ts-jest-resolver/dist/index.cjs.map

A resolver for `jest` that uses same strategy as TS when resolving files with JavaScript extension (".js").

{"version":3,"file":"index.cjs","sources":["../src/index.ts"],"sourcesContent":["import type { ResolverOptions } from 'jest-resolve';\n\nexport type Path = string;\n\nexport type { ResolverOptions };\n\ntype Resolution = {\n  /**\n   * A `RegExp` that checks if file name has a JavaScript extension.\n   */\n  matcher: RegExp;\n\n  /**\n   * A list of TypeScript file extensions, in the order used by its resolver.\n   */\n  extensions: string[];\n};\n\nconst resolutions: Resolution[] = [\n  {\n    matcher: /\\.js$/i,\n    extensions: ['.ts', '.tsx'],\n  },\n  {\n    matcher: /\\.jsx$/i,\n    extensions: ['.ts', '.tsx', '.js'],\n  },\n  {\n    matcher: /\\.cjs$/i,\n    extensions: ['.cts'],\n  },\n  {\n    matcher: /\\.mjs$/i,\n    extensions: ['.mts'],\n  },\n];\n\n/**\n * A resolver for `jest` that uses same strategy as TS when resolving files with\n * JavaScript extension (\".js\"). Otherwise it just uses default resolver.\n *\n * When receives a path with JavaScript extension (\".js\" or \".jsx\"):\n * 1. It tries to resolve to a path with \".tsx\".\n * 2. If no file was found, it tries to resolve to a path with \".ts\".\n * 3. If no file was found, it resolves to original path (with \".js\" or \".jsx\").\n *\n * When receives a path with ES modules extension (\".mjs\"):\n * 1. It tries to resolve to a path with \".mts\".\n * 2. If no file was found, it resolves to original path (with \".mjs\").\n *\n * When receives a path with CommonJS modules extension (\".cjs\"):\n * 1. It tries to resolve to a path with \".cts\".\n * 2. If no file was found, it resolves to original path (with \".cjs\").\n */\nfunction resolverForTSJest(path: Path, options: ResolverOptions): Path {\n  const resolver = options.defaultResolver;\n\n  const resolution = resolutions.find(({ matcher }) => matcher.test(path));\n\n  if (resolution) {\n    for (const extension of resolution.extensions) {\n      try {\n        return resolver(path.replace(resolution.matcher, extension), options);\n      } catch {\n        continue;\n      }\n    }\n  }\n\n  return resolver(path, options);\n}\n\nexport default resolverForTSJest;\n"],"names":[],"mappings":";;;;;;;;AAkBA,IAAM,WAAW,GAAiB;AAChC,IAAA;AACE,QAAA,OAAO,EAAE,QAAQ;AACjB,QAAA,UAAU,EAAE,CAAC,KAAK,EAAE,MAAM,CAAC;AAC5B,KAAA;AACD,IAAA;AACE,QAAA,OAAO,EAAE,SAAS;AAClB,QAAA,UAAU,EAAE,CAAC,KAAK,EAAE,MAAM,EAAE,KAAK,CAAC;AACnC,KAAA;AACD,IAAA;AACE,QAAA,OAAO,EAAE,SAAS;QAClB,UAAU,EAAE,CAAC,MAAM,CAAC;AACrB,KAAA;AACD,IAAA;AACE,QAAA,OAAO,EAAE,SAAS;QAClB,UAAU,EAAE,CAAC,MAAM,CAAC;AACrB,KAAA;CACF,CAAC;AAEF;;;;;;;;;;;;;;;;AAgBG;AACH,SAAS,iBAAiB,CAAC,IAAU,EAAE,OAAwB,EAAA;AAC7D,IAAA,IAAM,QAAQ,GAAG,OAAO,CAAC,eAAe,CAAC;AAEzC,IAAA,IAAM,UAAU,GAAG,WAAW,CAAC,IAAI,CAAC,UAAC,EAAW,EAAA;AAAT,QAAA,IAAA,OAAO,GAAA,EAAA,CAAA,OAAA,CAAA;AAAO,QAAA,OAAA,OAAO,CAAC,IAAI,CAAC,IAAI,CAAC,CAAA;AAAlB,KAAkB,CAAC,CAAC;AAEzE,IAAA,IAAI,UAAU,EAAE;QACd,KAAwB,IAAA,EAAA,GAAA,CAAqB,EAArB,EAAA,GAAA,UAAU,CAAC,UAAU,EAArB,EAAA,GAAA,EAAA,CAAA,MAAqB,EAArB,EAAA,EAAqB,EAAE;AAA1C,YAAA,IAAM,SAAS,GAAA,EAAA,CAAA,EAAA,CAAA,CAAA;YAClB,IAAI;AACF,gBAAA,OAAO,QAAQ,CAAC,IAAI,CAAC,OAAO,CAAC,UAAU,CAAC,OAAO,EAAE,SAAS,CAAC,EAAE,OAAO,CAAC,CAAC;AACvE,aAAA;YAAC,OAAM,EAAA,EAAA;gBACN,SAAS;AACV,aAAA;AACF,SAAA;AACF,KAAA;AAED,IAAA,OAAO,QAAQ,CAAC,IAAI,EAAE,OAAO,CAAC,CAAC;AACjC;;;;"}