modulebuilder.cs

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/*
 * ModuleBuilder.cs - Implementation of the
 *		"System.Reflection.Emit.ModuleBuilder" class.
 *
 * Copyright (C) 2002  Southern Storm Software, Pty Ltd.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

namespace System.Reflection.Emit
{

#if CONFIG_REFLECTION_EMIT

using System;
using System.Security;
using System.Resources;
using System.Reflection;
using System.Security.Policy;
using System.Diagnostics.SymbolStore;
using System.Runtime.InteropServices;
using System.Runtime.CompilerServices;

public class ModuleBuilder : Module, IDetachItem
{
	// Internal state.
	internal AssemblyBuilder assembly;
	private String name;
	private bool transient;
	private bool emitSymbolInfo;
	private TypeBuilder moduleType;

	// Constructor.
	internal ModuleBuilder(AssemblyBuilder assembly, String name,
						   bool transient, bool emitSymbolInfo)
			{
				// Initialize the fields within this object.
				this.assembly = assembly;
				this.name = name;
				this.transient = transient;
				this.emitSymbolInfo = emitSymbolInfo;

				// Register this object for detaching.
				assembly.AddDetach(this);

				// Create a new module within the assembly.
				lock(typeof(AssemblyBuilder))
				{
					privateData = ClrModuleCreate(assembly.privateData, name);
				}

				// Create the module type for this module.
				moduleType = new TypeBuilder(this, "<Module>",
											 null, TypeAttributes.NotPublic,
											 null, null,
											 PackingSize.Unspecified, 0, null);
				moduleType.needsDefaultConstructor = false;
			}

	// Workaround the fact that the Assembly property is non-virtual. 
	internal override System.Reflection.Assembly GetAssemblyCore()
			{
				return assembly;
			}

	// Get the fully qualified name of this module.
	public override String FullyQualifiedName
			{
				get
				{
					return name;
				}
			}

	// Start a synchronized operation on this module.
	internal void StartSync()
			{
				assembly.StartSync();
			}

	// End a synchronized operation on this module.
	internal void EndSync()
			{
				assembly.EndSync();
			}

	// Create the global functions in this module.
	public void CreateGlobalFunctions()
			{
				moduleType.CreateType();
			}

	// TODO - debug symbol support

	// Define a document for source.
	[TODO]
	public ISymbolDocumentWriter DefineDocument
				(String url, Guid language,
				 Guid languageVendor, Guid documentType)
			{
				// TODO
				return null;
			}

	// Define an enumerated type within this module.
	public EnumBuilder DefineEnum(String name, TypeAttributes visibility,
								  Type underlyingType)
			{
				try
				{
					StartSync();
					int index = name.LastIndexOf('.');
					String nspace;
					if(index != -1)
					{
						nspace = name.Substring(0, index);
						name = name.Substring(index + 1);
					}
					else
					{
						nspace = null;
					}
					return new EnumBuilder(this, name, nspace,
										   visibility, underlyingType);
				}
				finally
				{
					EndSync();
				}
			}

	// Define a global method within this module.
	public MethodBuilder DefineGlobalMethod
				(String name, MethodAttributes attributes,
				 CallingConventions callingConvention,
				 Type returnType, Type[] parameterTypes)
			{
				try
				{
					StartSync();
					if((attributes & MethodAttributes.Static) == 0)
					{
						throw new ArgumentException(_("Emit_GlobalNonStatic"));
					}
					return moduleType.DefineMethod
						(name, attributes, callingConvention,
						 returnType, parameterTypes);
				}
				finally
				{
					EndSync();
				}
			}
	public MethodBuilder DefineGlobalMethod
				(String name, MethodAttributes attributes,
				 Type returnType, Type[] parameterTypes)
			{
				return DefineGlobalMethod(name, attributes,
										  CallingConventions.Standard,
										  returnType, parameterTypes);
			}

	// Define initialized data as a global field.
	public FieldBuilder DefineInitializedData
				(String name, byte[] data, FieldAttributes attributes)
			{
				try
				{
					StartSync();
					return moduleType.DefineInitializedData
						(name, data, attributes);
				}
				finally
				{
					EndSync();
				}
			}

	// Define a global PInvoke method.
	public MethodBuilder DefinePInvokeMethod
				(String name, String dllName, String entryName,
				 MethodAttributes attributes,
				 CallingConventions callingConvention,
				 Type returnType, Type[] parameterTypes,
				 CallingConvention nativeCallConv,
				 CharSet nativeCharSet)
			{
				return moduleType.DefinePInvokeMethod
					(name, dllName, entryName, attributes,
				     callingConvention, returnType, parameterTypes,
				 	 nativeCallConv, nativeCharSet);
			}
	public MethodBuilder DefinePInvokeMethod
				(String name, String dllName,
				 MethodAttributes attributes,
				 CallingConventions callingConvention,
				 Type returnType, Type[] parameterTypes,
				 CallingConvention nativeCallConv,
				 CharSet nativeCharSet)
			{
				return moduleType.DefinePInvokeMethod
					(name, dllName, name, attributes,
				     callingConvention, returnType, parameterTypes,
				 	 nativeCallConv, nativeCharSet);
			}

	// Define a resource within a module.
	[TODO]
	public IResourceWriter DefineResource
				(String name, String description,
				 ResourceAttributes attribute)
			{
				try
				{
					StartSync();
					// TODO
					return null;
				}
				finally
				{
					EndSync();
				}
			}
	public IResourceWriter DefineResource(String name, String description)
			{
				return DefineResource(name, description,
									  ResourceAttributes.Public);
			}

	// Define a type witin this module.
	private TypeBuilder DefineType(String name, TypeAttributes attr,
								   Type parent, Type[] interfaces,
								   PackingSize packSize, int typeSize)
			{
				try
				{
					StartSync();
					int index = name.LastIndexOf('.');
					String nspace;
					if(index != -1)
					{
						nspace = name.Substring(0, index);
						name = name.Substring(index + 1);
					}
					else
					{
						nspace = null;
					}
					return new TypeBuilder(this, name, nspace, attr,
										   parent, interfaces, packSize,
										   typeSize, null);
				}
				finally
				{
					EndSync();
				}
			}
	public TypeBuilder DefineType(String name)
			{
				return DefineType(name, TypeAttributes.NotPublic,
								  typeof(System.Object), null, 
								  PackingSize.Unspecified, 0);
			}
	public TypeBuilder DefineType(String name, TypeAttributes attr)
			{
				return DefineType(name, attr, 
									(attr & TypeAttributes.Interface)==0 ?
										typeof(System.Object) : null ,
									null, PackingSize.Unspecified, 0);
			}
	public TypeBuilder DefineType(String name, TypeAttributes attr,
								  Type parent)
			{
				return DefineType(name, attr, parent, null,
								  PackingSize.Unspecified, 0);
			}
	public TypeBuilder DefineType(String name, TypeAttributes attr,
								  Type parent, int typeSize)
			{
				return DefineType(name, attr, parent, null,
								  PackingSize.Unspecified, typeSize);
			}
	public TypeBuilder DefineType(String name, TypeAttributes attr,
								  Type parent, PackingSize packSize)
			{
				return DefineType(name, attr, parent, null,
								  packSize, 0);
			}
	public TypeBuilder DefineType(String name, TypeAttributes attr,
								  Type parent, Type[] interfaces)
			{
				return DefineType(name, attr, parent, interfaces,
								  PackingSize.Unspecified, 0);
			}
	public TypeBuilder DefineType(String name, TypeAttributes attr,
								  Type parent, PackingSize packSize,
								  int typeSize)
			{
				return DefineType(name, attr, parent, null,
								  packSize, typeSize);
			}

	// Define uninitialized data as a global field.
	public FieldBuilder DefineUninitializedData
				(String name, int size, FieldAttributes attributes)
			{
				try
				{
					StartSync();
					return moduleType.DefineUninitializedData
						(name, size, attributes);
				}
				finally
				{
					EndSync();
				}
			}

	// Define an unmanaged resource within this module.
	[TODO]
	public void DefineUnmanagedResource(byte[] resource)
			{
				try
				{
					StartSync();
					// TODO
				}
				finally
				{
					EndSync();
				}
			}
	[TODO]
	public void DefineUnmanagedResource(String resourceFileName)
			{
				try
				{
					StartSync();
					// TODO
				}
				finally
				{
					EndSync();
				}
			}