23 lines
537 B
C#
23 lines
537 B
C#
using System;
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using System.Collections.Concurrent;
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namespace LeafWeb.Core.Utility
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{
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public static class Memoizer
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{
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public static Func<A, R> ThreadsafeMemoize<A, R>(Func<A, R> f)
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{
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var cache = new ConcurrentDictionary<A, R>();
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return argument => cache.GetOrAdd(argument, f);
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}
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public static Func<A1, A2, R> ThreadsafeMemoize<A1, A2, R>(Func<A1, A2, R> f)
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{
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var cache = new ConcurrentDictionary<Tuple<A1, A2>, R>();
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return (a1, a2) => cache.GetOrAdd(Tuple.Create(a1, a2), t => f(t.Item1, t.Item2));
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}
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}
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}
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