Types

Simple Types

Bool, Int, Float

Nil is the default return type of functions that do not have return values.

String

Ref

Complex Types

List and Dict are a bit more complicated, because they need to store other values. As such, they support the len, get and set methods.

These types also utilize Ref heavily. If you use the standard lovm2 functionality for generating programs, you will always implicitly work with a Ref to the corresponding data. The virtual machine will also ensure that every value being stored inside these types is itself wrapped up in a reference. This is required for the implementation of slices. The Box instruction implements this functionality.

Conversion

The Cast instruction is able to convert data according to the following rules: