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Fix nodeName comparison in insertStylesheetIntoRoot

Open sweetliquid opened this issue 1 year ago • 6 comments

Summary

image

The condition node.nodeName === 'link' is always false, because node.nodeName is Uppercase in specification. And the condition node.nodeName === 'LINK' is unnecessary, because Fizz hoists tags when it's media attribute is "not all", whether it is a link or a style (line 36):

https://github.com/facebook/react/blob/18cbcbf783377c5a22277a63ae41af54504502e0/packages/react-dom-bindings/src/server/fizz-instruction-set/ReactDOMFizzInstructionSetExternalRuntime.js#L30-L44

https://github.com/facebook/react/blob/18cbcbf783377c5a22277a63ae41af54504502e0/packages/react-dom-bindings/src/server/fizz-instruction-set/ReactDOMFizzInstructionSetInlineSource.js#L30-L44

sweetliquid avatar Feb 06 '24 09:02 sweetliquid

Hi @sweetliquid!

Thank you for your pull request and welcome to our community.

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facebook-github-bot avatar Feb 06 '24 09:02 facebook-github-bot

Comparing: 703983426243422d9726ca3a0c7eef54e173a6bb...8b3cf21547f953cf063898646331ae9cdd9d7429

Critical size changes

Includes critical production bundles, as well as any change greater than 2%:

Name +/- Base Current +/- gzip Base gzip Current gzip
oss-stable/react-dom/cjs/react-dom.production.js = 6.66 kB 6.66 kB = 1.82 kB 1.82 kB
oss-stable/react-dom/cjs/react-dom-client.production.js = 494.06 kB 494.06 kB = 88.22 kB 88.22 kB
oss-experimental/react-dom/cjs/react-dom.production.js = 6.67 kB 6.67 kB = 1.83 kB 1.83 kB
oss-experimental/react-dom/cjs/react-dom-client.production.js = 498.86 kB 498.86 kB = 88.93 kB 88.93 kB
facebook-www/ReactDOM-prod.classic.js = 591.22 kB 591.22 kB = 103.96 kB 103.96 kB
facebook-www/ReactDOM-prod.modern.js = 567.44 kB 567.44 kB = 100.36 kB 100.36 kB
test_utils/ReactAllWarnings.js Deleted 64.26 kB 0.00 kB Deleted 16.02 kB 0.00 kB

Significant size changes

Includes any change greater than 0.2%:

Expand to show
Name +/- Base Current +/- gzip Base gzip Current gzip
test_utils/ReactAllWarnings.js Deleted 64.26 kB 0.00 kB Deleted 16.02 kB 0.00 kB

Generated by :no_entry_sign: dangerJS against 8b3cf21547f953cf063898646331ae9cdd9d7429

react-sizebot avatar Feb 06 '24 09:02 react-sizebot

If there are any problems, please guide me. Thanks!

sweetliquid avatar Feb 06 '24 09:02 sweetliquid

@gnoff seems legit, and if not could we add a test that would fail this?

rickhanlonii avatar Feb 11 '24 19:02 rickhanlonii

@sweetliquid the nodeName check is a shortcut to avoid the attribute lookup on link tags since it will likely be slower than just reading the node name. You're right thought that this is currently non-functional. But let's just fix it to uppercase so we can avoid the attr read for the majority of tags we process this way

gnoff avatar May 02 '24 20:05 gnoff

@gnoff I've added back the nodeName check and fix it to uppercase, thanks for your explanation~

sweetliquid avatar May 07 '24 14:05 sweetliquid