fix(core): fix ArrayField operation will trigger memo leak (#1831)

Author: janryWang

packages/core/src/__tests__/array.spec.ts

@@ -1,4 +1,5 @@
 import { createForm } from '../'
+import { onFieldValueChange, onFormValuesChange } from '../effects'
 import { attach } from './shared'
 
 test('create array field', () => {
@@ -281,3 +282,38 @@ test('array field move api with children', async () => {
   expect(form.fields['array.0.name']).not.toBeUndefined()
   expect(form.fields['array.2.name']).toBeUndefined()
 })
+
+test('array field remove memo leak', async () => {
+  const handler = jest.fn()
+  const valuesChange = jest.fn()
+  const form = attach(
+    createForm({
+      effects() {
+        onFormValuesChange(valuesChange)
+        onFieldValueChange('*', handler)
+      },
+    })
+  )
+  const array = attach(
+    form.createArrayField({
+      name: 'array',
+    })
+  )
+  await array.push('')
+  attach(
+    form.createField({
+      name: '0',
+      basePath: 'array',
+    })
+  )
+  await array.remove(0)
+  await array.push('')
+  attach(
+    form.createField({
+      name: '0',
+      basePath: 'array',
+    })
+  )
+  expect(handler).toBeCalledTimes(1)
+  expect(valuesChange).toBeCalledTimes(4)
+})

packages/core/src/models/ArrayField.ts

@@ -52,35 +52,35 @@ export class ArrayField<
     if (!isArr(this.value)) return
     return batch(() => {
       const index = this.value.length - 1
-      this.value.pop()
       spliceArrayState(this, {
         startIndex: index,
         deleteCount: 1,
       })
+      this.value.pop()
       return this.onInput(this.value)
     })
   }
 
   insert = async (index: number, ...items: any[]) => {
     if (!isArr(this.value)) return
     return batch(() => {
-      this.value.splice(index, 0, ...items)
       spliceArrayState(this, {
         startIndex: index,
         insertCount: items.length,
       })
+      this.value.splice(index, 0, ...items)
       return this.onInput(this.value)
     })
   }
 
   remove = async (index: number) => {
     if (!isArr(this.value)) return
     return batch(() => {
-      this.value.splice(index, 1)
       spliceArrayState(this, {
         startIndex: index,
         deleteCount: 1,
       })
+      this.value.splice(index, 1)
       return this.onInput(this.value)
     })
   }
@@ -96,11 +96,11 @@ export class ArrayField<
   unshift = async (...items: any[]) => {
     if (!isArr(this.value)) return
     return batch(() => {
-      this.value.unshift(...items)
       spliceArrayState(this, {
         startIndex: 0,
         insertCount: items.length,
       })
+      this.value.unshift(...items)
       return this.onInput(this.value)
     })
   }

packages/core/src/shared/internals.ts

@@ -662,16 +662,20 @@ export const triggerFormInitialValuesChange = (
   form: Form,
   change: DataChange
 ) => {
-  if (change.path[0] === 'initialValues') {
+  const path = change.path
+  if (path[path.length - 1] === 'length') return
+  if (path[0] === 'initialValues') {
     if (change.type === 'add' || change.type === 'set') {
-      applyValuesPatch(form, change.path.slice(1), change.value)
+      applyValuesPatch(form, path.slice(1), change.value)
     }
     form.notify(LifeCycleTypes.ON_FORM_INITIAL_VALUES_CHANGE)
   }
 }
 
 export const triggerFormValuesChange = (form: Form, change: DataChange) => {
-  if (change.path[0] === 'values') {
+  const path = change.path
+  if (path[path.length - 1] === 'length') return
+  if (path[0] === 'values') {
     form.notify(LifeCycleTypes.ON_FORM_VALUES_CHANGE)
   }
 }