Module model 

Format-agnostic tabular AST: the normalized shape every source format (TMDL, TMSL model.bim, .pbix DataModelSchema) is parsed into.

The types here are plain data with no parsing or I/O behaviour. Their only logic is the expression enumeration at the bottom of this module (TabularDatabase::dax_expressions and TabularDatabase::m_expressions), which is the single place that knows where expressions live. The graph layer consumes those two functions instead of walking the AST itself, so a new expression-bearing field cannot be silently omitted from reachability analysis.

Name-based lookup lives in the index submodule; the handle accessors on TabularDatabase (table, column, … and object_id) turn the handles it hands out back into borrowed AST nodes.

String fields hold names with their original casing and compare case-sensitively. Case-insensitive comparison is the job of crate::identity::NameKey, which these names are converted into when they become graph nodes.

Modules

index

Case-insensitive name lookup over a TabularDatabase.

Structs

CalculationGroup

The calculation group defined on a table.

CalculationItem

One item of a calculation group.

Calendar

A calendar (TOM calendar) defined on a table, binding groups of its columns.

Column

A column of a table.

DaxExpressionRef

Borrowed view of one DAX expression owned by a model object.

Function

A user-defined DAX function (TOM function). Referenced from DAX by name; its body can be the sole reference keeping another object alive — and the function itself can be dead.

Hierarchy

A user-defined hierarchy on a table.

HierarchyLevel

One level of a hierarchy.

HierarchyRef

A table-qualified reference to a hierarchy defined on another table.

Kpi

KPI expressions are DAX and can be the sole reference keeping an object alive.

MExpressionRef

Borrowed view of one M expression owned by a model object.

Measure

A DAX measure.

Partition

A partition supplying a table’s rows.

Relationship

A relationship between a column of one table and a column of another.

Role

A row-level-security role.

SharedExpression

A model-level shared M expression: a Power Query parameter or shared query.

Table

A table and everything defined on it.

TablePermission

A role’s permission on one table.

TabularDatabase

Normalized semantic model, regardless of source format (TMDL, model.bim, .pbix DataModelSchema). Downstream code never branches on source format.

Variation

A column variation (TOM variation): the model’s declaration that the owning column is served by a hierarchy on another table — for auto date/time, a hidden relationship to an engine-generated LocalDateTable_*.

Enums

ColumnKind

How a column’s values are produced.

DaxExpressionKind

Which property of its owner a DAX expression came from — model-side or report-side.

ExpressionOwner

The model or report object an enumerated expression belongs to.

PartitionSource

A partition’s source query, discriminated by query language.