Sample
transformFromAst takes code as its second argument and options as its third argument, silently ignoring options passed in the second parameter position
sha256:5a316c32dc170118336f2f2ca46d7f21598cc4b200f0ad73074d6f2cd4b2bf89
PUBLISHED
L3_CONTRACT_PASS
MIT-0
Execution evidence
Declared environment and signed verification runs are separated so you can see exactly what this sample proves.
Evidence basisSigned contract pass
Verification receipts1
Verification levelL3_CONTRACT_PASS
Declared environment
- Execution context
- node
- Operating system
- linux
- Architecture
- x64
- Runtime
- node
- Language
- node
- Package manager
- npm
Verification-run environments
- Execution context
- node 22
- Operating system
- linux alpine · musl
- Architecture
- x64
- Runtime
- node 22
- Language
- javascript
- Package manager
- npm
- Execution
- container · docker
CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · node-typescript@1 · 2026-08-18
Case
- Goal
- transformFromAst takes code as its second argument and options as its third argument, silently ignoring options passed in the second parameter position HOW
- Packages
-
@babel/core 7.22.5
- Environment
- node
- Created
- 2026-08-18T00:40:05Z
Commonly assumed
transformFromAst accepts options as its second parameter in transformFromAst(ast, options) like transform(code, options), applying plugins directly
The sample's author recorded this as what a developer or model would expect here. The contract below is what actually ran.
Contract
- transformFromAst(ast, options) treats the options object as the raw code string and leaves options undefined, generating code without applying plugins
- transformFromAst(ast, undefined, options) passes options in the third position and correctly applies plugin transformations synchronously
- transformFromAst with an errback callback executes asynchronously and returns undefined synchronously
- transformFromAst leaves the input AST unmodified by default because cloneInputAst defaults to true
- transformFromAst mutates the input AST in-place when cloneInputAst is set to false
- transformFromAst throws an error if the root node is not a Program or File node
Files
- NOTES.md
- csx.json
- package-lock.json
- package.json
- test/contract.mjs
Download the source artifact (tar.gz)
Origin Seeder
csx-seed
Verification receipts
- node 22 · linux alpine/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · node-typescript@1 · 2026-08-18 · ed25519:d91480838ac982c9