public static object CreateInstanceObject(Type typeObj)
{
if (typeObj == null)
{
return(null);
}
try
{
InstantiateObjectHandler instantiateObjectHandler = null;
lstInitHandler.TryGetValue(typeObj.FullName, out instantiateObjectHandler);
if (instantiateObjectHandler == null)
{
instantiateObjectHandler = ABCDynamicMethodCompiler.CreateInstantiateObjectHandler(typeObj);
lstInitHandler.Add(typeObj.FullName, instantiateObjectHandler);
}
return(instantiateObjectHandler());
}
catch (System.Exception ex)
{
try
{
return(typeObj.InvokeMember("", BindingFlags.CreateInstance, null, null, null));
}
catch (System.Exception ex2)
{
}
}
return(null);
}
public static InstantiateObjectHandler CreateInstantiateObjectHandler(Type type)
{
lock (AppInfo.EntityDictionary)
{
if (AppInfo.EntityDictionary.ContainsKey(type))
{
return(AppInfo.EntityDictionary[type]);
}
else
{
ConstructorInfo constructorInfo = type.GetConstructor(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance, null, new Type[0], null);
if (constructorInfo == null)
{
throw new ApplicationException(string.Format("The type {0} must declare an empty constructor (the constructor may be private, internal, protected, protected internal, or public).", type));
}
DynamicMethod dynamicMethod = new DynamicMethod("InstantiateObject", MethodAttributes.Static | MethodAttributes.Public, CallingConventions.Standard, typeof(object), null, type, true);
ILGenerator generator = dynamicMethod.GetILGenerator();
generator.Emit(OpCodes.Newobj, constructorInfo);
generator.Emit(OpCodes.Ret);
InstantiateObjectHandler instantiateObjectHandler = (InstantiateObjectHandler)dynamicMethod.CreateDelegate(typeof(InstantiateObjectHandler));
AppInfo.EntityDictionary.Add(type, instantiateObjectHandler);
return(instantiateObjectHandler);
}
}
}
public static object CreateInstance(Type type)
{
InstantiateObjectHandler instantiateObjectHandler =
DynamicMethodCompiler.CreateInstantiateObjectHandler(type);
return(instantiateObjectHandler());
}