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Avoid new Set([iterable]) for thenables #14592

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Merged
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Jan 15, 2019
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Avoid new Set([iterable]) for thenables #14592

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3 changes: 2 additions & 1 deletion packages/react-reconciler/src/ReactFiberUnwindWork.js
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Original file line number Diff line number Diff line change
Expand Up @@ -214,7 +214,8 @@ function throwException(
// attach another listener to flip the boundary back to its normal state.
const thenables: Set<Thenable> = (workInProgress.updateQueue: any);
if (thenables === null) {
workInProgress.updateQueue = (new Set([thenable]): any);
workInProgress.updateQueue = (new Set(): any);
workInProgress.updateQueue.add(thenable);
} else {
thenables.add(thenable);
}
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