{"id":"visitor-maximally-unconstrained-operation-extension","text":"Visitor achieves two forms of structural independence that distinguish it among GoF behavioral patterns: it can operate on objects that do not share a common parent class, and it can traverse diverse object structures — composites, sets, lists, and directed acyclic graphs — including across unrelated class hierarchies.","truth_value":"IN","source":"","source_url":"","source_hash":"","justifications":[{"type":"SL","antecedents":["gof-visitor-no-common-parent-required","visitor-traverses-any-object-structure"],"outlist":[],"label":"Visitor's dual independence from type hierarchy and traversal substrate maximizes its applicability domain"}],"dependents":["visitor-iterator-complete-traversal-articulation"],"metadata":{"source_type":"derived","review_result":"invalid","repair_action":"softened"},"created_at":"2026-06-18T03:58:42+00:00","updated_at":"2026-06-18T06:49:39+00:00","reviewed_at":"2026-06-18T06:15:08+00:00","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"visitor-maximally-unconstrained-operation-extension","truth_value":"IN","reason":"SL justification valid","antecedents":["gof-visitor-no-common-parent-required","visitor-traverses-any-object-structure"],"label":"Visitor's dual independence from type hierarchy and traversal substrate maximizes its applicability domain"},{"node":"gof-visitor-no-common-parent-required","truth_value":"IN","reason":"premise"},{"node":"visitor-traverses-any-object-structure","truth_value":"IN","reason":"premise"}]}}