{
  "_id": "6a226ae9cd65a98ecbd4666c",
  "Package": "lobstr",
  "Title": "Visualize R Data Structures with Trees",
  "Version": "1.2.1.9000",
  "Authors@R": "c(\nperson(\"Hadley\", \"Wickham\", , \"hadley@posit.co\", role = c(\"aut\", \"cre\")),\nperson(\"Posit Software, PBC\", role = c(\"cph\", \"fnd\"))\n)",
  "Description": "A set of tools for inspecting and understanding R data\nstructures inspired by str(). Includes ast() for visualizing\nabstract syntax trees, ref() for showing shared references,\ncst() for showing call stack trees, and obj_size() for\ncomputing object sizes.",
  "License": "MIT + file LICENSE",
  "URL": "https://lobstr.r-lib.org/, https://github.com/r-lib/lobstr",
  "BugReports": "https://github.com/r-lib/lobstr/issues",
  "Config/Needs/website": "tidyverse/tidytemplate",
  "Config/testthat/edition": "3",
  "Encoding": "UTF-8",
  "Roxygen": "list(markdown = TRUE)",
  "RoxygenNote": "7.3.3",
  "Config/build/compilation-database": "true",
  "Repository": "https://r-lib.r-universe.dev",
  "Date/Publication": "2026-04-07 08:08:03 UTC",
  "RemoteUrl": "https://github.com/r-lib/lobstr",
  "RemoteRef": "HEAD",
  "RemoteSha": "85dd18d43e4612f98b05bb93019a7b12fb0bbf6b",
  "NeedsCompilation": "yes",
  "Packaged": {
    "Date": "2026-06-05 06:15:21 UTC",
    "User": "root"
  },
  "Author": "Hadley Wickham [aut, cre],\nPosit Software, PBC [cph, fnd]",
  "Maintainer": "Hadley Wickham <hadley@posit.co>",
  "MD5sum": "470d381b83c06d21db185e092c56853a",
  "_user": "r-lib",
  "_type": "src",
  "_file": "lobstr_1.2.1.9000.tar.gz",
  "_fileid": "c1165d6d29390545bfe0c11a81e0d5a89603be30f6604e7ec1e306bef796ba2b",
  "_filesize": 260568,
  "_sha256": "c1165d6d29390545bfe0c11a81e0d5a89603be30f6604e7ec1e306bef796ba2b",
  "_created": "2026-06-05T06:15:21.000Z",
  "_published": "2026-06-05T06:21:29.672Z",
  "_distro": "noble",
  "_jobs": [
    {
      "job": 79674540659,
      "time": 134,
      "config": "linux-devel-arm64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "7430088759"
    },
    {
      "job": 79674540553,
      "time": 159,
      "config": "linux-devel-x86_64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "7430093875"
    },
    {
      "job": 79674540516,
      "time": 124,
      "config": "linux-release-arm64",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "7430086490"
    },
    {
      "job": 79674540608,
      "time": 132,
      "config": "linux-release-x86_64",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "7430087555"
    },
    {
      "job": 79674540640,
      "time": 110,
      "config": "macos-oldrel-arm64",
      "r": "4.5.3",
      "check": "NOTE",
      "artifact": "7430116317"
    },
    {
      "job": 79674540511,
      "time": 230,
      "config": "macos-oldrel-x86_64",
      "r": "4.5.3",
      "check": "NOTE",
      "artifact": "7430133356"
    },
    {
      "job": 79674540542,
      "time": 92,
      "config": "macos-release-arm64",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "7430098368"
    },
    {
      "job": 79674540510,
      "time": 212,
      "config": "macos-release-x86_64",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "7430125208"
    },
    {
      "job": 79674246349,
      "time": 157,
      "config": "source",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "7430057063"
    },
    {
      "job": 79674540496,
      "time": 121,
      "config": "wasm-release",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "7430085381"
    },
    {
      "job": 79674540693,
      "time": 121,
      "config": "windows-devel",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "7430086205"
    },
    {
      "job": 79674540527,
      "time": 95,
      "config": "windows-oldrel",
      "r": "4.5.3",
      "check": "NOTE",
      "artifact": "7430079462"
    },
    {
      "job": 79674540508,
      "time": 100,
      "config": "windows-release",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "7430080366"
    }
  ],
  "_buildurl": "https://github.com/r-universe/r-lib/actions/runs/26998789489",
  "_status": "success",
  "_host": "GitHub-Actions",
  "_upstream": "https://github.com/r-lib/lobstr",
  "_commit": {
    "id": "85dd18d43e4612f98b05bb93019a7b12fb0bbf6b",
    "author": "Lionel Henry <lionel.hry@proton.me>",
    "committer": "Lionel Henry <lionel.hry@proton.me>",
    "message": "Increment version number to 1.2.1.9000\n",
    "time": 1775549283
  },
  "_maintainer": {
    "name": "Hadley Wickham",
    "email": "hadley@posit.co",
    "login": "hadley",
    "bluesky": "@hadley.nz",
    "description": "Chief Scientist at @posit-pbc",
    "uuid": 4196
  },
  "_registered": true,
  "_dependencies": [
    {
      "package": "R",
      "version": ">= 3.6.0",
      "role": "Depends"
    },
    {
      "package": "cpp11",
      "version": ">= 0.4.2",
      "role": "LinkingTo"
    },
    {
      "package": "crayon",
      "role": "Imports"
    },
    {
      "package": "methods",
      "role": "Imports"
    },
    {
      "package": "prettyunits",
      "role": "Imports"
    },
    {
      "package": "rlang",
      "version": ">= 1.0.0",
      "role": "Imports"
    },
    {
      "package": "covr",
      "role": "Suggests"
    },
    {
      "package": "pillar",
      "role": "Suggests"
    },
    {
      "package": "pkgdown",
      "role": "Suggests"
    },
    {
      "package": "testthat",
      "version": ">= 3.0.0",
      "role": "Suggests"
    }
  ],
  "_owner": "r-lib",
  "_selfowned": true,
  "_usedby": 63,
  "_updates": [
    {
      "week": "2025-46",
      "n": 12
    },
    {
      "week": "2026-06",
      "n": 1
    },
    {
      "week": "2026-07",
      "n": 8
    },
    {
      "week": "2026-08",
      "n": 4
    },
    {
      "week": "2026-15",
      "n": 2
    }
  ],
  "_tags": [
    {
      "name": "v1.1.3",
      "date": "2025-11-14"
    },
    {
      "name": "v1.2.0",
      "date": "2026-02-19"
    },
    {
      "name": "v1.2.1",
      "date": "2026-04-07"
    }
  ],
  "_stars": 314,
  "_contributors": [
    {
      "user": "hadley",
      "count": 222,
      "uuid": 4196
    },
    {
      "user": "lionel-",
      "count": 72,
      "uuid": 4465050
    },
    {
      "user": "nstrayer",
      "count": 66,
      "uuid": 6764693
    },
    {
      "user": "jimhester",
      "count": 8,
      "uuid": 205275
    },
    {
      "user": "batpigandme",
      "count": 3,
      "uuid": 831732
    },
    {
      "user": "yutannihilation",
      "count": 1,
      "uuid": 1978793
    },
    {
      "user": "bisaloo",
      "count": 1,
      "uuid": 10783929
    },
    {
      "user": "jeroenjanssens",
      "count": 1,
      "uuid": 1368256
    },
    {
      "user": "jmcphers",
      "count": 1,
      "uuid": 470418
    },
    {
      "user": "krlmlr",
      "count": 1,
      "uuid": 1741643
    },
    {
      "user": "samrickman",
      "count": 1,
      "uuid": 46163241
    },
    {
      "user": "terrytangyuan",
      "count": 1,
      "uuid": 4269898
    }
  ],
  "_userbio": {
    "uuid": 22618716,
    "type": "organization",
    "name": "R infrastructure"
  },
  "_downloads": {
    "count": 64550,
    "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/lobstr"
  },
  "_devurl": "https://github.com/r-lib/lobstr",
  "_pkgdown": "https://lobstr.r-lib.org/",
  "_searchresults": 896,
  "_topics": [
    "cpp"
  ],
  "_rbuild": "4.6.0",
  "_assets": [
    "extra/citation.cff",
    "extra/citation.html",
    "extra/citation.json",
    "extra/citation.txt",
    "extra/contents.json",
    "extra/lobstr.html",
    "extra/NEWS.html",
    "extra/NEWS.txt",
    "extra/readme.html",
    "extra/readme.md",
    "manual.pdf"
  ],
  "_homeurl": "https://github.com/r-lib/lobstr",
  "_realowner": "r-lib",
  "_cranurl": true,
  "_releases": [
    {
      "version": "1.0.0",
      "date": "2018-11-04"
    },
    {
      "version": "1.0.1",
      "date": "2018-12-21"
    },
    {
      "version": "1.1.0",
      "date": "2019-06-19"
    },
    {
      "version": "1.1.1",
      "date": "2019-07-03"
    },
    {
      "version": "1.1.2",
      "date": "2022-06-23"
    },
    {
      "version": "1.1.3",
      "date": "2025-11-14"
    },
    {
      "version": "1.2.0",
      "date": "2026-02-18"
    },
    {
      "version": "1.2.1",
      "date": "2026-04-04"
    }
  ],
  "_exports": [
    "ast",
    "cst",
    "mem_used",
    "obj_addr",
    "obj_addrs",
    "obj_size",
    "obj_sizes",
    "ref",
    "src",
    "sxp",
    "tree",
    "tree_label"
  ],
  "_help": [
    {
      "page": "ast",
      "title": "Display the abstract syntax tree",
      "concept": [
        "object inspectors"
      ],
      "topics": [
        "ast"
      ]
    },
    {
      "page": "cst",
      "title": "Call stack tree",
      "topics": [
        "cst"
      ]
    },
    {
      "page": "mem_used",
      "title": "How much memory is currently used by R?",
      "topics": [
        "mem_used"
      ]
    },
    {
      "page": "obj_addr",
      "title": "Find memory location of objects and their children.",
      "topics": [
        "obj_addr",
        "obj_addrs"
      ]
    },
    {
      "page": "obj_size",
      "title": "Calculate the size of an object.",
      "topics": [
        "obj_size",
        "obj_sizes"
      ]
    },
    {
      "page": "ref",
      "title": "Display tree of references",
      "concept": [
        "object inspectors"
      ],
      "topics": [
        "ref"
      ]
    },
    {
      "page": "src",
      "title": "Display tree of source references",
      "concept": [
        "object inspectors"
      ],
      "topics": [
        "src"
      ]
    },
    {
      "page": "sxp",
      "title": "Inspect an object",
      "concept": [
        "object inspectors"
      ],
      "topics": [
        "sxp"
      ]
    },
    {
      "page": "tree",
      "title": "Pretty tree-like object printing",
      "topics": [
        "tree"
      ]
    },
    {
      "page": "tree_label",
      "title": "Build element or node label in tree",
      "topics": [
        "tree_label"
      ]
    }
  ],
  "_pkglogo": "https://github.com/r-lib/lobstr/raw/HEAD/man/figures/logo.png",
  "_readme": "https://github.com/r-lib/lobstr/raw/HEAD/README.md",
  "_rundeps": [
    "cpp11",
    "crayon",
    "prettyunits",
    "rlang"
  ],
  "_sysdeps": [
    {
      "shlib": "libstdc++",
      "package": "libstdc++6",
      "source": "gcc",
      "version": "14.2.0-4ubuntu2~24.04.1",
      "name": "c++",
      "homepage": "http://gcc.gnu.org/",
      "description": "GNU Standard C++ Library v3"
    }
  ],
  "_score": 12.974928402341288,
  "_indexed": true,
  "_nocasepkg": "lobstr",
  "_universes": [
    "r-lib",
    "hadley"
  ],
  "_binaries": [
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "1.2.1.9000",
      "date": "2026-06-05T06:17:40.000Z",
      "distro": "noble",
      "arch": "aarch64",
      "commit": "85dd18d43e4612f98b05bb93019a7b12fb0bbf6b",
      "fileid": "61c13865ad1a9e65dad162d4dc73a96ada23f7f8ce42825b7157c197709ffe93",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/r-lib/actions/runs/26998789489"
    },
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "1.2.1.9000",
      "date": "2026-06-05T06:18:03.000Z",
      "distro": "noble",
      "arch": "x86_64",
      "commit": "85dd18d43e4612f98b05bb93019a7b12fb0bbf6b",
      "fileid": "fbb7023fd43b4e5e1d7a52817ff5604f5ed82daf330941f7ef6acb85e84ae569",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/r-lib/actions/runs/26998789489"
    },
    {
      "r": "4.6.0",
      "os": "linux",
      "version": "1.2.1.9000",
      "date": "2026-06-05T06:17:32.000Z",
      "distro": "noble",
      "arch": "aarch64",
      "commit": "85dd18d43e4612f98b05bb93019a7b12fb0bbf6b",
      "fileid": "ff5193481e26c968ede012e93ca7462c3483fd3953e5887920330c7672130643",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/r-lib/actions/runs/26998789489"
    },
    {
      "r": "4.6.0",
      "os": "linux",
      "version": "1.2.1.9000",
      "date": "2026-06-05T06:17:33.000Z",
      "distro": "noble",
      "arch": "x86_64",
      "commit": "85dd18d43e4612f98b05bb93019a7b12fb0bbf6b",
      "fileid": "a2fb63c3f45069cbffb985ca3fe20dd048020c65ca5a73139eaf1a99e0a542a8",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/r-lib/actions/runs/26998789489"
    },
    {
      "r": "4.5.3",
      "os": "mac",
      "version": "1.2.1.9000",
      "date": "2026-06-05T06:19:39.000Z",
      "arch": "aarch64",
      "commit": "85dd18d43e4612f98b05bb93019a7b12fb0bbf6b",
      "fileid": "de0200548ea5349963be0f9b55172e06bdd193e6cbbb31d38553b94a0461f5b1",
      "status": "success",
      "check": "NOTE",
      "buildurl": "https://github.com/r-universe/r-lib/actions/runs/26998789489"
    },
    {
      "r": "4.5.3",
      "os": "mac",
      "version": "1.2.1.9000",
      "date": "2026-06-05T06:20:21.000Z",
      "arch": "x86_64",
      "commit": "85dd18d43e4612f98b05bb93019a7b12fb0bbf6b",
      "fileid": "d42958fac65406bef9bad950905c2181a08a76daad8e1ee13dfe6f089616d2a6",
      "status": "success",
      "check": "NOTE",
      "buildurl": "https://github.com/r-universe/r-lib/actions/runs/26998789489"
    },
    {
      "r": "4.6.0",
      "os": "mac",
      "version": "1.2.1.9000",
      "date": "2026-06-05T06:18:22.000Z",
      "arch": "aarch64",
      "commit": "85dd18d43e4612f98b05bb93019a7b12fb0bbf6b",
      "fileid": "2a465f183fa2c48f91e123fe8aea1a94d43339c596cbab683741dd480668f993",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/r-lib/actions/runs/26998789489"
    },
    {
      "r": "4.6.0",
      "os": "mac",
      "version": "1.2.1.9000",
      "date": "2026-06-05T06:19:34.000Z",
      "arch": "x86_64",
      "commit": "85dd18d43e4612f98b05bb93019a7b12fb0bbf6b",
      "fileid": "d2d3f6a64c20a31c48acdeb48046756e318809c637d6cb32f9e9c5c019bfa3aa",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/r-lib/actions/runs/26998789489"
    },
    {
      "r": "4.6.0",
      "os": "wasm",
      "version": "1.2.1.9000",
      "date": "2026-06-05T06:17:37.000Z",
      "arch": "emscripten",
      "commit": "85dd18d43e4612f98b05bb93019a7b12fb0bbf6b",
      "fileid": "3039ba1efad8be8d1214d9f2d4c43159ddea84a77ad54880cbfa7d69374447b0",
      "status": "success",
      "buildurl": "https://github.com/r-universe/r-lib/actions/runs/26998789489"
    },
    {
      "r": "4.7.0",
      "os": "win",
      "version": "1.2.1.9000",
      "date": "2026-06-05T06:16:53.000Z",
      "arch": "x86_64",
      "commit": "85dd18d43e4612f98b05bb93019a7b12fb0bbf6b",
      "fileid": "a83a56e9667cda96c667e049407a0c2151d9aefed7091020c2790521ebc34d31",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/r-lib/actions/runs/26998789489"
    },
    {
      "r": "4.5.3",
      "os": "win",
      "version": "1.2.1.9000",
      "date": "2026-06-05T06:16:33.000Z",
      "arch": "x86_64",
      "commit": "85dd18d43e4612f98b05bb93019a7b12fb0bbf6b",
      "fileid": "0590c0d5e2356af8687d4bb8c5995ad1a8c57fdec5746e355603011765c4ed71",
      "status": "success",
      "check": "NOTE",
      "buildurl": "https://github.com/r-universe/r-lib/actions/runs/26998789489"
    },
    {
      "r": "4.6.0",
      "os": "win",
      "version": "1.2.1.9000",
      "date": "2026-06-05T06:16:36.000Z",
      "arch": "x86_64",
      "commit": "85dd18d43e4612f98b05bb93019a7b12fb0bbf6b",
      "fileid": "3862092a993e2328471eb9b4b6f02a0bbbe63687ecc054652b8abcb3a8afe69a",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/r-lib/actions/runs/26998789489"
    }
  ]
}