From 980cd03c97924530bb58444bd4bf1267d121c0ee Mon Sep 17 00:00:00 2001
From: Ako Tulu <ako@koodinurk.ee>
Date: Mon, 13 Jan 2025 06:18:21 +0200
Subject: [PATCH 1/2] fix(runtime-core): type ExposedKeys removed defined
 properties on component instace

---
 packages/runtime-core/src/componentPublicInstance.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/runtime-core/src/componentPublicInstance.ts b/packages/runtime-core/src/componentPublicInstance.ts
index e9e7770ebd9..e7aa7adf0d3 100644
--- a/packages/runtime-core/src/componentPublicInstance.ts
+++ b/packages/runtime-core/src/componentPublicInstance.ts
@@ -285,7 +285,7 @@ export type CreateComponentPublicInstanceWithMixins<
 export type ExposedKeys<
   T,
   Exposed extends string & keyof T,
-> = '' extends Exposed ? T : Pick<T, Exposed>
+> = Exposed extends string ? T : Pick<T, Exposed>
 
 // public properties exposed on the proxy, which is used as the render context
 // in templates (as `this` in the render option)

From 3fb85cf44321574b13ea696bbcb294583520e71c Mon Sep 17 00:00:00 2001
From: Ako Tulu <ako@koodinurk.ee>
Date: Wed, 22 Jan 2025 08:34:56 +0200
Subject: [PATCH 2/2] test(runtime-core): fixed expose typing test

---
 packages-private/dts-test/defineComponent.test-d.tsx | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/packages-private/dts-test/defineComponent.test-d.tsx b/packages-private/dts-test/defineComponent.test-d.tsx
index fda3ca4856c..ffd968c4fa9 100644
--- a/packages-private/dts-test/defineComponent.test-d.tsx
+++ b/packages-private/dts-test/defineComponent.test-d.tsx
@@ -1620,7 +1620,7 @@ describe('expose typing', () => {
       some: String,
     },
     data() {
-      return { a: 1, b: '2', c: 1 }
+      return { c: 1, d: '2', e: 1 }
     },
   })
 
@@ -1630,11 +1630,14 @@ describe('expose typing', () => {
   // internal should still be exposed
   vm.$props
 
-  expectType<number>(vm.a)
-  expectType<string>(vm.b)
+  expectType<number>(vm.c)
+  expectType<string>(vm.d)
+  expectType<number>(vm.e)
 
   // @ts-expect-error shouldn't be exposed
-  vm.c
+  vm.a
+  // @ts-expect-error shouldn't be exposed
+  vm.b
 })
 
 import type {