igv_component/node_modules/@babel/helper-create-class-features-plugin/lib/features.js.map

{"version":3,"names":["_decorators","require","FEATURES","exports","Object","freeze","fields","privateMethods","decorators","privateIn","staticBlocks","featuresSameLoose","Map","featuresKey","looseKey","looseLowPriorityKey","canIgnoreLoose","file","feature","get","enableFeature","loose","hasFeature","set","setLoose","resolvedLoose","mask","name","isLoose","Error","higherPriorityPluginName","undefined","console","warn","shouldTransform","path","decoratorPath","publicFieldPath","privateFieldPath","privateMethodPath","staticBlockPath","hasOwnDecorators","node","el","isClassProperty","isClassPrivateProperty","isClassPrivateMethod","isStaticBlock","buildCodeFrameError"],"sources":["../src/features.ts"],"sourcesContent":["import type { File, types as t } from \"@babel/core\";\nimport type { NodePath } from \"@babel/traverse\";\nimport { hasOwnDecorators } from \"./decorators-2018-09.ts\";\n\nexport const FEATURES = Object.freeze({\n  //classes: 1 << 0,\n  fields: 1 << 1,\n  privateMethods: 1 << 2,\n  decorators: 1 << 3,\n  privateIn: 1 << 4,\n  staticBlocks: 1 << 5,\n});\n\nconst featuresSameLoose = new Map([\n  [FEATURES.fields, \"@babel/plugin-transform-class-properties\"],\n  [FEATURES.privateMethods, \"@babel/plugin-transform-private-methods\"],\n  [FEATURES.privateIn, \"@babel/plugin-transform-private-property-in-object\"],\n]);\n\n// We can't use a symbol because this needs to always be the same, even if\n// this package isn't deduped by npm. e.g.\n//  - node_modules/\n//    - @babel/plugin-class-features\n//    - @babel/plugin-proposal-decorators\n//      - node_modules\n//        - @babel-plugin-class-features\nconst featuresKey = \"@babel/plugin-class-features/featuresKey\";\nconst looseKey = \"@babel/plugin-class-features/looseKey\";\n\nif (!process.env.BABEL_8_BREAKING) {\n  // See https://github.com/babel/babel/issues/11622.\n  // Since preset-env sets loose for the fields and private methods plugins, it can\n  // cause conflicts with the loose mode set by an explicit plugin in the config.\n  // To solve this problem, we ignore preset-env's loose mode if another plugin\n  // explicitly sets it\n  // The code to handle this logic doesn't check that \"low priority loose\" is always\n  // the same. However, it is only set by the preset and not directly by users:\n  // unless someone _wants_ to break it, it shouldn't be a problem.\n  // eslint-disable-next-line no-var\n  var looseLowPriorityKey =\n    \"@babel/plugin-class-features/looseLowPriorityKey/#__internal__@babel/preset-env__please-overwrite-loose-instead-of-throwing\";\n}\n\nif (!process.env.BABEL_8_BREAKING) {\n  // eslint-disable-next-line no-var\n  var canIgnoreLoose = function (file: File, feature: number) {\n    return !!(file.get(looseLowPriorityKey) & feature);\n  };\n}\n\nexport function enableFeature(file: File, feature: number, loose: boolean) {\n  // We can't blindly enable the feature because, if it was already set,\n  // \"loose\" can't be changed, so that\n  //   @babel/plugin-class-properties { loose: true }\n  //   @babel/plugin-class-properties { loose: false }\n  // is transformed in loose mode.\n  // We only enabled the feature if it was previously disabled.\n  if (process.env.BABEL_8_BREAKING) {\n    if (!hasFeature(file, feature)) {\n      file.set(featuresKey, file.get(featuresKey) | feature);\n      setLoose(file, feature, loose);\n    }\n  } else if (!hasFeature(file, feature) || canIgnoreLoose(file, feature)) {\n    file.set(featuresKey, file.get(featuresKey) | feature);\n    if (\n      // @ts-expect-error comparing loose with internal private magic string\n      loose ===\n      \"#__internal__@babel/preset-env__prefer-true-but-false-is-ok-if-it-prevents-an-error\"\n    ) {\n      setLoose(file, feature, true);\n      file.set(looseLowPriorityKey, file.get(looseLowPriorityKey) | feature);\n    } else if (\n      // @ts-expect-error comparing loose with internal private magic string\n      loose ===\n      \"#__internal__@babel/preset-env__prefer-false-but-true-is-ok-if-it-prevents-an-error\"\n    ) {\n      setLoose(file, feature, false);\n      file.set(looseLowPriorityKey, file.get(looseLowPriorityKey) | feature);\n    } else {\n      setLoose(file, feature, loose);\n    }\n  }\n\n  let resolvedLoose: boolean | undefined;\n  for (const [mask, name] of featuresSameLoose) {\n    if (!hasFeature(file, mask)) continue;\n    if (!process.env.BABEL_8_BREAKING) {\n      if (canIgnoreLoose(file, mask)) continue;\n    }\n\n    const loose = isLoose(file, mask);\n\n    if (resolvedLoose === !loose) {\n      throw new Error(\n        \"'loose' mode configuration must be the same for @babel/plugin-transform-class-properties, \" +\n          \"@babel/plugin-transform-private-methods and \" +\n          \"@babel/plugin-transform-private-property-in-object (when they are enabled).\",\n      );\n    } else {\n      resolvedLoose = loose;\n\n      if (!process.env.BABEL_8_BREAKING) {\n        // eslint-disable-next-line no-var\n        var higherPriorityPluginName = name;\n      }\n    }\n  }\n\n  if (!process.env.BABEL_8_BREAKING && resolvedLoose !== undefined) {\n    for (const [mask, name] of featuresSameLoose) {\n      if (hasFeature(file, mask) && isLoose(file, mask) !== resolvedLoose) {\n        setLoose(file, mask, resolvedLoose);\n        console.warn(\n          `Though the \"loose\" option was set to \"${!resolvedLoose}\" in your @babel/preset-env ` +\n            `config, it will not be used for ${name} since the \"loose\" mode option was set to ` +\n            `\"${resolvedLoose}\" for ${higherPriorityPluginName}.\\nThe \"loose\" option must be the ` +\n            `same for @babel/plugin-transform-class-properties, @babel/plugin-transform-private-methods ` +\n            `and @babel/plugin-transform-private-property-in-object (when they are enabled): you can ` +\n            `silence this warning by explicitly adding\\n` +\n            `\\t[\"${name}\", { \"loose\": ${resolvedLoose} }]\\n` +\n            `to the \"plugins\" section of your Babel config.`,\n        );\n      }\n    }\n  }\n}\n\nfunction hasFeature(file: File, feature: number) {\n  return !!(file.get(featuresKey) & feature);\n}\n\nexport function isLoose(file: File, feature: number) {\n  return !!(file.get(looseKey) & feature);\n}\n\nfunction setLoose(file: File, feature: number, loose: boolean) {\n  if (loose) file.set(looseKey, file.get(looseKey) | feature);\n  else file.set(looseKey, file.get(looseKey) & ~feature);\n\n  if (!process.env.BABEL_8_BREAKING) {\n    file.set(looseLowPriorityKey, file.get(looseLowPriorityKey) & ~feature);\n  }\n}\n\nexport function shouldTransform(path: NodePath<t.Class>, file: File): boolean {\n  let decoratorPath: NodePath<t.Decorator> | null = null;\n  let publicFieldPath: NodePath<t.ClassProperty> | null = null;\n  let privateFieldPath: NodePath<t.ClassPrivateProperty> | null = null;\n  let privateMethodPath: NodePath<t.ClassPrivateMethod> | null = null;\n  let staticBlockPath: NodePath<t.StaticBlock> | null = null;\n\n  if (hasOwnDecorators(path.node)) {\n    decoratorPath = path.get(\"decorators.0\");\n  }\n  for (const el of path.get(\"body.body\")) {\n    if (!decoratorPath && hasOwnDecorators(el.node)) {\n      decoratorPath = el.get(\"decorators.0\");\n    }\n    if (!publicFieldPath && el.isClassProperty()) {\n      publicFieldPath = el;\n    }\n    if (!privateFieldPath && el.isClassPrivateProperty()) {\n      privateFieldPath = el;\n    }\n    // NOTE: path.isClassPrivateMethod() it isn't supported in <7.2.0\n    if (!privateMethodPath && el.isClassPrivateMethod?.()) {\n      privateMethodPath = el;\n    }\n    if (!staticBlockPath && el.isStaticBlock?.()) {\n      staticBlockPath = el;\n    }\n  }\n\n  if (decoratorPath && privateFieldPath) {\n    throw privateFieldPath.buildCodeFrameError(\n      \"Private fields in decorated classes are not supported yet.\",\n    );\n  }\n  if (decoratorPath && privateMethodPath) {\n    throw privateMethodPath.buildCodeFrameError(\n      \"Private methods in decorated classes are not supported yet.\",\n    );\n  }\n\n  if (decoratorPath && !hasFeature(file, FEATURES.decorators)) {\n    throw path.buildCodeFrameError(\n      \"Decorators are not enabled.\" +\n        \"\\nIf you are using \" +\n        '[\"@babel/plugin-proposal-decorators\", { \"version\": \"legacy\" }], ' +\n        'make sure it comes *before* \"@babel/plugin-transform-class-properties\" ' +\n        \"and enable loose mode, like so:\\n\" +\n        '\\t[\"@babel/plugin-proposal-decorators\", { \"version\": \"legacy\" }]\\n' +\n        '\\t[\"@babel/plugin-transform-class-properties\", { \"loose\": true }]',\n    );\n  }\n\n  if (privateMethodPath && !hasFeature(file, FEATURES.privateMethods)) {\n    throw privateMethodPath.buildCodeFrameError(\n      \"Class private methods are not enabled. \" +\n        \"Please add `@babel/plugin-transform-private-methods` to your configuration.\",\n    );\n  }\n\n  if (\n    (publicFieldPath || privateFieldPath) &&\n    !hasFeature(file, FEATURES.fields) &&\n    // We want to allow enabling the private-methods plugin even without enabling\n    // the class-properties plugin. Class fields will still be compiled in classes\n    // that contain private methods.\n    // This is already allowed with the other various class features plugins, but\n    // it's because they can fallback to a transform separated from this helper.\n    !hasFeature(file, FEATURES.privateMethods)\n  ) {\n    throw path.buildCodeFrameError(\n      \"Class fields are not enabled. \" +\n        \"Please add `@babel/plugin-transform-class-properties` to your configuration.\",\n    );\n  }\n\n  if (staticBlockPath && !hasFeature(file, FEATURES.staticBlocks)) {\n    throw path.buildCodeFrameError(\n      \"Static class blocks are not enabled. \" +\n        \"Please add `@babel/plugin-transform-class-static-block` to your configuration.\",\n    );\n  }\n\n  if (decoratorPath || privateMethodPath || staticBlockPath) {\n    // If one of those feature is used we know that its transform is\n    // enabled, otherwise the previous checks throw.\n    return true;\n  }\n  if (\n    (publicFieldPath || privateFieldPath) &&\n    hasFeature(file, FEATURES.fields)\n  ) {\n    return true;\n  }\n\n  return 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