CodeSampleX

Sample

parse ECMAScript code and extract AST with tokens, comments, and location info

sha256:c8bceaf2698705f4837a0141fa98b53852a271866de01a6b2e81d63f7dcf75e5

This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people. MIT-0

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
1
Signing keys that built it
1
Declared environment linux 24 · ubuntu · glibc 2.39 x64 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@1node:22-alpine@sha256:c610fcdfb1d5…
2026-08-23

Case

HOW
Goal
parse ECMAScript code and extract AST with tokens, comments, and location info
Packages
Symbols
  • esprima.parseModule
  • esprima.parseScript
  • esprima.tokenize
Created
2026-08-23T15:39:36Z

Contract

  1. esprima.parseScript parses ECMAScript code into an Abstract Syntax Tree (AST) with Program root and script sourceType
  2. esprima.parseScript with loc and range options attaches line/column location coordinates and index range spans to AST nodes
  3. esprima.parseScript with tokens and comment options collects lexical tokens and comments on the returned AST
  4. esprima.parseModule parses ECMAScript modules with top-level import and export declarations
  5. esprima.tokenize breaks source code into a sequence of lexical tokens with token types and values
  6. esprima.parseScript throws a SyntaxError on invalid JavaScript syntax

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous