Files
scriptc/internal/compatibility
Chris Tate 1cd06fda4c Read events.defaultMaxListeners from the ES module namespace copy
Reads of defaultMaxListeners through an ES module namespace import or a
named import answer the namespace's copy of the export, which keeps its
value from program start until module.syncBuiltinESMExports() refreshes it,
as in Node. The default import, the EventEmitter class and CommonJS module
bindings keep reading the current default. A destructured CommonJS binding
of defaultMaxListeners, which held a placeholder string in JavaScript
files, is refused.
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..
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Node compatibility ledger

This workspace package owns scriptc's Node.js parity system.

  • node-v24.json pins the Node release tag, commit, and canonical docs/source inputs.
  • static-support.json overlays dedicated compiler paths and their internal test evidence on the compiler's generated surface manifest.
  • generated/node-v24-internal.json is the engineering ledger, including implementation evidence and repository test paths.
  • generated/node-v24-backlog.json is the internal tier-specific work queue. It separates verification, implementation, explicit-refusal replacement, and partial-surface audit work, and prioritizes stable Node APIs above experimental, deprecated, and legacy APIs.
  • docs/src/generated/node-v24-compatibility.json is the stripped public artifact consumed by the docs website. It contains compiler-relevant runtime APIs, statuses, verification bases, and user-facing details; documentation, metadata, command-line/configuration entries, and rows that are N/A for native execution remain internal.

Statuses are evidence-aware: supported and partial require test evidence; refused requires an explicit compiler diagnostic or native throwing stub; not-implemented is the actionable backlog for an owned API family with no implementation match; by-design records an architectural exclusion; unreviewed still needs classification; and not-applicable is not a runtime API for that execution tier.

Run pnpm node-compat:backlog from the repository root for a summary. The filters --tier, --action, --priority, --chapter, and --status compose; use --format=json or --format=tsv for tooling.

Run pnpm node-compat from the repository root after changing the Node pin or the support manifest. pnpm node-compat:check is the offline drift/evidence gate; pnpm --filter @internal/compatibility check:upstream additionally verifies the pinned upstream inputs over the network.