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[Flight] Serialize deduped elements by direct reference even if they suspend #28283

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merged 1 commit into from
Feb 8, 2024

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@sebmarkbage sebmarkbage commented Feb 8, 2024

In #28123 I switched these to be lazy references. However that creates a lazy wrapper even if they're synchronously available. We try to as much as possible preserve the original data structure in these cases.

E.g. here in the dev outlining I only use a lazy wrapper if it didn't complete synchronously: https://github.com/facebook/react/pull/28272/files#diff-d4c9c509922b3671d3ecce4e051df66dd5c3d38ff913c7a7fe94abc3ba2ed72eR638

Unfortunately we don't have a data structure that tracks the status of each emitted row. We could store the task in the map but then they couldn't be GC:ed as they complete. We could maybe store the status of each element but seems so heavy.

For now I just went back to direct reference which might be an issue since it can suspend something higher up when deduped.

@facebook-github-bot facebook-github-bot added CLA Signed React Core Team Opened by a member of the React Core Team labels Feb 8, 2024
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Comparing: d3def47...631bb04

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.min.js = 176.64 kB 176.64 kB = 55.02 kB 55.02 kB
oss-experimental/react-dom/cjs/react-dom.production.min.js = 178.63 kB 178.63 kB = 55.59 kB 55.59 kB
facebook-www/ReactDOM-prod.classic.js = 591.73 kB 591.73 kB = 104.44 kB 104.44 kB
facebook-www/ReactDOM-prod.modern.js = 575.51 kB 575.51 kB = 101.53 kB 101.53 kB
test_utils/ReactAllWarnings.js Deleted 67.02 kB 0.00 kB Deleted 16.42 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
oss-stable-semver/react-server/cjs/react-server-flight.production.js +0.68% 56.77 kB 57.15 kB +0.94% 13.89 kB 14.02 kB
oss-stable/react-server/cjs/react-server-flight.production.js +0.68% 56.77 kB 57.15 kB +0.94% 13.89 kB 14.02 kB
oss-experimental/react-server/cjs/react-server-flight.production.js +0.58% 66.44 kB 66.83 kB +0.69% 15.88 kB 15.99 kB
oss-stable-semver/react-server/cjs/react-server-flight.development.js +0.58% 66.51 kB 66.90 kB +0.68% 16.20 kB 16.31 kB
oss-stable/react-server/cjs/react-server-flight.development.js +0.58% 66.51 kB 66.90 kB +0.68% 16.20 kB 16.31 kB
oss-experimental/react-server/cjs/react-server-flight.development.js +0.50% 76.21 kB 76.60 kB +0.63% 18.18 kB 18.29 kB
facebook-www/ReactFlightDOMServer-dev.modern.js +0.46% 84.42 kB 84.81 kB +0.64% 18.25 kB 18.36 kB
oss-stable-semver/react-server-dom-esm/cjs/react-server-dom-esm-server.node.production.js +0.43% 90.17 kB 90.56 kB +0.43% 21.45 kB 21.54 kB
oss-stable/react-server-dom-esm/cjs/react-server-dom-esm-server.node.production.js +0.43% 90.17 kB 90.56 kB +0.43% 21.45 kB 21.54 kB
oss-stable-semver/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.browser.production.js +0.42% 92.24 kB 92.62 kB +0.55% 22.24 kB 22.37 kB
oss-stable/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.browser.production.js +0.42% 92.24 kB 92.62 kB +0.55% 22.24 kB 22.37 kB
oss-stable-semver/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.edge.production.js +0.41% 92.90 kB 93.28 kB +0.41% 22.48 kB 22.57 kB
oss-stable/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.edge.production.js +0.41% 92.90 kB 93.28 kB +0.41% 22.48 kB 22.57 kB
oss-stable-semver/react-server-dom-webpack/cjs/react-server-dom-webpack-server.browser.production.js +0.40% 94.82 kB 95.21 kB +0.55% 22.97 kB 23.09 kB
oss-stable/react-server-dom-webpack/cjs/react-server-dom-webpack-server.browser.production.js +0.40% 94.82 kB 95.21 kB +0.55% 22.97 kB 23.09 kB
oss-stable-semver/react-server-dom-webpack/cjs/react-server-dom-webpack-server.edge.production.js +0.40% 94.96 kB 95.34 kB +0.39% 23.04 kB 23.13 kB
oss-stable/react-server-dom-webpack/cjs/react-server-dom-webpack-server.edge.production.js +0.40% 94.96 kB 95.34 kB +0.39% 23.04 kB 23.13 kB
oss-stable-semver/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.node.unbundled.production.js +0.40% 95.57 kB 95.96 kB +0.40% 22.67 kB 22.76 kB
oss-stable/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.node.unbundled.production.js +0.40% 95.57 kB 95.96 kB +0.40% 22.67 kB 22.76 kB
oss-stable-semver/react-server-dom-webpack/cjs/react-server-dom-webpack-server.node.unbundled.production.js +0.39% 97.99 kB 98.37 kB +0.40% 23.28 kB 23.37 kB
oss-stable/react-server-dom-webpack/cjs/react-server-dom-webpack-server.node.unbundled.production.js +0.39% 97.99 kB 98.37 kB +0.40% 23.28 kB 23.37 kB
oss-stable-semver/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.node.production.js +0.39% 98.24 kB 98.62 kB +0.39% 23.50 kB 23.60 kB
oss-stable/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.node.production.js +0.39% 98.24 kB 98.62 kB +0.39% 23.50 kB 23.60 kB
oss-experimental/react-server-dom-esm/cjs/react-server-dom-esm-server.node.production.js +0.38% 100.08 kB 100.46 kB +0.39% 23.50 kB 23.59 kB
oss-stable-semver/react-server-dom-webpack/cjs/react-server-dom-webpack-server.node.production.js +0.38% 100.65 kB 101.03 kB +0.37% 24.17 kB 24.26 kB
oss-stable/react-server-dom-webpack/cjs/react-server-dom-webpack-server.node.production.js +0.38% 100.65 kB 101.03 kB +0.37% 24.17 kB 24.26 kB
oss-stable-semver/react-server-dom-esm/cjs/react-server-dom-esm-server.node.development.js +0.38% 100.68 kB 101.06 kB +0.40% 23.99 kB 24.09 kB
oss-stable/react-server-dom-esm/cjs/react-server-dom-esm-server.node.development.js +0.38% 100.68 kB 101.06 kB +0.40% 23.99 kB 24.09 kB
oss-experimental/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.browser.production.js +0.37% 102.59 kB 102.97 kB +0.39% 24.49 kB 24.58 kB
oss-stable-semver/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.browser.development.js +0.37% 102.95 kB 103.34 kB +0.40% 24.83 kB 24.93 kB
oss-stable/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.browser.development.js +0.37% 102.95 kB 103.34 kB +0.40% 24.83 kB 24.93 kB
oss-experimental/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.edge.production.js +0.37% 103.25 kB 103.63 kB +0.39% 24.70 kB 24.79 kB
oss-stable-semver/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.edge.development.js +0.37% 103.66 kB 104.04 kB +0.38% 25.02 kB 25.12 kB
oss-stable/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.edge.development.js +0.37% 103.66 kB 104.04 kB +0.38% 25.02 kB 25.12 kB
oss-experimental/react-server-dom-webpack/cjs/react-server-dom-webpack-server.browser.production.js +0.37% 105.17 kB 105.56 kB +0.38% 25.22 kB 25.32 kB
oss-experimental/react-server-dom-webpack/cjs/react-server-dom-webpack-server.edge.production.js +0.36% 105.31 kB 105.69 kB +0.38% 25.26 kB 25.36 kB
oss-experimental/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.node.unbundled.production.js +0.36% 105.48 kB 105.86 kB +0.38% 24.71 kB 24.81 kB
oss-stable-semver/react-server-dom-webpack/cjs/react-server-dom-webpack-server.browser.development.js +0.36% 105.54 kB 105.92 kB +0.37% 25.55 kB 25.64 kB
oss-stable/react-server-dom-webpack/cjs/react-server-dom-webpack-server.browser.development.js +0.36% 105.54 kB 105.92 kB +0.37% 25.55 kB 25.64 kB
oss-stable-semver/react-server-dom-webpack/cjs/react-server-dom-webpack-server.edge.development.js +0.36% 105.72 kB 106.11 kB +0.36% 25.58 kB 25.67 kB
oss-stable/react-server-dom-webpack/cjs/react-server-dom-webpack-server.edge.development.js +0.36% 105.72 kB 106.11 kB +0.36% 25.58 kB 25.67 kB
oss-stable-semver/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.node.unbundled.development.js +0.36% 106.09 kB 106.48 kB +0.39% 25.20 kB 25.30 kB
oss-stable/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.node.unbundled.development.js +0.36% 106.09 kB 106.48 kB +0.39% 25.20 kB 25.30 kB
oss-stable-semver/react-server-dom-turbopack/umd/react-server-dom-turbopack-server.browser.development.js +0.36% 108.73 kB 109.12 kB +0.39% 25.12 kB 25.22 kB
oss-stable/react-server-dom-turbopack/umd/react-server-dom-turbopack-server.browser.development.js +0.36% 108.73 kB 109.12 kB +0.39% 25.12 kB 25.22 kB
oss-experimental/react-server-dom-webpack/cjs/react-server-dom-webpack-server.node.unbundled.production.js +0.36% 107.89 kB 108.27 kB +0.38% 25.32 kB 25.42 kB
oss-experimental/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.node.production.js +0.36% 108.14 kB 108.52 kB +0.39% 25.54 kB 25.64 kB
oss-stable-semver/react-server-dom-webpack/cjs/react-server-dom-webpack-server.node.unbundled.development.js +0.35% 108.52 kB 108.90 kB +0.37% 25.81 kB 25.91 kB
oss-stable/react-server-dom-webpack/cjs/react-server-dom-webpack-server.node.unbundled.development.js +0.35% 108.52 kB 108.90 kB +0.37% 25.81 kB 25.91 kB
oss-stable-semver/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.node.development.js +0.35% 108.73 kB 109.12 kB +0.36% 26.03 kB 26.12 kB
oss-stable/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.node.development.js +0.35% 108.73 kB 109.12 kB +0.36% 26.03 kB 26.12 kB
oss-stable-semver/react-server-dom-webpack/umd/react-server-dom-webpack-server.browser.development.js +0.35% 111.45 kB 111.84 kB +0.38% 25.86 kB 25.95 kB
oss-stable/react-server-dom-webpack/umd/react-server-dom-webpack-server.browser.development.js +0.35% 111.45 kB 111.84 kB +0.38% 25.86 kB 25.95 kB
oss-experimental/react-server-dom-webpack/cjs/react-server-dom-webpack-server.node.production.js +0.35% 110.55 kB 110.93 kB +0.37% 26.22 kB 26.32 kB
oss-stable-semver/react-server-dom-webpack/cjs/react-server-dom-webpack-server.node.development.js +0.35% 111.15 kB 111.54 kB +0.37% 26.68 kB 26.78 kB
oss-stable/react-server-dom-webpack/cjs/react-server-dom-webpack-server.node.development.js +0.35% 111.15 kB 111.54 kB +0.37% 26.68 kB 26.78 kB
oss-experimental/react-server-dom-esm/cjs/react-server-dom-esm-server.node.development.js +0.35% 111.26 kB 111.64 kB +0.38% 26.28 kB 26.38 kB
oss-experimental/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.browser.development.js +0.34% 113.33 kB 113.72 kB +0.37% 27.06 kB 27.16 kB
oss-experimental/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.edge.development.js +0.33% 114.71 kB 115.09 kB +0.37% 27.49 kB 27.59 kB
oss-experimental/react-server-dom-webpack/cjs/react-server-dom-webpack-server.browser.development.js +0.33% 115.91 kB 116.30 kB +0.36% 27.79 kB 27.89 kB
oss-experimental/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.node.unbundled.development.js +0.33% 116.67 kB 117.05 kB +0.37% 27.49 kB 27.59 kB
oss-experimental/react-server-dom-webpack/cjs/react-server-dom-webpack-server.edge.development.js +0.33% 116.77 kB 117.16 kB +0.36% 28.05 kB 28.15 kB
oss-experimental/react-server-dom-turbopack/umd/react-server-dom-turbopack-server.browser.development.js +0.33% 119.56 kB 119.95 kB +0.39% 27.42 kB 27.53 kB
oss-experimental/react-server-dom-webpack/cjs/react-server-dom-webpack-server.node.unbundled.development.js +0.32% 119.09 kB 119.48 kB +0.37% 28.11 kB 28.21 kB
oss-experimental/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.node.development.js +0.32% 119.31 kB 119.69 kB +0.35% 28.32 kB 28.42 kB
oss-experimental/react-server-dom-webpack/umd/react-server-dom-webpack-server.browser.development.js +0.32% 122.29 kB 122.68 kB +0.38% 28.14 kB 28.25 kB
oss-experimental/react-server-dom-webpack/cjs/react-server-dom-webpack-server.node.development.js +0.32% 121.73 kB 122.11 kB +0.36% 28.99 kB 29.10 kB
test_utils/ReactAllWarnings.js Deleted 67.02 kB 0.00 kB Deleted 16.42 kB 0.00 kB

Generated by 🚫 dangerJS against 631bb04

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I'm wondering if this will reintroduce the other bug that was fixed when you introduced key support. We got into a weird state where the root chunk never resolved to a value and always fullfilled with null. Maybe the other change where the model root condition is checked first is what resolved that though

@sebmarkbage
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Yes. Either the lazy or the modelRoot thing should fix that issue so we have at least the other fix.

@sebmarkbage sebmarkbage merged commit ba5e6a8 into facebook:main Feb 8, 2024
36 checks passed
github-actions bot pushed a commit that referenced this pull request Feb 8, 2024
…suspend (#28283)

In #28123 I switched these to be lazy references. However that creates a
lazy wrapper even if they're synchronously available. We try to as much
as possible preserve the original data structure in these cases.

E.g. here in the dev outlining I only use a lazy wrapper if it didn't
complete synchronously:
https://github.com/facebook/react/pull/28272/files#diff-d4c9c509922b3671d3ecce4e051df66dd5c3d38ff913c7a7fe94abc3ba2ed72eR638

Unfortunately we don't have a data structure that tracks the status of
each emitted row. We could store the task in the map but then they
couldn't be GC:ed as they complete. We could maybe store the status of
each element but seems so heavy.

For now I just went back to direct reference which might be an issue
since it can suspend something higher up when deduped.

DiffTrain build for [ba5e6a8](ba5e6a8)
unstubbable added a commit to unstubbable/react that referenced this pull request Mar 21, 2024
EdisonVan pushed a commit to EdisonVan/react that referenced this pull request Apr 15, 2024
…suspend (facebook#28283)

In facebook#28123 I switched these to be lazy references. However that creates a
lazy wrapper even if they're synchronously available. We try to as much
as possible preserve the original data structure in these cases.

E.g. here in the dev outlining I only use a lazy wrapper if it didn't
complete synchronously:
https://github.com/facebook/react/pull/28272/files#diff-d4c9c509922b3671d3ecce4e051df66dd5c3d38ff913c7a7fe94abc3ba2ed72eR638

Unfortunately we don't have a data structure that tracks the status of
each emitted row. We could store the task in the map but then they
couldn't be GC:ed as they complete. We could maybe store the status of
each element but seems so heavy.

For now I just went back to direct reference which might be an issue
since it can suspend something higher up when deduped.
bigfootjon pushed a commit that referenced this pull request Apr 18, 2024
…suspend (#28283)

In #28123 I switched these to be lazy references. However that creates a
lazy wrapper even if they're synchronously available. We try to as much
as possible preserve the original data structure in these cases.

E.g. here in the dev outlining I only use a lazy wrapper if it didn't
complete synchronously:
https://github.com/facebook/react/pull/28272/files#diff-d4c9c509922b3671d3ecce4e051df66dd5c3d38ff913c7a7fe94abc3ba2ed72eR638

Unfortunately we don't have a data structure that tracks the status of
each emitted row. We could store the task in the map but then they
couldn't be GC:ed as they complete. We could maybe store the status of
each element but seems so heavy.

For now I just went back to direct reference which might be an issue
since it can suspend something higher up when deduped.

DiffTrain build for commit ba5e6a8.
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