wip: defineContext

packages/runtime-core/src/helpers/useSetupContext.ts

@@ -0,0 +1,15 @@
+import { EMPTY_OBJ } from '@vue/shared'
+import { Slots } from '../componentSlots'
+
+interface DefaultContext {
+  props: Record<string, unknown>
+  attrs: Record<string, unknown>
+  emit: (...args: any[]) => void
+  slots: Slots
+}
+
+export function useSetupContext<T extends Partial<DefaultContext> = {}>(
+  opts?: any // TODO infer
+): { [K in keyof DefaultContext]: T[K] extends {} ? T[K] : DefaultContext[K] } {
+  return EMPTY_OBJ as any
+}

packages/runtime-core/src/index.ts

@@ -261,6 +261,8 @@ import {
   setCurrentRenderingInstance
 } from './componentRenderUtils'
 import { isVNode, normalizeVNode } from './vnode'
+import { Slots } from './componentSlots'
+import { EMPTY_OBJ } from '@vue/shared/src'
 
 const _ssrUtils = {
   createComponentInstance,