/// <summary>
/// 创建PropertyInfo的动态方法get
/// </summary>
/// <param name="propertyInfo"></param>
/// <returns></returns>
private static DynamicPropertyGetHandler CreateGetHandler(PropertyInfo propertyInfo)
{
MethodInfo getMethodInfo = propertyInfo.GetGetMethod(true);
int argIndex = 0;
DynamicMethod dynamicGet = new DynamicMethod("GP", Type_Object, PropertyGet_P, propertyInfo.DeclaringType, true);
ILGenerator getGenerator = dynamicGet.GetILGenerator();
getGenerator.Emit(OpCodes.Ldarg_0);
foreach (ParameterInfo parainfo in getMethodInfo.GetParameters())
{
getGenerator.Emit(OpCodes.Ldarg_1);
if (argIndex > 8)
{
getGenerator.Emit(OpCodesFactory.GetLdc_I4(argIndex), argIndex);
}
else
{
getGenerator.Emit(OpCodesFactory.GetLdc_I4(argIndex));
}
getGenerator.Emit(OpCodes.Ldelem_Ref);
OpCodesFactory.UnboxIfNeeded(getGenerator, parainfo.ParameterType);
argIndex++;
}
getGenerator.Emit(OpCodes.Callvirt, getMethodInfo);
OpCodesFactory.BoxIfNeeded(getGenerator, getMethodInfo.ReturnType);
getGenerator.Emit(OpCodes.Ret);
return((DynamicPropertyGetHandler)dynamicGet.CreateDelegate(Type_DPGH));
}
/// <summary>
/// 创建构造函数
/// </summary>
/// <param name="constructorInfo"></param>
/// <returns></returns>
private static DynamicConstructorInfoHandler CreateDynamicConstructorInfoHandler(ConstructorInfo constructorInfo)
{
int argIndex = 0;
DynamicMethod dynamicMethod = new DynamicMethod("D",
MethodAttributes.Static | MethodAttributes.Public, CallingConventions.Standard, Type_Object, FieldGet_P, constructorInfo.DeclaringType, true);
ILGenerator generator = dynamicMethod.GetILGenerator();
foreach (ParameterInfo parainfo in constructorInfo.GetParameters())
{
generator.Emit(OpCodes.Ldarg_0);
if (argIndex > 8)
{
generator.Emit(OpCodesFactory.GetLdc_I4(argIndex), argIndex);
}
else
{
generator.Emit(OpCodesFactory.GetLdc_I4(argIndex));
}
generator.Emit(OpCodes.Ldelem_Ref);
OpCodesFactory.UnboxIfNeeded(generator, parainfo.ParameterType);
argIndex++;
}
generator.Emit(OpCodes.Newobj, constructorInfo);
generator.Emit(OpCodes.Ret);
return((DynamicConstructorInfoHandler)dynamicMethod.CreateDelegate(Type_DCIH));
}
/// <summary>
/// 创建PropertyInfo的动态方法set
/// </summary>
/// <param name="propertyInfo"></param>
/// <returns></returns>
private static DynamicPropertySetHandler CreateSetHandler(PropertyInfo propertyInfo)
{
MethodInfo setMethodInfo = propertyInfo.GetSetMethod(true);
int argCount = setMethodInfo.GetParameters().Length;
int argIndex = 0;
DynamicMethod dynamicSet = new DynamicMethod("SP", Type_Void, PropertySet_P, propertyInfo.DeclaringType, true);
ILGenerator setGenerator = dynamicSet.GetILGenerator();
setGenerator.Emit(OpCodes.Ldarg_0);
foreach (ParameterInfo parainfo in setMethodInfo.GetParameters())
{
if (argIndex + 1 >= argCount)
{
break;
}
setGenerator.Emit(OpCodes.Ldarg_2);
if (argIndex > 8)
{
setGenerator.Emit(OpCodesFactory.GetLdc_I4(argIndex), argIndex);
}
else
{
setGenerator.Emit(OpCodesFactory.GetLdc_I4(argIndex));
}
setGenerator.Emit(OpCodes.Ldelem_Ref);
OpCodesFactory.UnboxIfNeeded(setGenerator, parainfo.ParameterType);
argIndex++;
}
setGenerator.Emit(OpCodes.Ldarg_1);
OpCodesFactory.UnboxIfNeeded(setGenerator, setMethodInfo.GetParameters()[argIndex].ParameterType);
setGenerator.Emit(OpCodes.Call, setMethodInfo);
setGenerator.Emit(OpCodes.Ret);
return((DynamicPropertySetHandler)dynamicSet.CreateDelegate(Type_DPSH));
}