{"adoption": {"forks": 460, "observed_at": "2026-08-28T04:08:51.457963+00:00", "stars": 4499}, "canonical_url": "https://ross.abutalabs.com/products/libextobjc", "card": {"archived": true, "artifact_type": "library", "description": "A Cocoa library to extend the Objective-C programming language.", "domain": ["developer-tools", "programming-languages", "operating-systems"], "enriched": true, "function": ["programming-language", "developer-tools", "concurrency", "error-handling"], "health_score": 10, "homepage": null, "language": "Objective-C", "license": "MIT", "license_family": "permissive", "maturity": "maintenance", "member_repos": ["jspahrsummers/libextobjc"], "name": "jspahrsummers/libextobjc", "platform": ["cpp"], "pushed_at": "2019-04-23T07:16:41+00:00", "repo": "jspahrsummers/libextobjc", "stars": 4499, "tags": ["objective-c", "cocoa", "macros", "runtime", "metaprogramming", "macos", "ios"], "topics": [], "urls": [], "use_cases": ["add safe categories to Objective-C classes without overwriting existing methods", "provide default implementations for Objective-C protocols", "check key paths and selectors at compile time", "use weak variables safely inside blocks with @weakify and @strongify", "automatically clean up resources at scope exit with @onExit", "define algebraic data types at compile time in Objective-C", "reflect on object properties and inject methods via the Objective-C runtime"], "what_it_is": "libextobjc is a modular Cocoa library that extends the Objective-C language with additional patterns and compile-time checks, such as safe categories, concrete protocols, weakify/strongify macros, and algebraic data types. It builds on the Objective-C runtime to bring features from other programming languages into Objective-C projects.", "when_to_avoid": ["you are starting a new project in Swift, where most of these patterns are built in", "you need a library with active development and recent updates", "you need production support for the experimental branch features"], "when_to_choose": ["you maintain a legacy Objective-C or Cocoa codebase and want safer, more expressive language features", "you need compile-time checking of key paths and selectors in Objective-C", "you want modular, low-dependency extensions to the Objective-C runtime"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/libextobjc", "repo": "jspahrsummers/libextobjc", "role": "main", "score": 10}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:08:51.457963+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-29T18:20:26.233943+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "e8f68a0a1d75a41d9a95099163b306cd80b0c9871fddadd40b52d7adb63f3cf2", "fetched_at": "2026-08-28T04:08:51.457963+00:00", "kind": "readme", "missing": false, "url": "https://github.com/jspahrsummers/libextobjc"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:08:51.457963+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-29T18:20:26.233943+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "e8f68a0a1d75a41d9a95099163b306cd80b0c9871fddadd40b52d7adb63f3cf2", "fetched_at": "2026-08-28T04:08:51.457963+00:00", "kind": "readme", "missing": false, "url": "https://github.com/jspahrsummers/libextobjc"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-29T18:20:26.233943+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "e8f68a0a1d75a41d9a95099163b306cd80b0c9871fddadd40b52d7adb63f3cf2", "fetched_at": "2026-08-28T04:08:51.457963+00:00", "kind": "readme", "missing": false, "url": "https://github.com/jspahrsummers/libextobjc"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:08:51.457963+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:08:51.457963+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:08:51.457963+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-29T18:20:26.233943+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "e8f68a0a1d75a41d9a95099163b306cd80b0c9871fddadd40b52d7adb63f3cf2", "fetched_at": "2026-08-28T04:08:51.457963+00:00", "kind": "readme", "missing": false, "url": "https://github.com/jspahrsummers/libextobjc"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:08:51.457963+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:08:51.457963+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-29T18:20:26.233943+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "e8f68a0a1d75a41d9a95099163b306cd80b0c9871fddadd40b52d7adb63f3cf2", "fetched_at": "2026-08-28T04:08:51.457963+00:00", "kind": "readme", "missing": false, "url": "https://github.com/jspahrsummers/libextobjc"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:08:51.457963+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:08:51.457963+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:08:51.457963+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-29T18:20:26.233943+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "e8f68a0a1d75a41d9a95099163b306cd80b0c9871fddadd40b52d7adb63f3cf2", "fetched_at": "2026-08-28T04:08:51.457963+00:00", "kind": "readme", "missing": false, "url": "https://github.com/jspahrsummers/libextobjc"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:08:51.457963+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:08:51.457963+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-29T18:20:26.233943+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "e8f68a0a1d75a41d9a95099163b306cd80b0c9871fddadd40b52d7adb63f3cf2", "fetched_at": "2026-08-28T04:08:51.457963+00:00", "kind": "readme", "missing": false, "url": "https://github.com/jspahrsummers/libextobjc"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-29T18:20:26.233943+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "e8f68a0a1d75a41d9a95099163b306cd80b0c9871fddadd40b52d7adb63f3cf2", "fetched_at": "2026-08-28T04:08:51.457963+00:00", "kind": "readme", "missing": false, "url": "https://github.com/jspahrsummers/libextobjc"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-29T18:20:26.233943+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "e8f68a0a1d75a41d9a95099163b306cd80b0c9871fddadd40b52d7adb63f3cf2", "fetched_at": "2026-08-28T04:08:51.457963+00:00", "kind": "readme", "missing": false, "url": "https://github.com/jspahrsummers/libextobjc"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-29T18:20:26.233943+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "e8f68a0a1d75a41d9a95099163b306cd80b0c9871fddadd40b52d7adb63f3cf2", "fetched_at": "2026-08-28T04:08:51.457963+00:00", "kind": "readme", "missing": false, "url": "https://github.com/jspahrsummers/libextobjc"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 0, "longevity": 100, "rhythm": 8}, "computed_at": "2026-09-02T17:46:02.011165+00:00", "flags": ["archived"], "formula": "round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)", "inputs": {"age_days": 5659, "days_push": 2689, "days_rel": null, "gap_med": null, "n_releases_24m": 0}, "score": 10, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}