// ==========================================================================

// This software is subject to the provisions of the Zope Public License,

// Version 2.0 (ZPL). A copy of the ZPL should accompany this distribution.

// THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED

// WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

// WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS

// FOR A PARTICULAR PURPOSE.

// ==========================================================================

using System;

using System.Threading;

using System.Runtime.InteropServices;

using System.Runtime.CompilerServices;

using System.Collections;

using System.Reflection;

using System.Reflection.Emit;

namespace Python.Runtime {

/// <summary>

/// Several places in the runtime generate code on the fly to support

/// dynamic functionality. The CodeGenerator class manages the dynamic

/// assembly used for code generation and provides utility methods for

/// certain repetitive tasks.

/// </summary>

internal class CodeGenerator {

static AssemblyBuilder aBuilder;

static ModuleBuilder mBuilder;

static CodeGenerator() {

AssemblyName aname = new AssemblyName();

aname.Name = "__CodeGenerator_Assembly";

AssemblyBuilderAccess aa = AssemblyBuilderAccess.Run;

aBuilder = Thread.GetDomain().DefineDynamicAssembly(aname, aa);

mBuilder = aBuilder.DefineDynamicModule("__CodeGenerator_Module");

}

//====================================================================

// DefineType is a shortcut utility to get a new TypeBuilder.

//====================================================================

internal static TypeBuilder DefineType(string name) {

TypeAttributes attrs = TypeAttributes.Public;

return mBuilder.DefineType(name, attrs);

}

//====================================================================

// DefineType is a shortcut utility to get a new TypeBuilder.

//====================================================================

internal static TypeBuilder DefineType(string name, Type basetype) {

TypeAttributes attrs = TypeAttributes.Public;

return mBuilder.DefineType(name, attrs, basetype);

}

}

}