API surface grows with type helpers and config references (
351840b)
The native-preview API now exposes CheckFlags and adds convenience methods for fetching properties, signatures, index infos, and type parameters without re-implementing the protocol plumbing. It also caches more consistently, which should reduce repeated lookups and make the API more ergonomic for clients.
Inference now orders candidates by type depth more safely (
90b40e8)
Inference was reworked to sort matching types by depth instead of tracking per-candidate depth state, simplifying the algorithm and changing how candidates are accumulated. This should improve correctness in nested generic inference and avoid the previous depth bookkeeping pitfalls.
Union construction is optimized for large type sets (ee860ff)
Union building was refactored to collect, sort, and deduplicate types more efficiently, rather than inserting incrementally. The change should reduce overhead in hot checker paths while preserving union semantics.
Crash fix for JS type aliases during CJS declaration emit (01cbcdd)
hasTypeAnnotation now excludes type alias declarations, including JSTypeAliasDeclaration, so they won't be misidentified as value annotations. This fixes a crash during CommonJS declaration emit when JS typedefs merge with module export properties.
JSX importSource resolution now works in checked JavaScript (42bb833)
The compiler now treats checked JavaScript files like JSX files when deciding whether to inject the JSX runtime import. That unblocks jsxImportSource-based JSX in // @checkJs projects.
Control-flow constructor matching catches more valid accesses (dc8e6a8)
Constructor-reference matching now recognizes both property access and string-literal element access for .constructor. This tightens control-flow narrowing and fixes an over-eager mismatch in circularity-related analysis.
Semantic tokens use canonical library paths (
cc49daf)
Default-library detection for semantic tokens now uses canonical source-file paths instead of raw filenames. That fixes missed defaultLibrary modifiers on case-insensitive filesystems.
Native-preview config parsing now includes project references (
e583b96)
Parsed config responses now surface projectReferences, including normalized and original paths plus circularity markers. The async and sync API tests were updated to assert the new data comes through correctly.
Other misc changes
- Native-preview enum generation updated to include
CheckFlags. - Native-preview API/proto plumbing expanded for the new config fields and exports.
- Native-preview tests added for the new config parsing behavior.
- Symlink handling for native-preview tsdk resolution improved in extension utilities.