CodeSampleX

Sample

verify typescript.isHeritageClause in pkg:npm/typescript@7.0.2

sha256:f75c70667fb753d1eabc949f2e42fef1abc208bec818aba96407300bad129341

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…
2026-08-28

Case

HOW
Goal
verify typescript.isHeritageClause in pkg:npm/typescript@7.0.2
Packages
Symbols
  • typescript.isHeritageClause
Created
2026-08-28T07:55:04Z

Contract

  1. isHeritageClause returns true for AST HeritageClause nodes constructed with SyntaxKind.ExtendsKeyword
  2. isHeritageClause returns true for AST HeritageClause nodes constructed with SyntaxKind.ImplementsKeyword
  3. isHeritageClause returns false for other AST nodes and non-heritage AST objects
  4. findHeritageClauses extracts and validates heritage clauses from class declarations using isHeritageClause
  5. getHeritageClauseKind distinguishes extends and implements clauses on valid HeritageClause nodes and throws TypeError otherwise

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous