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ClassEmitter.cs
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ClassEmitter.cs
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// Copyright 2004-2021 Castle Project - http://www.castleproject.org/
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
namespace Castle.DynamicProxy.Generators.Emitters
{
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Reflection;
using System.Reflection.Emit;
using Castle.DynamicProxy.Internal;
internal class ClassEmitter : AbstractTypeEmitter
{
internal const TypeAttributes DefaultAttributes =
TypeAttributes.Public | TypeAttributes.Class | TypeAttributes.Serializable;
private readonly ModuleScope moduleScope;
public ClassEmitter(ModuleScope modulescope, string name, Type baseType, IEnumerable<Type> interfaces)
: this(modulescope, name, baseType, interfaces, DefaultAttributes, forceUnsigned: false)
{
}
public ClassEmitter(ModuleScope modulescope, string name, Type baseType, IEnumerable<Type> interfaces,
TypeAttributes flags,
bool forceUnsigned)
: this(CreateTypeBuilder(modulescope, name, baseType, interfaces, flags, forceUnsigned))
{
interfaces = InitializeGenericArgumentsFromBases(ref baseType, interfaces);
if (interfaces != null)
{
foreach (var inter in interfaces)
{
if (inter.IsInterface)
{
TypeBuilder.AddInterfaceImplementation(inter);
}
else
{
Debug.Assert(inter.IsDelegateType());
}
}
}
TypeBuilder.SetParent(baseType);
moduleScope = modulescope;
}
public ClassEmitter(TypeBuilder typeBuilder)
: base(typeBuilder)
{
}
public ModuleScope ModuleScope
{
get { return moduleScope; }
}
internal bool InStrongNamedModule
{
get { return StrongNameUtil.IsAssemblySigned(TypeBuilder.Assembly); }
}
protected virtual IEnumerable<Type> InitializeGenericArgumentsFromBases(ref Type baseType,
IEnumerable<Type> interfaces)
{
if (baseType != null && baseType.IsGenericTypeDefinition)
{
throw new NotSupportedException("ClassEmitter does not support open generic base types. Type: " + baseType.FullName);
}
if (interfaces == null)
{
return interfaces;
}
foreach (var inter in interfaces)
{
if (inter.IsGenericTypeDefinition)
{
throw new NotSupportedException("ClassEmitter does not support open generic interfaces. Type: " + inter.FullName);
}
}
return interfaces;
}
private static TypeBuilder CreateTypeBuilder(ModuleScope modulescope, string name, Type baseType,
IEnumerable<Type> interfaces,
TypeAttributes flags, bool forceUnsigned)
{
var isAssemblySigned = !forceUnsigned && !StrongNameUtil.IsAnyTypeFromUnsignedAssembly(baseType, interfaces);
return modulescope.DefineType(isAssemblySigned, name, flags);
}
}
}