You can consider a language element as supported for all interfaces, on all operating systems, and for SpeedScript unless otherwise indicated in each language element description. These descriptions refer to both compile-time and run-time behavior, features that the language generally supports and determines at compile time and actions directed by using these features at run time. When describing compile-time features or actions, this section references ABL or the ABL compiler. When describing ABL-directed actions taken at run time, this section references the ABL Virtual Machine (AVM).