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{
"version": 3,
"names": [
"corejs2DefaultWebIncludes",
"v",
"OptionValidator",
"allPluginsList",
"Object",
"keys",
"pluginsList",
"modulePlugins",
"moduleTransformations",
"map",
"m",
"getValidIncludesAndExcludes",
"type",
"corejs",
"Array",
"from",
"Set",
"corejs2Polyfills",
"corejs3Polyfills",
"flatMap",
"array",
"fn",
"prototype",
"concat",
"apply",
"normalizePluginName",
"plugin",
"replace",
"expandIncludesAndExcludes",
"filterList",
"length",
"filterableItems",
"invalidFilters",
"selectedPlugins",
"filter",
"re",
"RegExp",
"e",
"push",
"items",
"item",
"test",
"invariant",
"join",
"checkDuplicateIncludeExcludes",
"include",
"exclude",
"duplicates",
"opt",
"indexOf",
"normalizeTargets",
"targets",
"isArray",
"browsers",
"validateModulesOption",
"modulesOpt",
"ModulesOption",
"auto",
"toString",
"false",
"validateUseBuiltInsOption",
"builtInsOpt",
"UseBuiltInsOption",
"normalizeCoreJSOption",
"useBuiltIns",
"proposals",
"rawVersion",
"undefined",
"console",
"warn",
"version",
"Boolean",
"semver",
"coerce",
"String",
"major",
"RangeError",
"normalizeOptions",
"opts",
"validateTopLevelOptions",
"TopLevelOptions",
"bugfixes",
"validateBooleanOption",
"configPath",
"validateStringOption",
"process",
"cwd",
"debug",
"forceAllTransforms",
"ignoreBrowserslistConfig",
"loose",
"modules",
"shippedProposals",
"spec",
"browserslistEnv"
],
"sources": [
"../src/normalize-options.ts"
],
"sourcesContent": [
"import semver, { type SemVer } from \"semver\";\nimport corejs2Polyfills from \"@babel/compat-data/corejs2-built-ins\";\n// @ts-expect-error Fixme: TS can not infer types from ../data/core-js-compat.js\n// but we can't import core-js-compat/data.json because JSON imports do\n// not work on Node 14\nimport corejs3Polyfills from \"../data/core-js-compat\";\nimport { plugins as pluginsList } from \"./plugins-compat-data\";\nimport moduleTransformations from \"./module-transformations\";\nimport { TopLevelOptions, ModulesOption, UseBuiltInsOption } from \"./options\";\nimport { OptionValidator } from \"@babel/helper-validator-option\";\n\nconst corejs2DefaultWebIncludes = [\n \"web.timers\",\n \"web.immediate\",\n \"web.dom.iterable\",\n];\n\nimport type {\n BuiltInsOption,\n CorejsOption,\n ModuleOption,\n Options,\n PluginListOption,\n} from \"./types\";\n\ndeclare const PACKAGE_JSON: { name: string; version: string };\n\nconst v = new OptionValidator(PACKAGE_JSON.name);\n\nconst allPluginsList = Object.keys(pluginsList);\n\n// NOTE: Since module plugins are handled separately compared to other plugins (via the \"modules\" option) it\n// should only be possible to exclude and not include module plugins, otherwise it's possible that preset-env\n// will add a module plugin twice.\nconst modulePlugins = [\n \"transform-dynamic-import\",\n ...Object.keys(moduleTransformations).map(m => moduleTransformations[m]),\n];\n\nconst getValidIncludesAndExcludes = (\n type: \"include\" | \"exclude\",\n corejs: number | false,\n) =>\n Array.from(\n new Set([\n ...allPluginsList,\n ...(type === \"exclude\" ? modulePlugins : []),\n ...(corejs\n ? corejs == 2\n ? [...Object.keys(corejs2Polyfills), ...corejs2DefaultWebIncludes]\n : Object.keys(corejs3Polyfills)\n : []),\n ]),\n );\n\nfunction flatMap<T, U>(array: Array<T>, fn: (item: T) => Array<U>): Array<U> {\n return Array.prototype.concat.apply([], array.map(fn));\n}\n\nexport const normalizePluginName = (plugin: string) =>\n plugin.replace(/^(@babel\\/|babel-)(plugin-)?/, \"\");\n\nconst expandIncludesAndExcludes = (\n filterList: PluginListOption = [],\n type: \"include\" | \"exclude\",\n corejs: number | false,\n) => {\n if (filterList.length === 0) return [];\n\n const filterableItems = getValidIncludesAndExcludes(type, corejs);\n\n const invalidFilters: PluginListOption = [];\n const selectedPlugins = flatMap(filterList, filter => {\n let re: RegExp;\n if (typeof filter === \"string\") {\n try {\n re = new RegExp(`^${normalizePluginName(filter)}$`);\n } catch (e) {\n invalidFilters.push(filter);\n return [];\n }\n } else {\n re = filter;\n }\n const items = filterableItems.filter(\n item =>\n re.test(item) ||\n // For backwards compatibility, we also support matching against the\n // proposal- name.\n // TODO(Babel 8): Remove this.\n re.test(item.replace(/^transform-/, \"proposal-\")),\n );\n if (items.length === 0) invalidFilters.push(filter);\n return items;\n });\n\n v.invariant(\n invalidFilters.length === 0,\n `The plugins/built-ins '${invalidFilters.join(\n \", \",\n )}' passed to the '${type}' option are not\n valid. Please check data/[plugin-features|built-in-features].js in babel-preset-env`,\n );\n\n return selectedPlugins;\n};\n\nexport const checkDuplicateIncludeExcludes = (\n include: Array<string> = [],\n exclude: Array<string> = [],\n) => {\n const duplicates = include.filter(opt => exclude.indexOf(opt) >= 0);\n\n v.invariant(\n duplicates.length === 0,\n `The plugins/built-ins '${duplicates.join(\n \", \",\n )}' were found in both the \"include\" and\n \"exclude\" options.`,\n );\n};\n\nconst normalizeTargets = (\n targets: string | string[] | Options[\"targets\"],\n): Options[\"targets\"] => {\n // TODO: Allow to use only query or strings as a targets from next breaking change.\n if (typeof targets === \"string\" || Array.isArray(targets)) {\n return { browsers: targets };\n }\n return { ...targets };\n};\n\nexport const validateModulesOption = (\n modulesOpt: ModuleOption = ModulesOption.auto,\n) => {\n v.invariant(\n // @ts-expect-error we have provided fallback for undefined keys\n ModulesOption[modulesOpt.toString()] || modulesOpt === ModulesOption.false,\n `The 'modules' option must be one of \\n` +\n ` - 'false' to indicate no module processing\\n` +\n ` - a specific module type: 'commonjs', 'amd', 'umd', 'systemjs'` +\n ` - 'auto' (default) which will automatically select 'false' if the current\\n` +\n ` process is known to support ES module syntax, or \"commonjs\" otherwise\\n`,\n );\n\n return modulesOpt;\n};\n\nexport const validateUseBuiltInsOption = (\n builtInsOpt: BuiltInsOption = false,\n) => {\n v.invariant(\n // @ts-expect-error we have provided fallback for undefined keys\n UseBuiltInsOption[builtInsOpt.toString()] ||\n builtInsOpt === UseBuiltInsOption.false,\n `The 'useBuiltIns' option must be either\n 'false' (default) to indicate no polyfill,\n '\"entry\"' to indicate replacing the entry polyfill, or\n '\"usage\"' to import only used polyfills per file`,\n );\n\n return builtInsOpt;\n};\n\nexport type NormalizedCorejsOption = {\n proposals: boolean;\n version: SemVer | null | false;\n};\n\nexport function normalizeCoreJSOption(\n corejs: CorejsOption | undefined | null,\n useBuiltIns: BuiltInsOption,\n): NormalizedCorejsOption {\n let proposals = false;\n let rawVersion;\n\n if (useBuiltIns && corejs === undefined) {\n rawVersion = 2;\n console.warn(\n \"\\nWARNING (@babel/preset-env): We noticed you're using the `useBuiltIns` option without declaring a \" +\n \"core-js version. Currently, we assume version 2.x when no version \" +\n \"is passed. Since this default version will likely change in future \" +\n \"versions of Babel, we recommend explicitly setting the core-js version \" +\n \"you are using via the `corejs` option.\\n\" +\n \"\\nYou should also be sure that the version you pass to the `corejs` \" +\n \"option matches the version specified in your `package.json`'s \" +\n \"`dependencies` section. If it doesn't, you need to run one of the \" +\n \"following commands:\\n\\n\" +\n \" npm install --save core-js@2 npm install --save core-js@3\\n\" +\n \" yarn add core-js@2 yarn add core-js@3\\n\\n\" +\n \"More info about useBuiltIns: https://babeljs.io/docs/en/babel-preset-env#usebuiltins\\n\" +\n \"More info about core-js: https://babeljs.io/docs/en/babel-preset-env#corejs\",\n );\n } else if (typeof corejs === \"object\" && corejs !== null) {\n rawVersion = corejs.version;\n proposals = Boolean(corejs.proposals);\n } else {\n rawVersion = corejs;\n }\n\n const version = rawVersion ? semver.coerce(String(rawVersion)) : false;\n\n if (!useBuiltIns && version) {\n console.warn(\n \"\\nWARNING (@babel/preset-env): The `corejs` option only has an effect when the `useBuiltIns` option is not `false`\\n\",\n );\n }\n\n if (useBuiltIns && (!version || version.major < 2 || version.major > 3)) {\n throw new RangeError(\n \"Invalid Option: The version passed to `corejs` is invalid. Currently, \" +\n \"only core-js@2 and core-js@3 are supported.\",\n );\n }\n\n return { version, proposals };\n}\n\nexport default function normalizeOptions(opts: Options) {\n v.validateTopLevelOptions(opts, TopLevelOptions);\n\n const useBuiltIns = validateUseBuiltInsOption(opts.useBuiltIns);\n\n const corejs = normalizeCoreJSOption(opts.corejs, useBuiltIns);\n\n const include = expandIncludesAndExcludes(\n opts.include,\n TopLevelOptions.include,\n !!corejs.version && corejs.version.major,\n );\n\n const exclude = expandIncludesAndExcludes(\n opts.exclude,\n TopLevelOptions.exclude,\n !!corejs.version && corejs.version.major,\n );\n\n checkDuplicateIncludeExcludes(include, exclude);\n\n return {\n bugfixes: v.validateBooleanOption(\n TopLevelOptions.bugfixes,\n opts.bugfixes,\n process.env.BABEL_8_BREAKING ? true : false,\n ),\n configPath: v.validateStringOption(\n TopLevelOptions.configPath,\n opts.configPath,\n process.cwd(),\n ),\n corejs,\n debug: v.validateBooleanOption(TopLevelOptions.debug, opts.debug, false),\n include,\n exclude,\n forceAllTransforms: v.validateBooleanOption(\n TopLevelOptions.forceAllTransforms,\n opts.forceAllTransforms,\n false,\n ),\n ignoreBrowserslistConfig: v.validateBooleanOption(\n TopLevelOptions.ignoreBrowserslistConfig,\n opts.ignoreBrowserslistConfig,\n false,\n ),\n loose: v.validateBooleanOption<boolean>(TopLevelOptions.loose, opts.loose),\n modules: validateModulesOption(opts.modules),\n shippedProposals: v.validateBooleanOption(\n TopLevelOptions.shippedProposals,\n opts.shippedProposals,\n false,\n ),\n spec: v.validateBooleanOption(TopLevelOptions.spec, opts.spec, false),\n targets: normalizeTargets(opts.targets),\n useBuiltIns: useBuiltIns,\n browserslistEnv: v.validateStringOption<string>(\n TopLevelOptions.browserslistEnv,\n opts.browserslistEnv,\n ),\n };\n}\n"
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}
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