public static Type CreateType(Type interfaceType, IMethodEmit methodEmitter, bool isPersist, string prefix)
{
AssemblyBuilderAccess aba;
isPersist = false;
if (isPersist)
{
// 如果配置为需要持久化，则设置为RunAndSave模式
aba = AssemblyBuilderAccess.Run;
}
else
{
//AssemblyBuilderAccess.Run-表示只用于运行，不在磁盘上保存
aba = AssemblyBuilderAccess.Run;
}
//创建 Assembly
AssemblyName an = new AssemblyName();
an.Name = prefix;
//AssemblyBuilder.DefineDynamicAssembly(new AssemblyName(Guid.NewGuid().ToString()),AssemblyBuilderAccess.Run);
AssemblyBuilder asmBuilder = AssemblyBuilder.DefineDynamicAssembly(an, aba);
//创建Module
ModuleBuilder mdlBuilder;
if (isPersist)
{
// 如果配置为需要持久化，则设置Dynamic Module需要保存的文件名字
//mdlBuilder = asmBuilder.DefineDynamicModule(prefix + ".Module_Impl", an.Name + ".dll");
mdlBuilder = asmBuilder.DefineDynamicModule(prefix + ".Module_Impl");
}
else
{
mdlBuilder = asmBuilder.DefineDynamicModule(prefix + ".Module_Impl");
}
TypeAttributes typeAttributes =
TypeAttributes.Class | TypeAttributes.Public | TypeAttributes.Sealed;
//创建Type，该类型继承interfaceType所指定的接口
TypeBuilder typeBuilder = mdlBuilder.DefineType(prefix + "_Impl", typeAttributes);
InnerCreateType(typeBuilder, interfaceType, methodEmitter);
Type tmp = typeBuilder.CreateTypeInfo();
//if (isPersist)
//{
// // 如果配置为需要持久化，则持久化该dll到硬盘
// asmBuilder.Save(an.Name + ".dll");
//}
return(tmp);
}
public static Type CreateType(Type interfaceType, IMethodEmit methodEmitter, bool isPersist)
{
string name = string.Empty;
if (interfaceType.IsGenericType)
{
name = interfaceType.GetGenericTypeDefinition().Name.Replace("`1", "_" + interfaceType.GetGenericArguments()[0].Name ) + "_" + GenerateStringID();
}
else
{
name = interfaceType.Name + "_" + GenerateStringID();
}
return CreateType(interfaceType, methodEmitter, isPersist, name);
}
public static Type CreateType(Type interfaceType, IMethodEmit methodEmitter, bool isPersist, string prefix)
{
AssemblyBuilderAccess aba;
if (isPersist)
{
// 如果配置为需要持久化，则设置为RunAndSave模式
aba = AssemblyBuilderAccess.RunAndSave;
}
else
{
//AssemblyBuilderAccess.Run-表示只用于运行，不在磁盘上保存
aba = AssemblyBuilderAccess.Run;
}
//创建 Assembly
AssemblyName an = new AssemblyName();
an.Name = prefix;
AssemblyBuilder asmBuilder = AppDomain.CurrentDomain.DefineDynamicAssembly(an, aba, AppDomain.CurrentDomain.SetupInformation.ApplicationBase);
//创建Module
ModuleBuilder mdlBuilder;
if (isPersist)
{
// 如果配置为需要持久化，则设置Dynamic Module需要保存的文件名字
mdlBuilder = asmBuilder.DefineDynamicModule(prefix + ".Module_Impl", an.Name + ".dll");
}
else
{
mdlBuilder = asmBuilder.DefineDynamicModule(prefix + ".Module_Impl");
}
TypeAttributes typeAttributes =
TypeAttributes.Class | TypeAttributes.Public | TypeAttributes.Sealed;
//创建Type，该类型继承interfaceType所指定的接口
TypeBuilder typeBuilder = mdlBuilder.DefineType(prefix + "_Impl", typeAttributes);
InnerCreateType(typeBuilder, interfaceType, methodEmitter);
Type tmp = typeBuilder.CreateType();
if (isPersist)
{
// 如果配置为需要持久化，则持久化该dll到硬盘
asmBuilder.Save(an.Name + ".dll");
}
return(tmp);
}
public static Type CreateType(Type interfaceType, IMethodEmit methodEmitter, bool isPersist)
{
string name = string.Empty;
if (interfaceType.IsGenericType)
{
name = interfaceType.GetGenericTypeDefinition().Name.Replace("`1", "_" + interfaceType.GetGenericArguments()[0].Name) + "_" + GenerateStringID();
}
else
{
name = interfaceType.Name + "_" + GenerateStringID();
}
return(CreateType(interfaceType, methodEmitter, isPersist, name));
}
public static Type CreateType(Type interfaceType, IMethodEmit methodEmitter, bool isPersist, string prefix)
{
AssemblyBuilderAccess aba;
if (isPersist)
{
// 如果配置为需要持久化，则设置为RunAndSave模式
aba = AssemblyBuilderAccess.RunAndSave;
}
else
{
//AssemblyBuilderAccess.Run-表示只用于运行，不在磁盘上保存
aba = AssemblyBuilderAccess.Run;
}
//创建 Assembly
AssemblyName an = new AssemblyName();
an.Name = prefix;
AssemblyBuilder asmBuilder = AppDomain.CurrentDomain.DefineDynamicAssembly(an, aba, AppDomain.CurrentDomain.SetupInformation.ApplicationBase);
//创建Module
ModuleBuilder mdlBuilder;
if (isPersist)
{
// 如果配置为需要持久化，则设置Dynamic Module需要保存的文件名字
mdlBuilder = asmBuilder.DefineDynamicModule(prefix + ".Module_Impl", an.Name + ".dll");
}
else
{
mdlBuilder = asmBuilder.DefineDynamicModule(prefix + ".Module_Impl");
}
TypeAttributes typeAttributes =
TypeAttributes.Class | TypeAttributes.Public | TypeAttributes.Sealed;
//创建Type，该类型继承interfaceType所指定的接口
TypeBuilder typeBuilder = mdlBuilder.DefineType(prefix + "_Impl", typeAttributes);
InnerCreateType(typeBuilder, interfaceType, methodEmitter);
Type tmp = typeBuilder.CreateType();
if (isPersist)
{
// 如果配置为需要持久化，则持久化该dll到硬盘
asmBuilder.Save(an.Name + ".dll");
}
return tmp;
}
public static Type CreateType(Type interfaceType, IMethodEmit methodEmitter, bool isPersist, string prefix)
{
AssemblyBuilder asmBuilder;
ModuleBuilder mdlBuilder = GetModuleBuilder(isPersist, out asmBuilder);
TypeAttributes typeAttributes =
TypeAttributes.Class | TypeAttributes.Public | TypeAttributes.Sealed;
TypeBuilder typeBuilder = mdlBuilder.DefineType(prefix + "_Impl", typeAttributes);
InnerCreateType(typeBuilder, interfaceType, methodEmitter);
Type tmp = typeBuilder.CreateType();
if (isPersist)
{
asmBuilder.Save("IBB360.DynamicType.dll");
}
return(tmp);
}
private static void InnerCreateType(TypeBuilder typeBuilder, Type interfaceType, IMethodEmit methodEmitter)
{
typeBuilder.AddInterfaceImplementation(interfaceType);
foreach (MemberInfo member in interfaceType.GetMembers(BindingFlags.Instance | BindingFlags.Public))
{
//约定-成员必须是方法，不能有属性，事件之类的
if (member.MemberType != MemberTypes.Method)
{
throw (new ApplicationException("Could not emit " + member.MemberType + " automatically!"));
}
CreateMethod(typeBuilder, (MethodInfo)member, methodEmitter);
}
//获取派生自的父接口
Type[] typeList = interfaceType.GetInterfaces();
if (typeList == null || typeList.Length <= 0)
{
return;
}
//为父接口实现方法
for (int i = 0; i < typeList.Length; i++)
{
InnerCreateType(typeBuilder, typeList[i], methodEmitter);
}
}
public static Type CreateType(Type interfaceType, IMethodEmit methodEmitter)
{
return(CreateType(interfaceType, methodEmitter, false));
}
private static void CreateMethod(TypeBuilder typeBuilder, MethodInfo methodInfo, IMethodEmit methodEmitter)
{
ParameterInfo[] paramInfos = methodInfo.GetParameters();
int paramLength = paramInfos.Length;
//取得参数的类型数组
Type[] paramTypes = new Type[paramLength];
for (int i = 0; i < paramLength; i++)
{
paramTypes[i] = paramInfos[i].ParameterType;
}
//在m_TypeBuilder上建立新方法，参数类型与返回类型都与接口上的方法一致
MethodBuilder mthBuilder = typeBuilder.DefineMethod(methodInfo.Name, MethodAttributes.Public | MethodAttributes.Virtual, CallingConventions.Standard, methodInfo.ReturnType, paramTypes);
//指定新方法是实现接口的方法的。
typeBuilder.DefineMethodOverride(mthBuilder, methodInfo);
//复制新方法上的参数的名字和属性
for (int i = 0; i < paramLength; i++)
{
ParameterInfo pi = paramInfos[i];
//对于Instance,参数position由1开始
mthBuilder.DefineParameter(i + 1, pi.Attributes, pi.Name);
}
Type returnType = methodInfo.ReturnType;
//ILGenerator 是用于生成实现代码的对象
ILGenerator ilg = mthBuilder.GetILGenerator();
methodEmitter.CreateMethod(ilg, methodInfo);
}
private static void CreateMethod(TypeBuilder typeBuilder, MethodInfo methodInfo, IMethodEmit methodEmitter)
{
ParameterInfo[] paramInfos = methodInfo.GetParameters();
int paramLength = paramInfos.Length;
//取得参数的类型数组
Type[] paramTypes = new Type[paramLength];
for (int i = 0; i < paramLength; i++)
{
paramTypes[i] = paramInfos[i].ParameterType;
}
//在m_TypeBuilder上建立新方法，参数类型与返回类型都与接口上的方法一致
MethodBuilder mthBuilder = typeBuilder.DefineMethod(methodInfo.Name, MethodAttributes.Public | MethodAttributes.Virtual, CallingConventions.Standard, methodInfo.ReturnType, paramTypes);
//指定新方法是实现接口的方法的。
typeBuilder.DefineMethodOverride(mthBuilder, methodInfo);
//复制新方法上的参数的名字和属性
for (int i = 0; i < paramLength; i++)
{
ParameterInfo pi = paramInfos[i];
//对于Instance,参数position由1开始
mthBuilder.DefineParameter(i + 1, pi.Attributes, pi.Name);
}
Type returnType = methodInfo.ReturnType;
//ILGenerator 是用于生成实现代码的对象
ILGenerator ilg = mthBuilder.GetILGenerator();
methodEmitter.CreateMethod(ilg, methodInfo);
}
public static Type CreateType(Type interfaceType, IMethodEmit methodEmitter)
{
return CreateType(interfaceType, methodEmitter, false);
}
private static void InnerCreateType(TypeBuilder typeBuilder, Type interfaceType, IMethodEmit methodEmitter)
{
typeBuilder.AddInterfaceImplementation(interfaceType);
foreach (MemberInfo member in interfaceType.GetMembers(BindingFlags.Instance | BindingFlags.Public))
{
//约定-成员必须是方法，不能有属性，事件之类的
if (member.MemberType != MemberTypes.Method)
{
throw (new ApplicationException("Could not emit " + member.MemberType + " automatically!"));
}
CreateMethod(typeBuilder, (MethodInfo)member, methodEmitter);
}
//获取派生自的父接口
Type[] typeList = interfaceType.GetInterfaces();
if (typeList == null || typeList.Length <= 0)
{
return;
}
//为父接口实现方法
for (int i = 0; i < typeList.Length; i++)
{
InnerCreateType(typeBuilder, typeList[i], methodEmitter);
}
}
