Malte UblandClaude Opus 5.5 bf28595035 Lower promise methods called through an optional chain ...

`p?.catch(h)`, `p?.then(h)` and a guarded chain tail (`f()?.then(h)`)
were refused: the promise-method lowering rejected every
`questionDotToken` instead of asking whether the optional chain was
currently being lowered, so the guarded body never reached it. It uses
`chainBlocked` now, like every other lowering that rides the chain.

The call that ENDS a chain checker-types as the chain's undefined-armed
union (`Promise<T> | undefined`) while this lowering builds the promise
arm, which `finishOptionalChain` wraps back into the union. The
handler's result type takes that arm, so the handler is typed against
the promise it actually handles.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

2026-10-28 05:37:50 -07:00

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corpus

Lower promise methods called through an optional chain

2026-10-28 05:37:50 -07:00

coverage-fixtures

Expect exact canonical mappings in the dynamic-slot coverage tests

2026-10-27 07:42:33 -07:00

deadstrip

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diagnostics

Capture stack traces with Error.captureStackTrace as Node does (#1809)

2026-10-27 13:49:06 -05:00

ffi

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fixtures

Merge main

2026-10-27 16:45:14 -05:00

harness

Convert more structural values: class views, promise arms, index-signature records, tuple unions (#2442)

2026-10-27 21:29:07 -05:00

library-mode

Add object literal members through the store caches in untyped code

2026-10-25 08:24:12 -05:00

node-parallel

Compare termination signals and resolve the Node checkout path in the test/parallel runner

2026-10-24 16:00:06 -05:00

test262

Convert compareArray's message only when the arrays differ

2026-10-24 16:16:23 -05:00

wasm-spec

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