#region license
// Copyright (c) 2005 - 2007 Ayende Rahien (ayende@ayende.com)
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
// 
//     * Redistributions of source code must retain the above copyright notice,
//     this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above copyright notice,
//     this list of conditions and the following disclaimer in the documentation
//     and/or other materials provided with the distribution.
//     * Neither the name of Ayende Rahien nor the names of its
//     contributors may be used to endorse or promote products derived from this
//     software without specific prior written permission.
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#endregion


using System;
using Boo.Lang.Compiler.Ast;

namespace Rhino.Commons.Binsor.Macros
{
    using Extensions;

    [CLSCompliant(false)]
	public class BaseConfigurationMacro<T> : BaseBinsorExtensionMacro<T> where T : ConfigurationExtension
	{
		public BaseConfigurationMacro(string name, params string[] validParents)
			: base(name, false, validParents)
		{	
		}

		protected override bool ExpandExtension(ref MethodInvocationExpression extension,
		                                        MacroStatement macro, MacroStatement parent,
		                                        ref Statement expansion)
		{
			if (macro.Block != null)
			{
				PromoteExtensions(macro, parent);

				HashConfigurationBuilder builder = new HashConfigurationBuilder();

				if (builder.BuildConfig(macro.Block, Errors) && builder.HasConfiguration)
				{
					extension.Arguments.Add(builder.HashConfiguration);
					return true;
				}
			}

			return false;
		}
	}
}