codegen: emit .js + .d.ts directly, remove SWC dependency, add async cancellation support#20
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codegen: emit .js + .d.ts directly, remove SWC dependency, add async cancellation support#20
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…cancellation support
qiutongMS
approved these changes
Apr 20, 2026
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Summary
Replace the TypeScript → SWC transpilation pipeline with direct .js + .d.ts emission from Rust. This eliminates the @swc/core
runtime dependency, makes generated output immune to user tsconfig settings, and simplifies the npm package.
Also adds AbortSignal cancellation support for WinRT async operations throughout the stack.
Architecture
Before: metadata → typescript.rs → .ts → @swc/core → .js After: metadata → project.rs (IR) → render_js.rs → .js /
render_dts.rs → .d.ts
New IR layer (projected.rs) cleanly separates projection decisions (naming, type mapping, async detection) from rendering.
The renderers are purely mechanical formatters.