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using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.VisualStudio.Utilities;
namespace Microsoft.VisualStudio.Text.Editor
{
/// <summary>
/// Represents a type-safe key for editor options.
/// </summary>
/// <typeparam name="T">The type of the option value.</typeparam>
public struct EditorOptionKey<T>
{
#region Private data
private string _name;
#endregion
/// <summary>
/// Initializes a new instance of <see cref="EditorOptionKey<T>"/>.
/// </summary>
/// <param name="name">The name of the option key.</param>
public EditorOptionKey(string name) { _name = name; }
/// <summary>
/// Gets the name of this key.
/// </summary>
public string Name { get { return _name; } }
#region Object overrides
/// <summary>
/// Determines whether two <see cref="EditorOptionKey<T>"/> objects are the same.
/// </summary>
/// <param name="obj">The object to be compared.</param>
/// <returns><c>true</c> if the objects are the same, otherwise <c>false</c>.</returns>
public override bool Equals(object obj)
{
if (obj is EditorOptionKey<T>)
{
EditorOptionKey<T> other = (EditorOptionKey<T>)obj;
return other.Name == this.Name;
}
return false;
}
/// <summary>
/// Gets the hash code for this object.
/// </summary>
/// <returns>The hash code.</returns>
public override int GetHashCode()
{
return this.Name.GetHashCode();
}
/// <summary>
/// Converts this object to a string.
/// </summary>
/// <returns>The name of the option.</returns>
public override string ToString()
{
return this.Name;
}
/// <summary>
/// Determines whether two instances of this type are the same.
/// </summary>
public static bool operator ==(EditorOptionKey<T> left, EditorOptionKey<T> right)
{
return left.Name == right.Name;
}
/// <summary>
/// Determines whether two instances of this type are different.
/// </summary>
public static bool operator !=(EditorOptionKey<T> left, EditorOptionKey<T> right)
{
return !(left == right);
}
#endregion
}
}
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