35 lines
992 B
C#
35 lines
992 B
C#
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using System;
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namespace Microsoft.Extensions.Logging.Log4Net.AspNetCore.Scope
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{
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/// <summary>
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/// A <see cref="IExternalScopeProvider"/> that will not save nor return scopes.
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/// </summary>
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internal class NullScopeProvider : IExternalScopeProvider
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{
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/// <summary>
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/// The singleton instance that represents every <see cref="NullScopeProvider"/>.
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/// </summary>
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internal static NullScopeProvider Instance { get; } = new NullScopeProvider();
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/// <summary>
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/// Constructor that prevents external instantiation.
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/// </summary>
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private NullScopeProvider()
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{
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}
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/// <inheritdoc/>
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public void ForEachScope<TState>(Action<object, TState> callback, TState state)
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{
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// All scopes are null scopes so do nothing.
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}
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/// <inheritdoc/>
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public IDisposable Push(object state)
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{
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return NullScope.Instance;
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}
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}
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}
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