/Microsoft.Scripting/Actions/TypeTracker.cs

/* ****************************************************************************

 *

 * Copyright (c) Microsoft Corporation. 

 *

 * This source code is subject to terms and conditions of the Microsoft Public License. A 

 * copy of the license can be found in the License.html file at the root of this distribution. If 

 * you cannot locate the  Microsoft Public License, please send an email to 

 * dlr@microsoft.com. By using this source code in any fashion, you are agreeing to be bound 

 * by the terms of the Microsoft Public License.

 *

 * You must not remove this notice, or any other, from this software.

 *

 *

 * ***************************************************************************/



#if CODEPLEX_40

using System;

#else

using System; using Microsoft;

#endif

using System.Collections.Generic;

using System.Reflection;

using Microsoft.Scripting.Runtime;



namespace Microsoft.Scripting.Actions {

    public abstract class TypeTracker : MemberTracker, IMembersList {

        internal TypeTracker() {

        }



        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1721:PropertyNamesShouldNotMatchGetMethods")]

        public abstract Type Type {

            get;

        }



        public abstract bool IsGenericType {

            get;

        }



        public abstract bool IsPublic {

            get;

        }



        #region IMembersList Members



        public IList<object> GetMemberNames(CodeContext context) {

            Dictionary<string, string> members = new Dictionary<string, string>();

            foreach (MemberInfo mi in Type.GetMembers()) {

                if (mi.MemberType != MemberTypes.Constructor) {

                    members[mi.Name] = mi.Name;

                }

            }



            List<object> res = new List<object>();

            foreach (string key in members.Keys) {

                res.Add(key);

            }

            return res;

        }



        #endregion



        /// <summary>

        /// Enables implicit Type to TypeTracker conversions accross dynamic languages.

        /// 

        /// TODO: Should be explicit, but that breaks a JS test

        /// </summary>

        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2225:OperatorOverloadsHaveNamedAlternates")]

        public static implicit operator Type(TypeTracker tracker) {

            TypeGroup tg = tracker as TypeGroup;

            if (tg != null) {

                Type res;

                if (!tg.TryGetNonGenericType(out res)) {

                    throw ScriptingRuntimeHelpers.SimpleTypeError("expected non-generic type, got generic-only type");

                }

                return res;

            }

            return tracker.Type;

        }

    }

}