🗂 Data structure §

→ defines what should be described and how it should be processed

must have: Type (e.g. Int)

• range of values
• possible operands

can have: Instance (e.g. i: Int = 0)

• name (if literal → no name)
• storage address

🏷 Classification §

• constant/variable
• elementary/complex (e.g. Int/Array)
• (non-)referenceable
• (non-)native