perf(vite): add fast component annotation transform#944
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TheAlexLichter
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Jun 27, 2026
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| import { transformAsync, traverse, types as t } from "@babel/core"; | ||
| import { parse } from "@babel/parser"; |
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Yes, this does use babel for testing as it is more convenient API-wise
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Jun 27, 2026
| }, void 0, false, { | ||
| fileName: _jsxFileName, | ||
| lineNumber: 4, | ||
| lineNumber: 6, |
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The updated line numbers are on purpose and actually "more correct" as they now point to the actual JSX component, not just the span around it.
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Resolves #943
This PR adds a port of the Babel transform for
reactComponentAnnotation.enabledthat works with Vite 8 + magic string, dramatically decreasing build time.I've also added parity tests and consolidated values to avoid drift of both implementations.
Vite 7 and fallback cases will use the existing Babel transform.
Both Babel and the Vite annotation backend are lazy-loaded to avoid unnecessary startup cost.