Details
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Bug
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Status: Closed
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Major
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Resolution: Duplicate
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4.0.0
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None
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None
Description
Snowpack builds break as of Apache Arrow v4.0.0, with the following error:
ReferenceError: Cannot access 'Buffer' before initialization
at eval (eval at <anonymous> (https://cdn.skypack.dev/-/apache-arrow@v4.0.0-R0opCrO48cH4DMah69zo/dist=es2020,mode=imports/optimized/apache-arrow.js:6:17), <anonymous>:1:1)
at https://cdn.skypack.dev/-/apache-arrow@v4.0.0-R0opCrO48cH4DMah69zo/dist=es2020,mode=imports/optimized/apache-arrow.js:6:17
I believe this also breaks other bundlers that use hot module replacement, such as Vite (https://github.com/vitejs/vite).
This appears to be caused by the following line of exported code, which makes potentially problematic use of "eval":
const _Buffer = eval("typeof Buffer === 'function' ? Buffer : null");
Note that Arrow version 3 works without incident. This error was reported by a user of the Arquero library (https://github.com/uwdata/arquero/issues/166) as it is breaking their build.
To reproduce, load the following HTML:
<!DOCTYPE html>
<html lang="en">
<body>
<script type="module">
import * as Arrow from "https://cdn.skypack.dev/apache-arrow@4.0.0";
console.log(Arrow);
</script>
</body>
</html>
Attachments
Issue Links
- duplicates
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ARROW-12578 [JS] Simplify UTF8 handling in NodeJS
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- Resolved
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