Module formula 

The dimension-aware formula AST.

Formulas are defined over measure names/ids and categories, not cell addresses. Dimension operations (BY / OVER / EXCEPT) are explicit so the compiler can statically check dimension alignment.

Structs

DimensionSpec

How a measure reference is projected/aggregated across dimensions.

Formula

FuncId

Identifies a built-in or user-defined function (SUM, AVG, IF, …).

Enums

BinaryOp

Expr

A formula expression. Broadcasting over shared dimensions is implicit at the language level and made explicit by the compiler (Phase 1).

UnaryOp