From 71a753f323dbca21087511dcfeb0c9225b01c579 Mon Sep 17 00:00:00 2001
From: Soybean <honghuangdc@gmail.com>
Date: Wed, 24 Aug 2022 19:21:22 +0800
Subject: [PATCH] =?UTF-8?q?build(projects):=20=E5=BC=95=E5=85=A5TS?=
 =?UTF-8?q?=E9=AB=98=E7=BA=A7=E7=B1=BB=E5=9E=8B=E5=BA=93?=
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---
 package.json           |  1 +
 src/typings/utils.d.ts | 10 ++++++++++
 2 files changed, 11 insertions(+)

diff --git a/package.json b/package.json
index 06272418..1d935fe2 100644
--- a/package.json
+++ b/package.json
@@ -109,6 +109,7 @@
     "unplugin-icons": "^0.14.8",
     "unplugin-vue-components": "0.22.4",
     "unplugin-vue-define-options": "^0.10.0",
+    "utility-types": "^3.10.0",
     "vite": "^3.0.9",
     "vite-plugin-compression": "^0.5.1",
     "vite-plugin-html": "^3.2.0",
diff --git a/src/typings/utils.d.ts b/src/typings/utils.d.ts
index 9eba0802..ed3d8751 100644
--- a/src/typings/utils.d.ts
+++ b/src/typings/utils.d.ts
@@ -10,4 +10,14 @@ declare namespace TypeUtil {
   type FirstOfArray<T extends any[]> = T extends [infer First, ...infer _Rest] ? First : never;
 
   type LastOfArray<T extends any[]> = T extends [...infer _Rest, infer Last] ? Last : never;
+
+  // union to tuple
+  type Union2IntersectionFn<T> = (T extends unknown ? (k: () => T) => void : never) extends (k: infer R) => void
+    ? R
+    : never;
+  type GetUnionLast<U> = Union2IntersectionFn<U> extends () => infer I ? I : never;
+
+  type UnionToTuple<T, R extends any[] = []> = [T] extends [never]
+    ? R
+    : UnionToTuple<Exclude<T, GetUnionLast<T>>, [GetUnionLast<T>, ...R]>;
 }