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Chris Tate
871284a382
- 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
13 lines
353 B
TypeScript
13 lines
353 B
TypeScript
// `export default <mutable identifier>` — Node SNAPSHOTS the value when the
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// export statement runs; later writes to the let stay invisible through the
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// importer's default binding (the named exports below stay LIVE).
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let v = 1;
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v = v + 1;
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export default v;
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export function bump(): void {
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v = 99;
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}
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export function read(): number {
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return v;
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}
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