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fix(reactivity): Map.set should trigger when adding new entry with undefined value (#364)

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Cr 2019-10-23 23:00:55 +08:00 committed by Evan You
parent 09c248ae87
commit 246cad7459
3 changed files with 32 additions and 28 deletions
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17
packages/reactivity/__tests__/collections/Map.spec.ts
View File

@ -185,21 +185,24 @@ describe('reactivity/collections', () => {
expect(dummy).toBe(undefined)
expect(mapSpy).toHaveBeenCalledTimes(1)
map.set('key', 'value')
expect(dummy).toBe('value')
map.set('key', undefined)
expect(dummy).toBe(undefined)
expect(mapSpy).toHaveBeenCalledTimes(2)
map.set('key', 'value')
expect(dummy).toBe('value')
expect(mapSpy).toHaveBeenCalledTimes(2)
map.delete('key')
expect(dummy).toBe(undefined)
expect(mapSpy).toHaveBeenCalledTimes(3)
map.set('key', 'value')
expect(dummy).toBe('value')
expect(mapSpy).toHaveBeenCalledTimes(3)
map.delete('key')
expect(dummy).toBe(undefined)
expect(mapSpy).toHaveBeenCalledTimes(3)
expect(mapSpy).toHaveBeenCalledTimes(4)
map.delete('key')
expect(dummy).toBe(undefined)
expect(mapSpy).toHaveBeenCalledTimes(4)
map.clear()
expect(dummy).toBe(undefined)
expect(mapSpy).toHaveBeenCalledTimes(3)
expect(mapSpy).toHaveBeenCalledTimes(4)
})
it('should not observe raw data', () => {

15
packages/reactivity/__tests__/collections/WeakMap.spec.ts
View File

@ -46,18 +46,21 @@ describe('reactivity/collections', () => {
expect(dummy).toBe(undefined)
expect(mapSpy).toHaveBeenCalledTimes(1)
map.set(key, 'value')
expect(dummy).toBe('value')
map.set(key, undefined)
expect(dummy).toBe(undefined)
expect(mapSpy).toHaveBeenCalledTimes(2)
map.set(key, 'value')
expect(dummy).toBe('value')
expect(mapSpy).toHaveBeenCalledTimes(2)
map.delete(key)
expect(dummy).toBe(undefined)
expect(mapSpy).toHaveBeenCalledTimes(3)
map.set(key, 'value')
expect(dummy).toBe('value')
expect(mapSpy).toHaveBeenCalledTimes(3)
map.delete(key)
expect(dummy).toBe(undefined)
expect(mapSpy).toHaveBeenCalledTimes(3)
expect(mapSpy).toHaveBeenCalledTimes(4)
map.delete(key)
expect(dummy).toBe(undefined)
expect(mapSpy).toHaveBeenCalledTimes(4)
})
it('should not observe raw data', () => {

6
packages/reactivity/src/collectionHandlers.ts
View File

@ -68,23 +68,21 @@ function set(this: MapTypes, key: unknown, value: unknown) {
const hadKey = proto.has.call(target, key)
const oldValue = proto.get.call(target, key)
const result = proto.set.call(target, key, value)
if (value !== oldValue) {
/* istanbul ignore else */
if (__DEV__) {
const extraInfo = { oldValue, newValue: value }
if (!hadKey) {
trigger(target, OperationTypes.ADD, key, extraInfo)
} else {
} else if (value !== oldValue) {
trigger(target, OperationTypes.SET, key, extraInfo)
}
} else {
if (!hadKey) {
trigger(target, OperationTypes.ADD, key)
} else {
} else if (value !== oldValue) {
trigger(target, OperationTypes.SET, key)
}
}
}
return result
}