Patterns DSL

Patterns are kernel-level replication intent in the IR. They are resolved by the backend during build and stay parametric in the feature graph.

Patterns

• patternLinear(id, origin, spacing, count, deps?) -> PatternLinear
• patternCircular(id, origin, axis, count, deps?) -> PatternCircular

Feature/body patterning is available by passing source and result:

• patternLinear(id, origin, spacing, count, { source, result, deps? }) -> PatternLinear
• patternCircular(id, origin, axis, count, { source, result, deps? }) -> PatternCircular

Without source, pattern outputs are consumed by hole(..., { pattern }) for layout.

Pattern vs Generator

• Pattern: runtime feature intent in IR (pattern.linear, pattern.circular), stays editable in rebuilds.
• Generator: authoring-time code helper that expands to many features before compile.

Use a pattern when you want one replicated intent in the model graph. Use a generator when you want code reuse/macros that produce explicit repeated features.

Examples:

• Pattern layout / feature pattern
• Pattern vs generator comparison