LanguagesObjective-C

objcperf rule ids (slugs)

Canonical ids are slugs only. Numerics from the old map are historical and not accepted.

Slug
`oc-nsstring-append-hot`
`oc-nslog-hot`
`oc-dateformatter-hot`
`oc-json-hot`
`oc-regex-hot`
`oc-file-read-hot`
`oc-clock-hot`
`oc-value-for-key-hot`

Renamed 2026-10-27 (tombstone old; never reuse)

Default --scope all (or kit-equivalent). Old *-in-loop ids misled tools/models; they are tombstoned under evidence/_removed/.

Old slug	New slug
`oc-clock-in-loop`	`oc-clock-hot`
`oc-dateformatter-in-loop`	`oc-dateformatter-hot`
`oc-file-read-in-loop`	`oc-file-read-hot`
`oc-json-in-loop`	`oc-json-hot`
`oc-nslog-in-loop`	`oc-nslog-hot`
`oc-nsstring-append-in-loop`	`oc-nsstring-append-hot`
`oc-regex-in-loop`	`oc-regex-hot`
`oc-value-for-key-in-loop`	`oc-value-for-key-hot`

Removed (tombstone; never reuse)

OC001 — see evidence/_removed/
OC004 — see evidence/_removed/

See also root rule-id-map.

Objective-C performance guide (v0)

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Renamed 2026-10-27 (tombstone old; never reuse)Removed (tombstone; never reuse)