Enhancing useRoute to use RouteRecordInfo meta type from RouteNamedMap

[joris-gallot]

I have a suggestion regarding the typing of useRoute, specifically concerning the meta property.

Currently, useRoute returns RouteLocationNormalizedLoadedTyped, which does not leverage the meta type defined in the RouteNamedMap. I believe there could be a more type-safe way to handle the meta property by incorporating it into RouteLocationNormalizedLoadedTyped

Here is a proposed enhancement:

interface RouteLocationNormalizedLoadedTyped<
  RouteMap extends _RouteMapGeneric = _RouteMapGeneric,
  Name extends keyof RouteMap = keyof RouteMap,
> extends RouteLocationNormalizedLoaded { {
    name: Extract<Name, RouteRecordName>;
    params: RouteMap[Name]['params'];
    meta: RouteMap[Name]['meta'];
}

By default, RouteMap[Name]['meta'] would have the type RouteMeta, preserving the current behavior while allowing for the meta type to be overridden in RouteRecordInfo

Example

interface RouteNamedMap {
    Home: RouteRecordInfo<'Home', '/', RouteParamsRaw, RouteParams, { foo: 'bar' }>;
	...
}

const route = useRoute<'Home'>()
route.meta // { foo: 'bar' }

[posva]

This is planned! Ideally we could even extract the type from definePage otherwise it could be passed as type parameter to a a generic definePage

[joris-gallot]

Thanks for the quick response! I'm generating the RouteNamedMap myself to use with the plugin, it's good to know that this feature is coming; I think I'll use a fork until these type changes are implemented, thanks!