21 lines
896 B
C#
21 lines
896 B
C#
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using System;
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using System.Collections.Generic;
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using System.Linq;
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namespace FruityFoundation.Base.Structures;
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public static class EnumerableExtensions
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{
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public static IEnumerable<T> ConditionalConcat<T>(this IEnumerable<T> enumerable, bool condition, IEnumerable<T> second) =>
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!condition ? enumerable : enumerable.Concat(second);
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public static IEnumerable<T> ConditionalAppend<T>(this IEnumerable<T> enumerable, bool condition, T second) =>
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condition ? enumerable.Append(second) : enumerable;
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public static IEnumerable<T> ConditionalWhere<T>(this IEnumerable<T> enumerable, bool condition, Func<T, bool> pred) =>
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!condition ? enumerable : enumerable.Where(pred);
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public static IEnumerable<TOutput> Choose<TInput, TOutput>(this IEnumerable<TInput> enumerable, Func<TInput, Maybe<TOutput>> chooser) =>
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enumerable.Select(chooser).Where(x => x.HasValue).Select(x => x.Value);
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}
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