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using System;
using System.Diagnostics;
using System.Globalization;
using LibGit2Sharp.Core;
using LibGit2Sharp.Core.Handles;
namespace LibGit2Sharp
{
/// <summary>
/// A note, attached to a given <see cref="GitObject"/>.
/// </summary>
[DebuggerDisplay("{DebuggerDisplay,nq}")]
public class Note : IEquatable<Note>
{
/// <summary>
/// Needed for mocking purposes.
/// </summary>
protected Note()
{ }
private Note(ObjectId blobId, string message, ObjectId targetObjectId, string @namespace)
{
BlobId = blobId;
Namespace = @namespace;
Message = message;
TargetObjectId = targetObjectId;
}
/// <summary>
/// The <see cref="ObjectId"/> of the blob containing the note message.
/// </summary>
public virtual ObjectId BlobId { get; private set; }
/// <summary>
/// The message.
/// </summary>
public virtual string Message { get; private set; }
/// <summary>
/// The namespace with which this note is associated.
/// <para>This is the abbreviated namespace (e.g.: commits), and not the canonical namespace (e.g.: refs/notes/commits).</para>
/// </summary>
public virtual string Namespace { get; private set; }
/// <summary>
/// The <see cref="ObjectId"/> of the target object.
/// </summary>
public virtual ObjectId TargetObjectId { get; private set; }
internal static Note BuildFromPtr(NoteSafeHandle note, string @namespace, ObjectId targetObjectId)
{
ObjectId oid = Proxy.git_note_id(note);
string message = Proxy.git_note_message(note);
return new Note(oid, message, targetObjectId, @namespace);
}
private static readonly LambdaEqualityHelper<Note> equalityHelper =
new LambdaEqualityHelper<Note>(x => x.BlobId, x => x.TargetObjectId, x => x.Namespace);
/// <summary>
/// Determines whether the specified <see cref="Object"/> is equal to the current <see cref="Note"/>.
/// </summary>
/// <param name="obj">The <see cref="Object"/> to compare with the current <see cref="Note"/>.</param>
/// <returns>True if the specified <see cref="Object"/> is equal to the current <see cref="Note"/>; otherwise, false.</returns>
public override bool Equals(object obj)
{
return Equals(obj as Note);
}
/// <summary>
/// Determines whether the specified <see cref="Note"/> is equal to the current <see cref="Note"/>.
/// </summary>
/// <param name="other">The <see cref="Note"/> to compare with the current <see cref="Note"/>.</param>
/// <returns>True if the specified <see cref="Note"/> is equal to the current <see cref="Note"/>; otherwise, false.</returns>
public bool Equals(Note other)
{
return equalityHelper.Equals(this, other);
}
/// <summary>
/// Returns the hash code for this instance.
/// </summary>
/// <returns>A 32-bit signed integer hash code.</returns>
public override int GetHashCode()
{
return equalityHelper.GetHashCode(this);
}
/// <summary>
/// Tests if two <see cref="Note"/> are equal.
/// </summary>
/// <param name="left">First <see cref="Note"/> to compare.</param>
/// <param name="right">Second <see cref="Note"/> to compare.</param>
/// <returns>True if the two objects are equal; false otherwise.</returns>
public static bool operator ==(Note left, Note right)
{
return Equals(left, right);
}
/// <summary>
/// Tests if two <see cref="Note"/> are different.
/// </summary>
/// <param name="left">First <see cref="Note"/> to compare.</param>
/// <param name="right">Second <see cref="Note"/> to compare.</param>
/// <returns>True if the two objects are different; false otherwise.</returns>
public static bool operator !=(Note left, Note right)
{
return !Equals(left, right);
}
private string DebuggerDisplay
{
get
{
return string.Format(CultureInfo.InvariantCulture,
"Target \"{0}\", Namespace \"{1}\": {2}",
TargetObjectId.ToString(7), Namespace, Message);
}
}
}
}
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