Module ir 

Visualization IR data model and transformations.

This module defines backend-agnostic intermediate representation (IR) types used by visualization backends such as text and figure drawers. It also contains small IR transformations shared by those backends.

Design Goals

• Decouple circuit semantics from rendering implementation.
• Preserve lane/column layout decisions for reuse across backends.
• Carry enough metadata (style/children/span) for control-flow-aware drawing.

Structs

VisualCircuit

Backend-agnostic circuit after layout.

VisualCondition

Structured condition metadata used by control-flow visualization.

VisualOperation

Backend-agnostic operation prepared for rendering.

Enums

VisualChildren

Optional child circuits attached to control-flow operations.

VisualControlFlowKind

Control-flow operation family used by visualization backends.

VisualOpStyle

Draw style used by visualization backends.