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lib: fix TypeError when converting a detached buffer source #44020

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merged 2 commits into from Nov 1, 2022
Merged

lib: fix TypeError when converting a detached buffer source #44020

merged 2 commits into from Nov 1, 2022

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cola119
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@cola119 cola119 commented Jul 28, 2022

Currently TextDecoder.decode will throw TypeError when a detached buffer is given since it will try to convert a detached buffer into new buffer. This PR fixed TypeError by checking if a buffer is detached.

const buffer = new ArrayBuffer(1);
new MessageChannel().port1.postMessage(buffer, [buffer]); // buffer is detached
const decoder = new TextDecoder();
decoder.decode(buffer);
// node: TypeError: Cannot perform Construct on a detached ArrayBuffer
// chrome/safari/deno: ""

@nodejs-github-bot nodejs-github-bot added encoding Issues and PRs related to the TextEncoder and TextDecoder APIs. needs-ci PRs that need a full CI run. labels Jul 28, 2022
@cola119 cola119 force-pushed the fix-type-error-of-detached-buffer branch from bbb15af to ad6a134 Compare July 28, 2022 09:08
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As a user, I would rather have the error than an empty buffer. The reason is that with the empty buffer, I just do not realize that something does not work as I expected.

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cola119 commented Jul 28, 2022

I personally would like Node.js to have the same behavior as Web browser, especially in encoding APIs because many times I want to share the encoding logic between Web and server. Throwing TypeError feels confusing for me.

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Doesn't it look more like issue with Buffer.from()? new Uint8Array(ab) on detached buffer should throw but Uint8Array.from(ab) should return exactly what's expected in TextDecoder.decode().

@cola119 cola119 force-pushed the fix-type-error-of-detached-buffer branch from ad6a134 to 6639bec Compare July 30, 2022 04:08
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CI: https://ci.nodejs.org/job/node-test-pull-request/47523/

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aduh95 commented Oct 29, 2022

Error: Found 1 unexpected passes. Consider updating test/wpt/status/encoding.json for these files: streams/decode-utf8.any.js @cola119 could you take a look at this please?

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@cola119 cola119 force-pushed the fix-type-error-of-detached-buffer branch from 6639bec to 89329e6 Compare October 30, 2022 04:43
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cola119 commented Oct 30, 2022 •
edited

@aduh95 I updated the status accordingly. 89329e6 PTAL.
(encoding.json was updated in #44101 and at that time streams/decode-utf8.any.js was expected to fail. This PR fixes that issue and I needed to update the status.)

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CI: https://ci.nodejs.org/job/node-test-pull-request/47580/

@cola119 cola119 force-pushed the fix-type-error-of-detached-buffer branch 2 times, most recently from 684f18a to a154022 Compare October 30, 2022 23:38
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cola119 commented Oct 30, 2022

Rebased and squashed

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CI: https://ci.nodejs.org/job/node-test-pull-request/47585/

@cola119 cola119 removed the author ready PRs that have at least one approval, no pending requests for changes, and a CI started. label Oct 31, 2022
@cola119 cola119 force-pushed the fix-type-error-of-detached-buffer branch from a154022 to 2007eb5 Compare October 31, 2022 13:32
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cola119 commented Nov 1, 2022

@aduh95 PTAL 2007eb5

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@nodejs-github-bot nodejs-github-bot merged commit 86088ab into nodejs:main Nov 1, 2022
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Landed in 86088ab

lucshi pushed a commit to lucshi/node that referenced this pull request Nov 9, 2022
@cola119 @lucshi
lib: fix TypeError when converting a detached buffer source
a9c6442 
PR-URL: nodejs#44020
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
RafaelGSS pushed a commit that referenced this pull request Nov 10, 2022
@cola119 @RafaelGSS
lib: fix TypeError when converting a detached buffer source
d172669 
PR-URL: #44020
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
@RafaelGSS RafaelGSS mentioned this pull request Nov 10, 2022
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danielleadams pushed a commit that referenced this pull request Dec 30, 2022
@cola119 @danielleadams
lib: fix TypeError when converting a detached buffer source
031900d 
PR-URL: #44020
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
@danielleadams danielleadams mentioned this pull request Dec 30, 2022
Merged
danielleadams pushed a commit that referenced this pull request Dec 30, 2022
@cola119 @danielleadams
lib: fix TypeError when converting a detached buffer source
68690ef 
PR-URL: #44020
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
danielleadams pushed a commit that referenced this pull request Jan 3, 2023
@cola119 @danielleadams
lib: fix TypeError when converting a detached buffer source
57897f8 
PR-URL: #44020
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
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@jasnell jasnell jasnell approved these changes

@aduh95 aduh95 aduh95 approved these changes

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