Skip to content

Fix memo and lazy element types being considered elements #14546

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Closed
eps1lon wants to merge 1 commit into from
Closed

Fix memo and lazy element types being considered elements #14546

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 2 additions & 2 deletions packages/react-is/src/ReactIs.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -48,14 +48,14 @@ export function typeOf(object: any) {
switch ($$typeofType) {
case REACT_CONTEXT_TYPE:
case REACT_FORWARD_REF_TYPE:
case REACT_LAZY_TYPE:
case REACT_MEMO_TYPE:
case REACT_PROVIDER_TYPE:
return $$typeofType;
default:
return $$typeof;
}
}
case REACT_LAZY_TYPE:
case REACT_MEMO_TYPE:
case REACT_PORTAL_TYPE:
return $$typeof;
}
Expand Down
12 changes: 6 additions & 6 deletions packages/react-is/src/__tests__/ReactIs-test.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -150,17 +150,17 @@ describe('ReactIs', () => {

it('should identify memo', () => {
const Component = () => React.createElement('div');
const memoized = React.memo(Component);
expect(ReactIs.typeOf(memoized)).toBe(ReactIs.Memo);
expect(ReactIs.isMemo(memoized)).toBe(true);
const Memoized = React.memo(Component);
expect(ReactIs.typeOf(<Memoized />)).toBe(ReactIs.Memo);
expect(ReactIs.isMemo(<Memoized />)).toBe(true);
expect(ReactIs.isMemo(Component)).toBe(false);
});

it('should identify lazy', () => {
const Component = () => React.createElement('div');
const lazyComponent = React.lazy(() => Component);
expect(ReactIs.typeOf(lazyComponent)).toBe(ReactIs.Lazy);
expect(ReactIs.isLazy(lazyComponent)).toBe(true);
const LazyComponent = React.lazy(() => Component);
expect(ReactIs.typeOf(<LazyComponent />)).toBe(ReactIs.Lazy);
expect(ReactIs.isLazy(<LazyComponent />)).toBe(true);
expect(ReactIs.isLazy(Component)).toBe(false);
});

Expand Down