This experimental syntax requires enabling the parser plugin: 'exportDefaultFrom'
我试图通过使用像jscodeshift
这样的facebook迁移工具将整个应用程序从react v15.6
迁移到v16.2
时遇到上述错误。
I solved this problem.
const parser = require('./src/parser');
const jscodeshift = require('jscodeshift').withParser(parser);
./src/parser:
'use strict';
const babylon = require('babylon');
// These are the options that were the default of the Babel5 parse function
// see https://github.com/babel/babel/blob/5.x/packages/babel/src/api/node.js#L81
const options = {
sourceType: 'module',
allowHashBang: true,
ecmaVersion: Infinity,
allowImportExportEverywhere: true,
allowReturnOutsideFunction: true,
plugins: [
'estree',
'jsx',
'asyncGenerators',
'classProperties',
'doExpressions',
'exportExtensions',
'functionBind',
'functionSent',
'objectRestSpread',
'dynamicImport',
'nullishCoalescingOperator',
'optionalChaining',
'exportDefaultFrom'
],
};
/**
* Wrapper to set default options
*/
exports.parse = function parse (code) {
return babylon.parse(code, options);
};
Please add the 'exportDefaultFrom' into plugins.
将@ babel / plugin-proposal-export-default-from( https://git.io/vb4yH )添加到Babel配置的“插件”部分以启用转换。
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