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1.5 KiB
{"version":3,"names":["_core","require","_traverse","rewriteThisVisitor","rewriteThis","programPath","visitors","environmentVisitor","ThisExpression","path","replaceWith","t","unaryExpression","numericLiteral","noScope","traverse","node"],"sources":["../src/rewrite-this.ts"],"sourcesContent":["import { types as t } from \"@babel/core\";\nimport traverse, { visitors, type NodePath } from \"@babel/traverse\";\n\n/**\n * A lazily constructed visitor to walk the tree, rewriting all `this` references in the\n * top-level scope to be `void 0` (undefined).\n *\n */\nlet rewriteThisVisitor: Parameters<typeof traverse>[1];\n\nexport default function rewriteThis(programPath: NodePath) {\n if (!rewriteThisVisitor) {\n rewriteThisVisitor = visitors.environmentVisitor({\n ThisExpression(path) {\n path.replaceWith(t.unaryExpression(\"void\", t.numericLiteral(0), true));\n },\n });\n rewriteThisVisitor.noScope = true;\n }\n // Rewrite \"this\" to be \"undefined\".\n traverse(programPath.node, rewriteThisVisitor);\n}\n"],"mappings":";;;;;;AAAA,IAAAA,KAAA,GAAAC,OAAA;AACA,IAAAC,SAAA,GAAAD,OAAA;AAOA,IAAIE,kBAAkD;AAEvC,SAASC,WAAWA,CAACC,WAAqB,EAAE;EACzD,IAAI,CAACF,kBAAkB,EAAE;IACvBA,kBAAkB,GAAGG,kBAAQ,CAACC,kBAAkB,CAAC;MAC/CC,cAAcA,CAACC,IAAI,EAAE;QACnBA,IAAI,CAACC,WAAW,CAACC,WAAC,CAACC,eAAe,CAAC,MAAM,EAAED,WAAC,CAACE,cAAc,CAAC,CAAC,CAAC,EAAE,IAAI,CAAC,CAAC;MACxE;IACF,CAAC,CAAC;IACFV,kBAAkB,CAACW,OAAO,GAAG,IAAI;EACnC;EAEA,IAAAC,iBAAQ,EAACV,WAAW,CAACW,IAAI,EAAEb,kBAAkB,CAAC;AAChD","ignoreList":[]} |