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Dynamic configurations

AngelScript supports the concept for configuration groups. This can be used for example by application plug-ins that wish to register their own interface with the script engine. When the plug-in is later removed, the configuration group for that plug-in can also be removed from the AngelScript interface without having to reinitialize everything.

To register part of the interface in a configuration group, the registration should be done between calls to BeginConfigGroup and EndConfigGroup. This can be done as many times as desired, but groups cannot be nested. Observe that object methods, behaviours, and properties will always be placed in the same group where the object type was placed even if another group has been specified between the calls.

To remove a configuration group the method RemoveConfigGroup should be called with the name given to the BeginConfigGroup. It is only possible to remove a config group that is not currently in use. Possible causes that prevents the removal of a group may be:

- Another registered a function outside the group uses a type from the group
- A script is currently built that uses a type or function from the group
- An instance of a script object that uses a type or function from the group is alive

It can be difficult to determine exactly where the use comes from so here's a few steps to do when RemoveConfigGroup returns asCONFIG_GROUP_IS_IN_USE.

- Run a full cycle on the garbage collector to destroy lingering objects
- Discard any module that may have been compiled with the group
- Double check that no other group uses the entities from the group