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/* ****************************************************************************
*
* Copyright (c) Microsoft Corporation.
*
* This source code is subject to terms and conditions of the Apache License, Version 2.0. A
* copy of the license can be found in the License.html file at the root of this distribution. If
* you cannot locate the Apache License, Version 2.0, please send an email to
* dlr@microsoft.com. By using this source code in any fashion, you are agreeing to be bound
* by the terms of the Apache License, Version 2.0.
*
* You must not remove this notice, or any other, from this software.
*
*
* ***************************************************************************/
namespace System.Runtime.CompilerServices {
/// <summary>
/// Holds a reference to a value.
/// </summary>
/// <typeparam name="T">The type of the value that the <see cref = "StrongBox{T}"></see> references.</typeparam>
public class StrongBox<T> : IStrongBox {
/// <summary>
/// Gets the strongly typed value associated with the <see cref = "StrongBox{T}"></see>
/// <remarks>This is explicitly exposed as a field instead of a property to enable loading the address of the field.</remarks>
/// </summary>
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1051:DoNotDeclareVisibleInstanceFields")]
public T Value;
/// <summary>
/// Initializes a new StrongBox which can receive a value when used in a reference call.
/// </summary>
public StrongBox() {
}
/// <summary>
/// Initializes a new <see cref = "StrongBox{T}"></see> with the specified value.
/// </summary>
/// <param name="value">A value that the <see cref = "StrongBox{T}"></see> will reference.</param>
public StrongBox(T value) {
Value = value;
}
object IStrongBox.Value {
get {
return Value;
}
set {
Value = (T)value;
}
}
}
/// <summary>
/// Defines a property for accessing the value that an object references.
/// </summary>
public interface IStrongBox {
/// <summary>
/// Gets or sets the value the object references.
/// </summary>
object Value { get; set; }
}
}
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