using System;
using System.Reflection;
using System.Resources;
using System.IO;
using System.Security.Policy;
using System.Runtime.Serialization;
using System.Globalization;
using System.Runtime.CompilerServices;

namespace System.Reflection.Emit {

	public sealed class AssemblyBuilder : Assembly {
		private IntPtr _impl;
		private MethodInfo entry_point;

		public override string CodeBase {
			get {
				return null;
			}
		}
		
		public override MethodInfo EntryPoint {
			get {
				return entry_point;
			}
		}

		public override string Location {
			get {
				return null;
			}
		}

		public void AddResourceFile (string name, string fileName)
		{
		}

		public void AddResourceFile (string name, string fileName, ResourceAttributes attribute)
		{
		}

		[MethodImplAttribute(MethodImplOptions.InternalCall)]
		private static extern ModuleBuilder defineModule (AssemblyBuilder ab,
								  string name,
								  string filename);
		
		public override ModuleBuilder DefineDynamicModule (string name)
		{
			return null;
		}

		public override ModuleBuilder DefineDynamicModule (string name, bool emitSymbolInfo)
		{
			return null;
		}

		public ModuleBuilder DefineDynamicModule(string name, string fileName)
		{
			return defineModule (this, name, fileName);
		}

		public ModuleBuilder DefineDynamicModule (string name, string fileName,
							  bool emitSymbolInfo)
		{
			return null;
		}

		public IResourceWriter DefineResource (string name, string description, string fileName)
		{
			return null;
		}

		public IResourceWriter DefineResource (string name, string description,
						       string fileName, ResourceAttributes attribute)
		{
			return null;
		}

		public void DefineUnmanagedResource (byte[] resource)
		{
		}

		public void DefineUnmanagedResource (string resourceFileName)
		{
		}

		public void DefineVersionInfoResource ()
		{
		}

		public void DefineVersionInfoResource (string product, string productVersion,
						       string company, string copyright, string trademark)
		{
		}

		public ModuleBuilder GetDynamicModule (string name)
		{
			return null;
		}

		public override Type[] GetExportedTypes ()
		{
			return null;
		}

		public override FileStream GetFile (string name)
		{
			return null;
		}

		/*public virtual FileStream[] GetFiles() {
			return null;
		}
		public override FileStream[] GetFiles(bool getResourceModules) {
			return null;
		}*/

		/*public virtual ManifestResourceInfo GetManifestResourceInfo(string resourceName)
		  {
			return null;
		}
		public virtual string[] GetManifestResourceNames() {
			return null;
		}
		public virtual Stream GetManifestResourceStream(string name) {
			return null;
		}
		public virtual Stream GetManifestResourceStream(Type type, string name) {
			return null;
		}*/

		[MethodImplAttribute(MethodImplOptions.InternalCall)]
		private static extern int getDataChunk (AssemblyBuilder ab, int type, byte[] buf);

		public void Save (string assemblyFileName)
		{
			byte[] buf = new byte[8192];
			FileStream file;
			int count;

			file = new FileStream (assemblyFileName, FileMode.OpenOrCreate, FileAccess.Write);

			count = getDataChunk (this, 0, buf);
			if (count != 0) {
				file.Write (buf, 0, count);
				count = getDataChunk (this, 1, buf); /* may be a too small buffer */
				file.Write (buf, 0, count);
			}

			file.Close ();
		}

		public void SetEntryPoint (MethodInfo entryMethod)
		{
			entry_point = entryMethod;
		}

	}
}