{"version":3,"file":"index.js","sources":["../src/util.ts","../src/index.ts"],"sourcesContent":["import { skipTransparentExprWrappers } from \"@babel/helper-skip-transparent-expression-wrappers\";\nimport type { NodePath } from \"@babel/traverse\";\nimport { types as t } from \"@babel/core\";\n// https://crbug.com/v8/11558\n\n// check if there is a spread element followed by another argument.\n// (...[], 0) or (...[], ...[])\n\nfunction matchAffectedArguments(argumentNodes: t.CallExpression[\"arguments\"]) {\n  const spreadIndex = argumentNodes.findIndex(node => t.isSpreadElement(node));\n  return spreadIndex >= 0 && spreadIndex !== argumentNodes.length - 1;\n}\n\n/**\n * Check whether the optional chain is affected by https://crbug.com/v8/11558.\n * This routine MUST not manipulate NodePath\n *\n * @export\n * @param {(NodePath<t.OptionalMemberExpression | t.OptionalCallExpression>)} path\n * @returns {boolean}\n */\nexport function shouldTransform(\n  path: NodePath<t.OptionalMemberExpression | t.OptionalCallExpression>,\n): boolean {\n  let optionalPath: NodePath<t.Expression> = path;\n  const chains: (t.OptionalCallExpression | t.OptionalMemberExpression)[] = [];\n  for (;;) {\n    if (optionalPath.isOptionalMemberExpression()) {\n      chains.push(optionalPath.node);\n      optionalPath = skipTransparentExprWrappers(optionalPath.get(\"object\"));\n    } else if (optionalPath.isOptionalCallExpression()) {\n      chains.push(optionalPath.node);\n      optionalPath = skipTransparentExprWrappers(optionalPath.get(\"callee\"));\n    } else {\n      break;\n    }\n  }\n  for (let i = 0; i < chains.length; i++) {\n    const node = chains[i];\n    if (\n      t.isOptionalCallExpression(node) &&\n      matchAffectedArguments(node.arguments)\n    ) {\n      // f?.(...[], 0)\n      if (node.optional) {\n        return true;\n      }\n      // o?.m(...[], 0)\n      // when node.optional is false, chains[i + 1] is always well defined\n      const callee = chains[i + 1];\n      if (t.isOptionalMemberExpression(callee, { optional: true })) {\n        return true;\n      }\n    }\n  }\n  return false;\n}\n","import { declare } from \"@babel/helper-plugin-utils\";\nimport { transform } from \"@babel/plugin-proposal-optional-chaining\";\nimport { shouldTransform } from \"./util\";\nimport type { NodePath } from \"@babel/traverse\";\nimport type * as t from \"@babel/types\";\n\nexport default declare(api => {\n  api.assertVersion(7);\n\n  const noDocumentAll = (api.assumption(\"noDocumentAll\") ?? false) as boolean;\n  const pureGetters = (api.assumption(\"pureGetters\") ?? false) as boolean;\n\n  return {\n    name: \"bugfix-v8-spread-parameters-in-optional-chaining\",\n\n    visitor: {\n      \"OptionalCallExpression|OptionalMemberExpression\"(\n        path: NodePath<t.OptionalCallExpression | t.OptionalMemberExpression>,\n      ) {\n        if (shouldTransform(path)) {\n          transform(path, { noDocumentAll, pureGetters });\n        }\n      },\n    },\n  };\n});\n"],"names":["matchAffectedArguments","argumentNodes","spreadIndex","findIndex","node","t","isSpreadElement","length","shouldTransform","path","optionalPath","chains","isOptionalMemberExpression","push","skipTransparentExprWrappers","get","isOptionalCallExpression","i","arguments","optional","callee","declare","api","assertVersion","noDocumentAll","assumption","pureGetters","name","visitor","transform"],"mappings":";;;;;;;;;AAQA,SAASA,sBAAT,CAAgCC,aAAhC,EAA8E;AAC5E,EAAA,MAAMC,WAAW,GAAGD,aAAa,CAACE,SAAd,CAAwBC,IAAI,IAAIC,UAAC,CAACC,eAAF,CAAkBF,IAAlB,CAAhC,CAApB,CAAA;EACA,OAAOF,WAAW,IAAI,CAAf,IAAoBA,WAAW,KAAKD,aAAa,CAACM,MAAd,GAAuB,CAAlE,CAAA;AACD,CAAA;;AAUM,SAASC,eAAT,CACLC,IADK,EAEI;EACT,IAAIC,YAAoC,GAAGD,IAA3C,CAAA;EACA,MAAME,MAAiE,GAAG,EAA1E,CAAA;;EACA,SAAS;AACP,IAAA,IAAID,YAAY,CAACE,0BAAb,EAAJ,EAA+C;AAC7CD,MAAAA,MAAM,CAACE,IAAP,CAAYH,YAAY,CAACN,IAAzB,CAAA,CAAA;MACAM,YAAY,GAAGI,mEAA2B,CAACJ,YAAY,CAACK,GAAb,CAAiB,QAAjB,CAAD,CAA1C,CAAA;AACD,KAHD,MAGO,IAAIL,YAAY,CAACM,wBAAb,EAAJ,EAA6C;AAClDL,MAAAA,MAAM,CAACE,IAAP,CAAYH,YAAY,CAACN,IAAzB,CAAA,CAAA;MACAM,YAAY,GAAGI,mEAA2B,CAACJ,YAAY,CAACK,GAAb,CAAiB,QAAjB,CAAD,CAA1C,CAAA;AACD,KAHM,MAGA;AACL,MAAA,MAAA;AACD,KAAA;AACF,GAAA;;AACD,EAAA,KAAK,IAAIE,CAAC,GAAG,CAAb,EAAgBA,CAAC,GAAGN,MAAM,CAACJ,MAA3B,EAAmCU,CAAC,EAApC,EAAwC;AACtC,IAAA,MAAMb,IAAI,GAAGO,MAAM,CAACM,CAAD,CAAnB,CAAA;;AACA,IAAA,IACEZ,UAAC,CAACW,wBAAF,CAA2BZ,IAA3B,CAAA,IACAJ,sBAAsB,CAACI,IAAI,CAACc,SAAN,CAFxB,EAGE;MAEA,IAAId,IAAI,CAACe,QAAT,EAAmB;AACjB,QAAA,OAAO,IAAP,CAAA;AACD,OAAA;;AAGD,MAAA,MAAMC,MAAM,GAAGT,MAAM,CAACM,CAAC,GAAG,CAAL,CAArB,CAAA;;AACA,MAAA,IAAIZ,UAAC,CAACO,0BAAF,CAA6BQ,MAA7B,EAAqC;AAAED,QAAAA,QAAQ,EAAE,IAAA;AAAZ,OAArC,CAAJ,EAA8D;AAC5D,QAAA,OAAO,IAAP,CAAA;AACD,OAAA;AACF,KAAA;AACF,GAAA;;AACD,EAAA,OAAO,KAAP,CAAA;AACD;;AClDD,YAAeE,yBAAO,CAACC,GAAG,IAAI;AAAA,EAAA,IAAA,eAAA,EAAA,gBAAA,CAAA;;EAC5BA,GAAG,CAACC,aAAJ,CAAkB,CAAlB,CAAA,CAAA;EAEA,MAAMC,aAAa,sBAAIF,GAAG,CAACG,UAAJ,CAAe,eAAf,CAAJ,KAAA,IAAA,GAAA,eAAA,GAAuC,KAA1D,CAAA;EACA,MAAMC,WAAW,uBAAIJ,GAAG,CAACG,UAAJ,CAAe,aAAf,CAAJ,KAAA,IAAA,GAAA,gBAAA,GAAqC,KAAtD,CAAA;EAEA,OAAO;AACLE,IAAAA,IAAI,EAAE,kDADD;AAGLC,IAAAA,OAAO,EAAE;AACP,MAAA,iDAAA,CACEnB,IADF,EAEE;AACA,QAAA,IAAID,eAAe,CAACC,IAAD,CAAnB,EAA2B;UACzBoB,wCAAS,CAACpB,IAAD,EAAO;YAAEe,aAAF;AAAiBE,YAAAA,WAAAA;AAAjB,WAAP,CAAT,CAAA;AACD,SAAA;AACF,OAAA;;AAPM,KAAA;GAHX,CAAA;AAaD,CAnBqB,CAAtB;;;;"}