{"id":"visitor-accumulates-across-structures","text":"Visitor's structure-independent operation capability extends to stateful cross-element computation: because visitors traverse any object structure without requiring common parent classes, they can accumulate state (e.g., total pricing, type constraints) across heterogeneous element types, enabling analysis that depends on the collective properties of a traversal rather than any single element.","truth_value":"IN","source":"","source_url":"","source_hash":"","justifications":[{"type":"SL","antecedents":["visitor-structure-independent-operations","gof-visitor-accumulates-state"],"outlist":[],"label":"Structure independence plus state accumulation enables cross-element analysis over heterogeneous collections"}],"dependents":["builder-visitor-dual-structure-traversal-patterns","visitor-extensible-stateful-computation","visitor-recursive-stateful-operations"],"metadata":{"source_type":"derived","review_result":"pass"},"created_at":"2026-06-17T23:12:23+00:00","updated_at":"2026-06-18T06:15:08+00:00","reviewed_at":"2026-06-18T06:15:08+00:00","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"visitor-accumulates-across-structures","truth_value":"IN","reason":"SL justification valid","antecedents":["visitor-structure-independent-operations","gof-visitor-accumulates-state"],"label":"Structure independence plus state accumulation enables cross-element analysis over heterogeneous collections"},{"node":"visitor-structure-independent-operations","truth_value":"IN","reason":"SL justification valid","antecedents":["visitor-traverses-any-object-structure","gof-visitor-no-common-parent-required"],"label":"Two independently stated Visitor generality properties (any structure, no common parent) establish Visitor as universally applicable for operations"},{"node":"visitor-traverses-any-object-structure","truth_value":"IN","reason":"premise"},{"node":"gof-visitor-no-common-parent-required","truth_value":"IN","reason":"premise"},{"node":"gof-visitor-accumulates-state","truth_value":"IN","reason":"premise"}]}}