Status: IN
The recursive structure subsystem shows evidence of being both internally validated and structurally coherent: Interpreter's role as a demanding client — requiring Composite infrastructure for its AST, Visitor extension for operations like type-checking and code generation, and depending on multiple infrastructure layers (Composite trees, Iterator traversal, Visitor operations, Flyweight sharing) — provides evidence for the subsystem's self-contained completeness. The subsystem's bidirectional OCP extensibility (new element types via Composite, new operations via Visitor) and integrated infrastructure layers suggest a first-class design domain for hierarchical object structures that is both internally complete and disciplined in its compositional capabilities.
Interpreter validates that all layers exist; SOLID governs how they're selected and composed
Depends on (SL): interpreter-validates-recursive-subsystem-completeness, recursive-structures-self-contained-subsystem