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Bugfix: Dropped effects in Legacy Mode Suspense #18238

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merged 2 commits into from Mar 6, 2020

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@acdlite acdlite commented Mar 6, 2020

In legacy mode, a component that suspends bails out and commit in its previous state. If the component previously had mounted effects, we must transfer those to the work-in-progress so they don't get dropped.

Bug report: https://codesandbox.io/s/charming-almeida-k6tdv

@facebook-github-bot facebook-github-bot added CLA Signed React Core Team Opened by a member of the React Core Team labels Mar 6, 2020
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This pull request is automatically built and testable in CodeSandbox.

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In legacy mode, a component that suspends bails out and commit in
its previous state. If the component previously had mounted effects,
we must transfer those to the work-in-progress so they don't
get dropped.
@acdlite acdlite force-pushed the bugfix-legacy-suspense-effect branch from 4ddf4a5 to 3d0cfef Compare March 6, 2020 18:47
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sizebot commented Mar 6, 2020

Details of bundled changes.

Comparing: 115cd12...3d0cfef

react-noop-renderer

File Filesize Diff Gzip Diff Prev Size Current Size Prev Gzip Current Gzip ENV
react-noop-renderer-flight-client.production.min.js 0.0% -0.3% 513 B 513 B 379 B 378 B NODE_PROD
react-noop-renderer.development.js +2.4% +0.5% 29.28 KB 29.98 KB 5.76 KB 5.79 KB NODE_DEV
react-noop-renderer.production.min.js 🔺+2.7% 🔺+0.9% 12 KB 12.33 KB 3.57 KB 3.61 KB NODE_PROD
react-noop-renderer-server.development.js 0.0% -0.3% 1.59 KB 1.59 KB 749 B 747 B NODE_DEV
react-noop-renderer-server.production.min.js 0.0% -0.4% 840 B 840 B 472 B 470 B NODE_PROD
react-noop-renderer-flight-client.development.js 0.0% -0.3% 1.18 KB 1.18 KB 616 B 614 B NODE_DEV
react-noop-renderer-persistent.development.js +2.0% +0.2% 29.33 KB 29.92 KB 5.78 KB 5.79 KB NODE_DEV
react-noop-renderer-persistent.production.min.js 🔺+2.3% 🔺+0.6% 12.02 KB 12.3 KB 3.58 KB 3.6 KB NODE_PROD
react-noop-renderer-flight-server.development.js 0.0% -0.2% 1.73 KB 1.73 KB 803 B 801 B NODE_DEV
react-noop-renderer-flight-server.production.min.js 0.0% -0.4% 946 B 946 B 526 B 524 B NODE_PROD

Size changes (stable)

Generated by 🚫 dangerJS against 3d0cfef

@sizebot
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sizebot commented Mar 6, 2020

Details of bundled changes.

Comparing: 115cd12...3d0cfef

react-noop-renderer

File Filesize Diff Gzip Diff Prev Size Current Size Prev Gzip Current Gzip ENV
react-noop-renderer-flight-server.development.js 0.0% -0.2% 1.75 KB 1.75 KB 813 B 811 B NODE_DEV
react-noop-renderer-flight-server.production.min.js 0.0% -0.4% 959 B 959 B 536 B 534 B NODE_PROD
react-noop-renderer-server.development.js 0.0% -0.1% 1.61 KB 1.61 KB 757 B 756 B NODE_DEV
react-noop-renderer-server.production.min.js 0.0% -0.2% 853 B 853 B 480 B 479 B NODE_PROD
react-noop-renderer-persistent.development.js +2.0% +0.2% 29.34 KB 29.93 KB 5.78 KB 5.8 KB NODE_DEV
react-noop-renderer-persistent.production.min.js 🔺+2.3% 🔺+0.5% 12.04 KB 12.31 KB 3.59 KB 3.61 KB NODE_PROD
react-noop-renderer.development.js +2.4% +0.5% 29.3 KB 29.99 KB 5.77 KB 5.8 KB NODE_DEV
react-noop-renderer-flight-client.development.js 0.0% -0.3% 1.2 KB 1.2 KB 625 B 623 B NODE_DEV
react-noop-renderer.production.min.js 🔺+2.7% 🔺+0.9% 12.01 KB 12.34 KB 3.58 KB 3.61 KB NODE_PROD
react-noop-renderer-flight-client.production.min.js 0.0% -0.5% 526 B 526 B 388 B 386 B NODE_PROD

Size changes (experimental)

Generated by 🚫 dangerJS against 3d0cfef

@acdlite acdlite merged commit 235a6c4 into facebook:master Mar 6, 2020
acdlite added a commit to acdlite/react that referenced this pull request Mar 19, 2020
* Failing: Dropped effects in Legacy Mode Suspense

* Transfer mounted effects on suspend in legacy mode

In legacy mode, a component that suspends bails out and commit in
its previous state. If the component previously had mounted effects,
we must transfer those to the work-in-progress so they don't
get dropped.
@acdlite acdlite mentioned this pull request Mar 19, 2020
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