Chris Tate 871284a382 Mutable-default snapshots, npm named re-exports, and perf_hooks performance.now ...

- export default <mutable let> registers Node's snapshot as const storage keyed by the default alias symbol; resolveValueSymbol's default-hop walk stops importer reads there instead of chasing to the live let (corpus 2426 pins the snapshot/live split against export { x as default })
- named re-exports from installed npm packages lower as import-plus-export plumbing: the island load registers at the statement's position and bindings key the aliased symbols direct imports use (npm case npm-reexport covers named, renamed, CJS, and as-default spellings)
- node:perf_hooks joins the supported builtins: performance.now() lowers to scr_perf_now (the uptime anchor's monotonic clock, fractional ms), and performance.now.bind(performance) lowers as a () => number function value (corpus 2427); both backends

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live.ts

Mutable-default snapshots, npm named re-exports, and perf_hooks performance.now

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m.ts

Mutable-default snapshots, npm named re-exports, and perf_hooks performance.now

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main.ts

Mutable-default snapshots, npm named re-exports, and perf_hooks performance.now

2026-07-22 23:21:59 -05:00