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Posted to jira@arrow.apache.org by "Dominik Moritz (Jira)" <ji...@apache.org> on 2021/05/15 05:09:00 UTC
[jira] [Resolved] (ARROW-12734) [JS] Arrow v4.0.0 breaks Snowpack
builds
[ https://issues.apache.org/jira/browse/ARROW-12734?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dominik Moritz resolved ARROW-12734.
------------------------------------
Resolution: Duplicate
> [JS] Arrow v4.0.0 breaks Snowpack builds
> ----------------------------------------
>
> Key: ARROW-12734
> URL: https://issues.apache.org/jira/browse/ARROW-12734
> Project: Apache Arrow
> Issue Type: Bug
> Components: JavaScript
> Affects Versions: 4.0.0
> Reporter: Jeffrey Heer
> Priority: Major
>
> 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>}}
>
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