Switch to SWC for faster transpilation #21

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opened 2026-03-01 16:30:19 +00:00 by irammini · 0 comments

irammini commented

2026-03-01 16:30:19 +00:00

(Migrated from github.com)

Context

Currently, the project uses tsc for both transpilation and type-checking. As the codebase grows, this slows down development and CI/CD pipelines.

Proposal

I propose migrating the transpilation layer to SWC (Rust-based, significantly faster) while keeping tsc --noEmit exclusively for type-checking.

Benefits

Performance: Drastically faster build times.
Type Safety: Retains full TypeScript validation without the overhead of file emission.
Modernization: Leverages high-performance tooling common in the ecosystem.

To-do

Add @swc/core and @swc/cli dependencies.
Configure .swcrc to match current tsconfig.json settings.
Update package.json scripts:

build: Run swc for output.
typecheck: Run tsc --noEmit.

### **Context** Currently, the project uses `tsc` for both transpilation and type-checking. As the codebase grows, this slows down development and CI/CD pipelines. ### **Proposal** I propose migrating the transpilation layer to **SWC** (Rust-based, significantly faster) while keeping **`tsc --noEmit`** exclusively for type-checking. ### **Benefits** * **Performance:** Drastically faster build times. * **Type Safety:** Retains full TypeScript validation without the overhead of file emission. * **Modernization:** Leverages high-performance tooling common in the ecosystem. ### **To-do** 1. Add `@swc/core` and `@swc/cli` dependencies. 2. Configure `.swcrc` to match current `tsconfig.json` settings. 3. Update `package.json` scripts: * `build`: Run `swc` for output. * `typecheck`: Run `tsc --noEmit`.