fix(types): expose ExtractPropTypes type, close #628

Author: antfu

src/component/index.ts

@@ -2,4 +2,9 @@ export { defineComponent } from './defineComponent'
 export { SetupFunction, SetupContext } from './componentOptions'
 export { ComponentInstance, ComponentRenderProxy } from './componentProxy'
 export { Data } from './common'
-export { PropType, PropOptions } from './componentProps'
+export {
+  PropType,
+  PropOptions,
+  ExtractPropTypes,
+  ExtractDefaultPropTypes,
+} from './componentProps'

src/index.ts

@@ -5,14 +5,9 @@ import { Plugin } from './install'
 export const version = __VERSION__
 
 export * from './apis'
+export * from './component'
 export { getCurrentInstance } from './runtimeContext'
-export {
-  defineComponent,
-  ComponentRenderProxy,
-  PropType,
-  PropOptions,
-  SetupContext,
-} from './component'
+
 export default Plugin
 
 declare module 'vue/types/options' {