Malte UblandClaude Opus 5.5 99ebf7501d Await a union whose promise arm settles a union ...

`Promise<A | B> | undefined` awaits as Awaited of the operand, which the
maybe-promise lowering already computes: it awaits the narrowed promise
arm and coerces its settled union, and the non-promise arms take JS's one
microtask hop. The await lowering refused any union inner instead, so the
promise-or-unit shape now goes through that same path; a union whose
promise arm has no combined result keeps the SC1090 fence.

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

2026-10-28 05:37:59 -07:00

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corpus

Await a union whose promise arm settles a union

2026-10-28 05:37:59 -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

Destructure union sources by narrowing first and joining arm reads

2026-10-28 05:37:58 -07:00

ffi

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fixtures

Merge main

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

harness

Await a union whose promise arm settles a union

2026-10-28 05:37:59 -07:00

library-mode

Add object literal members through the store caches in untyped code

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

node-parallel

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test262

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wasm-spec

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