From 8df3e0a41e4aaa573cfd2eff3bff4683f718d8a0 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 14 Oct 2019 17:40:56 -0400
Subject: [PATCH] refactor: move looseEqual to vModel

---
 packages/runtime-dom/src/directives/vModel.ts | 39 +++++++++++++++++-
 packages/shared/src/index.ts                  | 41 -------------------
 2 files changed, 38 insertions(+), 42 deletions(-)

diff --git a/packages/runtime-dom/src/directives/vModel.ts b/packages/runtime-dom/src/directives/vModel.ts
index 96acadf2..1df9a05e 100644
--- a/packages/runtime-dom/src/directives/vModel.ts
+++ b/packages/runtime-dom/src/directives/vModel.ts
@@ -1,6 +1,6 @@
 import { Directive, VNode, DirectiveBinding, warn } from '@vue/runtime-core'
 import { addEventListener } from '../modules/events'
-import { looseEqual, isArray } from '@vue/shared'
+import { isArray, isObject } from '@vue/shared'
 
 const getModelAssigner = (vnode: VNode): ((value: any) => void) =>
   vnode.props!['onUpdate:modelValue']
@@ -168,6 +168,43 @@ function setSelected(el: HTMLSelectElement, value: any) {
   }
 }
 
+function looseEqual(a: any, b: any): boolean {
+  if (a === b) return true
+  const isObjectA = isObject(a)
+  const isObjectB = isObject(b)
+  if (isObjectA && isObjectB) {
+    try {
+      const isArrayA = isArray(a)
+      const isArrayB = isArray(b)
+      if (isArrayA && isArrayB) {
+        return (
+          a.length === b.length &&
+          a.every((e: any, i: any) => looseEqual(e, b[i]))
+        )
+      } else if (a instanceof Date && b instanceof Date) {
+        return a.getTime() === b.getTime()
+      } else if (!isArrayA && !isArrayB) {
+        const keysA = Object.keys(a)
+        const keysB = Object.keys(b)
+        return (
+          keysA.length === keysB.length &&
+          keysA.every(key => looseEqual(a[key], b[key]))
+        )
+      } else {
+        /* istanbul ignore next */
+        return false
+      }
+    } catch (e) {
+      /* istanbul ignore next */
+      return false
+    }
+  } else if (!isObjectA && !isObjectB) {
+    return String(a) === String(b)
+  } else {
+    return false
+  }
+}
+
 function looseIndexOf(arr: any[], val: any): number {
   return arr.findIndex(item => looseEqual(item, val))
 }
diff --git a/packages/shared/src/index.ts b/packages/shared/src/index.ts
index f4ce62a4..2b8a1023 100644
--- a/packages/shared/src/index.ts
+++ b/packages/shared/src/index.ts
@@ -64,44 +64,3 @@ export const hyphenate = (str: string): string => {
 export const capitalize = (str: string): string => {
   return str.charAt(0).toUpperCase() + str.slice(1)
 }
-
-/**
- * Check if two values are loosely equal - that is,
- * if they are plain objects, do they have the same shape?
- */
-export function looseEqual(a: any, b: any): boolean {
-  if (a === b) return true
-  const isObjectA = isObject(a)
-  const isObjectB = isObject(b)
-  if (isObjectA && isObjectB) {
-    try {
-      const isArrayA = isArray(a)
-      const isArrayB = isArray(b)
-      if (isArrayA && isArrayB) {
-        return (
-          a.length === b.length &&
-          a.every((e: any, i: any) => looseEqual(e, b[i]))
-        )
-      } else if (a instanceof Date && b instanceof Date) {
-        return a.getTime() === b.getTime()
-      } else if (!isArrayA && !isArrayB) {
-        const keysA = Object.keys(a)
-        const keysB = Object.keys(b)
-        return (
-          keysA.length === keysB.length &&
-          keysA.every(key => looseEqual(a[key], b[key]))
-        )
-      } else {
-        /* istanbul ignore next */
-        return false
-      }
-    } catch (e) {
-      /* istanbul ignore next */
-      return false
-    }
-  } else if (!isObjectA && !isObjectB) {
-    return String(a) === String(b)
-  } else {
-    return false
-  }
-}