
  149. if (source == null)
  150. throw Error.ArgumentNull(nameof(source));
  151. if (selector == null)
  152. throw Error.ArgumentNull(nameof(selector));
  153. return AverageCore(source, selector, CancellationToken.None);
  154. }
  155. public static Task<float> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, ValueTask<float>> selector, CancellationToken cancellationToken)
  156. {
  157. if (source == null)
  158. throw Error.ArgumentNull(nameof(source));
  159. if (selector == null)
  160. throw Error.ArgumentNull(nameof(selector));
  161. return AverageCore(source, selector, cancellationToken);
  162. }
  163. #if !NO_DEEP_CANCELLATION
  164. public static Task<float> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, CancellationToken, ValueTask<float>> selector, CancellationToken cancellationToken)
  165. {
  166. if (source == null)
  167. throw Error.ArgumentNull(nameof(source));
  168. if (selector == null)
  169. throw Error.ArgumentNull(nameof(selector));
  170. return AverageCore(source, selector, cancellationToken);
  171. }
  172. #endif
  173. public static Task<double> AverageAsync(this IAsyncEnumerable<double> source)
  174. {
  175. if (source == null)
  176. throw Error.ArgumentNull(nameof(source));
  177. return AverageCore(source, CancellationToken.None);
  178. }
  179. public static Task<double> AverageAsync(this IAsyncEnumerable<double> source, CancellationToken cancellationToken)
  180. {
  181. if (source == null)
  182. throw Error.ArgumentNull(nameof(source));
  183. return AverageCore(source, cancellationToken);
  184. }
  185. public static Task<double> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, double> selector)
  186. {
  187. if (source == null)
  188. throw Error.ArgumentNull(nameof(source));
  189. if (selector == null)
  190. throw Error.ArgumentNull(nameof(selector));
  191. return AverageCore(source, selector, CancellationToken.None);
  192. }
  193. public static Task<double> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, double> selector, CancellationToken cancellationToken)
  194. {
  195. if (source == null)
  196. throw Error.ArgumentNull(nameof(source));
  197. if (selector == null)
  198. throw Error.ArgumentNull(nameof(selector));
  199. return AverageCore(source, selector, cancellationToken);
  200. }
  201. public static Task<double> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, ValueTask<double>> selector)
  202. {
  203. if (source == null)
  204. throw Error.ArgumentNull(nameof(source));
  205. if (selector == null)
  206. throw Error.ArgumentNull(nameof(selector));
  207. return AverageCore(source, selector, CancellationToken.None);
  208. }
  209. public static Task<double> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, ValueTask<double>> selector, CancellationToken cancellationToken)
  210. {
  211. if (source == null)
  212. throw Error.ArgumentNull(nameof(source));
  213. if (selector == null)
  214. throw Error.ArgumentNull(nameof(selector));
  215. return AverageCore(source, selector, cancellationToken);
  216. }
  217. #if !NO_DEEP_CANCELLATION
  218. public static Task<double> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, CancellationToken, ValueTask<double>> selector, CancellationToken cancellationToken)
  219. {
  220. if (source == null)
  221. throw Error.ArgumentNull(nameof(source));
  222. if (selector == null)
  223. throw Error.ArgumentNull(nameof(selector));
  224. return AverageCore(source, selector, cancellationToken);
  225. }
  226. #endif
  227. public static Task<decimal> AverageAsync(this IAsyncEnumerable<decimal> source)
  228. {
  229. if (source == null)
  230. throw Error.ArgumentNull(nameof(source));
  231. return AverageCore(source, CancellationToken.None);
  232. }
  233. public static Task<decimal> AverageAsync(this IAsyncEnumerable<decimal> source, CancellationToken cancellationToken)
  234. {
  235. if (source == null)
  236. throw Error.ArgumentNull(nameof(source));
  237. return AverageCore(source, cancellationToken);
  238. }
  239. public static Task<decimal> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, decimal> selector)
  240. {
  241. if (source == null)
  242. throw Error.ArgumentNull(nameof(source));
  243. if (selector == null)
  244. throw Error.ArgumentNull(nameof(selector));
  245. return AverageCore(source, selector, CancellationToken.None);
  246. }
  247. public static Task<decimal> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, decimal> selector, CancellationToken cancellationToken)
  248. {
  249. if (source == null)
  250. throw Error.ArgumentNull(nameof(source));
  251. if (selector == null)
  252. throw Error.ArgumentNull(nameof(selector));
  253. return AverageCore(source, selector, cancellationToken);
  254. }
  255. public static Task<decimal> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, ValueTask<decimal>> selector)
  256. {
  257. if (source == null)
  258. throw Error.ArgumentNull(nameof(source));
  259. if (selector == null)
  260. throw Error.ArgumentNull(nameof(selector));
  261. return AverageCore(source, selector, CancellationToken.None);
  262. }
  263. public static Task<decimal> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, ValueTask<decimal>> selector, CancellationToken cancellationToken)
  264. {
  265. if (source == null)
  266. throw Error.ArgumentNull(nameof(source));
  267. if (selector == null)
  268. throw Error.ArgumentNull(nameof(selector));
  269. return AverageCore(source, selector, cancellationToken);
  270. }
  271. #if !NO_DEEP_CANCELLATION
  272. public static Task<decimal> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, CancellationToken, ValueTask<decimal>> selector, CancellationToken cancellationToken)
  273. {
  274. if (source == null)
  275. throw Error.ArgumentNull(nameof(source));
  276. if (selector == null)
  277. throw Error.ArgumentNull(nameof(selector));
  278. return AverageCore(source, selector, cancellationToken);
  279. }
  280. #endif
  281. public static Task<double?> AverageAsync(this IAsyncEnumerable<int?> source)
  282. {
  283. if (source == null)
  284. throw Error.ArgumentNull(nameof(source));
  285. return AverageCore(source, CancellationToken.None);
  286. }
  287. public static Task<double?> AverageAsync(this IAsyncEnumerable<int?> source, CancellationToken cancellationToken)
  288. {
  289. if (source == null)
  290. throw Error.ArgumentNull(nameof(source));
  291. return AverageCore(source, cancellationToken);
  292. }
  293. public static Task<double?> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, int?> selector)
  294. {
  295. if (source == null)
  296. throw Error.ArgumentNull(nameof(source));
  297. if (selector == null)
  298. throw Error.ArgumentNull(nameof(selector));
  299. return AverageCore(source, selector, CancellationToken.None);
  300. }
  301. public static Task<double?> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, int?> selector, CancellationToken cancellationToken)
  302. {
  303. if (source == null)
  304. throw Error.ArgumentNull(nameof(source));
  305. if (selector == null)
  306. throw Error.ArgumentNull(nameof(selector));
  307. return AverageCore(source, selector, cancellationToken);
  308. }
  309. public static Task<double?> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, ValueTask<int?>> selector)
  310. {
  311. if (source == null)
  312. throw Error.ArgumentNull(nameof(source));
  313. if (selector == null)
  314. throw Error.ArgumentNull(nameof(selector));
  315. return AverageCore(source, selector, CancellationToken.None);
  316. }
  317. public static Task<double?> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, ValueTask<int?>> selector, CancellationToken cancellationToken)
  318. {
  319. if (source == null)
  320. throw Error.ArgumentNull(nameof(source));
  321. if (selector == null)
  322. throw Error.ArgumentNull(nameof(selector));
  323. return AverageCore(source, selector, cancellationToken);
  324. }
  325. #if !NO_DEEP_CANCELLATION
  326. public static Task<double?> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, CancellationToken, ValueTask<int?>> selector, CancellationToken cancellationToken)
  327. {
  328. if (source == null)
  329. throw Error.ArgumentNull(nameof(source));
  330. if (selector == null)
  331. throw Error.ArgumentNull(nameof(selector));
  332. return AverageCore(source, selector, cancellationToken);
  333. }
  334. #endif
  335. public static Task<double?> AverageAsync(this IAsyncEnumerable<long?> source)
  336. {
  337. if (source == null)
  338. throw Error.ArgumentNull(nameof(source));
  339. return AverageCore(source, CancellationToken.None);
  340. }
  341. public static Task<double?> AverageAsync(this IAsyncEnumerable<long?> source, CancellationToken cancellationToken)
  342. {
  343. if (source == null)
  344. throw Error.ArgumentNull(nameof(source));
  345. return AverageCore(source, cancellationToken);
  346. }
  347. public static Task<double?> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, long?> selector)
  348. {
  349. if (source == null)
  350. throw Error.ArgumentNull(nameof(source));
  351. if (selector == null)
  352. throw Error.ArgumentNull(nameof(selector));
  353. return AverageCore(source, selector, CancellationToken.None);
  354. }
  355. public static Task<double?> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, long?> selector, CancellationToken cancellationToken)
  356. {
  357. if (source == null)
  358. throw Error.ArgumentNull(nameof(source));
  359. if (selector == null)
  360. throw Error.ArgumentNull(nameof(selector));
  361. return AverageCore(source, selector, cancellationToken);
  362. }
  363. public static Task<double?> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, ValueTask<long?>> selector)
  364. {
  365. if (source == null)
  366. throw Error.ArgumentNull(nameof(source));
  367. if (selector == null)
  368. throw Error.ArgumentNull(nameof(selector));
  369. return AverageCore(source, selector, CancellationToken.None);
  370. }
  371. public static Task<double?> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, ValueTask<long?>> selector, CancellationToken cancellationToken)
  372. {
  373. if (source == null)
  374. throw Error.ArgumentNull(nameof(source));
  375. if (selector == null)
  376. throw Error.ArgumentNull(nameof(selector));
  377. return AverageCore(source, selector, cancellationToken);
  378. }
  379. #if !NO_DEEP_CANCELLATION
  380. public static Task<double?> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, CancellationToken, ValueTask<long?>> selector, CancellationToken cancellationToken)
  381. {
  382. if (source == null)
  383. throw Error.ArgumentNull(nameof(source));
  384. if (selector == null)
  385. throw Error.ArgumentNull(nameof(selector));
  386. return AverageCore(source, selector, cancellationToken);
  387. }
  388. #endif
  389. public static Task<float?> AverageAsync(this IAsyncEnumerable<float?> source)
  390. {
  391. if (source == null)
  392. throw Error.ArgumentNull(nameof(source));
  393. return AverageCore(source, CancellationToken.None);
  394. }
  395. public static Task<float?> AverageAsync(this IAsyncEnumerable<float?> source, CancellationToken cancellationToken)
  396. {
  397. if (source == null)
  398. throw Error.ArgumentNull(nameof(source));
  399. return AverageCore(source, cancellationToken);
  400. }
  401. public static Task<float?> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, float?> selector)
  402. {
  403. if (source == null)
  404. throw Error.ArgumentNull(nameof(source));
  405. if (selector == null)
  406. throw Error.ArgumentNull(nameof(selector));
  407. return AverageCore(source, selector, CancellationToken.None);
  408. }
  409. public static Task<float?> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, float?> selector, CancellationToken cancellationToken)
  410. {
  411. if (source == null)
  412. throw Error.ArgumentNull(nameof(source));
  413. if (selector == null)
  414. throw Error.ArgumentNull(nameof(selector));
  415. return AverageCore(source, selector, cancellationToken);
  416. }
  417. public static Task<float?> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, ValueTask<float?>> selector)
  418. {
  419. if (source == null)
  420. throw Error.ArgumentNull(nameof(source));
  421. if (selector == null)
  422. throw Error.ArgumentNull(nameof(selector));
  423. return AverageCore(source, selector, CancellationToken.None);
  424. }
  425. public static Task<float?> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, ValueTask<float?>> selector, CancellationToken cancellationToken)
  426. {
  427. if (source == null)
  428. throw Error.ArgumentNull(nameof(source));
  429. if (selector == null)
  430. throw Error.ArgumentNull(nameof(selector));
  431. return AverageCore(source, selector, cancellationToken);
  432. }
  433. #if !NO_DEEP_CANCELLATION
  434. public static Task<float?> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, CancellationToken, ValueTask<float?>> selector, CancellationToken cancellationToken)
  435. {
  436. if (source == null)
  437. throw Error.ArgumentNull(nameof(source));
  438. if (selector == null)
  439. throw Error.ArgumentNull(nameof(selector));
  440. return AverageCore(source, selector, cancellationToken);
  441. }
  442. #endif
  443. public static Task<double?> AverageAsync(this IAsyncEnumerable<double?> source)
  444. {
  445. if (source == null)
  446. throw Error.ArgumentNull(nameof(source));
  447. return AverageCore(source, CancellationToken.None);
  448. }
  449. public static Task<double?> AverageAsync(this IAsyncEnumerable<double?> source, CancellationToken cancellationToken)
  450. {
  451. if (source == null)
  452. throw Error.ArgumentNull(nameof(source));
  453. return AverageCore(source, cancellationToken);
  454. }
  455. public static Task<double?> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, double?> selector)
  456. {
  457. if (source == null)
  458. throw Error.ArgumentNull(nameof(source));
  459. if (selector == null)
  460. throw Error.ArgumentNull(nameof(selector));
  461. return AverageCore(source, selector, CancellationToken.None);
  462. }
  463. public static Task<double?> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, double?> selector, CancellationToken cancellationToken)
  464. {
  465. if (source == null)
  466. throw Error.ArgumentNull(nameof(source));
  467. if (selector == null)
  468. throw Error.ArgumentNull(nameof(selector));
  469. return AverageCore(source, selector, cancellationToken);
  470. }
  471. public static Task<double?> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, ValueTask<double?>> selector)
  472. {
  473. if (source == null)
  474. throw Error.ArgumentNull(nameof(source));
  475. if (selector == null)
  476. throw Error.ArgumentNull(nameof(selector));
  477. return AverageCore(source, selector, CancellationToken.None);
  478. }
  479. public static Task<double?> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, ValueTask<double?>> selector, CancellationToken cancellationToken)
  480. {
  481. if (source == null)
  482. throw Error.ArgumentNull(nameof(source));
  483. if (selector == null)
  484. throw Error.ArgumentNull(nameof(selector));
  485. return AverageCore(source, selector, cancellationToken);
  486. }
  487. #if !NO_DEEP_CANCELLATION
  488. public static Task<double?> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, CancellationToken, ValueTask<double?>> selector, CancellationToken cancellationToken)
  489. {
  490. if (source == null)
  491. throw Error.ArgumentNull(nameof(source));
  492. if (selector == null)
  493. throw Error.ArgumentNull(nameof(selector));
  494. return AverageCore(source, selector, cancellationToken);
  495. }
  496. #endif
  497. public static Task<decimal?> AverageAsync(this IAsyncEnumerable<decimal?> source)
  498. {
  499. if (source == null)
  500. throw Error.ArgumentNull(nameof(source));
  501. return AverageCore(source, CancellationToken.None);
  502. }
  503. public static Task<decimal?> AverageAsync(this IAsyncEnumerable<decimal?> source, CancellationToken cancellationToken)
  504. {
  505. if (source == null)
  506. throw Error.ArgumentNull(nameof(source));
  507. return AverageCore(source, cancellationToken);
  508. }
  509. public static Task<decimal?> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, decimal?> selector)
  510. {
  511. if (source == null)
  512. throw Error.ArgumentNull(nameof(source));
  513. if (selector == null)
  514. throw Error.ArgumentNull(nameof(selector));
  515. return AverageCore(source, selector, CancellationToken.None);
  516. }
  517. public static Task<decimal?> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, decimal?> selector, CancellationToken cancellationToken)
  518. {
  519. if (source == null)
  520. throw Error.ArgumentNull(nameof(source));
  521. if (selector == null)
  522. throw Error.ArgumentNull(nameof(selector));
  523. return AverageCore(source, selector, cancellationToken);
  524. }
  525. public static Task<decimal?> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, ValueTask<decimal?>> selector)
  526. {
  527. if (source == null)
  528. throw Error.ArgumentNull(nameof(source));
  529. if (selector == null)
  530. throw Error.ArgumentNull(nameof(selector));
  531. return AverageCore(source, selector, CancellationToken.None);
  532. }
  533. public static Task<decimal?> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, ValueTask<decimal?>> selector, CancellationToken cancellationToken)
  534. {
  535. if (source == null)
  536. throw Error.ArgumentNull(nameof(source));
  537. if (selector == null)
  538. throw Error.ArgumentNull(nameof(selector));
  539. return AverageCore(source, selector, cancellationToken);
  540. }
  541. #if !NO_DEEP_CANCELLATION
  542. public static Task<decimal?> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, CancellationToken, ValueTask<decimal?>> selector, CancellationToken cancellationToken)
  543. {
  544. if (source == null)
  545. throw Error.ArgumentNull(nameof(source));
  546. if (selector == null)
  547. throw Error.ArgumentNull(nameof(selector));
  548. return AverageCore(source, selector, cancellationToken);
  549. }
  550. #endif
  551. }
  552. }