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This commit is contained in:
Kismet Hasanaj
+195
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import path from 'node:path';
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import { readFileSync, existsSync } from 'node:fs';
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import { pathToFileURL } from 'node:url';
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import * as CommentJson from 'next/dist/compiled/comment-json';
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import { deregisterHook, registerHook, requireFromString } from './require-hook';
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import { warn, warnOnce } from '../output/log';
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import { getNodeOptionsArgs } from '../../server/lib/utils';
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function resolveSWCOptions(cwd, compilerOptions) {
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var _process_versions, _process;
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return {
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jsc: {
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parser: {
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syntax: 'typescript'
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},
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...compilerOptions.paths ? {
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paths: compilerOptions.paths
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} : {},
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...compilerOptions.baseUrl ? {
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baseUrl: path.resolve(cwd, compilerOptions.baseUrl)
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} : compilerOptions.paths ? {
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baseUrl: cwd
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} : {}
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},
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module: {
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type: 'commonjs'
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},
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isModule: 'unknown',
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env: {
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targets: {
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// Setting the Node.js version can reduce unnecessary code generation.
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node: ((_process = process) == null ? void 0 : (_process_versions = _process.versions) == null ? void 0 : _process_versions.node) ?? '20.19.0'
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}
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}
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};
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}
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function resolveExtends(extendsPath, currentConfigDir) {
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// Relative paths are resolved relative to the current config's directory
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if (extendsPath.startsWith('./') || extendsPath.startsWith('../') || path.isAbsolute(extendsPath)) {
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const resolved = path.resolve(currentConfigDir, extendsPath);
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// TypeScript allows omitting .json extension
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if (existsSync(resolved)) {
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return resolved;
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}
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if (!resolved.endsWith('.json') && existsSync(resolved + '.json')) {
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return resolved + '.json';
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}
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return resolved;
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}
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// Package paths - use require.resolve to find the package
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try {
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// Try resolving as a direct path within the package
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return require.resolve(extendsPath, {
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paths: [
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currentConfigDir
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]
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});
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} catch {
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// If that fails, try appending tsconfig.json for package names like "@tsconfig/node18"
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try {
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return require.resolve(extendsPath + '/tsconfig.json', {
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paths: [
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currentConfigDir
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]
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});
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} catch {
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// Return the original path and let it fail later with a clear error
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return path.resolve(currentConfigDir, extendsPath);
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}
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}
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}
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function loadTsConfigFile(configPath, visited) {
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const resolvedPath = path.resolve(configPath);
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if (visited.has(resolvedPath)) {
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return {};
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}
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visited.add(resolvedPath);
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if (!existsSync(resolvedPath)) {
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return {};
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}
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const configContent = readFileSync(resolvedPath, 'utf8');
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const config = CommentJson.parse(configContent);
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const configDir = path.dirname(resolvedPath);
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let mergedOptions = {};
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// Note that config options from `extends` should get overwritten, not merged
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if (config.extends) {
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const extendsList = Array.isArray(config.extends) ? config.extends : [
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config.extends
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];
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for (const extendsPath of extendsList){
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const parentConfigPath = resolveExtends(extendsPath, configDir);
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const parentOptions = loadTsConfigFile(parentConfigPath, visited);
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mergedOptions = {
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...mergedOptions,
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...parentOptions
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};
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}
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}
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const currentOptions = config.compilerOptions ?? {};
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mergedOptions = {
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...mergedOptions,
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paths: currentOptions.paths ?? mergedOptions.paths,
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baseUrl: currentOptions.baseUrl ?? mergedOptions.baseUrl
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};
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return mergedOptions;
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}
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async function loadTsConfig(dir) {
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// NOTE: This doesn't fully cover the edge case for setting
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// "typescript.tsconfigPath" in next config which is currently
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// a restriction.
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// It's a chicken-and-egg problem since we need to transpile
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// the next config to get that value.
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const resolvedTsConfigPath = path.join(dir, 'tsconfig.json');
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if (!existsSync(resolvedTsConfigPath)) {
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return {};
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}
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return loadTsConfigFile(resolvedTsConfigPath, new Set());
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}
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export async function transpileConfig({ nextConfigPath, dir }) {
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try {
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// envs are passed to the workers and preserve the flag
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if (process.env.__NEXT_NODE_NATIVE_TS_LOADER_ENABLED === 'true') {
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try {
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// Node.js v22.10.0+
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// Value is 'strip' or 'transform' based on how the feature is enabled.
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// https://nodejs.org/api/process.html#processfeaturestypescript
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// TODO: Remove `as any` once we bump @types/node to v22.10.0+
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if (process.features.typescript) {
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// Run import() here to catch errors and fallback to legacy resolution.
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return (await import(pathToFileURL(nextConfigPath).href)).default;
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}
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if (getNodeOptionsArgs().includes('--no-experimental-strip-types') || process.execArgv.includes('--no-experimental-strip-types')) {
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warnOnce(`Skipped resolving "${path.basename(nextConfigPath)}" using Node.js native TypeScript resolution because it was disabled by the "--no-experimental-strip-types" flag.` + ' Falling back to legacy resolution.' + ' Learn more: https://nextjs.org/docs/app/api-reference/config/typescript#using-nodejs-native-typescript-resolver-for-nextconfigts');
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}
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// Feature is not enabled, fallback to legacy resolution for current session.
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process.env.__NEXT_NODE_NATIVE_TS_LOADER_ENABLED = 'false';
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} catch (cause) {
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warnOnce(`Failed to import "${path.basename(nextConfigPath)}" using Node.js native TypeScript resolution.` + ' Falling back to legacy resolution.' + ' Learn more: https://nextjs.org/docs/app/api-reference/config/typescript#using-nodejs-native-typescript-resolver-for-nextconfigts', {
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cause
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});
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// Once failed, fallback to legacy resolution for current session.
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process.env.__NEXT_NODE_NATIVE_TS_LOADER_ENABLED = 'false';
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}
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}
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const compilerOptions = await loadTsConfig(dir);
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return handleCJS({
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dir,
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nextConfigPath,
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compilerOptions
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});
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} catch (cause) {
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throw Object.defineProperty(new Error(`Failed to transpile "${path.basename(nextConfigPath)}".`, {
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cause
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}), "__NEXT_ERROR_CODE", {
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value: "E797",
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enumerable: false,
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configurable: true
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});
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}
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}
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async function handleCJS({ dir, nextConfigPath, compilerOptions }) {
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const swcOptions = resolveSWCOptions(dir, compilerOptions);
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let hasRequire = false;
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try {
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var _config_experimental;
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const nextConfigString = readFileSync(nextConfigPath, 'utf8');
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// lazy require swc since it loads React before even setting NODE_ENV
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// resulting loading Development React on Production
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const { loadBindings } = require('../swc');
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const bindings = await loadBindings();
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const { code } = await bindings.transform(nextConfigString, swcOptions);
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// register require hook only if require exists
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if (code.includes('require(')) {
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registerHook(swcOptions);
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hasRequire = true;
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}
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// filename & extension don't matter here
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const config = requireFromString(code, path.resolve(dir, 'next.config.compiled.js'));
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// At this point we have already loaded the bindings without this configuration setting due to the `transform` call above.
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// Possibly we fell back to wasm in which case, it all works out but if not we need to warn
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// that the configuration was ignored.
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if ((config == null ? void 0 : (_config_experimental = config.experimental) == null ? void 0 : _config_experimental.useWasmBinary) && !bindings.isWasm) {
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warn('Using a next.config.ts file is incompatible with `experimental.useWasmBinary` unless ' + '`--experimental-next-config-strip-types` is also passed.\nSetting `useWasmBinary` to `false');
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config.experimental.useWasmBinary = false;
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}
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return config;
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} catch (error) {
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throw error;
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} finally{
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if (hasRequire) {
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deregisterHook();
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}
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}
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}
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//# sourceMappingURL=transpile-config.js.map
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