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undefined\n : reactNativePlatformResolver(\n outOfTreePlatforms.reduce<{[platform: string]: string}>(\n (result, platform) => {\n result[platform] = ctx.platforms[platform].npmPackageName!;\n return result;\n },\n {},\n ),\n ),\n resolverMainFields: ['react-native', 'browser', 'main'],\n platforms: [...Object.keys(ctx.platforms), 'native'],\n },\n serializer: {\n // We can include multiple copies of InitializeCore here because metro will\n // only add ones that are already part of the bundle\n getModulesRunBeforeMainModule: () => [\n require.resolve(\n path.join(ctx.reactNativePath, 'Libraries/Core/InitializeCore'),\n ),\n ...outOfTreePlatforms.map((platform) =>\n require.resolve(\n `${ctx.platforms[platform]\n .npmPackageName!}/Libraries/Core/InitializeCore`,\n ),\n ),\n ],\n getPolyfills: () =>\n require(path.join(ctx.reactNativePath, 'rn-get-polyfills'))(),\n },\n server: {\n port: Number(process.env.RCT_METRO_PORT) || 8081,\n },\n symbolicator: {\n customizeFrame: (frame: {file: string | null}) => {\n const collapse = Boolean(\n frame.file && INTERNAL_CALLSITES_REGEX.test(frame.file),\n );\n return {collapse};\n },\n },\n transformer: {\n allowOptionalDependencies: true,\n babelTransformerPath: require.resolve(\n 'metro-react-native-babel-transformer',\n ),\n assetRegistryPath: 'react-native/Libraries/Image/AssetRegistry',\n asyncRequireModulePath: require.resolve(\n 'metro-runtime/src/modules/asyncRequire',\n ),\n },\n watchFolders: [],\n };\n};\n\nexport interface ConfigOptionsT {\n maxWorkers?: number;\n port?: number;\n projectRoot?: string;\n resetCache?: boolean;\n watchFolders?: string[];\n sourceExts?: string[];\n reporter?: any;\n config?: string;\n}\n\n/**\n * Loads Metro Config and applies `options` on top of the resolved config.\n *\n * This allows the CLI to always overwrite the file settings.\n */\nexport default function load(\n ctx: ConfigLoadingContext,\n options?: ConfigOptionsT,\n): Promise<MetroConfig> {\n const defaultConfig = getDefaultConfig(ctx);\n if (options && options.reporter) {\n defaultConfig.reporter = options.reporter;\n }\n return loadConfig({cwd: ctx.root, ...options}, defaultConfig);\n}\n"]} |