Module decl 

Declaration variants populated by AST→IR lowering.

This module introduces the Declaration enum with one variant per kind of named entity the engine reasons about. Each variant carries a shared DeclCommon payload (name, span, owning schema, optional parent declaration) plus a small number of variant-specific fields. The actual lowering from parser AST to these declarations, together with the registration pass (DeclTable + scope chain), lives in the sibling lowering modules.

Placeholder TypeRef payloads are narrowed into structured representations once type resolution cross-checks against the catalog.

Structs

AnchoredType

ColumnDecl

CursorDecl

DeclCommon

Shared metadata carried by every declaration variant.

FunctionDecl

IndexDecl

PackageDecl

ParamDecl

ProcedureDecl

SequenceDecl

SynonymDecl

TableDecl

TriggerDecl

TypeDecl

VariableDecl

ViewDecl

Enums

DeclKind

Discriminator counterpart to Declaration for fast dispatch and fact tagging without pattern-matching the full enum.

Declaration

Discriminated union of every kind of declaration the IR recognizes.

ParamMode

Direction-of-flow marker on procedure/function parameters.

TypeRef

Type reference attached to typed declarations.