| import { | |
| type RouteMatchFn, | |
| getRouteMatcher, | |
| } from '../../shared/lib/router/utils/route-matcher' | |
| import { getRouteRegex } from '../../shared/lib/router/utils/route-regex' | |
| // The last page and matcher that this function handled. | |
| let last: { | |
| page: string | |
| matcher: RouteMatchFn | |
| } | null = null | |
| /** | |
| * Gets the params for the provided page. | |
| * @param page the page that contains dynamic path parameters | |
| * @param pathname the pathname to match | |
| * @returns the matches that were found, throws otherwise | |
| */ | |
| export function getParams(page: string, pathname: string) { | |
| // Because this is often called on the output of `getStaticPaths` or similar | |
| // where the `page` here doesn't change, this will "remember" the last page | |
| // it created the RegExp for. If it matches, it'll just re-use it. | |
| let matcher: RouteMatchFn | |
| if (last?.page === page) { | |
| matcher = last.matcher | |
| } else { | |
| matcher = getRouteMatcher(getRouteRegex(page)) | |
| } | |
| const params = matcher(pathname) | |
| if (!params) { | |
| throw new Error( | |
| `The provided export path '${pathname}' doesn't match the '${page}' page.\nRead more: https://nextjs.org/docs/messages/export-path-mismatch` | |
| ) | |
| } | |
| return params | |
| } | |