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Merge pull request #2085 from reduxjs/feature/9.0-react-is-inline
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,113 @@ | ||
| import type { ElementType, MemoExoticComponent, ReactElement } from 'react' | ||
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| // Directly ported from: | ||
| // https://unpkg.com/browse/[email protected]/cjs/react-is.production.js | ||
| // It's very possible this could change in the future, but given that | ||
| // we only use these in `connect`, this is a low priority. | ||
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| const REACT_ELEMENT_TYPE = Symbol.for('react.element') | ||
| const REACT_PORTAL_TYPE = Symbol.for('react.portal') | ||
| const REACT_FRAGMENT_TYPE = Symbol.for('react.fragment') | ||
| const REACT_STRICT_MODE_TYPE = Symbol.for('react.strict_mode') | ||
| const REACT_PROFILER_TYPE = Symbol.for('react.profiler') | ||
| const REACT_PROVIDER_TYPE = Symbol.for('react.provider') | ||
| const REACT_CONTEXT_TYPE = Symbol.for('react.context') | ||
| const REACT_SERVER_CONTEXT_TYPE = Symbol.for('react.server_context') | ||
| const REACT_FORWARD_REF_TYPE = Symbol.for('react.forward_ref') | ||
| const REACT_SUSPENSE_TYPE = Symbol.for('react.suspense') | ||
| const REACT_SUSPENSE_LIST_TYPE = Symbol.for('react.suspense_list') | ||
| const REACT_MEMO_TYPE = Symbol.for('react.memo') | ||
| const REACT_LAZY_TYPE = Symbol.for('react.lazy') | ||
| const REACT_OFFSCREEN_TYPE = Symbol.for('react.offscreen') | ||
| const REACT_CLIENT_REFERENCE = Symbol.for('react.client.reference') | ||
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| export const ForwardRef = REACT_FORWARD_REF_TYPE | ||
| export const Memo = REACT_MEMO_TYPE | ||
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| export function isValidElementType(type: any): type is ElementType { | ||
| if (typeof type === 'string' || typeof type === 'function') { | ||
| return true | ||
| } // Note: typeof might be other than 'symbol' or 'number' (e.g. if it's a polyfill). | ||
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||
| if ( | ||
| type === REACT_FRAGMENT_TYPE || | ||
| type === REACT_PROFILER_TYPE || | ||
| type === REACT_STRICT_MODE_TYPE || | ||
| type === REACT_SUSPENSE_TYPE || | ||
| type === REACT_SUSPENSE_LIST_TYPE || | ||
| type === REACT_OFFSCREEN_TYPE | ||
| ) { | ||
| return true | ||
| } | ||
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| if (typeof type === 'object' && type !== null) { | ||
| if ( | ||
| type.$$typeof === REACT_LAZY_TYPE || | ||
| type.$$typeof === REACT_MEMO_TYPE || | ||
| type.$$typeof === REACT_PROVIDER_TYPE || | ||
| type.$$typeof === REACT_CONTEXT_TYPE || | ||
| type.$$typeof === REACT_FORWARD_REF_TYPE || // This needs to include all possible module reference object | ||
| // types supported by any Flight configuration anywhere since | ||
| // we don't know which Flight build this will end up being used | ||
| // with. | ||
| type.$$typeof === REACT_CLIENT_REFERENCE || | ||
| type.getModuleId !== undefined | ||
| ) { | ||
| return true | ||
| } | ||
| } | ||
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| return false | ||
| } | ||
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| function typeOf(object: any): symbol | undefined { | ||
| if (typeof object === 'object' && object !== null) { | ||
| const $$typeof = object.$$typeof | ||
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| switch ($$typeof) { | ||
| case REACT_ELEMENT_TYPE: { | ||
| const type = object.type | ||
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| switch (type) { | ||
| case REACT_FRAGMENT_TYPE: | ||
| case REACT_PROFILER_TYPE: | ||
| case REACT_STRICT_MODE_TYPE: | ||
| case REACT_SUSPENSE_TYPE: | ||
| case REACT_SUSPENSE_LIST_TYPE: | ||
| return type | ||
|
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| default: { | ||
| const $$typeofType = type && type.$$typeof | ||
|
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| switch ($$typeofType) { | ||
| case REACT_SERVER_CONTEXT_TYPE: | ||
| case REACT_CONTEXT_TYPE: | ||
| case REACT_FORWARD_REF_TYPE: | ||
| case REACT_LAZY_TYPE: | ||
| case REACT_MEMO_TYPE: | ||
| case REACT_PROVIDER_TYPE: | ||
| return $$typeofType | ||
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| default: | ||
| return $$typeof | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| case REACT_PORTAL_TYPE: { | ||
| return $$typeof | ||
| } | ||
| } | ||
| } | ||
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| return undefined | ||
| } | ||
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| export function isContextConsumer(object: any): object is ReactElement { | ||
| return typeOf(object) === REACT_CONTEXT_TYPE | ||
| } | ||
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| export function isMemo(object: any): object is MemoExoticComponent<any> { | ||
| return typeOf(object) === REACT_MEMO_TYPE | ||
| } |
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