Devtools: improve getID guard (#19364)
Dominic Gannaway committed
Jul 15, 2020 at 14:17 UTC
45eef8b6b5df27c661b3e33e579abc11b563c65b
1 file changed
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-1
packages/react-devtools-shared/src/backend/legacy/renderer.js
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@@ -165,7 +165,7 @@ export function attach(
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}
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function getID(internalInstance: InternalInstance): number {
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- if (typeof internalInstance !== 'object') {
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+ if (typeof internalInstance !== 'object' || internalInstance === null) {
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throw new Error('Invalid internal instance: ' + internalInstance);
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}
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if (!internalInstanceToIDMap.has(internalInstance)) {