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UtilityFunctionSet.cs

//
// UtilityFunctionSet.cs
//
// Author:
//   Aaron Bockover <abockover@novell.com>
//
// Copyright (C) 2007-2008 Novell, Inc.
//
// 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;

namespace Hyena.SExpEngine
{
00033     public class UtilityFunctionSet : FunctionSet
    {
        [Function("print")]
        public virtual TreeNode OnPrint(TreeNode [] args)
        {
            if(args.Length != 1) {
                throw new ArgumentException("print must have only one argument");
            }

            Console.WriteLine(Evaluate(args[0]));

            return new VoidLiteral();
        }

        [Function("print-type")]
        public virtual TreeNode OnPrintType(TreeNode [] args)
        {
            if(args.Length != 1) {
                throw new ArgumentException("print-type must have only one argument");
            }

            Console.WriteLine(Evaluate(args[0]).GetType());

            return new VoidLiteral();
        }

        [Function("dump")]
        public virtual TreeNode OnDump(TreeNode [] args)
        {
            foreach(TreeNode arg in args) {
                Evaluate(arg).Dump();
            }

            return new VoidLiteral();
        }
    }
}

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