[Vuejs]-Unresolvable type reference in Vue with Typescript

0👍

✅

Vue does not support generic types at the moment (vue@3.3.4)

(there is issue https://github.com/vuejs/core/issues/8482 )
(there is PR https://github.com/vuejs/core/pull/8511 )

The only ones are supported are hacked in via TS

const SupportedBuiltinsSet = new Set([
  'Partial',
  'Required',
  'Readonly',
  'Pick',
  'Omit'
] as const)

// [@vue/compiler-sfc] Unresolvable type reference or unsupported built-in utility type
// /home/projects/vitejs-vite-1sv1xj/src/components/HelloWorld.vue
// 2  |  import { ref } from 'vue'
// 3  |  
// 4  |  type Exactly<T> = T;
//    |                    ^
type Exactly<T> = T;
defineProps<Exactly<{ msg: string }>>()

See https://github.com/vuejs/core/blob/main/packages/compiler-sfc/src/script/resolveType.ts#L528