tsz-core 0.1.8

Core TypeScript compiler and type checker library
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# Project Zang

Project Zang is a performance-first TypeScript compiler in Rust.<sup>[1](#footnote-1)</sup>
The goal is a correct, fast, drop-in replacement for `tsc`, with both native and WASM targets.

TypeScript is intentionally unsound. Zang keeps a sound core solver and layers a compatibility
engine on top to match TypeScript behavior while preserving correctness where possible.

## Progress

> [!WARNING]
> This project is not ready for general use yet.

<!-- TS_VERSION_START -->
Currently targeting `TypeScript`@`6.0.0-dev.20260215`
<!-- TS_VERSION_END -->

### Type Checker

To ensure tsz is a drop-in replacement for `tsc`, we run the official TypeScript conformance
test suite against it.


<!-- CONFORMANCE_START -->
```
Progress: [███████████████░░░░░] 73.2% (9,210/12,574 tests)
```
<!-- CONFORMANCE_END -->

### Emitter

We compare tsz JavaScript/declaration emit output against TypeScript's baseline files
to ensure correct code generation.

<!-- EMIT_START -->
```
JavaScript:  [█████████████░░░░░░░] 66.5% (8,848 / 13,315 tests)
Declaration: [███████░░░░░░░░░░░░░] 34.5% (663 / 1,923 tests)
```
<!-- EMIT_END -->

### Language Service

We run TypeScript's fourslash language service tests against `tsz-server` to measure
language service feature coverage (completions, quickinfo, go-to-definition, etc.).

<!-- FOURSLASH_START -->
```
Progress: [███░░░░░░░░░░░░░░░░░] 14.6% (957 / 6,564 tests)
```
<!-- FOURSLASH_END -->


<a id="footnote-1">1</a>: "Zang" is the Persian word for "rust".