35 lines
1.0 KiB
C#
35 lines
1.0 KiB
C#
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using System;
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using System.Collections.Generic;
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namespace Sinvo.EplanHpD.Plugin.WPFUI.Utils
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{
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public class LambdaComparer<T> : IEqualityComparer<T>
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{
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private readonly Func<T, T, bool> _lambdaComparer;
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private readonly Func<T, int> _lambdaHash;
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public LambdaComparer(Func<T, T, bool> lambdaComparer)
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: this(lambdaComparer, EqualityComparer<T>.Default.GetHashCode)
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{
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}
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public LambdaComparer(Func<T, T, bool> lambdaComparer, Func<T, int> lambdaHash)
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{
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if (lambdaComparer == null)
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throw new ArgumentNullException("lambdaComparer");
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if (lambdaHash == null)
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throw new ArgumentNullException("lambdaHash");
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_lambdaComparer = lambdaComparer;
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_lambdaHash = lambdaHash;
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}
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public bool Equals(T x, T y)
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{
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return _lambdaComparer(x, y);
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}
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public int GetHashCode(T obj)
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{
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return _lambdaHash(obj);
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}
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}
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}
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