DevTools: guard against undefined component stack in Profiler SidebarEventInfo #35054
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…o.js; remove type annotations for JS compatibility. Fixes facebook#35049
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| <ul className={styles.List}> | ||
| {stackToComponentLocations(componentStack).map( | ||
| {(stackToComponentLocations(componentStack) || []).map( |
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stackToComponentLocations always returns an array
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Fixes a crash in the DevTools Profiler where calling
.mapon an undefined component stack could throw: "Cannot read properties of undefined (reading 'map')". See issue #35049.What I changed:
stackToComponentLocations(componentStack)is treated as an array before calling.mapinpackages/react-devtools-shared/src/devtools/views/Profiler/SidebarEventInfo.js.SidebarEventInfo.jsto keep the file valid JavaScript in this build.Why:
componentStackwas undefined (e.g. during navigation in React Native), the code attempted to call.mapon the result, causing the Profiler to crash. Guarding the.mapcall prevents the crash.Notes / Testing:
fix/profiler-crash-35049in my fork (Abhra0404/react).This PR references and aims to address #35049.