Changelog

microsoft/typescript-go · · 4 commits

Type checker fixes and import formatting polish

Organize imports now respects editor formatting, the checker keeps destructuring narrowing through re-entrant analysis, and link storage got a paging overhaul.

TorinAsakura ahejlsberg RyanCavanaugh Andarist

Organize imports now honors editor formatting (TorinAsakura4e25827)

The language service now preserves editor formatting preferences when running organize-imports/remove-unused, including tab size and spaces settings. That makes the action match the user’s configured indentation instead of reverting to defaults.

Paged link storage lands for checker internals (ahejlsbergf60e5fc)

The checker’s link storage was refactored to use a new paged representation for dense keys, with a fallback from array-backed pages to a map for higher indices. This is a substantial internal memory/layout change aimed at scaling link storage more efficiently.

Keep dependent destructuring narrowing during re-entrant checks (Andarist36d9c9b)

The checker now avoids a circularity case when narrowing destructured bindings inside the initializer’s own flow, while still allowing re-entrant narrowing in nested callbacks and binding defaults. This fixes real control-flow analysis regressions around dependent destructuring and assertion-heavy code.

Document skipLibCheck declaration-conflict fallout (RyanCavanaugh072f7f7)

The changelog now calls out that declaration conflicts in TypeScript 7 can surface more consistently across contributing sites, including non-.d.ts files that were previously hidden by --skipLibCheck. This is a user-facing clarification of an observable behavior change.

Other misc changes

  • Editor formatting preference parsing updated to map tabSize/insertSpaces onto format settings
  • Added/updated fourslash and user-preferences tests
  • Internal checker/link-store refactors supporting the paging change
  • CHANGES.md update