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next.js/packages/next-server/server/get-dynamic-import-bundles.ts

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export type ManifestItem = {
id: number|string,
name: string,
file: string,
publicPath: string
}
export type Manifest = {[moduleId: string]: ManifestItem[]}
type DynamicImportBundles = Set<ManifestItem>
// Based on https://github.com/jamiebuilds/react-loadable/pull/132
export function getDynamicImportBundles (manifest: Manifest, moduleIds: string[]): DynamicImportBundles {
return moduleIds.reduce((bundles: DynamicImportBundles, moduleId: string): DynamicImportBundles => {
if (typeof manifest[moduleId] === 'undefined') {
return bundles
}
manifest[moduleId].map((item) => bundles.add(item))
return bundles
}, new Set())
}