react/fixtures/flight/loader/region.js

74 lines
2.1 KiB
JavaScript

import {
resolve,
load as reactLoad,
getSource as getSourceImpl,
transformSource as reactTransformSource,
} from 'react-server-dom-webpack/node-loader';
export {resolve};
import babel from '@babel/core';
const babelOptions = {
babelrc: false,
ignore: [/\/(build|node_modules)\//],
plugins: [
'@babel/plugin-syntax-import-meta',
'@babel/plugin-transform-react-jsx',
],
};
async function babelLoad(url, context, defaultLoad) {
const {format} = context;
const result = await defaultLoad(url, context, defaultLoad);
if (result.format === 'module') {
const opt = Object.assign({filename: url}, babelOptions);
const newResult = await babel.transformAsync(result.source, opt);
if (!newResult) {
if (typeof result.source === 'string') {
return result;
}
return {
source: Buffer.from(result.source).toString('utf8'),
format: 'module',
};
}
return {source: newResult.code, format: 'module'};
}
return defaultLoad(url, context, defaultLoad);
}
export async function load(url, context, defaultLoad) {
return await reactLoad(url, context, (u, c) => {
return babelLoad(u, c, defaultLoad);
});
}
async function babelTransformSource(source, context, defaultTransformSource) {
const {format} = context;
if (format === 'module') {
const opt = Object.assign({filename: context.url}, babelOptions);
const newResult = await babel.transformAsync(source, opt);
if (!newResult) {
if (typeof source === 'string') {
return {source};
}
return {
source: Buffer.from(source).toString('utf8'),
};
}
return {source: newResult.code};
}
return defaultTransformSource(source, context, defaultTransformSource);
}
async function transformSourceImpl(source, context, defaultTransformSource) {
return await reactTransformSource(source, context, (s, c) => {
return babelTransformSource(s, c, defaultTransformSource);
});
}
export const transformSource =
process.version < 'v16' ? transformSourceImpl : undefined;
export const getSource = process.version < 'v16' ? getSourceImpl : undefined;