Files
scriptc/tests/fixtures/node-types
Chris Tate 755b7d997b Read untyped listener arrays for tuple-less events, and route typed meta listeners beside checked-dynamic ones
- listeners() and rawListeners() in TypeScript of an event that no literal
  emit or listener gives a tuple (one registered only under computed names)
  read the untyped array, so each returned listener takes every argument a
  call passes. The array was checked into zero-argument functions, which
  called the listener without its arguments.
- A typed 'newListener' or 'removeListener' listener in a program with a
  checked-dynamic listener of the other meta event registers through the
  adapter. The meta lowering's check looked only at the listener's own
  event and refused it with SC2020.
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node-types fixture

A project whose node_modules contains @types/node — the adoption path for real-world Node/TypeScript projects. The vendored node_modules are COMMITTED TEST DATA, pinned so the type surface (and therefore the pinned diagnostics) never drifts with the registry:

  • @types/node 24.13.3
  • undici-types 7.18.2 (its dependency — declares the web-platform globals: fetch/Response/AbortSignal/ReadableStream/...)

What the fixture pins (see tests/harness/project-config.test.ts):

  • argv-env.ts — the SUPPORTED process surface (argv, env) typed by @types/node lowers statically and the binary runs: with @types/node present, the shipped fallback declarations for process/node:fs/ console stand down (their types come from @types/node), but the same members lower to the same libCalls, recognized by name + @types/node provenance.
  • fenced.ts — surface @types/node DECLARES but scriptc does not lower (process.uptime, Buffer.from, setInterval) reports the SC2020-family fence naming @types/node, instead of typechecking its way into a broken binary — and never a raw "Cannot find name" error.
  • event-loop-metrics.ts and timeout-type.ts — performance.eventLoopUtilization, monitorEventLoopDelay's IntervalHistogram and NodeJS.Timeout as declared types lower under @types/node exactly as under the fallback declarations.
  • source-import/ — an imported TypeScript source may use the RequestInfo global supplied by TypeScript's default DOM lib while scriptc adopts the project's @types/node declarations.

Projects WITHOUT @types/node (every other fixture and the whole corpus) keep the shipped fallback declarations and behave exactly as before.