// Copyright (c) 2020 Siegfried Pammer
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.

using ICSharpCode.Decompiler.CSharp.Syntax.PatternMatching;

namespace ICSharpCode.Decompiler.CSharp.Syntax
{
	[DecompilerAstNode(hasNullNode: true)]
	public abstract partial class VariableDesignation : AstNode
	{
		public override NodeType NodeType => NodeType.Unknown;
	}

	/// <summary>
	/// <c>single_variable_designation : identifier ;</c> (C# grammar §11.2.2)
	/// </summary>
	[DecompilerAstNode(hasNullNode: false)]
	public partial class SingleVariableDesignation : VariableDesignation
	{
		public string Identifier {
			get { return GetChildByRole(Roles.Identifier).Name; }
			set { SetChildByRole(Roles.Identifier, Syntax.Identifier.Create(value)); }
		}

		[Slot("Roles.Identifier")]
		public partial Identifier IdentifierToken { get; set; }

		protected internal override bool DoMatch(AstNode other, Match match)
		{
			return other is SingleVariableDesignation o && MatchString(this.Identifier, o.Identifier);
		}
	}

	/// <summary>
	/// <c>tuple_designation : '(' designations? ')' ;</c> (C# grammar §11.2.4)
	/// </summary>
	[DecompilerAstNode(hasNullNode: false)]
	public partial class ParenthesizedVariableDesignation : VariableDesignation
	{

		[Slot("Roles.VariableDesignationRole")]
		public partial AstNodeCollection<VariableDesignation> VariableDesignations { get; }

		protected internal override bool DoMatch(AstNode other, Match match)
		{
			return other is ParenthesizedVariableDesignation o && VariableDesignations.DoMatch(o.VariableDesignations, match);
		}
	}
}