Benchmarking tsrs Against tsc: An AI-Generated Rust TypeScript Compiler
Reports name Cloudflare and VoidZero behind tsrs, described as an AI-generated Rust port of TypeScript. But the public reporting confirms no version, compatibility matrix, API surface, or installable artifact. So instead of repeating a speedup number, this video walks through the harness: capture a tsc baseline with extended diagnostics, check whether the checker reproduces TypeScript's deliberate unsoundness and diagnostic identity, and see why the compiler API matters as much as the CLI. The rule is correctness first: matching diagnostics and emit gate adoption, then wall clock and peak RSS. Read the full write-up for the three-corpus setup and version pinning: https://hackyjs.com/posts/benchmarking-tsrs-against-tsc-testing-an-ai-generated-rust-typescript-compiler-before-it-hits-your-build-pipel