// 
// NamedExpression.cs
//  
// Author:
//       Mike Krüger <mkrueger@xamarin.com>
// 
// Copyright (c) 2011 Xamarin
// 
// 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 System.Collections.Generic;
using System.Linq;

namespace ICSharpCode.NRefactory.CSharp
{
	/// <summary>
	/// name = expression
	/// This isn't the same as 'assign' even though it has the same syntax.
	/// This expression is used in object initializers and for named attribute arguments [Attr(FieldName = value)].
	/// </summary>
	public class NamedExpression : Expression
	{
		public NamedExpression()
		{
		}
		
		public NamedExpression (string name, Expression expression)
		{
			this.Name = name;
			this.Expression = expression;
		}
		
		public string Name {
			get {
				return GetChildByRole (Roles.Identifier).Name;
			}
			set {
				SetChildByRole(Roles.Identifier, CSharp.Identifier.Create (value));
			}
		}
		
		public Identifier NameToken {
			get {
				return GetChildByRole (Roles.Identifier);
			}
			set {
				SetChildByRole(Roles.Identifier, value);
			}
		}
		
		public CSharpTokenNode AssignToken {
			get { return GetChildByRole (Roles.Assign); }
		}
		
		public Expression Expression {
			get { return GetChildByRole (Roles.Expression); }
			set { SetChildByRole (Roles.Expression, value); }
		}
		
		public override void AcceptVisitor (IAstVisitor visitor)
		{
			visitor.VisitNamedExpression (this);
		}
			
		public override T AcceptVisitor<T> (IAstVisitor<T> visitor)
		{
			return visitor.VisitNamedExpression (this);
		}
		
		public override S AcceptVisitor<T, S>(IAstVisitor<T, S> visitor, T data)
		{
			return visitor.VisitNamedExpression(this, data);
		}
		
		protected internal override bool DoMatch(AstNode other, PatternMatching.Match match)
		{
			var o = other as NamedExpression;
			return o != null && MatchString(this.Name, o.Name) && this.Expression.DoMatch(o.Expression, match);
		}
	}
}
