{"id":"visitor-enables-open-ended-operations","text":"The Visitor pattern allows an open-ended number of operations on an object structure without modifying the classes in that structure, by defining a Visitor class with a Visit method per element type and an Accept method on each element","truth_value":"IN","source":"entries/2026/06/17/gof-oo-chunk-7.md","source_url":"","source_hash":"","justifications":[],"dependents":["composite-iterator-visitor-recursive-triad","visitor-inverts-ocp-axis"],"metadata":{"last_premise_reviewed":"2026-06-17T18:19:22","premise_review_result":"pass"},"created_at":"2026-06-17T17:04:08+00:00","updated_at":"2026-06-17T17:04:08+00:00","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"visitor-enables-open-ended-operations","truth_value":"IN","reason":"premise"}]}}