path:packages/shared/ReactSideEffectTags.js
React side effects of mark
Source
export type SideEffectTag = number;
// Don't change these two values. They're used by React Dev Tools.
export const NoEffect = /* */ 0b000000000000;
export const PerformedWork = /* */ 0b000000000001;
// You can change the rest (and add more).
export const Placement = /* */ 0b000000000010;
export const Update = /* */ 0b000000000100;
export const PlacementAndUpdate = /* */ 0b000000000110;
export const Deletion = /* */ 0b000000001000;
export const ContentReset = /* */ 0b000000010000;
export const Callback = /* */ 0b000000100000;
export const DidCapture = /* */ 0b000001000000;
export const Ref = /* */ 0b000010000000;
export const Snapshot = /* */ 0b000100000000;
export const Passive = /* */ 0b001000000000;
// Passive & Update & Callback & Ref & Snapshot
export const LifecycleEffectMask = /* */ 0b001110100100;
// Union of all host effects
export const HostEffectMask = /* */ 0b001111111111;
export const Incomplete = /* */ 0b010000000000;
export const ShouldCapture = /* */ 0b100000000000;
复制代码
Remaining problem
Why do you want to use these marks represent a binary number? React source used in many places in the |=
operators
Reproduced in: https: //juejin.im/post/5d061cecf265da1bc23f76b6