From c2913d57d14449775faf1f2e5647e6d1f3d3f920 Mon Sep 17 00:00:00 2001
From: Carlos Rodrigues <david-181@hotmail.com>
Date: Wed, 19 Aug 2020 21:36:42 +0100
Subject: [PATCH] fix(types): handling PropType<Function> with default value
 (#1896)

fix #1891
---
 packages/runtime-core/src/componentProps.ts | 2 +-
 test-dts/defineComponent.test-d.tsx         | 7 +++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/packages/runtime-core/src/componentProps.ts b/packages/runtime-core/src/componentProps.ts
index 48636f65..90abf414 100644
--- a/packages/runtime-core/src/componentProps.ts
+++ b/packages/runtime-core/src/componentProps.ts
@@ -47,7 +47,7 @@ type DefaultFactory<T> = (props: Data) => T | null | undefined
 interface PropOptions<T = any, D = T> {
   type?: PropType<T> | true | null
   required?: boolean
-  default?: D | DefaultFactory<D> | null | undefined
+  default?: D | DefaultFactory<D> | null | undefined | object
   validator?(value: unknown): boolean
 }
 
diff --git a/test-dts/defineComponent.test-d.tsx b/test-dts/defineComponent.test-d.tsx
index 00dbe3c1..7a88c40b 100644
--- a/test-dts/defineComponent.test-d.tsx
+++ b/test-dts/defineComponent.test-d.tsx
@@ -30,6 +30,7 @@ describe('with object props', () => {
     fff: (a: number, b: string) => { a: boolean }
     hhh: boolean
     ggg: 'foo' | 'bar'
+    ffff: (a: number, b: string) => { a: boolean }
     validated?: string
   }
 
@@ -90,6 +91,11 @@ describe('with object props', () => {
         type: String as PropType<'foo' | 'bar'>,
         default: 'foo'
       },
+      // default + function
+      ffff: {
+        type: Function as PropType<(a: number, b: string) => { a: boolean }>,
+        default: (a: number, b: string) => ({ a: true })
+      },
       validated: {
         type: String,
         // validator requires explicit annotation
@@ -113,6 +119,7 @@ describe('with object props', () => {
       expectType<ExpectedProps['fff']>(props.fff)
       expectType<ExpectedProps['hhh']>(props.hhh)
       expectType<ExpectedProps['ggg']>(props.ggg)
+      expectType<ExpectedProps['ffff']>(props.ffff)
       expectType<ExpectedProps['validated']>(props.validated)
 
       // @ts-expect-error props should be readonly