You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

1 line
12 KiB
Plaintext

This file contains ambiguous Unicode characters!

This file contains ambiguous Unicode characters that may be confused with others in your current locale. If your use case is intentional and legitimate, you can safely ignore this warning. Use the Escape button to highlight these characters.

{"version":3,"names":["_sourceMap","require","_printer","Generator","Printer","constructor","ast","opts","code","format","normalizeOptions","map","sourceMaps","SourceMap","generate","_opts$recordAndTupleS","auxiliaryCommentBefore","auxiliaryCommentAfter","shouldPrintComment","retainLines","retainFunctionParens","comments","compact","minified","concise","indent","adjustMultilineComment","style","jsescOption","Object","assign","quotes","wrap","minimal","recordAndTupleSyntaxType","topicToken","importAttributesKeyword","decoratorsBeforeExport","json","jsonCompatibleStrings","value","includes","length","console","error","filename","undefined","CodeGenerator","_generator","exports","gen"],"sources":["../src/index.ts"],"sourcesContent":["import SourceMap from \"./source-map.ts\";\nimport Printer from \"./printer.ts\";\nimport type * as t from \"@babel/types\";\nimport type { Opts as jsescOptions } from \"jsesc\";\nimport type { Format } from \"./printer.ts\";\nimport type {\n RecordAndTuplePluginOptions,\n PipelineOperatorPluginOptions,\n} from \"@babel/parser\";\nimport type {\n EncodedSourceMap,\n DecodedSourceMap,\n Mapping,\n} from \"@jridgewell/gen-mapping\";\n\n/**\n * Babel's code generator, turns an ast into code, maintaining sourcemaps,\n * user preferences, and valid output.\n */\n\nclass Generator extends Printer {\n constructor(\n ast: t.Node,\n opts: GeneratorOptions = {},\n code: string | { [filename: string]: string },\n ) {\n const format = normalizeOptions(code, opts);\n const map = opts.sourceMaps ? new SourceMap(opts, code) : null;\n super(format, map);\n\n this.ast = ast;\n }\n\n ast: t.Node;\n\n /**\n * Generate code and sourcemap from ast.\n *\n * Appends comments that weren't attached to any node to the end of the generated output.\n */\n\n generate() {\n return super.generate(this.ast);\n }\n}\n\n/**\n * Normalize generator options, setting defaults.\n *\n * - Detects code indentation.\n * - If `opts.compact = \"auto\"` and the code is over 500KB, `compact` will be set to `true`.\n */\n\nfunction normalizeOptions(\n code: string | { [filename: string]: string },\n opts: GeneratorOptions,\n): Format {\n const format: Format = {\n auxiliaryCommentBefore: opts.auxiliaryCommentBefore,\n auxiliaryCommentAfter: opts.auxiliaryCommentAfter,\n shouldPrintComment: opts.shouldPrintComment,\n retainLines: opts.retainLines,\n retainFunctionParens: opts.retainFunctionParens,\n comments: opts.comments == null || opts.comments,\n compact: opts.compact,\n minified: opts.minified,\n concise: opts.concise,\n indent: {\n adjustMultilineComment: true,\n style: \" \",\n },\n jsescOption: {\n quotes: \"double\",\n wrap: true,\n minimal: process.env.BABEL_8_BREAKING ? true : false,\n ...opts.jsescOption,\n },\n recordAndTupleSyntaxType: opts.recordAndTupleSyntaxType ?? \"hash\",\n topicToken: opts.topicToken,\n importAttributesKeyword: opts.importAttributesKeyword,\n };\n\n if (!process.env.BABEL_8_BREAKING) {\n format.decoratorsBeforeExport = opts.decoratorsBeforeExport;\n format.jsescOption.json = opts.jsonCompatibleStrings;\n }\n\n if (format.minified) {\n format.compact = true;\n\n format.shouldPrintComment =\n format.shouldPrintComment || (() => format.comments);\n } else {\n format.shouldPrintComment =\n format.shouldPrintComment ||\n (value =>\n format.comments ||\n value.includes(\"@license\") ||\n value.includes(\"@preserve\"));\n }\n\n if (format.compact === \"auto\") {\n format.compact = typeof code === \"string\" && code.length > 500_000; // 500KB\n\n if (format.compact) {\n console.error(\n \"[BABEL] Note: The code generator has deoptimised the styling of \" +\n `${opts.filename} as it exceeds the max of ${\"500KB\"}.`,\n );\n }\n }\n\n if (format.compact) {\n format.indent.adjustMultilineComment = false;\n }\n\n const { auxiliaryCommentBefore, auxiliaryCommentAfter, shouldPrintComment } =\n format;\n\n if (auxiliaryCommentBefore && !shouldPrintComment(auxiliaryCommentBefore)) {\n format.auxiliaryCommentBefore = undefined;\n }\n if (auxiliaryCommentAfter && !shouldPrintComment(auxiliaryCommentAfter)) {\n format.auxiliaryCommentAfter = undefined;\n }\n\n return format;\n}\n\nexport interface GeneratorOptions {\n /**\n * Optional string to add as a block comment at the start of the output file.\n */\n auxiliaryCommentBefore?: string;\n\n /**\n * Optional string to add as a block comment at the end of the output file.\n */\n auxiliaryCommentAfter?: string;\n\n /**\n * Function that takes a comment (as a string) and returns true if the comment should be included in the output.\n * By default, comments are included if `opts.comments` is `true` or if `opts.minified` is `false` and the comment\n * contains `@preserve` or `@license`.\n */\n shouldPrintComment?(comment: string): boolean;\n\n /**\n * Attempt to use the same line numbers in the output code as in the source code (helps preserve stack traces).\n * Defaults to `false`.\n */\n retainLines?: boolean;\n\n /**\n * Retain parens around function expressions (could be used to change engine parsing behavior)\n * Defaults to `false`.\n */\n retainFunctionParens?: boolean;\n\n /**\n * Should comments be included in output? Defaults to `true`.\n */\n comments?: boolean;\n\n /**\n * Set to true to avoid adding whitespace for formatting. Defaults to the value of `opts.minified`.\n */\n compact?: boolean | \"auto\";\n\n /**\n * Should the output be minified. Defaults to `false`.\n */\n minified?: boolean;\n\n /**\n * Set to true to reduce whitespace (but not as much as opts.compact). Defaults to `false`.\n */\n concise?: boolean;\n\n /**\n * Used in warning messages\n */\n filename?: string;\n\n /**\n * Enable generating source maps. Defaults to `false`.\n */\n sourceMaps?: boolean;\n\n inputSourceMap?: any;\n\n /**\n * A root for all relative URLs in the source map.\n */\n sourceRoot?: string;\n\n /**\n * The filename for the source code (i.e. the code in the `code` argument).\n * This will only be used if `code` is a string.\n */\n sourceFileName?: string;\n\n /**\n * Set to true to run jsesc with \"json\": true to print \"\\u00A9\" vs. \"©\";\n * @deprecated use `jsescOptions: { json: true }` instead\n */\n jsonCompatibleStrings?: boolean;\n\n /**\n * Set to true to enable support for experimental decorators syntax before\n * module exports. If not specified, decorators will be printed in the same\n * position as they were in the input source code.\n * @deprecated Removed in Babel 8\n */\n decoratorsBeforeExport?: boolean;\n\n /**\n * Options for outputting jsesc representation.\n */\n jsescOption?: jsescOptions;\n\n /**\n * For use with the recordAndTuple token.\n */\n recordAndTupleSyntaxType?: RecordAndTuplePluginOptions[\"syntaxType\"];\n\n /**\n * For use with the Hack-style pipe operator.\n * Changes what token is used for pipe bodies topic references.\n */\n topicToken?: PipelineOperatorPluginOptions[\"topicToken\"];\n\n /**\n * The import attributes syntax style:\n * - \"with\" : `import { a } from \"b\" with { type: \"json\" };`\n * - \"assert\" : `import { a } from \"b\" assert { type: \"json\" };`\n * - \"with-legacy\" : `import { a } from \"b\" with type: \"json\";`\n */\n importAttributesKeyword?: \"with\" | \"assert\" | \"with-legacy\";\n}\n\nexport interface GeneratorResult {\n code: string;\n map: EncodedSourceMap | null;\n decodedMap: DecodedSourceMap | undefined;\n rawMappings: Mapping[] | undefined;\n}\n\n/**\n * We originally exported the Generator class above, but to make it extra clear that it is a private API,\n * we have moved that to an internal class instance and simplified the interface to the two public methods\n * that we wish to support.\n */\n\nexport class CodeGenerator {\n private _generator: Generator;\n constructor(ast: t.Node, opts?: GeneratorOptions, code?: string) {\n this._generator = new Generator(ast, opts, code);\n }\n generate(): GeneratorResult {\n return this._generator.generate();\n }\n}\n\n/**\n * Turns an AST into code, maintaining sourcemaps, user preferences, and valid output.\n * @param ast - the abstract syntax tree from which to generate output code.\n * @param opts - used for specifying options for code generation.\n * @param code - the original source code, used for source maps.\n * @returns - an object containing the output code and source map.\n */\nexport default function generate(\n ast: t.Node,\n opts?: GeneratorOptions,\n code?: string | { [filename: string]: string },\n) {\n const gen = new Generator(ast, opts, code);\n return gen.generate();\n}\n"],"mappings":";;;;;;;AAAA,IAAAA,UAAA,GAAAC,OAAA;AACA,IAAAC,QAAA,GAAAD,OAAA;AAmBA,MAAME,SAAS,SAASC,gBAAO,CAAC;EAC9BC,WAAWA,CACTC,GAAW,EACXC,IAAsB,GAAG,CAAC,CAAC,EAC3BC,IAA6C,EAC7C;IACA,MAAMC,MAAM,GAAGC,gBAAgB,CAACF,IAAI,EAAED,IAAI,CAAC;IAC3C,MAAMI,GAAG,GAAGJ,IAAI,CAACK,UAAU,GAAG,IAAIC,kBAAS,CAACN,IAAI,EAAEC,IAAI,CAAC,GAAG,IAAI;IAC9D,KAAK,CAACC,MAAM,EAAEE,GAAG,CAAC;IAAC,KAKrBL,GAAG;IAHD,IAAI,CAACA,GAAG,GAAGA,GAAG;EAChB;EAUAQ,QAAQA,CAAA,EAAG;IACT,OAAO,KAAK,CAACA,QAAQ,CAAC,IAAI,CAACR,GAAG,CAAC;EACjC;AACF;AASA,SAASI,gBAAgBA,CACvBF,IAA6C,EAC7CD,IAAsB,EACd;EAAA,IAAAQ,qBAAA;EACR,MAAMN,MAAc,GAAG;IACrBO,sBAAsB,EAAET,IAAI,CAACS,sBAAsB;IACnDC,qBAAqB,EAAEV,IAAI,CAACU,qBAAqB;IACjDC,kBAAkB,EAAEX,IAAI,CAACW,kBAAkB;IAC3CC,WAAW,EAAEZ,IAAI,CAACY,WAAW;IAC7BC,oBAAoB,EAAEb,IAAI,CAACa,oBAAoB;IAC/CC,QAAQ,EAAEd,IAAI,CAACc,QAAQ,IAAI,IAAI,IAAId,IAAI,CAACc,QAAQ;IAChDC,OAAO,EAAEf,IAAI,CAACe,OAAO;IACrBC,QAAQ,EAAEhB,IAAI,CAACgB,QAAQ;IACvBC,OAAO,EAAEjB,IAAI,CAACiB,OAAO;IACrBC,MAAM,EAAE;MACNC,sBAAsB,EAAE,IAAI;MAC5BC,KAAK,EAAE;IACT,CAAC;IACDC,WAAW,EAAAC,MAAA,CAAAC,MAAA;MACTC,MAAM,EAAE,QAAQ;MAChBC,IAAI,EAAE,IAAI;MACVC,OAAO,EAAwC;IAAK,GACjD1B,IAAI,CAACqB,WAAW,CACpB;IACDM,wBAAwB,GAAAnB,qBAAA,GAAER,IAAI,CAAC2B,wBAAwB,YAAAnB,qBAAA,GAAI,MAAM;IACjEoB,UAAU,EAAE5B,IAAI,CAAC4B,UAAU;IAC3BC,uBAAuB,EAAE7B,IAAI,CAAC6B;EAChC,CAAC;EAEkC;IACjC3B,MAAM,CAAC4B,sBAAsB,GAAG9B,IAAI,CAAC8B,sBAAsB;IAC3D5B,MAAM,CAACmB,WAAW,CAACU,IAAI,GAAG/B,IAAI,CAACgC,qBAAqB;EACtD;EAEA,IAAI9B,MAAM,CAACc,QAAQ,EAAE;IACnBd,MAAM,CAACa,OAAO,GAAG,IAAI;IAErBb,MAAM,CAACS,kBAAkB,GACvBT,MAAM,CAACS,kBAAkB,KAAK,MAAMT,MAAM,CAACY,QAAQ,CAAC;EACxD,CAAC,MAAM;IACLZ,MAAM,CAACS,kBAAkB,GACvBT,MAAM,CAACS,kBAAkB,KACxBsB,KAAK,IACJ/B,MAAM,CAACY,QAAQ,IACfmB,KAAK,CAACC,QAAQ,CAAC,UAAU,CAAC,IAC1BD,KAAK,CAACC,QAAQ,CAAC,WAAW,CAAC,CAAC;EAClC;EAEA,IAAIhC,MAAM,CAACa,OAAO,KAAK,MAAM,EAAE;IAC7Bb,MAAM,CAACa,OAAO,GAAG,OAAOd,IAAI,KAAK,QAAQ,IAAIA,IAAI,CAACkC,MAAM,GAAG,MAAO;IAElE,IAAIjC,MAAM,CAACa,OAAO,EAAE;MAClBqB,OAAO,CAACC,KAAK,CACX,kEAAkE,GAC/D,GAAErC,IAAI,CAACsC,QAAS,6BAA4B,OAAQ,GACzD,CAAC;IACH;EACF;EAEA,IAAIpC,MAAM,CAACa,OAAO,EAAE;IAClBb,MAAM,CAACgB,MAAM,CAACC,sBAAsB,GAAG,KAAK;EAC9C;EAEA,MAAM;IAAEV,sBAAsB;IAAEC,qBAAqB;IAAEC;EAAmB,CAAC,GACzET,MAAM;EAER,IAAIO,sBAAsB,IAAI,CAACE,kBAAkB,CAACF,sBAAsB,CAAC,EAAE;IACzEP,MAAM,CAACO,sBAAsB,GAAG8B,SAAS;EAC3C;EACA,IAAI7B,qBAAqB,IAAI,CAACC,kBAAkB,CAACD,qBAAqB,CAAC,EAAE;IACvER,MAAM,CAACQ,qBAAqB,GAAG6B,SAAS;EAC1C;EAEA,OAAOrC,MAAM;AACf;AA+HO,MAAMsC,aAAa,CAAC;EAEzB1C,WAAWA,CAACC,GAAW,EAAEC,IAAuB,EAAEC,IAAa,EAAE;IAAA,KADzDwC,UAAU;IAEhB,IAAI,CAACA,UAAU,GAAG,IAAI7C,SAAS,CAACG,GAAG,EAAEC,IAAI,EAAEC,IAAI,CAAC;EAClD;EACAM,QAAQA,CAAA,EAAoB;IAC1B,OAAO,IAAI,CAACkC,UAAU,CAAClC,QAAQ,CAAC,CAAC;EACnC;AACF;AAACmC,OAAA,CAAAF,aAAA,GAAAA,aAAA;AASc,SAASjC,QAAQA,CAC9BR,GAAW,EACXC,IAAuB,EACvBC,IAA8C,EAC9C;EACA,MAAM0C,GAAG,GAAG,IAAI/C,SAAS,CAACG,GAAG,EAAEC,IAAI,EAAEC,IAAI,CAAC;EAC1C,OAAO0C,GAAG,CAACpC,QAAQ,CAAC,CAAC;AACvB"}