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yoga-layout 3.2.1: Configure Yoga.Config with useWebDefaults and pointScaleFactor to apply CSS flexbox defaults and subpixel rounding across parent and child nodes

Verified sample for npm yoga-layout 3.2.1: Configure Yoga.Config with useWebDefaults and pointScaleFactor to apply CSS flexbox defaults and subpixel rounding…

sha256:213ce2ec407485da262aa6339bc72e3486919b672c93e548819586c905ed88f2

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Execution evidence

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Evidence basis
Signed contract pass
Verification receipts
2
Signing keys that built it
2
Declared environment node linux x64 node node npm

Verification-run environments

Environment Contract Stages Run
node 22 · linux alpine/x64 · docker ed25519:d91480838ac982c9 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1
2026-08-16
node 22 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1
2026-08-18

Case

HOW
Goal
Configure Yoga.Config with useWebDefaults and pointScaleFactor to apply CSS flexbox defaults and subpixel rounding across parent and child nodes
Packages
Symbols
  • Yoga.Config.create
  • Config.setUseWebDefaults
  • Config.setPointScaleFactor
  • Yoga.Node.create
  • Node.calculateLayout
  • Node.getComputedWidth
  • Node.getFlexShrink
  • Node.getFlexDirection
  • Node.insertChild
  • Node.freeRecursive
  • Config.free
Environment
node
Created
2026-08-16T07:08:30Z

Contract

  1. assert yoga-layout resolved version is 3.2.1
  2. assert default Config has useWebDefaults disabled (false) and default Node uses React Native defaults (flexDirection Column, flexShrink 0, alignContent FlexStart)
  3. assert Config with setUseWebDefaults(true) sets web defaults (flexDirection Row, flexShrink 1, alignContent Stretch)
  4. assert child Node does not inherit Config from parent upon insertion and retains flexShrink 0 unless created with the Config
  5. assert overflowing children in a fixed row fail to shrink under Yoga defaults (overflowing container to 300px width)
  6. assert overflowing children in a fixed row shrink to fit (100px each, 200px total) when created with useWebDefaults Config
  7. assert pointScaleFactor 1.0 rounds coordinates to integer pixel boundaries (10.6 to 11 and 10.4 to 10)
  8. assert pointScaleFactor 0.0 disables pixel snapping and preserves exact subpixel floating point values
  9. assert pointScaleFactor 2.0 snaps coordinates to half-pixel multiples (10.25 to 10.5 and 10.75 to 11.0)
  10. assert freeing root node with freeRecursive releases entire tree and Config.free releases config allocation

Files

  • NOTES.md
  • csx.json
  • package-lock.json
  • package.json
  • src/index.js
  • test/contract.mjs

Download the source artifact (tar.gz)

Origin Seeder

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