// Copyright (c) .NET Foundation and contributors. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
 
using System.Diagnostics;
using System.Text;
using Mono.Cecil;
 
namespace Mono.Linker
{
	public static class MemberReferenceExtensions
	{
		public static string GetDisplayName (this MemberReference member)
		{
			switch (member) {
			case TypeReference type:
				return type.GetDisplayName ();
 
			case MethodReference method:
				return method.GetDisplayName ();
 
			case IMemberDefinition memberDef:
				var sb = new StringBuilder ();
				if (memberDef.DeclaringType != null)
					sb.Append (memberDef.DeclaringType.GetDisplayName ()).Append ('.');
				sb.Append (memberDef.Name);
				return sb.ToString ();
 
			default:
				Debug.Assert (false, "The display name should not use cecil's signature format.");
				return member.FullName;
			}
		}
 
		public static string GetNamespaceDisplayName (this MemberReference member)
		{
			var type = member is TypeReference typeReference ? typeReference : member.DeclaringType;
			while (type.DeclaringType != null)
				type = type.DeclaringType;
 
			return type.Namespace;
		}
	}
}