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Summary

JSON GENERATE now translates a source group holding OCCURS ... DEPENDING ON tables: the table is a JSON array of as many elements as the ODO object holds at run time, [] for none (IBM Enterprise COBOL 6.3 LR, JSON GENERATE: SUPPRESS examples and Operation page). JsonGenerate.table(name, count, low, odo, elements...) is the runtime half; gen.py json_tree emits it. Register X76 updated (ASSUMED, oracle-unbacked: no L2+ claim). No burned program uses JSON; fixture tests only.

Class / Sibling gaps

Class: source shapes json_tree (gen.py) refuses by name for JSON GENERATE. Handled in this PR: OCCURS DEPENDING ON tables (group and elementary, count 0 / mid / max), each with a test. Same mechanism but left refused because IBM's pages do not state them: an ODO count outside the clause's bounds (runtime Hole, undefined by IBM, tested) and an ODO table inside another table (refused by name, tested).
Sibling gaps (none needed by a burned program, since no burned program uses JSON):

• NAME OMITTED, elementary source, COMP-1 / COMP-2 floats, a table as the source itself, non-ASCII output: different mechanisms or IBM text not stated.
• JSON PARSE tables / CONVERTING (X77): separate statement model.
• XML GENERATE / XML PARSE: not started.
• SUPPRESS WHEN / EVERY (det: JSON GENERATE SUPPRESS ... WHEN / EVERY (Part of #7524) #7905) and JSON-CODE 1 on a too-small receiver (det: JSON GENERATE sets JSON-CODE 1 on a too-small receiver; JSON-CODE is S9(9) BINARY (Part of #7524, #7709) #7930) are open PRs touching the same files.

Remaining slices

The siblings above, in that order; merge origin/main before merge (overlap with #7905 / #7930 in gen.py, X76.md, tests).

Checklist: partial [c:bb8e1760] -- NAME OMITTED, elementary source, floats left; the item's named phrases are covered once #7905 and #7930 merge

Facts checked: IBM LR pages (JSON GENERATE, Operation of JSON GENERATE) state n elements for ODO value n and [] for zero; out-of-range and nesting are not stated there. Gates: det_port check 270/270 unchanged; audit_check clear; pr_gates --fast: only test_cobolrt_rules failed, fixed (plumbing entry) and re-passing; 146 JSON tests pass.

Lessons for agents

python is not on PATH in a worker shell: export the selfscan venv bin in every Bash call. A new public static runtime method needs a plumbing entry in docs/language_status/cobolrt_rules.json.

🤖 Generated with Claude Code

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This PR conflicts with main, so no checks ran. Merge origin/main into it and regenerate generated files with their tools (never hand-merge them), then push.

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CI shepherd: the head of this PR (95ced4c) is not the one a maintainer labelled shepherd:merge on (new commits, or never approved), so the label was removed and nothing merges unreviewed code. Re-add the label when the new head is ready (shepherd:reapprove marks this PR until then). Until then it is a draft and runs the cheap audits only; re-adding the label marks it ready, which starts the full set on that head.

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