CodeSampleX

Sample

decode WebAssembly binary into AST using wasm-parser decode

sha256:b20aa13e6c74a343702fd30c828b73da3203bc690988436cdd198a45a4b28d21

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 node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10

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…
2026-08-27

Case

HOW
Goal
decode WebAssembly binary into AST using wasm-parser decode
Packages
Symbols
  • decode
Environment
node 22.23.2
Created
2026-08-27T23:36:01Z

Contract

  1. decode parses minimal WebAssembly binary into Program AST with empty Module
  2. decode parses WebAssembly module containing type, func, export, and code sections
  3. decode parses instruction details such as i32.const with NumberLiteral argument
  4. decode respects ignoreCodeSection option to skip parsing function body instructions
  5. decode throws unexpected end error when binary buffer is truncated
  6. decode throws magic header not detected error when wasm magic bytes are invalid
  7. parseWasmBinary helper decodes Uint8Array and Buffer inputs into AST

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous