CodeSampleX

Sample

yoga-layout 3.2.1: Calculate flexbox layout with yoga-layout: calculateLayout mutates in-place returning undefined rather than a layout object, defaults to column flex-direction, and requires getComputedLayout to inspect geometry

Verified sample for npm yoga-layout 3.2.1: Calculate flexbox layout with yoga-layout: calculateLayout mutates in-place returning undefined rather than a…

sha256:9647b59c7e38b051d7510c3ce77c06d32c6e10bcf281d65b297114437587eb70

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Execution evidence

The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.

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
Calculate flexbox layout with yoga-layout: calculateLayout mutates in-place returning undefined rather than a layout object, defaults to column flex-direction, and requires getComputedLayout to inspect geometry
Packages
Symbols
  • yoga-layout.Node.create
  • yoga-layout.Node.prototype.calculateLayout
  • yoga-layout.Node.prototype.getComputedLayout
  • yoga-layout.Node.prototype.getComputedWidth
  • yoga-layout.Node.prototype.getComputedHeight
  • yoga-layout.Node.prototype.getComputedLeft
  • yoga-layout.Node.prototype.getComputedTop
  • yoga-layout.Node.prototype.getWidth
  • yoga-layout.Node.prototype.setFlexDirection
  • yoga-layout.Node.prototype.insertChild
  • yoga-layout.Node.prototype.freeRecursive
Environment
node
Created
2026-08-16T07:08:28Z

Contract

  1. calculateLayout() returns undefined (mutates in-place, does not return layout object)
  2. getComputedLayout() returns { left, right, top, bottom, width, height } object
  3. getComputedWidth() and getComputedHeight() return resolved pixel numbers
  4. getWidth() returns Value object with { value, unit } rather than raw number
  5. default FlexDirection is Column (0) stacking children vertically unless Row is explicitly set
  6. insertChild(child, index) places child at specified index
  7. freeRecursive() frees WebAssembly memory for root and all descendants

Files

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

Download the source artifact (tar.gz)

Origin Seeder

csx-seed