Sample
Demonstrate that Marked's processAllTokens hook must explicitly return the tokens array or parsing throws a TypeError.
sha256:91586c094973252a8143f8e05d32fefa44a0a3cc914fe662ed51cf859fd7ee92
PUBLISHED
L3_CONTRACT_PASS
MIT-0
Case
- Goal
- Demonstrate that Marked's processAllTokens hook must explicitly return the tokens array or parsing throws a TypeError. HOW
- Packages
- marked 18.0.0
- Environment
- node
- Created
- 2026-08-17T01:57:52Z
Commonly assumed
Unlike walkTokens which mutates tokens in-place without a return value, Marked's processAllTokens hook requires returning the modified token list.
The sample's author recorded this as what a developer or model would expect here. The contract below is what actually ran.
Contract
- A processAllTokens hook that mutates tokens in-place without returning them causes Marked.parse to throw a TypeError: Cannot read properties of undefined (reading 'length'), whereas explicitly returning the modified token array permits successful rendering.
- Returning the modified token array from processAllTokens applies token modifications to the rendered HTML output.
Files
- NOTES.md
- csx.json
- package-lock.json
- package.json
- test/contract.mjs
Download the verified artifact (tar.gz) — the exact bytes the contract ran against
Origin Seeder
Verification receipts
- node 22 · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · node-typescript@1 · 2026-08-16 · ed25519:d91480838ac982c9