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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
using System;
using System.Collections.Generic;
using Microsoft.CodeAnalysis.Text;
namespace Microsoft.CodeAnalysis.Diagnostics
{
/// <summary>
/// Provides custom values associated with <see cref="SourceText"/> instances using the given computeValue delegate.
/// </summary>
public sealed class SourceTextValueProvider<TValue>
{
internal AnalysisValueProvider<SourceText, TValue> CoreValueProvider { get; private set; }
/// <summary>
/// Provides custom values associated with <see cref="SourceText"/> instances using the given <paramref name="computeValue"/>.
/// </summary>
/// <param name="computeValue">Delegate to compute the value associated with a given <see cref="SourceText"/> instance.</param>
/// <param name="sourceTextComparer">Optional equality comparer to determine equivalent <see cref="SourceText"/> instances that have the same value.
/// If no comparer is provided, then <see cref="SourceTextComparer"/> is used by default.</param>
public SourceTextValueProvider(Func<SourceText, TValue> computeValue, IEqualityComparer<SourceText>? sourceTextComparer = null)
{
CoreValueProvider = new AnalysisValueProvider<SourceText, TValue>(computeValue, sourceTextComparer ?? SourceTextComparer.Instance);
}
}
}
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