CodeSampleX

Sample

verify @babel/core.transformSync in pkg:npm/%40babel/core@7.24.0

sha256:60e158c8a5d3d3e2a1866ecd438d766b2dea265e6176348d0ee5ab988bb85dc5

Publication state. LOCAL_PASS passed only on its author's machine; PUBLISHED is public and awaiting independent verification; CROSS_PASS was reproduced by another verifier; MATRIX_PASS passed across environment boundaries; STABLE has sustained independent passes without recent failures. Evidence strength. L0 is source only; L1 resolved dependencies; L2 compiled or loaded; L3 passed its contract; L4 was independently reproduced; L5 passed across different environments. MIT-0

Execution evidence

Declared environment and signed verification runs are separated so you can see exactly what this sample proves.

Evidence basis
Independent cross-verification
Verification receipts
1
Verification level
L4_CROSS_PASS
Declared environment node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm

Verification-run environments

Environment Contract Stages Run
node 22 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1
2026-08-20

Case

HOW
Goal
verify @babel/core.transformSync in pkg:npm/%40babel/core@7.24.0
Packages
Symbols
  • @babel/core.transformSync
Environment
node 22.23.2
Created
2026-08-20T18:04:39Z

Contract

  1. transformSync synchronously transforms JavaScript code and returns an object with generated code string
  2. transformSync applies custom plugin visitors synchronously to modify AST identifiers
  3. transformSync generates source maps when sourceMaps option is enabled
  4. transformSync returns null when filename matches ignore pattern
  5. transformSync returns AST node when ast option is set to true
  6. transformSync throws a SyntaxError with BABEL_PARSE_ERROR code when given invalid JavaScript syntax

Files

  • csx.json
  • package-lock.json
  • package.json
  • spec.json
  • src/index.js
  • test/contract.js

Download the source artifact (tar.gz)

Origin Seeder

anonymous