From GitHub · · 1m 50s
GitHub - pingdotgg/ts-rust: An experimental Rust port of the TypeScript 7 compiler (tsc)
OpenAI models ported TypeScript 7 compiler to Rust for $24k.
In brief
OpenAI models ported TypeScript 7 compiler to Rust for $24k. OpenAI models created a Rust version of TypeScript 7 compiler that works with 120 open-source projects. Originally reported by GitHub.
ts-rust
ts-rust is an experimental Rust port of Microsoft's TypeScript compiler that works with 120 open-source projects.
“ts-rust (aka tsc-rs)”
Cost to build
It cost over $420,000 in tokens to port TypeScript 7 to Rust using OpenAI models, but the final version cost ~$24,047.
“it cost over $420,000 in tokens to do it, but you could probably have done it for ~$20k”
Motivations
The project aimed to test LLMs, create a fast TypeScript type checker, and build a compiler that works in WASM with high performance.
“motivations test model capabilities make a fast typescript type checker make a ts checker that can work in wasm with high performance”
Model performance
Opus 5.5 completed the port in 10 hours, writing over 1.3 million lines of Rust code with 84% compatibility.
“it had a working v0 in 10 hours”
Installation
Install with npm install -D tsc-rs and run npx tsc-rs -p tsconfig.json for a drop-in replacement.
“npm install -D tsc-r. npx tsc-rs -p tsconfig.json”
Effect diagnostics
tsc-rs includes Effect language service diagnostics built in, requiring no second compiler for Effect projects.
“tsc-rs has the effect language service diagnostics built in (codes 377xxx)”
Compatibility
tsc-rs has 100% compatibility with 120 open-source projects and passes all 181,711 Go tests.
“it has 100% compatibility in every real world project we have tested”
Benchmark results
tsc-rs is 7.1× faster than TypeScript 6 on average and 1.61× faster than TypeScript 7 on real-world apps.
“geometric mean seven point one times”
Real-world apps
tsc-rs runs faster than TypeScript 6 on VS Code, Sentry, Playwright, Excalidraw, TypeORM, and tRPC.
“vs code sentry playwright excalidraw typeorm tRPC”
Known problems
tsc-rs reports errors in monorepos and has memory issues during long edit sessions.
“in some monorepos the source files of a workspace package are reachable both through node_modules and through a direct import”
Development
The project uses Rust crates for the compiler and has tools for generating code and testing.
“crates/ts_goport is the compiler”
Releases
Releases are tagged with v<version> and published to npm with GitHub releases.
“push a tag v<version> for example v0.1.0”
License
The project uses MIT license with TypeScript (Apache-2.0) and Go standard library (BSD-3-Clause).
“mit the port keeps the licenses and notices of the code it ports typescript apache-2.0 and parts of the go standard library bsd-3-clause”
The main idea
OpenAI models created a Rust version of TypeScript 7 compiler that works with 120 open-source projects.
