{"version":3,"names":["LOADED_PLUGIN","blockHoistPlugin","name","visitor","Block","exit","node","body","max","hasChange","i","length","n","p","priority","stableSort","slice","loadBlockHoistPlugin","Plugin","traverse","explode","bodyNode","_blockHoist","buckets","Object","create","bucket","push","keys","map","k","sort","a","b","index","key"],"sources":["../../src/transformation/block-hoist-plugin.ts"],"sourcesContent":["import traverse from \"@babel/traverse\";\nimport type { Statement } from \"@babel/types\";\nimport type { PluginObject } from \"../config\";\nimport Plugin from \"../config/plugin\";\n\nlet LOADED_PLUGIN: Plugin | void;\n\nconst blockHoistPlugin: PluginObject = {\n  /**\n   * [Please add a description.]\n   *\n   * Priority:\n   *\n   *  - 0 We want this to be at the **very** bottom\n   *  - 1 Default node position\n   *  - 2 Priority over normal nodes\n   *  - 3 We want this to be at the **very** top\n   *  - 4 Reserved for the helpers used to implement module imports.\n   */\n\n  name: \"internal.blockHoist\",\n\n  visitor: {\n    Block: {\n      exit({ node }) {\n        const { body } = node;\n\n        // Largest SMI\n        let max = 2 ** 30 - 1;\n        let hasChange = false;\n        for (let i = 0; i < body.length; i++) {\n          const n = body[i];\n          const p = priority(n);\n          if (p > max) {\n            hasChange = true;\n            break;\n          }\n          max = p;\n        }\n        if (!hasChange) return;\n\n        // My kingdom for a stable sort!\n        node.body = stableSort(body.slice());\n      },\n    },\n  },\n};\n\nexport default function loadBlockHoistPlugin(): Plugin {\n  if (!LOADED_PLUGIN) {\n    // cache the loaded blockHoist plugin plugin\n    LOADED_PLUGIN = new Plugin(\n      {\n        ...blockHoistPlugin,\n        visitor: traverse.explode(blockHoistPlugin.visitor),\n      },\n      {},\n    );\n  }\n\n  return LOADED_PLUGIN;\n}\n\nfunction priority(bodyNode: Statement & { _blockHoist?: number | true }) {\n  const priority = bodyNode?._blockHoist;\n  if (priority == null) return 1;\n  if (priority === true) return 2;\n  return priority;\n}\n\nfunction stableSort(body: Statement[]) {\n  // By default, we use priorities of 0-4.\n  const buckets = Object.create(null);\n\n  // By collecting into buckets, we can guarantee a stable sort.\n  for (let i = 0; i < body.length; i++) {\n    const n = body[i];\n    const p = priority(n);\n\n    // In case some plugin is setting an unexpected priority.\n    const bucket = buckets[p] || (buckets[p] = []);\n    bucket.push(n);\n  }\n\n  // Sort our keys in descending order. Keys are unique, so we don't have to\n  // worry about stability.\n  const keys = Object.keys(buckets)\n    .map(k => +k)\n    .sort((a, b) => b - a);\n\n  let index = 0;\n  for (const key of keys) {\n    const bucket = buckets[key];\n    for (const n of bucket) {\n      body[index++] = n;\n    }\n  }\n  return body;\n}\n"],"mappings":";;;;;;AAAA;EAAA;EAAA;IAAA;EAAA;EAAA;AAAA;AAGA;AAEA,IAAIA,aAA4B;AAEhC,MAAMC,gBAA8B,GAAG;EAarCC,IAAI,EAAE,qBAAqB;EAE3BC,OAAO,EAAE;IACPC,KAAK,EAAE;MACLC,IAAI,CAAC;QAAEC;MAAK,CAAC,EAAE;QACb,MAAM;UAAEC;QAAK,CAAC,GAAGD,IAAI;QAGrB,IAAIE,GAAG,GAAG,UAAC,EAAI,EAAE,IAAG,CAAC;QACrB,IAAIC,SAAS,GAAG,KAAK;QACrB,KAAK,IAAIC,CAAC,GAAG,CAAC,EAAEA,CAAC,GAAGH,IAAI,CAACI,MAAM,EAAED,CAAC,EAAE,EAAE;UACpC,MAAME,CAAC,GAAGL,IAAI,CAACG,CAAC,CAAC;UACjB,MAAMG,CAAC,GAAGC,QAAQ,CAACF,CAAC,CAAC;UACrB,IAAIC,CAAC,GAAGL,GAAG,EAAE;YACXC,SAAS,GAAG,IAAI;YAChB;UACF;UACAD,GAAG,GAAGK,CAAC;QACT;QACA,IAAI,CAACJ,SAAS,EAAE;QAGhBH,IAAI,CAACC,IAAI,GAAGQ,UAAU,CAACR,IAAI,CAACS,KAAK,EAAE,CAAC;MACtC;IACF;EACF;AACF,CAAC;AAEc,SAASC,oBAAoB,GAAW;EACrD,IAAI,CAACjB,aAAa,EAAE;IAElBA,aAAa,GAAG,IAAIkB,eAAM,mBAEnBjB,gBAAgB;MACnBE,OAAO,EAAEgB,mBAAQ,CAACC,OAAO,CAACnB,gBAAgB,CAACE,OAAO;IAAC,IAErD,CAAC,CAAC,CACH;EACH;EAEA,OAAOH,aAAa;AACtB;AAEA,SAASc,QAAQ,CAACO,QAAqD,EAAE;EACvE,MAAMP,QAAQ,GAAGO,QAAQ,oBAARA,QAAQ,CAAEC,WAAW;EACtC,IAAIR,QAAQ,IAAI,IAAI,EAAE,OAAO,CAAC;EAC9B,IAAIA,QAAQ,KAAK,IAAI,EAAE,OAAO,CAAC;EAC/B,OAAOA,QAAQ;AACjB;AAEA,SAASC,UAAU,CAACR,IAAiB,EAAE;EAErC,MAAMgB,OAAO,GAAGC,MAAM,CAACC,MAAM,CAAC,IAAI,CAAC;EAGnC,KAAK,IAAIf,CAAC,GAAG,CAAC,EAAEA,CAAC,GAAGH,IAAI,CAACI,MAAM,EAAED,CAAC,EAAE,EAAE;IACpC,MAAME,CAAC,GAAGL,IAAI,CAACG,CAAC,CAAC;IACjB,MAAMG,CAAC,GAAGC,QAAQ,CAACF,CAAC,CAAC;IAGrB,MAAMc,MAAM,GAAGH,OAAO,CAACV,CAAC,CAAC,KAAKU,OAAO,CAACV,CAAC,CAAC,GAAG,EAAE,CAAC;IAC9Ca,MAAM,CAACC,IAAI,CAACf,CAAC,CAAC;EAChB;EAIA,MAAMgB,IAAI,GAAGJ,MAAM,CAACI,IAAI,CAACL,OAAO,CAAC,CAC9BM,GAAG,CAACC,CAAC,IAAI,CAACA,CAAC,CAAC,CACZC,IAAI,CAAC,CAACC,CAAC,EAAEC,CAAC,KAAKA,CAAC,GAAGD,CAAC,CAAC;EAExB,IAAIE,KAAK,GAAG,CAAC;EACb,KAAK,MAAMC,GAAG,IAAIP,IAAI,EAAE;IACtB,MAAMF,MAAM,GAAGH,OAAO,CAACY,GAAG,CAAC;IAC3B,KAAK,MAAMvB,CAAC,IAAIc,MAAM,EAAE;MACtBnB,IAAI,CAAC2B,KAAK,EAAE,CAAC,GAAGtB,CAAC;IACnB;EACF;EACA,OAAOL,IAAI;AACb;AAAC"}