Louis Seubert
2a5c134d9f
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92 lines
No EOL
4.4 KiB
C#
92 lines
No EOL
4.4 KiB
C#
// Copyright (c) The Geekeey Authors
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// SPDX-License-Identifier: EUPL-1.2
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using System.Diagnostics.CodeAnalysis;
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using System.Runtime.CompilerServices;
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namespace Geekeey.Extensions.Result;
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/// <summary>
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/// Extensions for or relating to <see cref="Result{T}"/>.
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/// </summary>
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[ExcludeFromCodeCoverage]
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public static partial class Extensions
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{
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#region Task<Result<T>>
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/// <summary>
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/// Maps the success value of the result object of the completed task using a mapping function, or does nothing if
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/// the result object of the completed task is a failure.
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/// </summary>
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/// <param name="result">A task object retunring a result object when completing.</param>
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/// <param name="func">The function used to map the success value.</param>
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/// <typeparam name="T">The type of the object inside the result returned by the task.</typeparam>
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/// <typeparam name="TNew">The type of the new value.</typeparam>
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/// <returns>A new result containing either the mapped success value or the failure value of the original
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/// result.</returns>
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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// ReSharper disable once InconsistentNaming
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public static async ValueTask<Result<TNew>> Map<T, TNew>(this Task<Result<T>> result,
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Func<T, TNew> func)
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=> (await result).Map(func);
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/// <inheritdoc cref="Map{T,TNew}(System.Threading.Tasks.Task{Geekeey.Extensions.Result.Result{T}},System.Func{T,TNew})"/>
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static async Task<Result<TNew>> MapAsync<T, TNew>(this Task<Result<T>> result,
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Func<T, ValueTask<TNew>> func)
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=> await (await result).MapAsync(func);
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/// <summary>
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/// Maps the success value of the result object of the completed task to a new result using a mapping function, or
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/// does nothing if the result object of the completed task is a failure.
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/// </summary>
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/// <param name="result">A task object retunring a result object when completing.</param>
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/// <param name="func">The function used to map the success value.</param>
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/// <typeparam name="T">The type of the object inside the result returned by the task.</typeparam>
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/// <typeparam name="TNew">The type of the new value.</typeparam>
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/// <returns>A new result containing either the mapped success value or the failure value of the original
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/// result.</returns>
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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// ReSharper disable once InconsistentNaming
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public static async Task<Result<TNew>> Then<T, TNew>(this Task<Result<T>> result,
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Func<T, Result<TNew>> func)
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=> (await result).Then(func);
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/// <inheritdoc cref="Then{T,TNew}(System.Threading.Tasks.Task{Geekeey.Extensions.Result.Result{T}},System.Func{T,Geekeey.Extensions.Result.Result{TNew}})"/>
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static async Task<Result<TNew>> ThenAsync<T, TNew>(this Task<Result<T>> result,
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Func<T, ValueTask<Result<TNew>>> func)
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=> await (await result).ThenAsync(func);
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#endregion
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#region ValueTask<Result<T>>
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/// <inheritdoc cref="Map{T,TNew}(System.Threading.Tasks.Task{Geekeey.Extensions.Result.Result{T}},System.Func{T,TNew})"/>
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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// ReSharper disable once InconsistentNaming
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public static async Task<Result<TNew>> Map<T, TNew>(this ValueTask<Result<T>> result,
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Func<T, TNew> func)
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=> (await result).Map(func);
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/// <inheritdoc cref="Map{T,TNew}(System.Threading.Tasks.Task{Geekeey.Extensions.Result.Result{T}},System.Func{T,TNew})"/>
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static async ValueTask<Result<TNew>> MapAsync<T, TNew>(this ValueTask<Result<T>> result,
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Func<T, ValueTask<TNew>> func)
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=> await (await result).MapAsync(func);
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/// <inheritdoc cref="Then{T,TNew}(System.Threading.Tasks.Task{Geekeey.Extensions.Result.Result{T}},System.Func{T,Geekeey.Extensions.Result.Result{TNew}})"/>
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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// ReSharper disable once InconsistentNaming
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public static async ValueTask<Result<TNew>> Then<T, TNew>(this ValueTask<Result<T>> result,
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Func<T, Result<TNew>> func)
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=> (await result).Then(func);
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/// <inheritdoc cref="Then{T,TNew}(System.Threading.Tasks.Task{Geekeey.Extensions.Result.Result{T}},System.Func{T,Geekeey.Extensions.Result.Result{TNew}})"/>
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static async ValueTask<Result<TNew>> ThenAsync<T, TNew>(this ValueTask<Result<T>> result,
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Func<T, ValueTask<Result<TNew>>> func)
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=> await (await result).ThenAsync(func);
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#endregion
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} |