35 lines
1.1 KiB
C#
35 lines
1.1 KiB
C#
// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
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#if NO_RXINTERFACES
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namespace System
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{
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/// <summary>
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/// Supports push-style iteration over an observable sequence.
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/// </summary>
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#if !NO_VARIANCE
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public interface IObserver<in T>
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#else
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public interface IObserver<T>
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#endif
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{
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/// <summary>
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/// Notifies the observer of a new element in the sequence.
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/// </summary>
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/// <param name="value">Next element in the sequence.</param>
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void OnNext(T value);
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/// <summary>
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/// Notifies the observer that an exception has occurred.
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/// </summary>
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/// <param name="error">The error that has occurred.</param>
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void OnError(Exception error);
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/// <summary>
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/// Notifies the observer of the end of the sequence.
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/// </summary>
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void OnCompleted();
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}
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}
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#elif !WINDOWSPHONE7 // TypeForwardedTo is not presen on windows phone 7 so we can't really target
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[assembly: System.Runtime.CompilerServices.TypeForwardedTo(typeof(System.IObserver<>))]
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#endif |