refactor: use server.ssrTransform
#9769
Merged
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Description
I am investigating the potential perf improvements of Vitest, and found that
ssrTransform
is taking a lot of time since it runs full AST parsing in JS for all modules. I am experimenting with a native port for this transformation to speed it up. This PR allows to swap the ssrTransform logic by replacingserver.ssrTransform
in a plugin and make the experiment testing outside of Vite core. (/cc @patak-dev)Additional context
What is the purpose of this pull request?
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fixes #123
).