mono/mcs/class/System.Core/System.Linq.Expressions/NewExpression.cs

// 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
//
// Authors:
//		Antonello Provenzano  <[email protected]>
//

using System.Collections.ObjectModel;
using System.Reflection;
using System.Text;

namespace System.Linq.Expressions
{
	public sealed class NewExpression : Expression
	{
		#region .ctor
		internal NewExpression(Type type, ConstructorInfo constructor, ReadOnlyCollection<Expression> arguments)
			: base(ExpressionType.New, type)
		{
			this.constructor = constructor;
			this.arguments = arguments;
		}
		#endregion

		#region Fields
		ReadOnlyCollection<Expression> arguments;
		ReadOnlyCollection<MemberInfo> members;
		private ConstructorInfo constructor;
		#endregion

		#region Properties
		public ReadOnlyCollection<Expression> Arguments
		{
			get { return arguments; }
		}

		public ConstructorInfo Constructor
		{
			get { return constructor; }
		}

		public ReadOnlyCollection<MemberInfo> Members {
			get { return members; }
		}

		#endregion

		#region Internal Methods
		internal override void BuildString(StringBuilder builder)
		{
			Type initType = base.Type;
			if (constructor != null)
				initType = constructor.DeclaringType;

			builder.Append("new " + initType.Name + "(");

			int argc = arguments.Count;
			for (int i = 0; i < argc; i++)
			{
				Expression argExpr = arguments[i];
				argExpr.BuildString(builder);

				if (i < argc - 1)
					builder.Append(", ");
			}

			builder.Append(")");
		}
		#endregion
	}
}