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h-a-n-a
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Sep 25, 2026
`import.meta.hot.acceptExports(names, cb)` lets a module accept its own
change only for the listed exports. An importer that reads only those
exports is left alone. An importer that reads any other export still
gets the update.
Rolldown ships the export names each importer reads, so the browser can
make the same decision. For each static import edge, the export names
the importer reads. `"*"` means the whole namespace (`import * as ns`,
`export * from`, `require()`, non-JS records). An empty list means a
side-effect-only import. Names are listed only for edges into a module
that calls `acceptExports`, and `bindings` holds only the rows that have
such an edge. A missing row or entry means `"*"`.
```js
// header.js: import { count } from './counter.js'
// title.js: import { label } from './counter.js'
// main.js: import './header.js'; import './title.js'
__rolldown_runtime__.registerGraph({
ids: ["main.js", "header.js", "title.js", "counter.js"],
localCount: 4,
edges: [[1, 2], [3], [3], []],
bindings: { 1: [["count"]], 2: [["label"]] },
dynamicEdges: [[], [], [], []],
})
```
Vite: vitejs/vite#23463
closes #10061
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Added support for
import.meta.hot.acceptExportsin bundled-dev mode.Blocked by rolldown/rolldown#10856, and upgrading to rolldown@1.2.12