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3.9 KiB
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3.9 KiB
{"version":3,"names":["_core","require","helper","template","statement","helperIDs","WeakMap","addCallSuperHelper","file","has","t","cloneNode","clone","get","addHelper","_unused","id","scope","generateUidIdentifier","set","fn","CALL_SUPER","GET_PROTOTYPE_OF","POSSIBLE_CONSTRUCTOR_RETURN","path","unshiftContainer","registerDeclaration"],"sources":["../src/inline-callSuper-helpers.ts"],"sourcesContent":["import { template, types as t, type File } from \"@babel/core\";\n\nconst helper = template.statement`\n function CALL_SUPER(\n _this,\n derived,\n args,\n ) {\n function isNativeReflectConstruct() {\n if (typeof Reflect === \"undefined\" || !Reflect.construct) return false;\n\n // core-js@3\n if (Reflect.construct.sham) return false;\n\n // Proxy can't be polyfilled. Every browser implemented\n // proxies before or at the same time as Reflect.construct,\n // so if they support Proxy they also support Reflect.construct.\n if (typeof Proxy === \"function\") return true;\n\n // Since Reflect.construct can't be properly polyfilled, some\n // implementations (e.g. core-js@2) don't set the correct internal slots.\n // Those polyfills don't allow us to subclass built-ins, so we need to\n // use our fallback implementation.\n try {\n // If the internal slots aren't set, this throws an error similar to\n // TypeError: this is not a Boolean object.\n return !Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {}),);\n } catch (e) {\n return false;\n }\n }\n\n // Super\n derived = GET_PROTOTYPE_OF(derived);\n return POSSIBLE_CONSTRUCTOR_RETURN(\n _this,\n isNativeReflectConstruct()\n ? // NOTE: This doesn't work if this.__proto__.constructor has been modified.\n Reflect.construct(\n derived,\n args || [],\n GET_PROTOTYPE_OF(_this).constructor,\n )\n : derived.apply(_this, args),\n );\n }\n`;\n\nconst helperIDs = new WeakMap();\n\nexport default function addCallSuperHelper(file: File) {\n if (helperIDs.has(file)) {\n // TODO: Only use t.cloneNode in Babel 8\n // t.cloneNode isn't supported in every version\n return (t.cloneNode || t.clone)(helperIDs.get(file));\n }\n\n try {\n return file.addHelper(\"callSuper\");\n } catch {\n // old Babel doesn't support the helper.\n }\n\n const id = file.scope.generateUidIdentifier(\"callSuper\");\n helperIDs.set(file, id);\n\n const fn = helper({\n CALL_SUPER: id,\n GET_PROTOTYPE_OF: file.addHelper(\"getPrototypeOf\"),\n POSSIBLE_CONSTRUCTOR_RETURN: file.addHelper(\"possibleConstructorReturn\"),\n });\n\n file.path.unshiftContainer(\"body\", [fn]);\n file.scope.registerDeclaration(file.path.get(\"body.0\"));\n\n return t.cloneNode(id);\n}\n"],"mappings":";;;;;;AAAA,IAAAA,KAAA,GAAAC,OAAA;AAEA,MAAMC,MAAM,GAAGC,cAAQ,CAACC,SAAS;AACjC;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,CAAC;AAED,MAAMC,SAAS,GAAG,IAAIC,OAAO,CAAC,CAAC;AAEhB,SAASC,kBAAkBA,CAACC,IAAU,EAAE;EACrD,IAAIH,SAAS,CAACI,GAAG,CAACD,IAAI,CAAC,EAAE;IAGvB,OAAO,CAACE,WAAC,CAACC,SAAS,IAAID,WAAC,CAACE,KAAK,EAAEP,SAAS,CAACQ,GAAG,CAACL,IAAI,CAAC,CAAC;EACtD;EAEA,IAAI;IACF,OAAOA,IAAI,CAACM,SAAS,CAAC,WAAW,CAAC;EACpC,CAAC,CAAC,OAAAC,OAAA,EAAM,CAER;EAEA,MAAMC,EAAE,GAAGR,IAAI,CAACS,KAAK,CAACC,qBAAqB,CAAC,WAAW,CAAC;EACxDb,SAAS,CAACc,GAAG,CAACX,IAAI,EAAEQ,EAAE,CAAC;EAEvB,MAAMI,EAAE,GAAGlB,MAAM,CAAC;IAChBmB,UAAU,EAAEL,EAAE;IACdM,gBAAgB,EAAEd,IAAI,CAACM,SAAS,CAAC,gBAAgB,CAAC;IAClDS,2BAA2B,EAAEf,IAAI,CAACM,SAAS,CAAC,2BAA2B;EACzE,CAAC,CAAC;EAEFN,IAAI,CAACgB,IAAI,CAACC,gBAAgB,CAAC,MAAM,EAAE,CAACL,EAAE,CAAC,CAAC;EACxCZ,IAAI,CAACS,KAAK,CAACS,mBAAmB,CAAClB,IAAI,CAACgB,IAAI,CAACX,GAAG,CAAC,QAAQ,CAAC,CAAC;EAEvD,OAAOH,WAAC,CAACC,SAAS,CAACK,EAAE,CAAC;AACxB","ignoreList":[]} |