Namespace RDCore.SDK.Semantics.Instructions

Instruction: One entry of an InstructionList — RD-VBAL §3.5. Offset is both the entry's index into Items and the program-counter value that fetches it.

InstructionList: The ordered, keyed instruction list of one procedure body — RD-VBAL §3.5 (MS-VBAL §2.3.1: "sequentially evaluate each instruction in the frame"). Built by InstructionListLowering; immutable.

InstructionListLowering: Lowers a procedure body into an InstructionList — RD-VBAL §3.5. This is the statement-tree analogue of StatementStaticSemanticsEvaluator: where that walker recurses through the whole tree checking types and label references, lowering produces the flat, offset-addressable list a future interpreter drives with a program counter, because GoTo/ GoSub/On…GoTo/Resume can jump anywhere in the procedure and a recursive tree walk cannot express that.

InstructionListLoweringResult: The result of Lower(StatementBlock, InstructionLoweringOptions, MemberKind?): the InstructionList lowering produced, and every compile error lowering found while producing it.

InstructionLoweringOptions: What lowering needs to know about the build a procedure is being lowered for.

InstructionKind: Discriminates the control-flow shape of an Instruction within an InstructionList — RD-VBAL §3.5.