Malte UblandClaude Opus 5.5 bb33ec50fe Push localized failure down to the failing component of a declared type ...

Stage L3 of the localized-failure design.

A degraded type used to become the checked dynamic as a whole slot. Its
lenient mapping now keeps the compilable shape: the type maps again with
every nested component whose mapping fails as the checked dynamic, so a
record keeps its static members with one dynamic member, an array of
records keeps its records, and a Map, Promise or function keeps its static
parts. When even that shape does not map, or a unit still fails with it,
the type falls back to the whole-slot checked dynamic (one more round).
Lenient forms are IR types of one lowerer's shape tables, so the coverage
remainder re-derives them. A pushed-down type is one SC6104, at the slot
where it degraded, marked as keeping its shape.

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

2026-10-25 19:07:57 -07:00

..

ambient

util: runtime format strings, inspect.custom and colors, untyped promisify (#1911)

2026-10-25 17:46:31 -05:00

native

Have tsc-ts read its library files from disk when it can

2026-10-25 06:32:18 -05:00

shims

Address review feedback on request-body streaming

2026-10-23 05:22:01 -05:00

src

Push localized failure down to the failing component of a declared type

2026-10-25 19:07:57 -07:00

test

Record order-parity baselines for the stage L2 localized-failure corpus programs

2026-10-25 18:57:23 -07:00

LICENSE

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package.json

Prepare v0.4.5 release

2026-10-25 11:26:13 -05:00

surface-manifest.json

util: runtime format strings, inspect.custom and colors, untyped promisify (#1911)

2026-10-25 17:46:31 -05:00

tsconfig.json

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