42 lines
1.5 KiB
C#
42 lines
1.5 KiB
C#
|
using System;
|
|||
|
|
|
|||
|
|
namespace Umbraco.Core.Collections
|
|||
|
|
{
|
|||
|
|
/// <summary>
|
|||
|
|
/// Represents a composite key of (string, string) for fast dictionaries.
|
|||
|
|
/// </summary>
|
|||
|
|
/// <remarks>
|
|||
|
|
/// <para>The string parts of the key are case-insensitive.</para>
|
|||
|
|
/// <para>Null is a valid value for both parts.</para>
|
|||
|
|
/// </remarks>
|
|||
|
|
public struct CompositeStringStringKey : IEquatable<CompositeStringStringKey>
|
|||
|
|
{
|
|||
|
|
private readonly string _key1;
|
|||
|
|
private readonly string _key2;
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Initializes a new instance of the <see cref="CompositeStringStringKey"/> struct.
|
|||
|
|
/// </summary>
|
|||
|
|
public CompositeStringStringKey(string key1, string key2)
|
|||
|
|
{
|
|||
|
|
_key1 = key1?.ToLowerInvariant() ?? "NULL";
|
|||
|
|
_key2 = key2?.ToLowerInvariant() ?? "NULL";
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public bool Equals(CompositeStringStringKey other)
|
|||
|
|
=> _key2 == other._key2 && _key1 == other._key1;
|
|||
|
|
|
|||
|
|
public override bool Equals(object obj)
|
|||
|
|
=> obj is CompositeStringStringKey other && _key2 == other._key2 && _key1 == other._key1;
|
|||
|
|
|
|||
|
|
public override int GetHashCode()
|
|||
|
|
=> _key2.GetHashCode() * 31 + _key1.GetHashCode();
|
|||
|
|
|
|||
|
|
public static bool operator ==(CompositeStringStringKey key1, CompositeStringStringKey key2)
|
|||
|
|
=> key1._key2 == key2._key2 && key1._key1 == key2._key1;
|
|||
|
|
|
|||
|
|
public static bool operator !=(CompositeStringStringKey key1, CompositeStringStringKey key2)
|
|||
|
|
=> key1._key2 != key2._key2 || key1._key1 != key2._key1;
|
|||
|
|
}
|
|||
|
|
}
|