在工作中我被迫使用流类型，然而非常慢点，这里有一个演示问题的视频:
https://www.youtube.com/watch?v=hloQX8wG0t0
我已经尝试了一些事情，比如删除流类型的定义，摆脱循环依赖，等等…
在这一点上，我的想法，我也不知道如何调试的东西，有没有人有一个想法如何看到保存/每个按键后生成的依赖树?
编辑1:这是我当前的.flowconfig:
[ignore]
.*/node_modules/react-native-keyboard-aware-scroll-view/.*
.*/node_modules/react-native-fbsdk/.*
.*/node_modules/@react-native-community/picker.*
.*/node_modules/@react-native-community/slider.*
; remove when flow is updated. Currently leads to "Cannot assign rest to restState because rest [1] is incompatible with State [2]."
.*/node_modules/redux-persist/lib/persistReducer.js.flow
.*/node_modules/recompose/dist/Recompose.cjs.js.flow
; Ignores sub apps
.*/firebase/**
.*/webapp/**
.*/node_modules/react-native-androw/src.*
; Migration to RN 0,64 causes some random errors
.*/node_modules/react-navigation-redux-helpers
.*/node_modules/react-navigation-redux-helpers
.*/node_modules/react-native-calendars
; .*/node_modules/react-native/Libraries/Interaction
; .*/node_modules/react-native/Libraries/Logbox/Data
; We fork some components by platform
.*/*[.]android.js
; Ignore "BUCK" generated dirs
<PROJECT_ROOT>/.buckd/
; Ignore polyfills
node_modules/react-native/Libraries/polyfills/.*
; Flow doesn't support platforms
.*/Libraries/Utilities/LoadingView.js
[untyped]
.*/node_modules/@react-native-community/cli/.*/.*
.*/node_modules/react-native-confetti-cannon/.*
.*/node_modules/react-native-linear-gradient/.*
[libs]
node_modules/react-native/interface.js
node_modules/react-native/flow/
flow/libs
[options]
emoji=true
server.max_workers=1
sharedmemory.hash_table_pow=22
esproposal.optional_chaining=enable
esproposal.nullish_coalescing=enable
; RN 0.64 turns this on, our codebase explodes
; exact_by_default=true
module.file_ext=.js
module.file_ext=.json
module.file_ext=.ios.js
module.system.node.allow_root_relative=true
munge_underscores=true
module.name_mapper='^react-native/(.*)$' -> '<PROJECT_ROOT>/node_modules/react-native/1'
module.name_mapper='^@?[./a-zA-Z0-9$_-]+.(bmp|gif|jpg|jpeg|png|psd|svg|webp|m4v|mov|mp4|mpeg|mpg|webm|aac|aiff|caf|m4a|mp3|wav|html|pdf)$' -> '<PROJECT_ROOT>/node_modules/react-native/Libraries/Image/RelativeImageStub'
module.name_mapper.extension='svg' -> '<PROJECT_ROOT>/flow/SVGFlowStub.js'
suppress_type=$FlowIssue
suppress_type=$FlowFixMe
suppress_type=$FlowFixMeProps
suppress_type=$FlowFixMeState
; Types first is the architecture that forces very very strict rules (always export typed results)
; In order to increase the performance of flow (it is painfully slow)
; However our codebase is in no way shape or form ready for this (it throws around 567 type errors)
types_first=false
[lints]
sketchy-null-number=warn
sketchy-null-mixed=warn
sketchy-number=warn
untyped-type-import=warn
nonstrict-import=warn
deprecated-type=warn
unsafe-getters-setters=warn
unnecessary-invariant=warn
signature-verification-failure=warn
[strict]
deprecated-type
nonstrict-import
sketchy-null
unclear-type
unsafe-getters-setters
untyped-import
untyped-type-import
[version]
^0.137.0
我还尝试了一个不同的流插件，因为我认为这可能与插件向流服务器发出太多请求有关，这稍微提高了性能，但并不显着
编辑2:
我只是尝试了一堆事情，即删除了一堆我们重新组合的类型，然后也尝试将大部分类型提取到libDef…仍然没有
我真的认为问题出在我们的架构上，我们基本上在types/index.js文件中声明了我们所有的类型，每次我们想要使用它们时，我们都手动导入它们，例如import type { UUID } from 'src/types'，因为所有的类型都在那里声明了，所以依赖树没有错，它需要在每次更改/保存
3 编辑我最终解析了整个应用程序的依赖树，以找出是否有什么真的错了…我得出的结论是，流没有做错什么，但我们的导入是罪魁祸首，主要是(我认为)由于Redux和Sagas，拉一个导入结束重新检查整个应用。
你可以在这里找到我是如何发现的:
https://ospfranco.com/post/2021/08/25/how-to-visualize-flowtype-dependency-tree/
多谢!
我最终分析了整个应用程序的依赖树，以找出是否真的有问题…我得出的结论是，流没有做错什么，但我们的导入是罪魁祸首，主要是(我认为)由于Redux和Sagas，拉一个导入结束重新检查整个应用。
你可以在这里找到我是如何发现的:
https://ospfranco.com/post/2021/08/25/how-to-visualize-flowtype-dependency-tree/