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import type { webpack } from 'next/dist/compiled/webpack/webpack'
import {
BARREL_OPTIMIZATION_PREFIX,
RSC_MODULE_TYPES,
} from '../../../shared/lib/constants'
import { getModuleBuildInfo } from './get-module-build-info'
import { regexCSS } from './utils'
/**
* { [client import path]: [exported names] }
*/
export type ClientComponentImports = Record<string, Set<string>>
export type CssImports = Record<string, string[]>
export type NextFlightClientEntryLoaderOptions = {
modules: string[] | string
/** This is transmitted as a string to `getOptions` */
server: boolean | 'true' | 'false'
}
export type FlightClientEntryModuleItem = {
// module path
request: string
// imported identifiers
ids: string[]
}
export default function transformSource(
this: webpack.LoaderContext<NextFlightClientEntryLoaderOptions>
) {
let { modules, server } = this.getOptions()
const isServer = server === 'true'
if (!Array.isArray(modules)) {
modules = modules ? [modules] : []
}
const code = modules
.map((x) => JSON.parse(x) as FlightClientEntryModuleItem)
// Filter out CSS files in the SSR compilation
.filter(({ request }) => (isServer ? !regexCSS.test(request) : true))
.map(({ request, ids }: FlightClientEntryModuleItem) => {
const importPath = JSON.stringify(
request.startsWith(BARREL_OPTIMIZATION_PREFIX)
? request.replace(':', '!=!')
: request
)
// When we cannot determine the export names, we use eager mode to include the whole module.
// Otherwise, we use eager mode with webpackExports to only include the necessary exports.
// If we have '*' in the ids, we include all the imports
if (ids.length === 0 || ids.includes('*')) {
return `import(/* webpackMode: "eager" */ ${importPath});\n`
} else {
return `import(/* webpackMode: "eager", webpackExports: ${JSON.stringify(
ids
)} */ ${importPath});\n`
}
})
.join(';\n')
const buildInfo = getModuleBuildInfo(this._module!)
buildInfo.rsc = {
type: RSC_MODULE_TYPES.client,
}
if (process.env.BUILTIN_FLIGHT_CLIENT_ENTRY_PLUGIN) {
const rscModuleInformationJson = JSON.stringify(buildInfo.rsc)
return (
`/* __rspack_internal_rsc_module_information_do_not_use__ ${rscModuleInformationJson} */\n` +
code
)
}
return code
}
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