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To avoid a function call `BufferList.prototype.concat()` is not called when there is only a buffer in the list. That buffer is instead accessed directly.
The `n` argument of `BufferList.prototype.concat()` is not the number of `Buffer` instances in the list, but their total length when concatenated.
lpinca
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stream
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It's better to modify |
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ok. I agree. |
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/cc @nodejs/streams |
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I'm not super comfortable with this change. |
Do you mean if |
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Can you restore the test then? |
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| const copy = list.concat(3); | ||
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| assert.strictEqual(list.concat(1), 'foo'); |
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@mcollina this is wrong whether or not the change in BufferList.js is applied.
- The test uses a string, probably for simplicity, but
concat()only works with buffers. - The
nargument (1) was wrong and irrelevant. You could have used any argument and the test would have still passed.
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FWIW the fixed test actually tests the impossible case where |
To avoid a function call `BufferList.prototype.concat()` is not called when there is only a buffer in the list. That buffer is instead accessed directly. PR-URL: #18239 Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
The `n` argument of `BufferList.prototype.concat()` is not the number of `Buffer` instances in the list, but their total length when concatenated. PR-URL: #18239 Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
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Landed in e65a6e8...2313424. |
To avoid a function call `BufferList.prototype.concat()` is not called when there is only a buffer in the list. That buffer is instead accessed directly. PR-URL: #18239 Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
The `n` argument of `BufferList.prototype.concat()` is not the number of `Buffer` instances in the list, but their total length when concatenated. PR-URL: #18239 Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
5 participants
First commit remove some unreachable code.
BufferList.prototype.concat()is not called when there is only a buffer in the list.Second commit fixes a test.
Checklist
make -j4 test(UNIX), orvcbuild test(Windows) passesAffected core subsystem(s)
stream, test