private static void GetMemberValue(IntPtr intPtr, IntPtr memberPtr, MemberType type, ref UnmanagedValue value)
{
object objectInstance;
object valueInstance;
switch (type)
{
case MemberType.field:
GetObjectAndInfo(intPtr, memberPtr, out objectInstance, out FieldInfo fieldInfo);
valueInstance = fieldInfo.GetValue(objectInstance);
value.FromManaged(valueInstance);
break;
case MemberType.property:
GetObjectAndInfo(intPtr, memberPtr, out objectInstance, out PropertyInfo propertyInfo);
valueInstance = propertyInfo.GetValue(objectInstance);
value.FromManaged(valueInstance);
return;
case MemberType.method:
throw new MissingMethodException();
case MemberType.constructor:
throw new MissingMemberException();
default:
throw new ArgumentOutOfRangeException(nameof(type), type, null);
}
}
private static void CallMethod(IntPtr instancePtr, IntPtr methodPtr, UnmanagedValue[] parameters, int paramCount, ref UnmanagedValue output)
{
GetObjectAndInfo(instancePtr, methodPtr, out object objectInstance, out MethodInfo info);
object[] objects = new object[paramCount];
for (int index = 0; index < paramCount; index++)
{
objects[index] = parameters[index].ToManaged();
}
object ret = info.Invoke(objectInstance, objects);
if (ret != null)
{
output.FromManaged(ret);
}
}
private static bool CallMethodOut(IntPtr instancePtr, IntPtr methodPtr, UnmanagedValue[] parameters, int paramCount, ref UnmanagedValue output)
{
GetObjectAndInfo(instancePtr, methodPtr, out object objectInstance, out MethodInfo info);
object[] objects = new object[paramCount];
for (int index = 0; index < paramCount - 1; index++)
{
objects[index] = parameters[index].ToManaged();
}
bool ret = (bool)info.Invoke(objectInstance, objects);
if (!ret)
{
return(false);
}
object outParam = objects[paramCount - 1];
output.FromManaged(outParam);
return(true);
}